CN219402787U - Composite laser head - Google Patents

Abstract

The utility model relates to a compound laser head, which is provided with a first direction and a second direction which are perpendicular to each other, and comprises two collimation devices, a vibrating mirror swinging device, a beam combining device and an emergent device, wherein: the vibrating mirror swinging device comprises a first shell and two groups of vibrating mirror assemblies, wherein each vibrating mirror assembly comprises a rotation driving piece and a vibrating mirror piece, the rotation driving piece is arranged in the first shell, output ends extend into the first shell and are connected with the vibrating mirror pieces, and the two output ends extend along a first direction and a second direction respectively; the beam combining device is arranged and connected with the first shell along a first direction and is arranged and connected with the emergent device along a second direction; two ends of one collimating device are connected with the blue laser and the beam combining device along the second direction, and two ends of the other collimating device are connected with the optical fiber laser and the first shell; the optical fiber laser can quickly generate larger swing diameter, and has the advantages of higher laser processing speed, higher efficiency, better processing effect, adaptability to various processing patterns and larger process window.

Description

Composite laser head

Technical Field

The utility model relates to the technical field of laser processing, in particular to a composite laser head.

Background

The laser processing utilizes the laser beam with high energy density to act on the workpiece to be processed, has the advantages of non-contact, high processing speed, high quality and the like, and is widely applied to cutting, welding, quenching, punching, micro-engraving and other processes.

With the rapid development of the automobile and electrical industries in recent years, the demand for laser processing of copper materials having high thermal and electrical conductivity has increased. At present, a near infrared laser with the wavelength of 0.8-1.06 mu m is mainly used for processing copper materials, but the laser absorptivity of the copper materials for the infrared band of 0.8-1.06 mu m is only 10% or even smaller, and the effect of laser processing high-reflection materials such as copper, copper alloy and the like is still unsatisfactory even if the power of the near infrared laser is increased. According to the light absorptivity of the copper material, the light absorptivity of the copper material is sharply increased along with the continuous decrease of the wavelength to below 500nm, the absorptivity of the copper material can reach 60% in the 400nm wave band, a composite laser head with blue laser and infrared laser is emerging along with the light absorptivity, but the traditional composite laser head adopts a central control motor to drive a generator of the blue laser and the infrared laser, the processing speed is lower, the processing shape is single, the processing precision is poor, and the processing scene is limited.

Therefore, providing a composite laser head with better processing effect and faster processing speed is a technical problem to be solved urgently at present.

Disclosure of Invention

In view of the above, it is necessary to provide a composite laser head that has a good processing effect and a high processing speed.

The utility model provides a composite laser head, which is provided with a first direction and a second direction which are perpendicular to each other, and comprises two collimation devices, a vibrating mirror swinging device, a beam combining device and an emergent device, wherein:

the vibrating mirror swinging device comprises a first shell and two groups of vibrating mirror assemblies, the vibrating mirror assemblies comprise a rotation driving piece and vibrating mirrors, the rotation driving piece is arranged in the first shell, an output end stretches into the first shell and is connected with the vibrating mirrors, and the two output ends respectively extend along the first direction and the second direction;

the beam combining device is arranged and connected with the first shell along the first direction and is arranged and connected with the emergent device along the second direction;

and two ends of one collimating device are connected with the blue laser and the beam combining device along the second direction, and two ends of the other collimating device are connected with the fiber laser and the first shell.

When the composite laser head works, one collimating device, the beam combining device and the emitting device form a blue laser light path which starts from the blue laser and is transmitted along the second direction, the other collimating device, the vibrating mirror swinging device, the beam combining device and the emitting device form a fiber laser light path which starts from the fiber laser and is emitted along the second direction, the laser emitted from the emitting device after passing through the beam combining device comprises blue laser and fiber laser, because the high-reflection metal material has higher energy absorptivity to the blue laser so that the high-reflection metal material can be quickly warmed up to form a keyhole and a liquid molten pool, at the moment, the absorptivity of the fiber laser is improved along with the change of the material state, simultaneously, two rotary driving parts respectively drive a vibrating mirror to rotate along the first direction or the second direction, so that the fiber laser can quickly generate larger swinging diameter to stir the molten pool, the keyhole is continuously enlarged, the stability of the molten pool is improved, the splash is reduced, the micro-pore is reduced, the surface quality is improved, the laser processing speed is higher, the efficiency is better, the processing effect is better, and the two groups of vibrating mirror components can generate square shapes, C shapes, linear shapes and different square shapes can be processed, and the graph can respond to a plurality of small-shaped graph shapes, and the graph can be processed by a large graph, and the graph can respond to a large graph and a small graph, and the graph can be processed.

