CN111266727B - Ultrahigh-power laser space beam combining module and control system thereof - Google Patents
Ultrahigh-power laser space beam combining module and control system thereof Download PDFInfo
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- CN111266727B CN111266727B CN202010275351.9A CN202010275351A CN111266727B CN 111266727 B CN111266727 B CN 111266727B CN 202010275351 A CN202010275351 A CN 202010275351A CN 111266727 B CN111266727 B CN 111266727B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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Abstract
The invention relates to an ultrahigh-power laser space beam combination module and a control system thereof, and the ultrahigh-power laser space beam combination module comprises a plurality of lasers and a light path adjusting module, wherein the light path adjusting module comprises a first beam expander, a first collimating lens, a second beam expander, a second collimating lens and a motor, laser beams emitted by the plurality of lasers sequentially pass through the first beam expander, the first collimating lens, the second beam expander and the second collimating lens and then are converged at one point in a space beam combination mode, the ultrahigh-power laser space beam combination module also comprises an angle rotation control module and a numerical control system, and the numerical control system is used for controlling the angle rotation control module to be linked with the light path adjusting module, so that the laser beams emitted by the plurality of lasers are converged at one point in a space beam combination mode. According to the ultrahigh-power laser space beam combining module and the control system thereof, the application range of laser beam combination is widened by arranging the first beam expanding lens, the first collimating lens, the second beam expanding lens and the second collimating lens.
Description
Technical Field
The invention relates to the field of laser, in particular to an ultrahigh-power laser space beam combining module and a control system thereof.
Background
The existing traditional high-power laser system in China at present mainly has the following defects: (1) the total output power is low, the single pulse energy is low, and the laser application is restricted; (2) the mode difference of the high-power multimode laser beam restricts the improvement of the laser power; (3) the laser beam energy is attenuated too much at long range output resulting in limited total power density at long range transmission.
And the rotating device matched with the laser beam has slow response, the position cannot be compared and confirmed in real time, and the precision often cannot meet the requirement.
In the existing laser beam combining device, only one group of beam expanding lenses and one group of collimating lenses are used for combining laser beams, and after a motor driving the collimating lenses to axially move breaks down, the whole system is paralyzed.
Disclosure of Invention
In view of the above, there is a need for an ultra-high power laser spatial beam combining module which can output laser light remotely and continue to operate after a part of motors fail.
In view of the above, it is desirable to provide an ultra-high power laser spatial beam combining control system with higher precision and real-time response.
The utility model provides a super powerful laser space closes a bundle module, including a plurality of lasers and light path adjusting module, light path adjusting module includes first beam expanding lens, first collimating mirror, second beam expanding lens and second collimating mirror and motor, first beam expanding lens, first collimating mirror, second beam expanding lens and second collimating mirror are coaxial setting in proper order, a plurality of lasers set up in first beam expanding lens one side, the laser beam that a plurality of lasers emitted loops through first beam expanding lens, first collimating mirror, converge in a little with the mode that the space closed bundle behind second beam expanding lens and the second collimating mirror.
The motor includes a set of linear motor, and linear motor connects first beam expander, moves in laser beam transmitting direction through controlling linear motor drive first beam expander for the laser beam that the laser instrument sent assembles in a point with the space mode of restrainting, can realize through following mode:
the first collimating lens, the second beam expanding lens and the second collimating lens are fixed, and the first beam expanding lens is driven by a motor to realize the spatial focal length adjustment of the laser beam.
The motor includes a set of linear motor, and linear motor connects first collimating mirror, moves in laser beam emission direction through controlling first collimating mirror of linear motor drive for the laser beam that the laser instrument sent assembles in a point with the space beam combination mode, can realize through following mode:
the first beam expander, the second beam expander and the second collimating lens are fixed, and the first collimating lens is driven by a motor to realize the spatial focal length adjustment of the laser beam.
The motor includes a set of linear motor, and linear motor connects the second beam expander, moves in laser beam transmitting direction through controlling linear motor drive second beam expander for the laser beam that the laser instrument sent assembles in a point with the space mode of restrainting, can realize through following mode:
the first beam expander, the first collimating lens and the second collimating lens are fixed, and the second beam expander is driven by a motor to realize the spatial focal length adjustment of the laser beam.
