CN109244804A - Laser and its laser export head - Google Patents
Laser and its laser export head Download PDFInfo
- Publication number
- CN109244804A CN109244804A CN201811289665.3A CN201811289665A CN109244804A CN 109244804 A CN109244804 A CN 109244804A CN 201811289665 A CN201811289665 A CN 201811289665A CN 109244804 A CN109244804 A CN 109244804A
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- water cooling
- laser
- cooling part
- shell
- diaphragm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/0407—Liquid cooling, e.g. by water
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Laser Beam Processing (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a kind of laser export heads, laser energy component is installed including inside and carries out the water cooling component of water-cooling to it, the water cooling component includes shell and water cooling part, the water cooling part is contained in the shell, the water cooling part outer wall is formed with double-stranded cooling bath, two cooling baths are connected at one end, are respectively formed water inlet interface and water outlet mouthpiece in the other end, also, the water cooling part is pushed against by the convex portion for forming the cooling bath on its outer wall is fixed on the outer casing inner wall.The invention also discloses a kind of lasers.By above embodiment, the contact area of cooling water and water cooling part is improved, and then radiating efficiency can be improved so that heat dissipation in time, can effectively prevent the problem of occurring burning up fine or burning laser strongly due to light echo.
Description
Technical field
The present invention relates to laser equipment technical fields more particularly to a kind of myriawatt grade superpower laser and its laser to export
Head.
Background technique
With laser higher power cutting, in terms of using more more and more universal, to the Gao Gong of myriawatt grade
The demand of rate laser export head is increasing.However, current myriawatt grade laser export head mostly uses external LK-D type knot
Structure, it is bulky, structure is complicated, especially when cutting highly reflective material or welding, usually because light echo occurs strongly
The case where burning up fine or burning laser.
Summary of the invention
The present invention provides one kind to solve above-mentioned technical problem and is suitable for high-power laser and its laser export head, leads to
The water cooling part that setting has double-stranded cooling bath is crossed, improves the contact area of cooling water Yu water cooling part, and then can be with
Radiating efficiency is improved so that heat dissipation, can effectively prevent occurring burning up fine or burning laser ask strongly due to light echo in time
Topic.
In order to solve the above technical problems, the present invention provides a kind of laser export head, including inside is equipped with laser energy group
Part and the water cooling component that water-cooling is carried out to it, the water cooling component include shell and water cooling part, and the water cooling part is contained in
In the shell, the water cooling part outer wall is formed with double-stranded cooling bath, two cooling baths are connected at one end,
The other end is respectively formed water inlet interface and water outlet mouthpiece, also, the water cooling part is by forming the cooling bath on its outer wall
The outer casing inner wall is fixed in convex portion abutting.
Further, the water cooling part inner wall is formed with double-stranded groove, the double-stranded groove pair
The convex portion to form the double-stranded cooling bath should be nested in；The water cooling part is by highly heat-conductive material by black matrix
Change and handles and manufactured water cooling part.
Further, the laser energy component include energy-transmission optic fibre and be set in the shell and with the water cooling
The quartzy end cap of part coaxial arrangement, the quartz end cap include the frustum of a cone that frosted processing is done on surface and frustoconical bevel angle is 45 degree
Section is set to the truncted cone section miner diameter end and surface does the first cylindrical section of polishing treatment and is set to butt circle
The second cylindrical section of polishing treatment is done on cone section bigger diameter end and surface, and first cylindrical section is arranged adjacent to the water cooling part, described
Energy-transmission optic fibre is coaxial with the first cylindrical section of the quartzy end cap after the water cooling part along the central axis of the water cooling part
Connection.
Further, be installed with the diaphragm part of inner hollow in the shell, diaphragm part one end be externally formed with
Compatible first mounting portion of the water cooling part end construction, is formed with inside the diaphragm part other end and the quartzy end cap
The first cylindrical section, truncted cone section and compatible second mounting portion of at least partly the second cylinder segment structure, the water cooling part
It is plugged and fixed in first mounting portion, the first cylindrical section of the quartz end cap, truncted cone section and the second cylindrical section at least portion
Divide and be plugged and fixed in second mounting portion and wrapped up by second mounting portion, the energy-transmission optic fibre sequentially passes through the water
After cold part and the diaphragm part with the coaxial welding of the first cylindrical section of the quartzy end cap.