In one embodiment, the vibrating mirror swinging device further comprises a reflecting component, wherein the reflecting component comprises a transparent reflecting lens and a transparent reflecting mirror seat, the transparent reflecting mirror seat is installed on the first shell, and the transparent reflecting lens is arranged on the transparent reflecting mirror seat and is located in the first shell.

In one embodiment, the galvanometer swinging device further comprises a swinging control assembly, wherein the swinging control assembly comprises a driving box, a board card and a mounting board, and the swinging control assembly comprises:

the driving box is mounted on the first shell and is electrically connected with the rotating driving piece;

the board is arranged on the mounting plate and is in communication connection with the driving box;

the mounting plate is mounted on the drive box.

In one embodiment, a first water cooling component is arranged in the transparent reflector seat, and the first water cooling component is externally connected with a cold source; and/or a second water cooling assembly is arranged in the mounting plate, and the second water cooling assembly is externally connected with a cold source.

In one embodiment, the collimating means comprises:

one end of the second shell along the second direction is connected with the beam combining device or the first shell, and the other end of the second shell forms an interface for connecting the blue laser and the fiber laser;

the collimating lens group comprises a meniscus lens and a biconvex lens, and the meniscus lens and the biconvex lens are sequentially arranged in the second shell along the second direction towards the beam combining device.

In one embodiment, the collimating device further includes a collimating protective lens disposed in the second housing and located on a side of the meniscus lens away from the biconvex lens.

In one embodiment, the exit device comprises a focusing module, the focusing module comprises a third shell and a focusing lens group, the third shell is connected to one side, far away from the collimating device, of the beam combining device, the focusing lens group comprises a dual-band biconvex lens and a dual-band meniscus lens, and the dual-band biconvex lens and the dual-band meniscus lens are sequentially arranged in the third shell along the second direction far away from the beam combining device.

In one embodiment, the exit device further includes a protection mirror module and an injection module, the protection mirror module and the injection module are arranged and connected along the second direction, and the protection mirror module is connected to one side of the third housing away from the beam combining device, the protection mirror module includes a fourth housing and a plurality of protection lenses, the fourth housing is connected to one side of the third housing away from the beam combining device, and a plurality of protection lenses are arranged in the fourth housing at intervals along the second direction in a stacked manner.

In one embodiment, the spray module comprises a first platen, a light source, a fifth housing, an air fitting, an adjusting locking ring, an adjusting member, and a nozzle, wherein:

one end of the first pressing plate along the second direction is connected to one side, far away from the third shell, of the fourth shell, and the other end of the first pressing plate is connected with the fifth shell;

the fifth shell is internally provided with the light source and is communicated with a gas source through the gas pipe joint arranged on the fifth shell;

the adjusting piece is coaxially provided with the nozzle, and is coaxially connected and communicated with the fifth shell through an adjusting locking ring.

In one embodiment, the composite laser head further comprises a monitoring device, the monitoring device comprises a camera, a lens, a second pressing plate, an optical filter and an elastic adjusting component, wherein:

the elastic adjusting assembly comprises a sixth shell, a plurality of fasteners, a plurality of elastic pieces, an elastic pressing ring and a sealing piece, wherein the optical filter is arranged on the elastic pressing ring and is arranged in the sixth shell, and the sealing piece is arranged on the first shell along the second direction through the fasteners sleeved with the elastic pieces by the sixth shell;

the lens is mounted on one side, far away from the first shell, of the sixth shell along the second direction through the second pressing plate, and the camera is mounted on one side, far away from the second pressing plate, of the lens.

Drawings

Fig. 1 is a schematic structural diagram of a composite laser head according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a hybrid laser head according to an embodiment of the present utility model;

fig. 3 is a cross-sectional view of a composite laser head according to an embodiment of the present utility model;

FIG. 4 is an exploded view of a module formed by a vibrating mirror oscillating device and a monitoring device in a composite laser head according to an embodiment of the present utility model;

fig. 5 is a bottom view of the jetting module in the composite laser head according to an embodiment of the present utility model;

fig. 6 is a cross-sectional view of the spray module of fig. 5.