The motor includes a set of linear motor, and linear motor connects the second collimating mirror, moves in laser beam emission direction through controlling linear motor drive second collimating mirror for the laser beam that the laser instrument sent assembles in a little with the space beam combination mode, can realize through following mode:
the first beam expander, the second beam expander and the first collimating lens are fixed, and the second collimating lens is driven by a motor to realize the spatial focal length adjustment of the laser beam.
The utility model provides a super powerful laser space closes a bundle control system, the laser space closes a bundle module, still include angular rotation control module and numerical control system, the laser space closes a bundle module and sets up on angular rotation control module, numerical control system is connected to the motor, angular rotation control module is used for closing the angle and the distance of a bundle laser that the bundle module produced to the laser space and controls, numerical control system is used for controlling angular rotation control module and light path adjusting module linkage, make the laser beam that a plurality of lasers sent close a bundle mode with the space and assemble in a bit.
The angle rotation control module comprises a rotating platform and an angle swinging head, the angle swinging head is arranged on the rotating platform, the rotating platform is used for driving the angle swinging head to rotate on the horizontal plane, a laser space beam combining module is arranged on the angle swinging head, and the angle swinging head is used for controlling the laser space beam combining module to rotate in the vertical plane.
The revolving stage includes first mounting platform, a rotating electrical machines, first angle measurement subassembly and chassis, a rotating electrical machines sets up on the chassis, a rotating electrical machines's output shaft end is connected at a mounting platform's center, the first angle measurement subassembly of angle is used for increasing a mounting platform's rotational stability, first angle measurement subassembly is used for measuring a mounting platform rotation angle, numerical control system is connected to first angle measurement subassembly, numerical control system is used for handling the data of first angle measurement subassembly transmission and controls a mounting platform's rotation angle.
The angle yaw includes two sets of backup pads that the subtend set up, second rotating electrical machines and second mounting platform, two sets of backup pads that the subtend set up are with the vertical face symmetry setting in diameter place of first mounting platform, the second rotating electrical machines sets up in a set of backup pad, the second rotating electrical machines output sets up the connecting axle, the connecting axle deviates from on the second rotating electrical machines one end passes through bearing rotatable coupling in another set of backup pad, the second mounting platform sets up on the connecting axle, the second rotating electrical machines passes through the drive connecting axle and rotates, and then control second mounting platform rotates.
The bottom of the second mounting platform is provided with a second angle measurement component, the second angle measurement component is used for measuring the rotation angle of the second mounting platform and is connected with a numerical control system, and the numerical control system is used for processing the data transmitted by the second angle measurement component to control the rotation angle of the second mounting platform.
According to the ultrahigh-power laser space beam combination module and the control system thereof, the first beam expander, the first collimating lens, the second beam expander and the second collimating lens are arranged, so that the laser can be output remotely, and the system can still work after a part of motors driving the first beam expander, the first collimating lens, the second beam expander and the second collimating lens are in failure, so that the application range of laser beam combination is expanded; the real-time rotation angle data of the rotating table and the angle swing head are captured by arranging the grating ruler on the rotating table and the angle swing head, and the rotating table and the angle swing head are adjusted in real time, so that the corresponding time is shorter and more accurate.
Drawings
FIG. 1 is a schematic structural diagram of an ultra-high power laser spatial beam combining control system according to the present invention;
FIG. 2 is another schematic diagram of the spatial beam combining control system of the ultra-high power laser of the present invention;
FIG. 3 is a schematic diagram of the laser action of the initialized optical path adjustment module of the present invention;
FIG. 4 is a schematic diagram illustrating the principle of the present invention that laser beam acts on the optical path adjusting module when the movable first beam expander, the fixed first collimating lens, the fixed second beam expander and the fixed second collimating lens are used;
FIG. 5 is a schematic diagram illustrating the principle of the present invention that laser beam acts on the optical path adjusting module when the movable first collimating lens, the fixed first beam expander, the fixed second beam expander and the fixed second collimating lens are used;
FIG. 6 is a schematic diagram illustrating the principle of the present invention that laser beam acts on the optical path adjusting module when a movable second beam expander is used and a fixed first collimating lens, a fixed first beam expander and a fixed second collimating lens are used;
fig. 7 is a schematic diagram illustrating the principle of the present invention that laser acts on the optical path adjusting module when a movable second collimator lens, a fixed first beam expander lens, and a fixed second beam expander lens are used.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following describes the ultrahigh power laser spatial beam combining module and the control system thereof in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 3-7, the spatial beam combining module for ultrahigh power laser of the present invention includes a plurality of lasers and a light path adjusting module, where the light path adjusting module includes a first beam expander 400, a first collimating lens 500, a second beam expander 600, a second collimating lens 700, and a motor, the first beam expander 400, the first collimating lens 500, the second beam expander 600, and the second collimating lens 700 are coaxially disposed in sequence, the plurality of lasers are disposed on one side of the first beam expander 400, and laser beams emitted by the plurality of lasers sequentially pass through the first beam expander 400, the first collimating lens 500, the second beam expander 600, and the second collimating lens 700 and then are converged at one point in a spatial beam combining manner.
