CN109001872B - High-power output optical fiber coupling device - Google Patents
High-power output optical fiber coupling device Download PDFInfo
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- CN109001872B CN109001872B CN201810993733.8A CN201810993733A CN109001872B CN 109001872 B CN109001872 B CN 109001872B CN 201810993733 A CN201810993733 A CN 201810993733A CN 109001872 B CN109001872 B CN 109001872B
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- 238000010168 coupling process Methods 0.000 title claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 14
- 239000013307 optical fiber Substances 0.000 title abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 230000017525 heat dissipation Effects 0.000 claims abstract description 38
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000007664 blowing Methods 0.000 claims abstract description 3
- 230000005389 magnetism Effects 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
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- 230000007547 defect Effects 0.000 description 1
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- 238000001307 laser spectroscopy Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4266—Thermal aspects, temperature control or temperature monitoring
- G02B6/4268—Cooling
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
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Abstract
The invention relates to the application field of optical passive elements, in particular to a high-power output optical fiber coupling device, wherein during operation, laser is injected from the left side and passes through a lens to converge one point and is emitted from a right middle hole; the lens device is finely adjusted through the adjustment of the radial adjusting mechanism and the interaction of the three adjusting knobs, so that the focal point is adjusted to the optimal position through adjustment and is contacted with the end face of the optical fiber; meanwhile, the laser can generate heat, extrusion blowing of the air bag and rotation of the fan are completed through the heat dissipation mechanism, and cooling and heat dissipation are accelerated. The invention has simple operation and high adjustment efficiency, is convenient for the disassembly and replacement of parts and can automatically carry out heat dissipation and cooling, thereby achieving the beneficial effects of maximum self-protection of the device and the like.
Description
Technical Field
The invention relates to the field of application of optical passive elements, in particular to a high-power output optical fiber coupling device.
Background
In the late stage of the eighties of the twentieth century, with the maturity of the optical fiber manufacturing process and the development of the solid laser, the optical fiber laser starts to become a hot spot concerned by people, and with the gradual maturity of the double-clad optical fiber and the cladding pumping technology, the high-power optical fiber laser starts to make breakthrough progress. Because the fiber laser has the advantages of small volume, good compactness, convenient thermal management, good beam quality and the like, in recent years, the high-power fiber laser output by the optical fiber has been widely applied to the fields of optical communication, material processing, medical diagnosis and treatment, information storage, laser printing, laser measurement and control, laser spectroscopy, nonlinear frequency conversion and the like.
Some technical solutions related to high-power fiber lasers are also available in the prior art, for example, a patent high-power output fiber coupling device disclosed in application No. CN2015103343008, which mainly comprises a coupling lens, a lens focusing cylinder, a two-dimensional adjusting sleeve, an adjusting bracket, an adjusting knob, a locking knob, and an SMA-905 standard adapter sleeve. High-energy laser is emitted from a laser and is focused by a coupling lens, an adjusting knob on an adjusting frame is connected with a two-dimensional adjusting sleeve, the coupling lens is fixed on a lens focusing barrel by a pressing thread ring and is directly placed in the two-dimensional adjusting sleeve, the adjusting knob can adjust the up-down, left-right and front-back positions of the lens, the optimal position is adjusted to enable a focus to be just coincided with the end face of an optical fiber, the light is focused to the focus and is emitted to the end face, and the light can well enter the medical optical fiber because the end face is plated with an anti-reflection film, so that the light source and the medical optical.
The scheme has the problems of troublesome adjustment, long time consumption, heat dissipation, difficulty in disassembly and replacement of parts.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that the adjustment is troublesome and time-consuming, the heat dissipation cannot be solved, and the parts are difficult to disassemble and replace, the invention provides a technical scheme which can solve the problems.
The technical scheme adopted by the invention for solving the technical problems is as follows: a high-power output coupling device comprises a shell, a radial adjusting mechanism, a lens device, an axial adjusting mechanism and a heat dissipation mechanism; the shell is a revolving body, the middle of the shell is a cavity, the left side of the shell is provided with an opening, three rectangular grooves are uniformly distributed on the cylindrical side wall of the left side of the shell, the disassembly of the device is convenient, the upper wall and the lower wall of the middle of the shell are provided with circular grooves for installing a horizontal adjusting mechanism, and the cylindrical side wall of the cylindrical shell of the right side of the shell is uniformly provided with through holes for heat dissipation; the three radial adjusting mechanisms penetrate through the rectangular notches in the shell and are used for adjusting the radial position of the shell of the lens device, and meanwhile, the heat dissipation effect can be enhanced; the lens device is positioned among the three radial adjusting mechanisms and is used for condensing laser; the axial adjusting mechanism is positioned on the right side of the lens device and is in contact with the lens device, and the axial adjusting mechanism is positioned on the left side of the heat dissipation mechanism and is used for adjusting the axial position of the lens device; and the two heat dissipation mechanisms are positioned on the right side of the axial adjusting device in the shell and positioned on the upper inner wall and the lower inner wall of the shell and used for dissipating heat of the device. When the laser is operated, laser is emitted from the left side, passes through the lens to converge one point and is emitted from the right middle hole; the position of a laser gathering point is adjusted through the adjustment of a radial adjusting mechanism and the radial position of a lens device, so that the laser gathering point is opposite to a middle through hole on the right side of the shell; the light source which is aligned to the middle hole on the right side of the shell is converged more intensively by adjusting the axial adjusting mechanism and the axial position of the lens device; meanwhile, the laser can generate heat, and the cooling and heat dissipation are carried out through the operation of the heat dissipation mechanism.