Reference numerals:

10. a composite laser head; x, a first direction; z, the second direction;

100. a collimation device; 100A, a first collimating means; 110A, a second housing; 111A, interface; 120A, a collimating lens group; 121A, a meniscus lens; 122A, a biconvex lens; 130A, collimation protection mirror; 100B, a second collimating means; 110B, a second housing; 111B, interfaces; 120B, a collimating lens group; 121B, a meniscus lens; 122B, a lenticular lens; 130B, a collimation protection mirror;

200. a vibrating mirror swinging device; 210. a first housing; 220. a galvanometer assembly; 221. a rotary driving member; 222. vibrating the lens; 230. a reflective assembly; 231. a transparent reflection sheet; 232. a transflector mount; 233. a first water cooling assembly; 240. a swing control assembly; 241. a drive box; 242. a board card; 243. a mounting plate; 244. a wiring groove plate; 245. a second water cooling assembly;

300. a beam combining device; 310. a beam combining housing; 320. a beam combining lens;

400. an exit device; 410. a focusing module; 411. a third housing; 412. a focusing lens group; 4121. a dual band biconvex mirror; 4122. a dual band meniscus; 420. a protection mirror module; 421. a fourth housing; 422. a protective lens; 430. a jetting module; 431. a first platen; 432. a light source; 433. a fifth housing; 434. an air pipe joint; 435. adjusting the locking ring; 436. an adjusting member; 437. a nozzle;

500. a monitoring device; 510. a camera; 520. a lens; 530. a second pressing plate; 540. a light filter; 550. an elastic adjustment assembly; 551. a sixth housing; 552. a fastener; 553. an elastic member; 554. an elastic pressing ring; 555. and a seal.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The following describes the technical scheme provided by the embodiment of the utility model with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, the present utility model provides a composite laser head 10, which is applied to a laser processing device for laser processing high-reflectivity materials such as gold, silver, aluminum and aluminum alloys, copper and copper alloys, mirror surface stainless steel (without film), and the like. The composite laser head 10 has a first direction X and a second direction Z, which are perpendicular to each other, and when specifically arranged, the first direction X may be a horizontal direction and the second direction Z may be a vertical direction. The composite laser head 10 comprises two collimation devices 100, a galvanometer swinging device 200, a beam combining device 300 and an emergent device 400, wherein the two collimation devices 100 comprise a first collimation device 100A and a second collimation device 100B, the galvanometer swinging device 200 and the beam combining device 300 are arranged and connected into a whole along a first direction X, the first collimation device 100A and the emergent device 400 are arranged on two sides of the beam combining device 300 along a second direction Z, one end of the first collimation device 100A far away from the beam combining device 300 is matched with a blue laser for use, the emergent device 400 is arranged on one end of the beam combining device 300 far away from the first collimation device 100A, the second collimation device 100B and the first collimation device 100A are arranged side by side along the first direction X and connected onto the galvanometer swinging device 200, one end of the second collimation device 100B far away from the galvanometer swinging device 200 is matched with an optical fiber laser, so that the first collimation device 100A, the emergent device 300 and the emergent device 400 form a laser light path from the blue laser along the second direction Z, the second collimation device 100B and the emergent laser light path from the first collimation device 300 and the second galvanometer swinging device along the first direction Z.

Referring to fig. 3 and fig. 4 together, the oscillating mirror swinging device 200 includes a first housing 210 and two sets of oscillating mirror assemblies 220, the oscillating mirror assemblies 220 include a rotation driving member 221 and an oscillating mirror 222, the rotation driving member 221 is disposed on the first housing 210, and output ends of the rotation driving member 221 extend into the first housing 210, and output ends of the two rotation driving members 221 extend along a first direction X and a second direction Z respectively, and the oscillating mirror 222 is connected with an output end of the rotation driving member 221; when specifically setting up, rotate driving piece 221 can be the motor, can also be other structure that can satisfy the rotation demand, shake lens 222 and install the output at the driving piece through the anchor clamps, and this anchor clamps are one end fluting, the other end is equipped with the structural style of screw section of thick bamboo. The galvanometer swinging device 200 processes the fiber laser entering the first housing 210 through the two sets of galvanometer assemblies 220 so that the fiber laser generates a swinging shape of a circle, a straight line, a broken line, a square, a C-shape, an S-shape, an 8-shape, and the like.