In the above embodiments, the laser is the energy core of the laser spatial beam combining module, and the laser is preferably a single mode fiber laser. More preferably, the plurality of lasers are a combination of a plurality of high power single mode fiber lasers. The light beams of the lasers are sequentially output through the light path adjusting module composed of the first beam expander 400, the first collimating lens 500, the second beam expander 600 and the second collimating lens 700, the number of the lasers can be hundreds, thousands or even tens of thousands, and the laser can be implemented in practical application. Therefore, the problem that laser beams of a plurality of high-power single-mode fiber lasers are difficult to couple is avoided, and the technical constraint of the development of an ultrahigh-power laser system is relieved.
In the above embodiments, the optical path adjusting module is an optical path element of the module, and is responsible for outputting the laser beam and performing spatial beam combining and focusing of the laser beam of the module.
In the above embodiment, the numerical control system may be controlled by the upper computer, and receive an instruction sent by the upper computer, and control the above embodiment to realize tracking irradiation on the target.
In one embodiment, the optical path adjusting module includes two reflective mirrors, the two reflective mirrors are disposed on a side of the second collimating mirror 700 facing away from the laser, and the reflective mirrors are used for changing a position of the spatial beam combining focus.
The motor includes a set of linear motor, and linear motor connects first beam expander 400, moves in laser beam transmitting direction through controlling linear motor drive first beam expander 400 for the laser beam that the laser instrument sent assembles in a point with the space mode of restrainting, can realize through following mode:
the first collimating lens 500, the second beam expander 600 and the second collimating lens 700 are fixed, and the first beam expander 400 is driven by a motor to realize spatial focal length adjustment of the laser beam.
In another embodiment, the motor includes a set of linear motors, the linear motors are connected to the first collimating mirror 500, and the first collimating mirror 500 is driven to move in the laser beam emitting direction by controlling the linear motors, so that the laser beams emitted by the laser converge at one point in a spatial beam combining manner, which can be implemented in the following manners:
the first beam expander 400, the second beam expander 600 and the second collimator 700 are fixed, and the first collimator 500 is driven by a motor to realize spatial focal length adjustment of laser beams.
In another embodiment, the motor includes a set of linear motors, the linear motors are connected to the second beam expander 600, and the linear motors are controlled to drive the second beam expander 600 to move in the laser beam emitting direction, so that the laser beams emitted by the laser converge at one point in a spatial beam combination manner, which can be implemented in the following manners:
the first beam expander 400, the first collimating lens 500 and the second collimating lens 700 are fixed, and the second beam expander 600 is driven by a motor to realize spatial focal length adjustment of the laser beam.
In another embodiment, the motor includes a set of linear motors, the linear motors are connected to the second collimating mirror 700, and the linear motors are controlled to drive the second collimating mirror 700 to move in the laser beam emitting direction, so that the laser beams emitted by the laser converge at one point in a spatial beam combination manner, which can be implemented in the following manner:
the first beam expander 400, the second beam expander 600 and the first collimating lens 500 are fixed, and the second collimating lens 700 is driven by a motor to realize the spatial focal length adjustment of the laser beam.