Preferably, the radial adjusting mechanism comprises an adjusting knob, a sliding block and a contact plate; the adjusting knob is divided into a knob and a rotating shaft, threads are arranged on the rotating shaft, the adjusting knob penetrates through the shell and the sliding block and is fixedly connected with the contact plate, and the position of the contact plate is adjusted through the adjusting knob, so that the lens device is adjusted; the sliding block is a cuboid, a threaded hole is formed in the middle of the sliding block and is matched with the adjusting knob, the sliding block is installed in a rectangular groove in the shell and can move in the rectangular groove, and parts are replaced conveniently in disassembly of the device; the contact plate is in a circular arc shape and is in contact with the lens device, and the contact plate is in a circular arc shape, so that the contact area of the contact plate and the lens device is increased, and the lens device is prevented from being damaged due to overlarge pressure born by the lens device caused by small contact area in the adjusting process. During the operation, loosen three adjust knob simultaneously, through the adjustment to different knobs, adjust the focus point position behind the laser process lens device, when the focus point position was just to the shell right side through-hole behind the laser passed lens, screwed three knob simultaneously, accomplished the adjustment of laser focus point position.
Preferably, the lens device includes a lens mounting cylinder and a convex lens; the lens mounting cylinder is a revolving body and is used for fixing the convex lens and playing roles in protecting the convex lens and facilitating the position adjustment of the convex lens; the convex lens is arranged on the right side in the lens mounting cylinder and used for condensing laser.
Preferably, the axial adjusting mechanism comprises a moving ring, a worm wheel ring, a worm and an electromagnetic ring; the movable ring is a circular ring, the outer diameter of the movable ring is consistent with the inner diameter of the shell, the movable ring is in contact with the lens mounting cylinder, and a wedge block is arranged on the end face of the right side of the movable ring; the worm wheel ring is positioned on the right side of the movable circular ring, a wedge block consistent with the movable circular ring is arranged on the end face of the left side of the worm wheel ring, the movable circular ring is in contact with the worm wheel ring, and when the worm wheel ring rotates, the movable circular ring and the wedge block on the surface of the worm wheel ring move relatively to enable the movable circular ring to move axially; the two worms are positioned on the upper side and the lower side of the shell and are meshed with the worm gear ring, and the worm gear ring can rotate by rotating the worms; the electromagnetic ring is a circular ring and is positioned on the right side of the worm gear ring and is in contact with the worm gear ring, the outer diameter of the circular ring is consistent with that of the inner wall of the shell, the electromagnetic ring is fixed on the inner wall of the shell, the electromagnetic ring is electrified to generate magnetism, and the electromagnetic ring attracts the worm gear ring, the movable circular ring and the lens installation cylinder, so that the lens installation cylinder is tightly attached to the movable circular ring, the movable circular ring always moves along with the rotation axis of the worm gear ring under the action of magnetic force, and. After the radial adjusting mechanism adjusts the focus position, axial adjustment is carried out to ensure that the laser focus passing through the middle hole on the right side of the shell is in an optimal state, the worm is rotated to drive the worm gear ring to rotate, the movable circular ring and the worm gear ring generate relative movement under the action of the wedge block, the movable circular ring is always in contact with the worm gear ring under the action of the electromagnetic ring, the movable circular ring moves to drive the lens device to move radially, the purpose of adjusting the optimal focus is achieved, and the worm stops rotating when the optimal focus is found.