In order to further expand the swing radius of the fiber laser, in a preferred embodiment, with continued reference to fig. 3 and 4, the oscillating mirror swing device 200 further includes a reflecting component 230, where the reflecting component 230 includes a transparent mirror plate 231 and a transparent mirror base 232, the transparent mirror base 232 is mounted on the first housing 210 by a threaded connection, a snap connection, a concave-convex fit, etc., the transparent mirror plate 231 is located in the first housing 210, and the transparent mirror plate 231 is disposed on the transparent mirror base 232 by a snap connection, a concave-convex fit, etc. In the oscillating mirror oscillating device 200, the lens 231 and the two oscillating mirrors 222 are respectively located on the optical path of the fiber laser, and the lens 231 and the two oscillating mirrors 222 cooperate to expand the range of the fiber laser, so that the oscillating radius of the fiber laser is further expanded, and the process window is enlarged.

In order to facilitate the rotation control of the vibrating mirror 222, and in particular, with continued reference to fig. 3 and 4, the vibrating mirror device 200 further includes a swing control assembly 240, the swing control assembly 240 includes a driving box 241, a board card 242, and a mounting plate 243, wherein: the driving box 241 is mounted on the first housing 210 by means of threaded connection, snap connection, concave-convex fit and the like, and the driving box 241 is electrically connected with the rotation driving piece 221 by a cable, the driving box 241 is used for providing power supply for the rotation driving piece 221, and the cable is limited to the driving box 241 and the first housing 210 by the wiring groove plate 244 when the specific arrangement is performed; the board 242 is mounted on the mounting plate 243 by means of snap connection, concave-convex fit and the like, and the board 242 is in communication connection with the driving box 241 by means of contacts and elastic sheets; the mounting plate 243 is mounted on the driving case 241 by means of screw connection, snap connection, male-female fit, etc. When the galvanometer swinging device 200 works, the driving box 241 controls the rotation driving piece 221 to act according to the control program in the board 242, and the rotation driving piece 221 drives the galvanometer piece 222 to rotate around the first direction X or the second direction Z by a set angle, so that the fiber laser swinging shape of the corresponding shape can be obtained more accurately.

In order to ensure the reliability of the vibrating mirror device 200, specifically, with continued reference to fig. 4, a first water cooling component 233 is disposed in the transparent mirror base 232, and the first water cooling component 233 is externally connected with a cold source; or, a second water cooling assembly 245 is arranged in the mounting plate 243, and the second water cooling assembly 245 is externally connected with a cold source; or, the first water cooling component 233 is disposed in the transparent mirror base 232, and the second water cooling component 245 is disposed in the mounting plate 243, and the first water cooling component 233 and the second water cooling component 245 are respectively externally connected with a cold source. When the vibrating mirror swinging device 200 works, heat generated by the lens 231 in the working process is exchanged with the first water cooling component 233, so that the heat can be timely discharged, the thermal expansion tendency of the lens 231 is reduced, proper cooling of the surface of the lens 231 is ensured, the technical requirements and damage threshold of the lens 231 can be ensured to always meet the requirements, and likewise, the heat generated by the board card 242 in the working process is exchanged with the second water cooling component 245, so that the heat can be timely discharged, and the influence on the service life and reliability of the board card 242 components due to accumulation of hot and cold in the board card 242 is avoided.

As shown in fig. 3, the beam combining device 300 includes a beam combining housing 310 and a beam combining lens 320, the beam combining lens 320 is disposed in the beam combining housing 310, the beam combining housing 310 is connected to the first housing 210 by a threaded connection, a snap connection, a concave-convex fit, and the like, and the beam combining device 300 performs beam combining processing on the blue laser and the fiber laser entering the beam combining housing 310 through the beam combining lens 320, so as to obtain a composite beam with the blue laser and the fiber laser. One end of the first collimating device 100A, which is far away from the blue light laser along the second direction Z, is connected with the beam combining housing 310 through a threaded connection, a snap connection, a concave-convex fit and other modes, one end of the second collimating device 100B, which is far away from the optical fiber laser, is connected with the first housing 210 through a threaded connection, a snap connection, a concave-convex fit and other modes, and when the device is specifically set, the blue light laser generates 2000W and 450nm blue light semiconductor laser, and the optical fiber laser generates 4000W and 1060nm optical fiber laser.