Further, the shell includes fastener and the main casing for being assemblied in described fastener one end, the fastener
Other end inner wall is formed with limiting section, and the second mounting portion end abutment of the diaphragm part is arranged in the limiting section to prevent it
Axial movement, the second mounting portion outside of the diaphragm part, which is formed with, abuts the support portion to the fastener inner wall to prevent it
It moves radially.
Further, one end outer wall that the fastener forms the limiting section is equipped with camera lens part, the camera lens part packet
The diaphragm for including the mirror holder being assemblied on the fastener and being assemblied on the mirror holder, the diaphragm are parallel to the quartz
The end face of second cylindrical section of end cap is arranged；The mirror holder is formed by kovar alloy is gold-plated, and the diaphragm is by high purity quartz material
Material plating high transmittance film forms；
By golden soldering and welding at the camera lens part after the mirror holder and the metallized processing of the diaphragm, alternatively, the mirror
Frame is with the diaphragm through lead-free low-temperature glass solder at the camera lens part.
Further, the water cooling part is provided with stair-stepping rotary table, the shell far from one end of the quartzy end cap
End closed by the rotary table, the rotary table bottom is provided with the slot axially extended to inside the water cooling part, described
Grafting is fixed with light-blocking fixing piece in slot, the energy-transmission optic fibre sequentially pass through after the light-blocking fixing piece, the water cooling part with
The coaxial welding of the first cylindrical section of the quartz end cap；The light-blocking fixing piece is formed by kovar alloy is gold-plated, described light-blocking solid
Determine one end that part is inserted into inside the water cooling part and convexes to form arc surface.
Further, the energy-transmission optic fibre is formed with first gradient stripping mould, institute adjacent to one section of region of the quartzy end cap
It states energy-transmission optic fibre and is located at one section of region of the light-blocking fixing piece and be formed with the second gradient stripping mould, first gradient stripping mould and institute
The second gradient stripping mould is stated to be formed by the time of corrosion or etching, length, depth, spacing distance；It is shelled in the first gradient
Mould and the gradient second shell the photoelectric sensor of the intensity of intensity and return light that monitoring stripping mould light is provided at mould position；
It is at least provided with the temperature sensor of monitoring temperature on the light-blocking fixing piece and controls the temperature of power on/off according to temperature
Control switch.
Further, the laser output head-tail is provided with fiber optic protection component, and the fiber optic protection component includes packet
Cover the armour cable of the energy-transmission optic fibre positioned at the outer side of shell, the first armour cable fixing sleeve of fixed armour cable one end, fixation
Second armour cable fixing sleeve of the armour cable other end and be sheathed on the first armour cable fixing sleeve and the second armour cable fixing sleeve it
Between the armour cable on spring, the second armour cable fixing sleeve is mounted on the shell.
In order to solve the above technical problems, the laser includes such as any of the above-described the present invention also provides a kind of laser
Laser export head described in embodiment.
Laser and its laser export head of the invention, has the following beneficial effects:
There is the water cooling part of double-stranded cooling bath by setting outer wall, increase the contact surface of cooling water Yu water cooling part
Radiating efficiency can be improved so that heat dissipation is timely, and then can prevent occurring burning up fine or burning laser strongly due to light echo in product
Device；
In addition, can be improved laser absorption rate and heat by handling using highly heat-conductive material and through black matrix water cooling part
Exchange rate further promotes heat dissipation in time；
Also, by corresponding to double-stranded convex portion nesting in water cooling part inner wall, double-stranded groove is set, at
The absorbing surface for improving laser again, and depressed section, that is, groove forms laser absorption well construction, forms class black matrix, can will shell
The laser that the energy-transmission optic fibre of mould scatters out fully absorbs, and without will form reflection, reduces high backward-reflected laser to stripping mode fiber and tail
The damage of portion's optical fiber reduces multiple reflections and is coupled into the light energy of core segment, while reducing the laser reflected back to tail
Damage from laser caused by portion's structural member can be improved the anti-anti- ability of height of entire laser.
Detailed description of the invention
Fig. 1 is the perspective view of laser export head first embodiment of the present invention.
Fig. 2 is the cross-sectional view of laser export head shown in Fig. 1.
Fig. 3 is the perspective view of water cooling part in laser export head shown in Fig. 2.