In some preferred embodiments, the motors include several groups of linear motors, the several groups of linear motors are respectively connected to two, three or four groups of the first beam expander 400, the first collimating mirror 500, the second beam expander 600 and the second collimating mirror 700, and the several groups of linear motors are controlled to drive the optical path adjusting module to be linked, so that the laser beams emitted by the laser are converged at one point in a spatial beam combination manner.
In a more preferred embodiment, the motors include four sets of linear motors, the four sets of linear motors are respectively connected to the first beam expander 400, the first collimating mirror 500, the second beam expander 600 and the second collimating mirror 700, and the light path adjusting modules are driven to be linked by controlling the sets of linear motors, so that laser beams emitted by the laser device converge at one point in a spatial beam combination manner.
Through setting up first beam expander 400, first collimating mirror 500, second beam expander 600 and second collimating mirror 700, realized the long-distance output of laser, and after drive first beam expander 400, first collimating mirror 500, second beam expander 600 and second collimating mirror 700 wherein part motor broke down, this system still can continue to work, increased the application scope that laser closed and restrainted.
Preferably, the linear motor is a piezoelectric ceramic motor.
The operation of the light path adjusting module will be described in detail with reference to fig. 3-7. The light path adjusting module is controlled by the numerical control system and is linked with the angle swing head and the rotating platform.
Referring to fig. 3, the light path adjusting module of the present invention is initialized such that the focal points of the first beam expander 400 and the second collimator 700 are overlapped, the focal points of the second beam expander 600 and the second collimator 700 are overlapped, and the output light beam is a parallel light beam. At this time, the distance between the first beam expander and the first collimating mirror is f1, the distance between the first collimating mirror and the second beam expander is f2, and the distance between the second beam expander and the second collimating mirror is f 3.
Referring to fig. 4, in an embodiment, the first beam expander 400, the first collimating mirror 500, the second beam expander 600 and the second collimating mirror 700 are coaxial, the first collimating mirror 500, the second beam expander 600 and the second collimating mirror 700 are not moved, the first beam expander 400 can move axially under the driving of the motor, when the first beam expander 400 gradually approaches the first collimating mirror 500, that is, the distance f 1' between the first beam expander and the first collimating mirror is smaller than f1, the output light beam is changed from a parallel light beam to a combined light beam, and as the first beam expander 400 approaches the first collimating mirror 500, the focus of the combined light beam is closer.
Referring to fig. 5, in another embodiment, the first beam expander 400, the first collimating mirror 500, the second beam expander 600 and the second collimating mirror 700 are coaxial, the first beam expander 400, the second beam expander 600 and the second collimating mirror 700 are not moved, the first collimating mirror 500 can move axially under the driving of the motor, when the first collimating mirror 500 gradually approaches the second beam expander 600, that is, the distance f1 "between the first beam expander and the first collimating mirror is greater than f1, the distance f 2' between the second beam expander and the first collimating mirror is less than f2, the output light beam is changed from a parallel light beam to a combined light beam, and as the first collimating mirror 500 approaches the second beam expander 600, the focus of the combined light beam is closer.
Referring to fig. 6, in another embodiment, the first beam expander 400, the first collimating mirror 500, the second beam expander 600 and the second collimating mirror 700 are coaxial, the first beam expander 400, the first collimating mirror 500 and the second collimating mirror 700, the second beam expander 600 is driven by a motor to move axially, when the second beam expander 600 gradually approaches the second collimating mirror 700, that is, the distance f2 "between the first collimating mirror and the second beam expander is greater than f2, the distance f 3' between the second beam expander and the second collimating mirror is less than f3, the output light beam is changed from a parallel light beam to a divergent light beam, and the divergent angle of the divergent light beam is greater as the second beam expander 600 approaches the second collimating mirror 700.
Referring to fig. 7, in another embodiment, the first beam expander 400, the first collimating lens 500, the second beam expander 600 and the second collimating lens 700 are coaxial, the first beam expander 400, the first collimating lens 500 and the second beam expander 600 are not moved, the second collimating lens 700 can move axially under the driving of the motor, when the second collimating lens 700 is gradually far away from the second beam expander 600, that is, the distance f3 "between the second collimating lens and the second beam expander is greater than f3, the output light beam is changed from a parallel light beam into a combined light beam, and as the second collimating lens 700 is further away from the second beam expander 600, the focus of the combined light beam is closer and closer.