In order to improve the collimation effect of the collimation device 100, in a preferred embodiment, with continued reference to fig. 3 and 4, the first collimation device 100A includes a second housing 110A and a collimation lens group 120A, the second housing 110A is of a hollow cylindrical structure, one end of the second housing 110A along the second direction Z is connected with the beam combining housing 310 by means of threaded connection, snap connection, concave-convex fit, etc., the other end of the second housing 110A along the second direction Z forms an interface 111A, and the interface 111A is a blue light interface 111A connected with a blue light laser; the collimating lens group 120A includes a meniscus lens 121A and a biconvex lens 122A, where the meniscus lens 121A and the biconvex lens 122A are sequentially disposed in the second housing 110A along the second direction Z toward the beam combining device 300 by means of concave-convex fit, snap connection, and the like; in the first collimating device 100A, since the aberrations of the meniscus lens 121A and the biconvex lens 122A are complementary, the meniscus lens 121A and the biconvex lens 122A are disposed so as to minimize the aberrations of the collimating lens group 120A, thereby obtaining a relatively balanced collimated blue laser beam and improving the collimating effect of the first collimating device 100A.

The second collimating device 100B includes a second housing 110B and a collimating lens group 120B, where the second housing 110B is a hollow cylindrical structure, one end of the second housing 110B in the second direction Z of the second collimating device 100B is connected to the first housing 210 by a threaded connection, a snap connection, a concave-convex fit, etc., and the other end of the second housing 110B in the second direction Z forms an interface 111B, and the interface 111B is an optical fiber interface 111B connected to an optical fiber laser; the collimating lens group 120B includes a meniscus lens 121B and a biconvex lens 122B, where the meniscus lens 121B and the biconvex lens 122B are sequentially disposed in the second housing 110B along the second direction Z toward the beam combining device 300 by means of concave-convex fitting, snap connection, and the like. In the second collimating device 100B, since the aberrations of the meniscus lens 121B and the biconvex lens 122B are complementary, the meniscus lens 121B and the biconvex lens 122B are disposed so as to minimize the aberrations of the collimating lens group 120B, thereby obtaining a relatively balanced collimated fiber laser and improving the collimating effect of the second collimating device 100B.

In order to improve the reliability of the collimating device 100, specifically, with continued reference to fig. 3 and 4, the first collimating device 100A further includes a collimating protective lens 130A, the collimating protective lens 130A may be disposed in the second housing 110A by a protective lens seat, and the collimating protective lens 130A is located at a side of the meniscus lens 121A away from the biconvex lens 122A; by arranging the collimation protection lens 130A to separate the meniscus lens 121A and the blue light interface 111A, on one hand, dust and processing residues can be prevented from falling onto the collimation lens set 120A, on the other hand, collision or misoperation can be prevented from damaging the collimation lens set 120A, the meniscus lens 121A and the biconvex lens 122A can be protected, and the reliability and the service life of the first collimation device 100A are improved; the second collimating device 100B further includes a collimating protective lens 130B, where the collimating protective lens 130B may be disposed in the second housing 110B through a protective lens seat, and the collimating protective lens 130B is located at a side of the meniscus lens 121B away from the biconvex lens 122B; through setting up collimation protection lens 130B to separate meniscus lens 121B and optic fibre interface 111B, on the one hand can avoid dust, processing residue to fall into on the collimation lens group 120B, on the other hand can also avoid collision or maloperation to damage collimation lens group 120B, can protect meniscus lens 121B, biconvex lens 122B, improve first collimation device 100A's reliability and life.

In a preferred embodiment, as shown in fig. 2 and 3, the exit device 400 includes a focusing module 410, the focusing module 410 includes a third housing 411 and a focusing lens assembly 412, the third housing 411 is connected to a side of the beam combining housing 310 away from the collimating device 100 by a threaded connection, a snap connection, a concave-convex fit, etc., the focusing lens assembly 412 includes a dual-band biconvex lens 4121 and a dual-band meniscus lens 4122, and the dual-band biconvex lens 4121 and the dual-band meniscus lens 4122 are sequentially disposed in the third housing 411 along the second direction Z away from the beam combining device 300 by a concave-convex fit, a snap connection, etc. In the focusing module 410, since the aberrations of the dual-band convex lens 4121 and the dual-band meniscus lens 4122 are complementary, the dual-band convex lens 4121 and the dual-band meniscus lens 4122 are arranged to make the aberrations of the focusing lens group 412 as small as possible, so as to obtain balanced focused blue laser and focused fiber laser, improve the quality of the focused beam, make the focused beam energy more concentrated, have higher power density and better focusing effect.