Fig. 4 is the cross-sectional view of water cooling part in laser export head shown in Fig. 2.
Fig. 5 is the enlarged diagram of quartzy end cap in laser export head shown in Fig. 2.
Fig. 6 is the perspective view of diaphragm part in laser export head shown in Fig. 2.
Fig. 7 is the cross-sectional view of diaphragm part shown in Fig. 6.
Fig. 8 is the perspective view of fastener in laser export head shown in Fig. 2.
Fig. 9 is the cross-sectional view of fastener shown in Fig. 8.
Figure 10 is the perspective view of laser export head second embodiment of the present invention.
Specific embodiment
The present invention is described in detail with embodiment with reference to the accompanying drawing.
" preceding " that the present invention may refer to, " head " refer to the output end side on laser outbound course, and the present invention may refer to
" rear ", " end ", " tail " refer to the input terminal side on laser outbound course.
The present invention provides a kind of laser, which is specially optical fiber laser comprising one as shown in Figure 1
Laser export head 100.The laser and laser export head 100 are particularly suitable for the output of myriawatt grade high power laser light.
As shown in Fig. 2, laser outbound course is from lower-left toward upper right in laser export head 100, light echo is contrary.This swashs
Light output head 100 includes water cooling component and the laser energy component being installed in water cooling component, and water cooling component passes through to laser
Can component carry out timely cooling heat dissipation, can prevent from generating due to such as light echo etc. burn up caused by heat build-up fibre or
The problem of burning laser.
With continued reference to Fig. 2, which includes shell 1 and the water cooling part 13 that is contained in shell 1, and the two is in structure
It is adapted, for example, often with standby tubular accommodating space inside shell 1,13 phase of water cooling part should be tubular structure (i.e. water cooling tube).
Specifically, in conjunction with Fig. 2 and Fig. 3 refering to, 13 outer wall of water cooling part be formed with double-stranded cooling bath 131,
132, two cooling baths 131,132 indeed through 13 outer wall of water cooling part formed double helix line convex portion 130 and
It is formed.Wherein, which is connected at one end, is respectively formed water inlet interface and water outlet mouthpiece in the other end,
For the water inlet interface and water outlet mouthpiece position selection specifically can according to demand depending on.It is provided on shell 1 and water cooling part
The water supply connector 111 and the water outlet connector 112 connecting with water outlet mouthpiece in water cooling part 13, the water inlet that water inlet interface connects in 13 connect
First 111 and water outlet connector 112 usually connect with cooling-water machine so that constitute a complete water circulation path.The water cooling part 13 insertion
1 inner wall of shell is closely connected to by the convex portion 130 for forming cooling bath on its outer wall when in shell 1 and then realizes fixation,
And then two cooling baths 131,132 constitute two independent cooling ducts together with shell 1 so that coolant liquid such as cold water circulates.
Refering to Fig. 3, coolant liquid citing is first flowed up, and is flowed still further below, when coolant liquid is flowed into from the water inlet interface of cooling bath 131, first
It flows, enters when reaching end (such as the top) of the cooling bath 131 another from a direction (as upwards) along cooling bath 131
A cooling bath 132 and (downward) flowing of turning around, finally flow out from the water outlet mouthpiece of the cooling bath 132.
There is the water cooling part 13 of double-stranded cooling bath 131,132 by setting outer wall, increase coolant liquid and water
The contact area of cold part 13, and coolant liquid can directly to shell 11 carry out impinging cooling, and then improve radiating efficiency so that
Heat dissipation in time, can prevent the problem of occurring burning up fine or burning laser strongly due to light echo.
In a preferred embodiment, in conjunction with Fig. 2 and Fig. 4 refering to 13 inner wall of water cooling part is also formed with double-stranded ditch
Slot 133.More preferably, which is nested in form the convex of double-stranded cooling bath 131,132
Play part 130.The absorbing surface of laser can be increased at double in this way, and depressed section i.e. groove 133 is made to be capable of forming laser
Absorb well construction, and then formed class black matrix, the laser that the energy-transmission optic fibre 21 for shelling mould scatters out can be fully absorbed without
Reflection is formed, the high reflective damage to stripping mode fiber and tail portion optical fiber is reduced, reduces multiple reflections and be coupled into core segment
Light energy, while the laser damage from laser caused by optoelectronic components in laser reflected back is reduced, and then can be improved whole
The anti-anti- ability of height of a laser.