Preferably, the heat dissipation mechanism comprises an air bag, an electromagnet, a first electric contact, a second electric contact, a piston rod, a piston groove, a spring and a fan; the air bag is fixedly arranged on the left side of the electromagnet, the air bag is extruded and restored to generate gas, when the air bag is extruded, the air is blown into the shell to cool and dissipate heat, and the air bag is restored to suck air from the outside to supplement; the electromagnet is fixedly connected with the piston rod, and the electromagnet is electrified to generate magnetism and is attracted by the electromagnetic ring to move so as to extrude the air bag; the first electric contact is fixed on the right side of the electromagnet; the piston groove is a revolving body fixed on the upper side of the right side in the shell, and the inner diameter of the piston groove is consistent with the outer diameter of the piston end of the piston rod; the piston rod is arranged in the piston groove and can move horizontally; the spring is arranged between the piston rod and the piston groove; the second electric contact is fixed on the piston groove and is consistent with the first electric contact in height, when the first electric contact is in contact with the second electric contact, the electromagnet is electrified to generate magnetism, moves leftwards under the attraction of the electromagnetic ring to extrude the air bag, blows air and cools, moves the first electric contact to be disconnected with the second electric contact, loses magnetism, moves rightwards under the action of the spring until the electric contacts are contacted again, and the piston rod reciprocates in the piston groove to generate suction and exhaust for the rotation of the fan; the fan rotating shaft is provided with spiral threads and is installed in a thread groove in the inner wall of the right side of the shell, the piston rod and the piston groove reciprocate to produce suction and exhaust, the suction and exhaust gas enters the thread groove through the gas path, the fan is pushed to move left and right, and meanwhile, under the action of the threads, the fan rotates to accelerate the air flow in the shell and play a role in heat dissipation and cooling. When in operation, because the first electric contact is contacted with the second electric contact, the electromagnet is electrified to generate magnetic force which is attracted by the electromagnetic ring to move leftwards, the air bag is extruded between the electromagnet and the electromagnetic ring to blow air in the shell, thereby playing the role of heat dissipation and temperature reduction, because the electromagnet moves leftwards, the first electric contact is disconnected with the second electric contact, the electromagnet is powered off and loses magnetism, the piston rod moves rightwards under the elastic force of the spring to drive the electromagnet to move rightwards, when the first electric contact contacts with the second electric contact again, the electromagnet is electrified to move leftwards again, so as to reciprocate, and the piston rod also reciprocates in the piston groove to generate compressed gas for the fan, under gaseous promotion, because the rotation axis is equipped with the spiral line and the screw thread groove cooperation, produces rotatoryly, the fan carries out reciprocating rotation under the reciprocating motion of piston rod, plays to accelerate the radiating effect of air flow.
Preferably, the friction force between the right end face of the lens mounting cylinder and the moving cylinder is greater than the gravity force between the lens mounting cylinder and the convex lens; the surfaces of the worm gear ring and the electromagnetic ring need to be smooth, and the rotation of the worm gear ring cannot be influenced.
Therefore, the invention has the following beneficial effects:
1. according to the invention, the focal point position is adjusted through the radial adjusting mechanism, the three adjusting knobs are simultaneously loosened, the position of the focal point of laser passing through the lens device is adjusted through adjusting different knobs, when the position of the focal point of the laser passing through the lens is opposite to the through hole on the right side of the shell, the three knobs are simultaneously screwed, and the position adjustment of the laser focal point is completed, so that the operation is convenient and simple;
2. the invention carries out axial adjustment through the axial adjusting mechanism, ensures that the laser focusing focus passing through the middle hole on the right side of the shell is in the optimal state, drives the worm gear ring to rotate through rotating the worm, moves the circular ring and the worm gear ring to generate relative movement under the action of the wedge block, always contacts with the worm gear ring under the action of the electromagnetic ring, moves the circular ring to drive the lens device to move radially, achieves the purpose of adjusting the optimal focus, and finishes fine adjustment of focusing by utilizing the characteristics of the worm gear mechanism when the optimal focus is found out and the worm stops rotating the worm, thereby improving the working efficiency;
3. the invention carries out heat dissipation in the device by adding the heat dissipation mechanism, because the first electric contact is contacted with the second electric contact, the electromagnet is electrified to generate magnetic force and is attracted by the electromagnetic ring to move leftwards, the air bag is extruded between the electromagnet and the electromagnetic ring to blow air in the shell, thereby playing the role of heat dissipation and temperature reduction, because the electromagnet moves leftwards, the first electric contact is disconnected with the second electric contact, the electromagnet is powered off and loses magnetism, the piston rod moves rightwards under the spring elasticity to drive the electromagnet to move rightwards, when the first electric contact is contacted with the second electric contact again, the electromagnet is electrified to move leftwards again, the reciprocating movement is carried out, the piston rod also carries out reciprocating movement in the piston groove to generate compressed gas for the fan, under the push of the gas, because the rotating shaft is provided with spiral threads to be matched with the thread groove to generate rotation, the fan is under the reciprocating movement of, the reciprocating rotation is carried out, so that the effect of accelerating the air flow and heat dissipation is achieved;