As shown in fig. 2, fig. 3, fig. 5, and fig. 6, specifically, the exit device 400 further includes a protective lens module 420 and an injection module 430, the protective lens module 420 and the injection module 430 are arranged along the second direction Z and are connected into a whole, the protective lens module 420 is connected to a side of the third housing 411 away from the beam combining device 300, the protective lens module 420 includes a fourth housing 421 and a plurality of protective lenses 422, the fourth housing 421 is connected to a side of the third housing 411 away from the beam combining device 300 by a threaded connection, a snap connection, a male-female connection, or the like, the number of the protective lenses 422 may be two, three, or more, and the plurality of protective lenses 422 are arranged at intervals along the second direction Z and are stacked in the fourth housing 421 by a male-female connection, a snap connection, or the like. In the above-mentioned exit device 400, by providing the plurality of protection lenses 422 to separate the injection module 430 and the dual-band meniscus lens 4122, on one hand, dust and processing residues can be prevented from entering the focusing lens group 412, and on the other hand, collision or misoperation can be prevented from damaging the focusing lens group 412, so that the dual-band biconvex lens 4121 and the dual-band meniscus lens 4122 can be protected repeatedly, the reliability and service life of the focusing lens group 412 are improved, and further the reliability of the composite laser head 10 is improved.

As shown in fig. 2, 3, 5 and 6, more specifically, the spray module 430 includes a first pressure plate 431, a light source 432, a fifth housing 433, an air tube connector 434, an adjusting locking ring 435, an adjusting piece 436 and a nozzle 437, wherein: one end of the first pressing plate 431 along the second direction Z is connected to one side of the fourth shell 421 far away from the third shell 411 through a threaded connection, a snap connection, a concave-convex fit and the like, and the other end of the first pressing plate 431 along the second direction Z is connected with the fifth shell 433 through a threaded connection, a snap connection, a concave-convex fit and the like; the light source 432 is arranged in the fifth shell 433 in a mode of buckle connection, concave-convex fit, bonding and the like, the air pipe joint 434 is arranged on an air inlet hole of the fifth shell 433 in a mode of embedding, sleeving and the like, and the air pipe joint 434 is communicated with the fifth shell 433 and an air source; the adjusting member 436 is coaxially provided with a nozzle 437, the adjusting member 436 is coaxially connected with the fifth housing 433 through an adjusting locking ring 435, and the adjusting member 436 is communicated with the fifth housing 433, when the adjusting member 436 is specifically provided, the step section of the adjusting member 436 is inserted into the fifth housing 433, the adjusting locking ring 435 is sleeved and rotatably clamped on the stage of the adjusting member 436, and the adjusting locking ring 435 is positioned between the end surface of the fifth housing 433 and the step surface of the adjusting member 436. In the above-mentioned injection module 430, by limiting the injection module 430 to include the light source 432, no external visual light source is needed, so as to improve the integration level of the composite laser head 10, and the method is especially suitable for scenes with narrow laser processing space, and effectively avoids possible interference between the composite laser head 10 and external workpieces; and by adjusting the adjusting locking ring 435 such that the adjusting member 436, the fifth housing 433 and the nozzle 437 are coaxially installed, the gas injection effect is improved.

In order to facilitate monitoring of the laser light path, in a preferred embodiment, as shown in fig. 1, 2, 3 and 4, the composite laser head 10 further includes a monitoring device 500, where the monitoring device 500 includes a camera 510, a lens 520, a second platen 530, a filter 540, and an elasticity adjusting assembly 550, and the method further includes: the elastic adjusting assembly 550 includes a sixth housing 551, a plurality of fasteners 552, a plurality of elastic members 553, an elastic pressing ring 554 and a sealing member 555, wherein the optical filter 540 is disposed on the elastic pressing ring 554, the elastic pressing ring 554 is disposed in the sixth housing 551, the plurality of fasteners 552 pass through openings on the sixth housing 551, the elastic members 553 are sleeved on one side of the fasteners 552 near the first housing 210, the sixth housing 551, the elastic members 553 and the first housing 210 are elastically and hermetically connected together along the second direction Z by the fasteners 552 and the elastic members 553, the fasteners 552 can be structural members with fastening functions such as screws, bolts and the like, the elastic members 553 are structural members with elastic functions such as rectangular springs, elastic gaskets and the like, and the sealing member 555 can be structural members with sealing functions such as silica gel rings and sealing strips.