In above-described embodiment, the inside and outside wall of water cooling part 13 is respectively formed double-layer double spiral structure, increases water cooling face and extinction
Water cooling face is furthered while the area in face again at a distance from extinction face, greatly improves heat transfer rate, increases cooling effect, is promoted
Water cooling part 13 inner wall damage threshold will not occur burning up fine or appearance the problem of burn laser even if generating strong light echo.
Preferably, preferably, water cooling part 13 is handled by black matrixization by highly heat-conductive material and is made.It for example, can be with
It is carried out in such a way that prolonged anode hardening true qualities aoxidize or rifle nickel is electroplated by the highly heat-conductive materials such as aluminium alloy or red copper
Black matrixization processing.It can be improved laser absorption rate and rate of heat exchange in this way, promote heat dissipation in time.
Incorporated by reference to Fig. 2 and Fig. 5 refering to laser energy component includes energy-transmission optic fibre 21 and quartzy end cap 22.Quartzy end cap 22
It is set in shell 1, and the quartz end cap 22 and water cooling part 13 are coaxially disposed.Wherein, quartzy end cap 22 is three stage structure,
It include truncted cone section 221, the first cylindrical section 222 for being set to 221 miner diameter end of truncted cone section and be set to butt circle
The second cylindrical section 223 for boring 221 bigger diameter end of section, along laser outbound course, first cylindrical section 222, truncted cone section 221 and
Second cylindrical section 223 is set gradually.Polishing treatment, diameter after polishing are done in first cylindrical section 222 and 223 surface of the second cylindrical section
Precision can achieve within positive and negative 5 microns；Do frosted processing in 221 surface of truncted cone section.First cylindrical section 222 is adjacent to water cooling
Part 13 is arranged, first cylindrical section of the energy-transmission optic fibre 21 along the central axis of water cooling part 13 after water cooling part 13 with quartzy end cap 22
222 is coaxially connected.Wherein, quartzy end cap 22 generallys use high purity quartz material and is made, close with 21 fusing point of energy-transmission optic fibre, into
And energy-transmission optic fibre 21 is preferably welded together by way of such as laser welding or electric discharge welding with quartzy end cap 22.
Preferably, the frustoconical bevel angle of truncted cone section 221 is 45 degree, since the refractive index of quartz material is in 1080nm wave band
It is nearby 1.44, the angle of total reflection is 44 degree, when return light is incident on the 45 of truncted cone section 221 with the low-angle of less parallel light
When spending on the frosted conical surface, most light can form total reflection on its 45 degree of conical surfaces, approximately along original optical path after 2 secondary reflections
It reflects back, substantially increases the ability of the anti-high return light of product.
Preferably, can be by circular arc chamfering 224 excessively, to improve between the first cylindrical section 222 and truncted cone section 221
The structural strength of quartzy end cap 22.
In one embodiment, in conjunction with Fig. 2 and Fig. 6 refering to fixed useful highly heat-conductive material such as red copper is gold-plated in shell 1
Manufactured diaphragm part 23 is hollow structure inside the diaphragm part 23.Wherein, which is externally formed with and water cooling part
13 end constructions compatible first mounting portion 231 is formed with first with quartzy end cap 22 inside 23 other end of diaphragm part
Cylindrical section 222, truncted cone section 221 and compatible second mounting portion 232 of 223 structure of at least partly the second cylindrical section, this
One mounting portion 231 and the second mounting portion 232 are also coaxial arrangement relationship.