4. according to the invention, the radial adjustment and the axial adjustment of the lens are separated into two parts for adjustment, so that the focusing and the adjusting position can be separated by personnel in operation, no influence is caused between the two parts, and the adjustment is convenient and quick; meanwhile, when the electromagnetic ring is powered off, the magnetism disappears, the movable circular ring, the worm wheel ring and the lens device lose the magnetic force effect, and can be easily taken down along the direction of the rectangular groove, so that parts are easy to replace.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a front view of the shift ring;
in the figure: the lens device comprises a shell 1, a radial adjusting mechanism 2, a lens device 3, an axial adjusting mechanism 4, a heat dissipation mechanism 5, an adjusting knob 21, a sliding block 22, a contact plate 23, a lens mounting cylinder 31, a convex lens 32, a moving circular ring 41, a worm gear ring 42, a worm 43, an electromagnetic ring 44, an air bag 51, an electromagnet 52, a first electric contact 53, a second electric contact 54, a piston rod 55, a piston groove 56, a spring 57 and a fan 58.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present invention provides a high power output coupling device, which includes a housing 1, a radial adjusting mechanism 2, a lens device 3, an axial adjusting mechanism 4, and a heat dissipating mechanism 5; the shell 1 is a revolving body, the middle of the shell is a cavity, the left side of the shell is provided with an opening, three rectangular grooves are uniformly distributed on the cylindrical side wall on the left side of the shell 1, so that the device is convenient to disassemble, circular grooves are formed in the upper wall and the lower wall of the middle of the shell 1 and used for mounting a horizontal adjusting mechanism, and through holes are uniformly formed in the cylindrical side wall of the cylindrical shell 1 on the right side of the shell 1 and used for heat; the three radial adjusting mechanisms 2 penetrate through the rectangular notches in the shell 1 and are used for adjusting the radial position of the shell 1 of the lens device 3 and enhancing the heat dissipation effect; the lens device 3 is positioned between the three radial adjusting mechanisms 2 and is used for condensing laser; the axial adjusting mechanism 4 is positioned on the right side of the lens device 3 and is in contact with the lens device 3, and the axial adjusting mechanism 4 is positioned on the left side of the heat dissipation mechanism 5 and is used for adjusting the axial position of the lens device 3; the two heat dissipation mechanisms 5 are located on the right side of the axial adjusting device in the shell 1 and located on the upper inner wall and the lower inner wall of the shell 1 and used for dissipating heat of the device. When the laser is operated, laser is emitted from the left side, passes through the lens to converge one point and is emitted from the right middle hole; the position of a laser gathering point is adjusted through the adjustment of the radial adjusting mechanism 2 and the radial position of the lens device 3, so that the laser gathering point is opposite to a middle through hole on the right side of the shell 1; the light source which is aligned to the middle hole at the right side of the shell 1 is converged more intensively by adjusting the axial position of the axial adjusting mechanism 4 and the lens device 3; meanwhile, the laser generates heat, and the cooling and heat dissipation are carried out through the operation of the heat dissipation mechanism 5.
As an embodiment of the present invention, the radial adjusting mechanism 2 includes an adjusting knob 21, a slider 22, and a contact plate 23; the adjusting knob 21 is divided into a knob and a rotating shaft, threads are arranged on the rotating shaft, the adjusting knob 21 penetrates through the shell 1 and the sliding block 22 and is fixedly connected with the contact plate 23, and the position of the contact plate 23 is adjusted through the adjusting knob 21, so that the lens device 3 is adjusted; the sliding block 22 is a cuboid, a threaded hole is formed in the middle of the sliding block and is matched with the adjusting knob 21, the sliding block 22 is installed in a rectangular groove in the shell 1 and can move in the rectangular groove, and parts are replaced conveniently in the device; the contact plate 23 is arc-shaped to contact the lens device 3, and the contact plate 23 is arc-shaped to increase the contact area with the lens device 3, so as to prevent the lens device 3 from being damaged due to excessive pressure applied thereto during adjustment process caused by small contact area. During operation, the three adjusting knobs 21 are simultaneously loosened, the focusing point position of laser passing through the lens device 3 is adjusted by adjusting the different knobs, and when the focusing point position of the laser passing through the lens is just opposite to the through hole on the right side of the shell 1, the three knobs are simultaneously screwed, so that the position adjustment of the laser focusing point is completed.
In one embodiment of the present invention, the lens unit 3 includes a lens mounting cylinder 31 and a convex lens 32; the lens mounting cylinder 31 is a revolving body, is used for fixing the convex lens 32, and plays roles of protecting the convex lens 32 and facilitating the position adjustment of the convex lens 32; the convex lens 32 is installed at the right side inside the lens installation cylinder 31 for condensing the laser light.