The positions of the first beam expander 400, the first collimating lens 500, the second beam expander 600 and the second collimating lens 700 are respectively adjusted by the motor, so that a farther beam combining focus can be realized, and the beam combining device is suitable for different environment applications.
Referring to fig. 1-2, an ultra-high power laser space beam combining control system includes a laser space beam combining module, an angle rotation control module and a numerical control system, the laser space beam combining module is disposed on the angle rotation control module, a motor is connected to the numerical control system, the angle rotation control module is used for controlling an angle and a distance of a combined beam generated by the laser space beam combining module, and the numerical control system is used for controlling the angle rotation control module and a light path adjusting module to be linked, so that laser beams emitted by a plurality of lasers are converged at one point in a space beam combining manner.
The angle rotation control module comprises a rotating platform and an angle swinging head, the angle swinging head is arranged on the rotating platform, the rotating platform is used for driving the angle swinging head to rotate on the horizontal plane, a laser space beam combining module is arranged on the angle swinging head, and the angle swinging head is used for controlling the laser space beam combining module to rotate in the vertical plane.
The revolving stage includes first mounting platform 210, first rotating electrical machines 220, first steady subassembly, first angle measurement subassembly and chassis 100, first rotating electrical machines 220 sets up on chassis 100, the output axle head of first rotating electrical machines 220 is connected at the center of first mounting platform 210, the first steady subassembly of angle is used for increasing the rotational stability of first mounting platform 210, first angle measurement subassembly is used for measuring first mounting platform 210 rotation angle, numerical control system is connected to first angle measurement subassembly, numerical control system is used for handling the data of first angle measurement subassembly transmission and controls the rotation angle of first mounting platform 210.
Specifically, the first rotating electrical machine 220 is a servo motor.
The first dimensionally stable assembly is arranged between the chassis 100 and the first mounting platform 210, the first dimensionally stable assembly comprises a first fixing frame 231 and a plurality of fixing rods 232, the first fixing frame 231 is fixed on the chassis 100, the plurality of fixing rods 232 are circularly arrayed on the first fixing frame 231, and one end of each fixing rod 232, which is close to the bottom of the first mounting platform 210, is connected with the bottom of the first mounting platform 210 through a sliding part.
Through setting up first dimensionally stable subassembly for first mounting platform 210 is more stable when rotatory, and can not put inhomogeneous and lead to first mounting platform 210 to appear the phenomenon of slope because of the object on first mounting platform 210, has overcome the revolving force of object when rotatory on first mounting platform 210 moreover and has influenced motor shaft's work and durability to first mounting platform 210.
Specifically, the sliding member includes an annular sliding groove 233 and a pulley 234, the pulley 234 is slidably disposed in the annular sliding groove 233, and the pulley 234 is rotatably coupled to the fixing rod 232.
Specifically, first angle measurement element includes first grating reading head 243, first scale grating and second mount 241, first grating reading head 243 sets up in first mounting platform 210 lateral wall, set up annular mount 242 on the second mount 241, first mounting platform 210 periphery is surveyed to annular mount 242 cover, first scale grating sets up in annular mount towards first mounting platform 210 one side, numerical control system is connected to first grating reading head 243, first grating reading head 243 and the cooperation of first scale grating detect first mounting platform 210 and drive first grating reading head pivoted arc displacement, and then calculate first mounting platform 210 pivoted angle through numerical control system.
The angle yaw includes two sets of backup pads 310 of subtend setting, second rotating electrical machines 320 and second mounting platform 340, two sets of backup pads 310 of subtend setting set up with the vertical plane symmetry in diameter place of first mounting platform 210, second rotating electrical machines 320 sets up on a set of backup pad 310, the 320 output of second rotating electrical machines sets up the connecting axle, the connecting axle deviates from 320 one end of second rotating electrical machines and passes through on another set of backup pad 310 of bearing rotatable coupling, second mounting platform 340 sets up on the connecting axle, second rotating electrical machines 320 rotates through the drive connecting axle, and then control second mounting platform 340 rotates.
Specifically, the second rotating electric machine 320 is a servo motor.
Further, a second stabilizer assembly is disposed at the bottom of the second mounting platform 340, and the second stabilizer assembly is used for maintaining the rotational stability of the second mounting platform 340.