Wherein, which is cyclic annular groove body with 13 end adapter of water cooling part, water cooling part 13 be plugged and fixed in
First mounting portion 231.As shown in fig. 7, second mounting portion 232 includes being adapted to the first cylindrical section 222 of quartzy end cap 22
Cylindric slot 2321, be connected to the cylindric slot 2321 and compatible with the truncted cone section 221 of quartzy end cap 22
Frusto-conical slot 2322 and be connected with the frusto-conical slot 2322 and with the second cylindrical section with quartzy end cap 22
223 compatible cylindric slots 2323, and then the first cylindrical section 222, truncted cone section 221 and the second circle in quartzy end cap 22
Shell of column 223 is at least partly plugged and fixed in the second mounting portion 232 and is wrapped up (fitting) by the second mounting portion 232, and then passes energy
Optical fiber 21 sequentially passes through the coaxial welding of the first cylindrical section 222 after water cooling part 13 and diaphragm part 23 with quartzy end cap 22.Preferably,
Fusion point is located in cylindric slot 2321.Wherein, second mounting portion 232 has the butt with quartzy end cap 22 in diaphragm part 23
Compatible (45 degree) conical surface of conical section 221, most return light can in quartzy end cap 22 truncted cone section 221 the conical surface
Upper formation total reflection, least a portion of transmitted light scatter in diaphragm part 23 through the conical surface of truncted cone section 221 in quartzy end cap 22
What the second mounting portion 232 had is all on 45 degree of the conical surface, to reduce the optical energy density of return light on diaphragm part 23, improve
The heat-sinking capability of quartzy end cap 22, and be conducive to alleviate the heat history of fusion point, so that it is defeated to substantially increase laser on the whole
Lift one's head the abilities of the 100 anti-return light of height.In addition, being formed on the inside of one end of the fixation of diaphragm part 23 and positioning water cooling part 13 hollow
And with the second mounting portion 232(be specially cylindric slot 2321) the frusto-conical structure 234 that is connected to, laser can reject heat to
In the inner space of frusto-conical structure 234, be conducive to the heat history for alleviating fusion point.
The width of light beam of laser not only can be constrained in the setting of the diaphragm part 23, but also the diaphragm part 23 can be with coolant liquid
The contact for carrying out high surface area carries out heat exchange, greatly improves the laser damage threshold that diaphragm part 23 is able to bear, furthermore should
Diaphragm part 23 can play the positioning and fixed function to water cooling part 13 and quartzy end cap 22, improve the alignment of laser output.
In one embodiment, Fig. 2, Fig. 8 and Fig. 9 are please referred to, shell 1 includes fastener 12 and is assemblied in fastener 12
The main casing 11 of one end, is such as connected by way of socket between fastener 12 and main casing 11.12 other end inner wall of fastener
It is formed with limiting section 120,232 end abutment of the second mounting portion of diaphragm part 23 is arranged to prevent it from axially moving in limiting section 120
It is dynamic, wherein the limiting section 120 citing can be stepped.Further, it is formed on the outside of the second mounting portion 232 of diaphragm part 23
Have and abuts the support portion 233 to 12 inner wall of fastener to prevent it from moving radially.The design of the fastener 12 reduces department of assembly
Part, greatly reduced the superposition of the tolerance of machining, and play the positioning and fixed function to diaphragm part 23, be conducive to
The positioning and fixation of water cooling part 13 and quartzy end cap 22 on diaphragm part 23, improve the concentricity of laser output.Further, since
Fastener 12 is abutted with water cooling part 13 and diaphragm part 23, is a part in water cooling component, coolant liquid can direct impinging cooling
Fastener 12 improves the heat dissipation of quartzy end cap 22, reduces the thermal lensing effect of high power laser light.
In one embodiment, one end outer wall that fastener 12 forms limiting section 120 is equipped with camera lens part 4, fastener
It is such as connected by way of buckle between 12 and camera lens part 4, which realizes 1 front end of shell closed.Camera lens part 4 wraps
The diaphragm 42 for including the mirror holder 41 being assemblied on fastener 12 and being assemblied on mirror holder 41, diaphragm 42 are parallel to quartzy end cap 22
The second cylindrical section 223 end face setting.Wherein, mirror holder 41 is formed by kovar alloy is gold-plated, and diaphragm 42 is by high purity quartz material
Material plating high transmittance film forms.Further, pass through golden soldering and welding into camera lens part after mirror holder 41 and the metallized processing of diaphragm 42
4, alternatively, mirror holder 41 and diaphragm 42 are through lead-free low-temperature glass solder at camera lens part 4.The camera lens part 4 can be subjected to the pressure of 100N
Power is simultaneously resistant to 400 degree of high temperature, solves the problems, such as to loosen shaking when the screw thread clast and high-frequency vibration of conventional structure assembling.