As an embodiment of the present invention, the axial adjustment mechanism 4 includes a moving ring 41, a worm gear 42, a worm 43, and an electromagnetic ring 44; the movable circular ring 41 is a circular ring, the outer diameter of the movable circular ring is consistent with the inner diameter of the shell 1, the movable circular ring 41 is in contact with the lens installation cylinder 31, and a wedge block is arranged on the end face of the right side of the movable circular ring 41; the worm gear ring 42 is positioned at the right side of the movable circular ring 41, the left end face of the worm gear ring 42 is provided with a wedge consistent with the movable circular ring 41, the movable circular ring 41 is in contact with the worm gear ring 42, and when the worm gear ring 42 rotates, the wedge on the surfaces of the movable circular ring 41 and the worm gear ring 42 relatively moves to enable the movable circular ring 41 to axially move; the two worms 43 are positioned on the upper side and the lower side of the shell 1 and are meshed with the worm gear ring 42, and the worm gear ring 42 can rotate by rotating the worms 43; the electromagnetic ring 44 is a circular ring which is positioned at the right side of the worm gear ring 42 and is in contact with the worm gear ring 42, the outer diameter of the electromagnetic ring 44 is consistent with the inner wall of the shell 1, the electromagnetic ring 44 is fixed on the inner wall of the shell 1, the electromagnetic ring 44 is electrified to generate magnetism, and the electromagnetic ring attracts the worm gear ring 42, the movable circular ring 41 and the lens installation cylinder 31, so that the lens installation cylinder 31 is tightly attached to the movable circular ring 41, the movable circular ring 41 always rotates along with the worm gear ring 42 to move axially under the action of magnetic force, and the worm gear ring 42 is tightly attached. After the radial adjusting mechanism 2 finishes adjusting the focus position, axial adjustment is performed to ensure that the focus of the laser passing through the middle hole on the right side of the housing 1 is in an optimal state, the worm 43 is rotated to drive the worm gear ring 42 to rotate, the movable ring 41 and the worm gear ring 42 generate relative movement under the action of the wedge block, the movable ring 41 is always in contact with the worm gear ring 42 under the action of the electromagnetic ring 44, the movable ring 41 moves to drive the lens device 3 to move radially, the purpose of adjusting the optimal focus is achieved, and the worm 43 is stopped rotating when the optimal focus is found.
As an embodiment of the present invention, the heat dissipation mechanism 5 includes an air bag 51, an electromagnet 52, a first electrical contact 53, a second electrical contact 54, a piston rod 55, a piston groove 56, a spring 57, and a fan 58; the air bag 51 is fixedly arranged on the left side of the electromagnet 52, the air bag 51 is extruded and restored to generate gas, when the air bag 51 is extruded, the interior of the shell 1 is blown to cool and dissipate heat, and the air bag 51 is restored to suck air from the outside to supplement; the electromagnet 52 is fixedly connected with the piston rod 55, and the electromagnet 52 is electrified to generate magnetism and is attracted by the electromagnetic ring 44 to move so as to extrude the air bag 51; the first electric contact 53 is fixed on the right side of the electromagnet 52; the piston groove 56 is a revolving body fixed on the upper side of the right side in the shell 1, and the inner diameter of the piston groove 56 is consistent with the outer diameter of the piston end of the piston rod 55; the piston rod 55 is mounted in a piston groove 56 to be horizontally movable; the spring 57 is installed between the piston rod 55 and the piston groove 56; the second electric contact 54 is fixed on the piston groove 56 and has the same height with the first electric contact 53, when the first electric contact 53 is contacted with the second electric contact 54, the electromagnet 52 is electrified to generate magnetism, the electromagnet moves leftwards under the attraction of the electromagnetic ring 44 to squeeze the air bag 51 for air blowing and cooling, the electromagnet 52 moves the first electric contact 53 to be disconnected with the second electric contact 54, the electromagnet 52 loses magnetism and moves rightwards under the action of the spring 57 until the electric contacts are contacted again, and the piston rod 55 reciprocates in the piston groove 56 to generate air suction and exhaust for the rotation of the fan 58; the rotation shaft of the fan 58 is provided with spiral threads and is arranged in a thread groove on the inner wall of the right side of the shell 1, the piston rod 55 and the piston groove 56 perform reciprocating motion to generate air suction and exhaust, the air suction and exhaust enters the thread groove through an air path, the fan 58 is pushed to move left and right, and simultaneously, the fan 58 rotates under the action of the threads, so that the air in the shell 1 flows, and the heat dissipation and cooling effects are achieved. When the air bag type air cooler is in operation, the first electric contact 53 is in contact with the second electric contact 54, the electromagnet 52 is electrified to generate magnetic force and is attracted by the electromagnetic ring 44 to move leftwards, the air bag 51 is squeezed between the electromagnet 52 and the electromagnetic ring 44 to blow air into the shell 1, so that the heat dissipation and temperature reduction effects are achieved, the first electric contact 53 is disconnected with the second electric contact 54 as the electromagnet 52 moves leftwards, the electromagnet 52 is powered off and loses magnetism, the piston rod 55 moves rightwards under the elasticity of the spring 57 to drive the electromagnet 52 to move rightwards, when the first electric contact 53 is in contact with the second electric contact 54 again, the electromagnet 52 is electrified to move leftwards again, so that reciprocating movement is achieved, the piston rod 55 also performs reciprocating movement in the piston groove 56 to generate compressed air for the fan 58, under the pushing of the air, the spiral thread is matched with the thread groove to generate rotation, and the fan 58 performs reciprocating movement under the reciprocating, the reciprocating rotation is carried out, and the effect of accelerating the air flow and heat dissipation is achieved.