Specifically, the second dimensionally stable component includes the arc guide rail 350 that sets up on first mounting platform 210, arc guide rail 350 sets up in second mounting platform 340 bottom, set up bracing piece 361 between arc guide rail 350 and second mounting platform 340, bracing piece 361 one end is connected bottom second mounting platform 340, the bracing piece 361 other end passes through pulley 362 slidable connection arc guide rail 350, when second mounting platform 340 rotated, bracing piece 361 slides along with in arc guide rail 350 to play direction and supporting role to second mounting platform 340, avoid leading to second rotating electrical machines 320 impaired because the object of the installation on second mounting platform 340 is too much.
Further, a second angle measuring component is provided, the second angle measuring component is used for measuring the rotation angle of the second mounting platform 340, the second angle measuring component is connected with the numerical control system, and the numerical control system is used for processing the data transmitted by the second angle measuring component to control the rotation angle of the second mounting platform 340
In particular, the second angle measurement assembly comprises a second grating readhead and a second scale grating.
Further, a second grating reading head is arranged on the pulley 362, an arc-shaped second scale grating is arranged on the arc-shaped guide rail 350 corresponding to the second grating reading head, the second grating reading head is connected with the numerical control system, the second grating reading head and the second scale grating are matched to detect that the second mounting platform 340 drives the second grating reading head to rotate to move in an arc shape, and then the rotating angle of the first mounting platform 210 is calculated through the numerical control system.
The principle of the invention is as follows: after receiving an instruction of an upper computer, the numerical control system controls the rotation of the rotating platform and the angle swing head, calculates the rotation angles of the rotating platform and the angle swing head through data returned from the first grating reading head in real time, and adjusts the rotation angles of the rotating platform and the angle swing head in real time, so that the laser emission direction in the light path adjusting module points to the direction to be focused, and the positioning in a three-dimensional space is realized.
And then the motor is controlled by a numerical control system to drive the first beam expander 400, the first collimating lens 500, the second beam expander 600 and the second collimating lens 700 to be linked in the axial direction, so as to control the distance of the focus.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A laser space beam combination control system with ultrahigh power comprises a laser space beam combination module and a beam combination control system, wherein the laser space beam combination module comprises a plurality of lasers and a light path adjusting module, the light path adjusting module comprises a first beam expanding lens (400), a first collimating lens (500), a second beam expanding lens (600), a second collimating lens (700) and a motor, the first beam expanding lens (400), the first collimating lens (500), the second beam expanding lens (600) and the second collimating lens (700) are sequentially and coaxially arranged, the plurality of lasers are arranged on one side of the first beam expanding lens (400), and laser beams emitted by the plurality of lasers sequentially pass through the first beam expanding lens (400), the first collimating lens (500), the second beam expanding lens (600) and the second collimating lens (700) and then are converged at one point in a space beam combination mode;
the beam combination control system comprises an angle rotation control module and a numerical control system, the laser space beam combination module is arranged on the angle rotation control module, the motor is connected with the numerical control system, the angle rotation control module is used for controlling the angle and the distance of the combined beam laser generated by the laser space beam combination module, and the numerical control system is used for controlling the angle rotation control module and the light path adjusting module to be linked, so that laser beams emitted by the plurality of lasers are converged at one point in a space beam combination mode;
the angle rotation control module comprises a rotating platform and an angle swinging head, the angle swinging head is arranged on the rotating platform and is used for driving the angle swinging head to rotate on a horizontal plane, the laser space beam combining module is arranged on the angle swinging head, and the angle swinging head is used for controlling the laser space beam combining module to rotate in a vertical plane;
the rotating platform comprises a first mounting platform (210), a first rotating motor (220), a first angle measuring component and a chassis (100), wherein the first rotating motor (220) is arranged on the chassis (100), the center of the first mounting platform (210) is connected with the output shaft end of the first rotating motor (220), the first angle measuring component is used for increasing the rotating stability of the first mounting platform (210), the first angle measuring component is used for measuring the rotating angle of the first mounting platform (210), the first angle measuring component is connected with the numerical control system, and the numerical control system is used for processing data transmitted by the first angle measuring component to control the rotating angle of the first mounting platform (210);