In one embodiment, as shown in Figures 2 and 3, water cooling part 13 is provided with rank far from one end of quartzy end cap 22
The end of the rotary table 134 of scalariform, shell 1 is closed by rotary table 134, and further, 134 bottom of rotary table, which is provided with, to be axially extended to
Slot inside water cooling part 13, grafting is fixed with light-blocking fixing piece 3 in slot, the usual light-blocking 3 partial insertion water cooling of fixing piece
In part 13.Energy-transmission optic fibre 21 sequentially passes through same with the first cylindrical section 222 of quartzy end cap 22 after light-blocking fixing piece 3, water cooling part 13
Axis welding.
Preferably, the light-blocking fixing piece 3 is formed by kovar alloy is gold-plated, it can be solid in the light-blocking 3 tail portion dispensing of fixing piece
Determine energy-transmission optic fibre 21, which can greatly reduce structural member and glue because of the low thermal coefficient of expansion of kovar alloy
Influence of the thermal stress to energy-transmission optic fibre 21.More preferably, one end that light-blocking fixing piece 3 is inserted into inside water cooling part 13 has convexed to form
Return light can be reflected on the inner wall of water cooling part 13 by arc surface in the form of spheric reflection, reduce return light to tail portion light
Fine damage.
Further, as shown in Fig. 2, waterproof apron can be arranged between the rotary table 134 of 13 rear end of shell 1 and water cooling part
51, and waterproof apron 52 is set between light-blocking fixing piece 3 and rotary table 134, to prevent coolant liquid from revealing from corresponding contact position.
It is also possible between 13 front end of shell 1 and water cooling part, specifically in the second mounting portion 232 of shell 1 and diaphragm part 23() between
Waterproof apron 53 is set, to prevent coolant liquid from revealing from corresponding contact position.
In one embodiment, energy-transmission optic fibre 21 shells mould with gradient.Specifically, the neighbouring quartzy end of energy-transmission optic fibre 21
One section of region of cap 22 is formed with first gradient stripping mould, and one section of region that energy-transmission optic fibre 21 is located at light-blocking fixing piece 3 is formed with the
Two gradients shell mould, and first gradient shells mould and the second gradient stripping mould passes through the time of corrosion or etching, length, depth, spacing distance
And it is formed.
In a preferred embodiment, it can be shelled in first gradient and be respectively arranged to supervise at mould and the second gradient stripping mould position
The photoelectric sensor (not shown) of the intensity of stripping mould light and the intensity of return light is surveyed, the photoelectric sensor is when need to use and outside
The laser master control borad in portion is electrically connected.
Further, with continued reference to Fig. 2, the temperature for monitoring temperature can be at least set on light-blocking fixing piece 3
Spend sensor 61 and the temperature detect switch (TDS) 62 for controlling power on/off (temperature height powers off, temperature low pass electricity) according to temperature, the temperature
Sensor 61 can be thermistor, the temperature sensor 61 and temperature detect switch (TDS) 62 when need to use with external laser master
Control plate electrical connection.In addition, photoelectric sensor above-mentioned can also be installed in the position of mounting temperature sensor 61.
In a preferred embodiment, as shown in Figure 10,100 tail portion of laser export head is provided with for protecting energy-transmission optic fibre 21
Fiber optic protection component 7.Specifically, the fiber optic protection component 7 includes the energy-transmission optic fibre 2121 that cladding is located at 11 outside of shell
Armour cable 71, the first armour cable fixing sleeve 72 of fixed 71 one end of armour cable, fixed 71 other end of armour cable the second armour cable fixing sleeve 73
And at least one being sheathed on the armour cable 71 between the first armour cable fixing sleeve 72 and the second armour cable fixing sleeve 73 prevents armour cable
The spring 74 of 71 bendings, the second armour cable fixing sleeve 73 are mounted on 11 end of shell, i.e., shell 11 is close to light-blocking fixing piece 3
One end.
The laser export head that the present invention also provides a kind of as described in any of the above-described embodiment.For laser export head
Description no longer repeats one by one herein referring specifically to previously described laser export head.