As an embodiment of the present invention, the friction force between the right end surface of the lens mounting cylinder 31 and the moving cylinder is larger than the gravity force between the lens mounting cylinder 31 and the convex lens 32; the surfaces of the worm gear ring 42 and the electromagnetic ring 44 need to be smooth, so that the rotation of the worm gear ring 42 cannot be influenced.
When the laser is operated, laser is emitted from the left side, passes through the lens to converge one point and is emitted from the right middle hole; the radial adjusting mechanism 2 is used for adjusting, the three adjusting knobs 21 are simultaneously loosened, the three knobs are simultaneously screwed when the focusing point position of the laser passing through the lens device 3 is adjusted through adjusting different knobs, and the focusing point position of the laser passing through the lens is opposite to the through hole at the right side of the shell 1, so that the position adjustment of the focusing point of the laser is completed, and the laser is opposite to the through hole at the middle of the right side of the shell 1; after the radial adjusting mechanism 2 finishes adjusting the focus position, axial adjustment is performed to ensure that the focus of the laser passing through the middle hole on the right side of the housing 1 is in an optimal state, the worm 43 is rotated to drive the worm gear ring 42 to rotate, the movable ring 41 and the worm gear ring 42 generate relative movement under the action of the wedge block, the movable ring 41 is always in contact with the worm gear ring 42 under the action of the electromagnetic ring 44, the movable ring 41 moves to drive the lens device 3 to move radially, the purpose of adjusting the optimal focus is achieved, and the worm 43 is stopped rotating when the optimal focus is found. Meanwhile, the laser generates heat, through the operation of the heat dissipation mechanism 5, because the first electric contact 53 is contacted with the second electric contact 54, the electromagnet 52 is electrified to generate magnetic force, the electromagnet is attracted by the electromagnetic ring 44 to move leftwards, the air bag 51 is squeezed between the electromagnet 52 and the electromagnetic ring 44 to blow air into the shell 1, so as to play a role in heat dissipation and temperature reduction, because the electromagnet 52 moves leftwards, the first electric contact 53 is disconnected with the second electric contact 54, the electromagnet 52 is powered off and loses magnetism, the piston rod 55 moves rightwards under the elasticity of the spring 57 to drive the electromagnet 52 to move rightwards, when the first electric contact 53 is contacted with the second electric contact 54 again, the electromagnet 52 is electrified to move leftwards again, so as to move in a reciprocating manner, the piston rod 55 also moves in a reciprocating manner in the piston groove 56 to generate compressed gas for the fan 58, and because the rotating shaft is provided with spiral threads matched with the thread, the fan 58 is rotated to reciprocate by the reciprocating motion of the piston rod 55, and the air flow is accelerated to dissipate heat.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A high power output fiber optic coupling device, comprising: comprises a shell (1), a radial adjusting mechanism (2), a lens device (3), an axial adjusting mechanism (4) and a heat dissipation mechanism (5); the shell (1) is a revolving body, the middle of the shell is a cavity, the left side of the shell is provided with an opening, three rectangular grooves are uniformly distributed on the cylindrical side wall on the left side of the shell (1) to facilitate the disassembly of the device, circular grooves are formed in the upper wall and the lower wall of the middle of the shell (1) and used for installing a horizontal adjusting mechanism, and through holes are uniformly formed in the cylindrical side wall of the cylindrical shell (1) on the right side of the shell (1) and used for heat dissipation; the three radial adjusting mechanisms (2) penetrate through the rectangular notches in the shell (1) and are used for adjusting the radial position of the shell (1) of the lens device (3) and enhancing the heat dissipation effect; the lens device (3) is positioned between the three radial adjusting mechanisms (2) and is used for condensing laser; the axial adjusting mechanism (4) is positioned on the right side of the lens device (3) and is in contact with the lens device (3), and the axial adjusting mechanism (4) is positioned on the left side of the heat dissipation mechanism (5) and is used for adjusting the axial position of the lens device (3); the two heat dissipation mechanisms (5) are positioned on the right side of the axial adjusting device in the shell (1), positioned on the upper inner wall and the lower inner wall of the shell (1) and used for dissipating heat of the device;