the angle swinging head comprises two groups of oppositely arranged supporting plates (310), a second rotating motor (320) and a second mounting platform (340), the two groups of oppositely arranged supporting plates (310) are symmetrically arranged on a vertical plane where the diameter of the first mounting platform (210) is located, the second rotating motor (320) is arranged on one group of supporting plates (310), the output end of the second rotating motor (320) is provided with a connecting shaft, one end, deviating from the second rotating motor (320), of the connecting shaft is rotatably connected with the other group of supporting plates (310) through a bearing, the second mounting platform (340) is arranged on the connecting shaft, and the second rotating motor (320) drives the connecting shaft to rotate so as to control the second mounting platform (340) to rotate;
a second angle measuring component is arranged at the bottom of the second mounting platform (340), and is used for measuring the rotation angle of the second mounting platform (340), the second angle measuring component is connected with the numerical control system, and the numerical control system is used for processing data transmitted by the second angle measuring component to control the rotation angle of the second mounting platform (340);
the second angle measurement assembly comprises a second grating readhead and a second scale grating;
the second grating reading head is arranged on the pulley (362), an arc-shaped second scale grating is arranged on the arc-shaped guide rail (350) corresponding to the second grating reading head, the second grating reading head is connected with the numerical control system, the second grating reading head and the second scale grating are matched to detect the arc-shaped displacement of the second mounting platform (340) driving the second grating reading head to rotate, and then the rotation angle of the second mounting platform is controlled through the numerical control system;
the second dimensionally stable component comprises an arc-shaped guide rail (350) arranged on the first mounting platform (210), the arc-shaped guide rail (350) is arranged at the bottom of the second mounting platform (340), a support rod (361) is arranged between the arc-shaped guide rail (350) and the second mounting platform (340), one end of the support rod (361) is connected with the bottom of the second mounting platform (340), and the other end of the support rod (361) is connected with the arc-shaped guide rail (350) in a sliding mode through a pulley (362).
2. An ultra-high power laser spatial beam combining control system according to claim 1, characterized in that: the motor comprises a group of linear motors, the linear motors are connected with the first beam expander (400), the linear motors are controlled to drive the first beam expander (400) to move in the laser beam emitting direction, so that laser beams emitted by the laser device are converged at one point in a spatial beam combination mode, and the method is realized in the following mode: the first collimating lens (500), the second beam expanding lens (600) and the second collimating lens (700) are fixed, and the first beam expanding lens (400) is driven by the linear motor to realize the spatial focal length adjustment of the laser beam.
3. An ultra-high power laser spatial beam combining control system according to claim 1, characterized in that: the motor comprises a group of linear motors, the linear motors are connected with the first collimating mirror (500), the linear motors are controlled to drive the first collimating mirror (500) to move in the emitting direction of the laser beams, so that the laser beams emitted by the laser device are converged at one point in a spatial beam combination mode, and the method is realized in the following mode: first beam expander mirror (400), second beam expander mirror (600) and second collimating mirror (700) are fixed, first collimating mirror (500) by linear motor drive realizes the focus in the space of laser beam and adjusts.
4. An ultra-high power laser spatial beam combining control system according to claim 1, characterized in that: the motor comprises a group of linear motors, the linear motors are connected with the second beam expander (600), the linear motors are controlled to drive the second beam expander (600) to move in the laser beam emitting direction, so that laser beams emitted by the laser device are converged at one point in a spatial beam combination mode, and the method is realized in the following mode: the first beam expander (400), the first collimating lens (500) and the second collimating lens (700) are fixed, and the second beam expander (600) is driven by the linear motor to realize the spatial focal length adjustment of the laser beam.
5. An ultra-high power laser spatial beam combining control system according to claim 1, characterized in that: the motor comprises a group of linear motors, the linear motors are connected with the second collimating mirror (700), the second collimating mirror (700) is driven to move in the laser beam emission direction by controlling the linear motors, so that the laser beams emitted by the laser device are converged at one point in a spatial beam combination mode, and the method is realized in the following mode: the first beam expander (400), the second beam expander (600) and the first collimating lens (500) are fixed, and the second collimating lens (700) is driven by the linear motor to realize the spatial focal length adjustment of the laser beam.
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