Laser and its laser export head of the invention, has the following beneficial effects:
There is the water cooling part 13 of double-stranded cooling bath 131,132 by setting outer wall, increase cooling water and water cooling part
Radiating efficiency can be improved so that heat dissipation is timely, and then can prevent from burning up strongly due to light echo in 13 contact area
Fine or burning laser；
In addition, by water cooling part 13 using highly heat-conductive material and handling through black matrix, can be improved laser absorption rate and
Rate of heat exchange further promotes heat dissipation in time；
Also, double-stranded convex portion 130 is nested to be arranged double-stranded ditch by corresponding in 13 inner wall of water cooling part
Slot 133 has increased exponentially the absorbing surface of laser, and depressed section, that is, groove 133 forms laser absorption well construction, and it is black to form class
Body can fully absorb the laser that the energy-transmission optic fibre 21 for shelling mould scatters out, and without will form reflection, reduce high backward-reflected laser pair
The damage of mode fiber and tail portion optical fiber is shelled, multiple reflections is reduced and is coupled into the light energy of core segment, while reducing and being reflected back
The laser gone damage from laser caused by tail structure part can be improved the anti-anti- ability of height of entire laser.
The above is only embodiments of the present invention, are not intended to limit the scope of the invention, all to utilize the present invention
Equivalent structure or equivalent flow shift made by specification and accompanying drawing content is applied directly or indirectly in other relevant technologies
Field is included within the scope of the present invention.
Claims (10)
1. a kind of laser export head is equipped with laser energy component including inside and carries out the water cooling component of water-cooling to it,
It is characterized by:
The water cooling component includes shell and water cooling part, and the water cooling part is contained in the shell, the water cooling part outer wall shape
At there is double-stranded cooling bath, two cooling baths are connected at one end, are respectively formed water inlet interface in the other end and go out
Water interface, also, the water cooling part pushes against by the convex portion for forming the cooling bath on its outer wall and is fixed on the shell
Inner wall.
2. laser export head according to claim 1, it is characterised in that:
The water cooling part inner wall is formed with double-stranded groove, and the double-stranded groove correspondence is nested in form institute
State the convex portion of double-stranded cooling bath；
The water cooling part be highly heat-conductive material by black matrixization processing and made of water cooling part.
3. laser export head according to claim 1, it is characterised in that:
The laser energy component includes energy-transmission optic fibre and is set to the stone in the shell and with water cooling part coaxial arrangement
English end cap, the quartz end cap include surface do the truncted cone section that frosted processing and frustoconical bevel angle are 45 degree, be set to described in
Truncted cone section miner diameter end and surface do the first cylindrical section of polishing treatment and be set to the truncted cone section bigger diameter end and
The second cylindrical section of polishing treatment is done on surface, and first cylindrical section is arranged adjacent to the water cooling part, the energy-transmission optic fibre along
The central axis of the water cooling part is coaxially connected with the first cylindrical section of the quartzy end cap after the water cooling part.
4. laser export head according to claim 3, it is characterised in that:
The diaphragm part of inner hollow is installed in the shell, diaphragm part one end is externally formed with and water cooling part end
Compatible first mounting portion of structure, be formed with inside the diaphragm part other end with the first cylindrical section of the quartzy end cap,
Truncted cone section and compatible second mounting portion of at least partly the second cylinder segment structure, the water cooling part are plugged and fixed in described
First mounting portion, the first cylindrical section of the quartz end cap, truncted cone section and the second cylindrical section are at least partly plugged and fixed in institute
It states the second mounting portion and is wrapped up by second mounting portion, the energy-transmission optic fibre sequentially passes through the water cooling part and the diaphragm
After part with the coaxial welding of the first cylindrical section of the quartzy end cap.
5. laser export head according to claim 4, it is characterised in that:
The shell includes fastener and the main casing for being assemblied in described fastener one end, and the fastener other end inner wall is formed
There is limiting section, the second mounting portion end abutment of the diaphragm part is arranged in the limiting section to prevent its axial movement, described
It is formed on the outside of second mounting portion of diaphragm part and abuts the support portion to the fastener inner wall to prevent it from moving radially.
6. laser export head according to claim 5, it is characterised in that:
One end outer wall that the fastener forms the limiting section is equipped with camera lens part, and the camera lens part includes being assemblied in the card
Mirror holder on fastener and the diaphragm being assemblied on the mirror holder, the diaphragm are parallel to the second cylinder of the quartzy end cap
The end face setting of section；
The mirror holder is formed by kovar alloy is gold-plated, and the diaphragm is formed by high purity quartz material plating high transmittance film；
By golden soldering and welding at the camera lens part after the mirror holder and the metallized processing of the diaphragm, alternatively, the mirror
Frame is with the diaphragm through lead-free low-temperature glass solder at the camera lens part.