the lens device (3) comprises a lens mounting cylinder (31) and a convex lens (32); the lens mounting cylinder (31) is a revolving body and is used for fixing the convex lens (32) and playing a role in protecting the convex lens (32) and facilitating the adjustment of the position of the convex lens (32); the convex lens (32) is arranged on the right side in the lens mounting cylinder (31) and is used for condensing laser;
the axial adjusting mechanism (4) comprises a moving circular ring (41), a worm gear ring (42), a worm (43) and an electromagnetic ring (44); the movable circular ring (41) is a circular ring, the outer diameter of the movable circular ring is consistent with the inner diameter of the shell (1), the movable circular ring (41) is in contact with the lens mounting cylinder (31), and a wedge block is arranged on the end face of the right side of the movable circular ring (41); the worm gear ring (42) is positioned on the right side of the movable circular ring (41), a wedge block consistent with the movable circular ring (41) is arranged on the left end face of the worm gear ring (42), the movable circular ring (41) is in contact with the worm gear ring (42), when the worm gear ring (42) rotates, the wedge blocks on the surfaces of the movable circular ring (41) and the worm gear ring (42) relatively move, and the movable circular ring (41) axially moves; the two worms (43) are positioned on the upper side and the lower side of the shell (1) and are meshed with the worm gear ring (42), and the worm gear ring (42) can rotate by rotating the worms (43); the electromagnetic ring (44) is a circular ring and is positioned on the right side of the worm gear ring (42) to be in contact with the worm gear ring (42), the outer diameter of the circular ring is consistent with that of the inner wall of the shell (1), the electromagnetic ring (44) is fixed on the inner wall of the shell (1), the electromagnetic ring (44) is electrified to generate magnetism, the magnetic ring attracts the worm gear ring (42), the movable circular ring (41) and the lens installation cylinder (31), therefore, the lens installation cylinder (31) is tightly attached to the movable circular ring (41), the movable circular ring (41) always moves along with the rotation axial direction of the worm gear ring (42) under the action of magnetic force, and the worm gear ring (42) is tightly attached to the electromagnetic ring (.
2. A high power output fiber coupling device according to claim 1, wherein: the radial adjusting mechanism (2) comprises an adjusting knob (21), a sliding block (22) and a contact plate (23); the adjusting knob (21) is divided into a knob and a rotating shaft, threads are arranged on the rotating shaft, the adjusting knob (21) penetrates through the shell (1) and the sliding block (22) and is fixedly connected with the contact plate (23), and the position of the contact plate (23) is adjusted through the adjusting knob (21), so that the lens device (3) is adjusted; the sliding block (22) is a cuboid, a threaded hole is formed in the middle of the sliding block and is matched with the adjusting knob (21), the sliding block (22) is installed in a rectangular groove in the shell (1) and can move in the rectangular groove, and parts are replaced conveniently in disassembly of the device; the contact plate (23) is in a circular arc shape and is in contact with the lens device (3), the contact plate (23) is in a circular arc shape, the contact area of the contact plate (23) and the lens device (3) is increased, and the lens device (3) is prevented from being damaged due to overlarge pressure caused by small contact area in the adjusting process.