7. laser export head according to claim 3, it is characterised in that:
The water cooling part is provided with stair-stepping rotary table far from one end of the quartzy end cap, and the end of the shell passes through described
Rotary table closing, the rotary table bottom is provided with the slot axially extended to inside the water cooling part, is plugged and fixed in the slot
Have a light-blocking fixing piece, the energy-transmission optic fibre sequentially pass through after the light-blocking fixing piece, the water cooling part with the quartzy end cap
The coaxial welding of first cylindrical section；
The light-blocking fixing piece is formed by kovar alloy is gold-plated, and one end that the light-blocking fixing piece is inserted into inside the water cooling part is convex
It rises and is formed with arc surface.
8. laser export head according to claim 7, it is characterised in that:
The energy-transmission optic fibre is formed with first gradient stripping mould adjacent to one section of region of the quartzy end cap, and the energy-transmission optic fibre is located at
One section of region of the light-blocking fixing piece is formed with the second gradient stripping mould, and the first gradient stripping mould and second gradient shell mould
It is formed and time for corroding or etching, length, depth, spacing distance；
The intensity that monitoring stripping mould light is provided at mould and second gradient stripping mould position and return light are shelled in the first gradient
Intensity photoelectric sensor；
It is at least provided with the temperature sensor of monitoring temperature on the light-blocking fixing piece and power on/off is controlled according to temperature and uses
Temperature detect switch (TDS).
9. laser export head according to claim 1, it is characterised in that:
The laser output head-tail is provided with fiber optic protection component, and the fiber optic protection component includes that cladding is located at the shell
The armour cable of the energy-transmission optic fibre in outside, the first armour cable fixing sleeve of fixed armour cable one end, the fixed armour cable other end
The second armour cable fixing sleeve and the armour cable that is sheathed between the first armour cable fixing sleeve and the second armour cable fixing sleeve on
Spring, the second armour cable fixing sleeve is mounted on the shell.
10. a kind of laser, which is characterized in that including laser export head as described in any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811289665.3A CN109244804B (en) | 2018-10-31 | 2018-10-31 | Laser and laser output head thereof |
| PCT/CN2019/111828 WO2020088265A1 (en) | 2018-10-31 | 2019-10-18 | Laser and laser output head thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811289665.3A CN109244804B (en) | 2018-10-31 | 2018-10-31 | Laser and laser output head thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109244804A true CN109244804A (en) | 2019-01-18 |
| CN109244804B CN109244804B (en) | 2020-06-09 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811289665.3A Active CN109244804B (en) | 2018-10-31 | 2018-10-31 | Laser and laser output head thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109244804B (en) |
| WO (1) | WO2020088265A1 (en) |
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| CN110161628A (en) * | 2019-05-29 | 2019-08-23 | 广东国志激光技术有限公司 | Optical fiber transmission mechanism and liquid cooled module |
| CN110676677A (en) * | 2019-10-14 | 2020-01-10 | 南昌航空大学 | Kilowatt-level cladding light stripper in optical fiber laser |
| WO2020088265A1 (en) * | 2018-10-31 | 2020-05-07 | 苏州创鑫激光科技有限公司 | Laser and laser output head thereof |
| CN112162370A (en) * | 2020-09-25 | 2021-01-01 | 武汉锐科光纤激光技术股份有限公司 | Laser transmission optical cable |
| CN113067236A (en) * | 2021-02-24 | 2021-07-02 | 武汉锐科光纤激光技术股份有限公司 | Laser output head |
| CN115189210A (en) * | 2022-09-13 | 2022-10-14 | 广东盛田科技有限公司 | High-power optical fiber laser output head with cooling function |
| CN115430937A (en) * | 2022-11-08 | 2022-12-06 | 苏州创鑫激光科技有限公司 | Laser device and laser processing equipment |
| JP2023017174A (en) * | 2021-07-26 | 2023-02-07 | 三菱電線工業株式会社 | Optical fiber component cooling structure and optical connector structure including the same |
| CN115842279A (en) * | 2023-02-20 | 2023-03-24 | 光越科技(深圳)有限公司 | Integrated laser output head with efficient heat management |
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| CN115842279A (en) * | 2023-02-20 | 2023-03-24 | 光越科技(深圳)有限公司 | Integrated laser output head with efficient heat management |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109244804B (en) | 2020-06-09 |
| WO2020088265A1 (en) | 2020-05-07 |
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