3. A high power output fiber coupling device according to claim 1, wherein: the heat dissipation mechanism (5) comprises an air bag (51), an electromagnet (52), a first electric contact (53), a second electric contact (54), a piston rod (55), a piston groove (56), a spring (57) and a fan (58); the air bag (51) is fixedly arranged on the left side of the electromagnet (52), the air bag (51) is extruded and restored to generate gas, when the air bag (51) is extruded, the air is blown into the shell (1) to cool and dissipate heat, and the air bag (51) is restored to suck air from the outside to supplement; the electromagnet (52) is fixedly connected with the piston rod (55), and the electromagnet (52) is electrified to generate magnetism and is attracted by the electromagnetic ring (44) to move so as to extrude the air bag (51); the first electric contact (53) is fixed on the right side of the electromagnet (52); the piston groove (56) is a revolving body fixed on the upper side of the right side in the shell (1), and the inner diameter of the piston groove (56) is consistent with the outer diameter of the piston end of the piston rod (55); the piston rod (55) is arranged in the piston groove (56) and can move horizontally; the spring (57) is arranged between the piston rod (55) and the piston groove (56); the second electric contact (54) is fixed on the piston groove (56) and is consistent with the first electric contact (53) in height, when the first electric contact (53) is in contact with the second electric contact (54), the electromagnet (52) is electrified to generate magnetism, the electromagnet (52) moves to the left under the attraction of the electromagnetic ring (44) to squeeze the air bag (51) for air blowing and cooling, the electromagnet (52) moves the first electric contact (53) to be disconnected with the second electric contact (54), the electromagnet (52) loses magnetism, the spring (57) acts on the right movement until the electric contacts are contacted again, the piston rod (55) reciprocates in the piston groove (56) to generate air suction and exhaust, and the air suction and exhaust are used for rotating the fan (58); the fan (58) is provided with spiral threads on a rotating shaft and is installed in a thread groove on the inner wall of the right side of the shell (1), the piston rod (55) and the piston groove (56) perform reciprocating motion to generate air suction and exhaust, the air channel enters the thread groove, the fan (58) is pushed to move left and right, and meanwhile, under the action of the threads, the fan (58) rotates to accelerate the flow of air inside the shell (1) and play a role in heat dissipation and cooling.
4. A high power output fiber coupling device according to claim 1, wherein: the friction force between the right end surface of the lens mounting cylinder (31) and the moving cylinder is greater than the gravity of the lens mounting cylinder (31) and the convex lens (32); the surfaces of the worm gear ring (42) and the electromagnetic ring (44) need to be smooth, so that the rotation of the worm gear ring (42) cannot be influenced.
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| CN201810993733.8A CN109001872B (en) | 2018-08-29 | 2018-08-29 | High-power output optical fiber coupling device |
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| CN110045469B (en) * | 2019-04-02 | 2020-08-18 | 金信诺光纤光缆（赣州）有限公司 | Optical fiber connecting device for optical fiber distribution box |
| CN112433308A (en) * | 2020-12-07 | 2021-03-02 | 中山新诺科技股份有限公司 | Optical fiber coupling adjusting device of high-power laser beam |
| CN113219593B (en) * | 2021-05-06 | 2022-10-21 | 深圳市中葛科技有限公司 | Optical fiber coupler |
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| CN114352975B (en) * | 2021-12-14 | 2023-06-06 | 光筑梦(上海)技术有限公司 | Low-attenuation LED illuminating lamp |
| CN114325969B (en) * | 2022-01-06 | 2024-01-26 | 安徽理工大学 | Optical fiber communication protection assembly |
| CN114670306B (en) * | 2022-04-20 | 2022-09-27 | 佛山豪德数控机械有限公司 | Intelligent laser edge bonding machine |
| CN117503335B (en) * | 2023-12-06 | 2024-06-04 | 南京沃福曼医疗科技有限公司 | Optical coupling laser ablation system |
| CN118371838B (en) * | 2024-06-25 | 2024-10-08 | 吉林大学 | Resistance spot welding pliers with current and working pressure monitoring function |
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| CN102798944A (en) * | 2012-07-27 | 2012-11-28 | 北京国科世纪激光技术有限公司 | Optical fiber coupling device of fiber laser |
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| JP2004082166A (en) * | 2002-08-27 | 2004-03-18 | Matsushita Electric Ind Co Ltd | Laser emitting barrel for optical fiber |
| CN101750678A (en) * | 2008-12-17 | 2010-06-23 | 无锡浩波光电子有限公司 | High-power output fiber coupling device |
| CN102081199A (en) * | 2010-12-17 | 2011-06-01 | 扬州科莱斯激光技术有限公司 | Fiber coupling device of high-power semiconductor laser |
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| CN102798944A (en) * | 2012-07-27 | 2012-11-28 | 北京国科世纪激光技术有限公司 | Optical fiber coupling device of fiber laser |
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Effective date of registration: 20200804 Address after: Pine Road 518000 in Guangdong province Shenzhen City Pingshan New District Industrial Zone No. 56 Woori technology industrial area B building 4 floor Applicant after: PENGDA OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 210024 Hehai University, No. 1 Xikang Road, Nanjing, Jiangsu Province Applicant before: Li Han |
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Inventor after: Qian Fuqi Inventor after: Shu Xiong Inventor after: Xu Yuan Inventor after: Fang Fulin Inventor after: Li Han Inventor before: Li Han |
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Denomination of invention: A high-power output fiber optic coupling device Granted publication date: 20200915 Pledgee: Bank of Shanghai Limited by Share Ltd. Shenzhen branch Pledgor: PENGDA OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2024980004529 |