One end of the second pressing plate 530 along the second direction Z is inserted into the sixth housing 551 at a side far away from the first housing 210 along the second direction Z, and the second pressing plate 530 and the sixth housing 551 are fixedly connected by means of threaded connection, snap connection, concave-convex fit and the like, the lens 520 is mounted at the other end of the second pressing plate 530 along the second direction Z by means of threaded connection, snap connection, concave-convex fit and the like, and the camera 510 is mounted at a side of the lens 520 far away from the second pressing plate 530. In the above-mentioned composite laser head 10, the monitoring device 500, the beam combining device 300, the focusing module 410, the protection mirror module 420 and the injection module 430 form a monitoring transmission light path, and perform field of view adjustment in real time through the elastic adjustment component 550, so as to monitor the laser light path in real time, observe and regulate the laser processing effect, and ensure the laser processing effect.

When the above composite laser head 10 works, the laser emitted from the emitting device 400 after passing through the beam combining device 300 includes blue laser and fiber laser, and the high-reflection metal material has higher energy absorptivity to the blue laser so that the high-reflection metal material can be quickly heated to form a keyhole and a liquid molten pool, at this time, the absorptivity of the fiber laser is improved along with the change of the material state, and simultaneously, the two rotation driving members 221 respectively drive the vibrating lens 222 to rotate around the first direction X or the second direction Z, so that the fiber laser can quickly generate a larger swing diameter, so as to stir the molten pool to continuously expand the keyhole, improve the stability of the molten pool, reduce splashing, reduce micro-pores, improve the surface quality, make the laser processing speed faster, the efficiency higher, the processing effect better, adapt to various processing patterns and the process window bigger, and the size and speed of the processing pattern are adjustable and controllable by the rotation driving members 221, and the response speed and the precision higher precision.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides a compound laser head which characterized in that has the first direction and the second direction that are perpendicular, includes two collimation device, galvanometer pendulous device, closes beam device and exit device, wherein:

the vibrating mirror swinging device comprises a first shell and two groups of vibrating mirror assemblies, the vibrating mirror assemblies comprise a rotation driving piece and vibrating mirrors, the rotation driving piece is arranged in the first shell, an output end stretches into the first shell and is connected with the vibrating mirrors, and the two output ends respectively extend along the first direction and the second direction;

the beam combining device is arranged and connected with the first shell along the first direction and is arranged and connected with the emergent device along the second direction;

and two ends of one collimating device are connected with the blue laser and the beam combining device along the second direction, and two ends of the other collimating device are connected with the fiber laser and the first shell.

2. The composite laser head of claim 1, wherein the galvanometer oscillating device further comprises a reflecting assembly, the reflecting assembly comprises a transparent mirror plate and a transparent mirror base, the transparent mirror base is mounted on the first housing, the transparent mirror plate is disposed on the transparent mirror base and is located in the first housing.

3. The composite laser head of claim 2, wherein the galvanometer oscillating device further comprises an oscillating control assembly comprising a drive box, a board card, and a mounting plate, wherein:

the driving box is mounted on the first shell and is electrically connected with the rotating driving piece;

the board is arranged on the mounting plate and is in communication connection with the driving box;

the mounting plate is mounted on the drive box.

4. The composite laser head according to claim 3, wherein a first water cooling assembly is arranged in the transparent mirror base, and the first water cooling assembly is externally connected with a cold source; and/or a second water cooling assembly is arranged in the mounting plate, and the second water cooling assembly is externally connected with a cold source.

5. The composite laser head of claim 1, wherein the collimating means comprises:

one end of the second shell along the second direction is connected with the beam combining device or the first shell, and the other end of the second shell forms an interface for connecting the blue laser and the fiber laser;

the collimating lens group comprises a meniscus lens and a biconvex lens, and the meniscus lens and the biconvex lens are sequentially arranged in the second shell along the second direction towards the beam combining device.

6. The composite laser head of claim 5 wherein the collimating means further comprises a collimating protective lens disposed within the second housing and on a side of the meniscus lens remote from the biconvex lens.

7. The composite laser head of claim 1, wherein the exit device comprises a focusing module, the focusing module comprises a third housing and a focusing lens group, the third housing is connected to one side of the beam combining device away from the collimating device, the focusing lens group comprises a dual-band biconvex lens and a dual-band meniscus lens, and the dual-band biconvex lens and the dual-band meniscus lens are sequentially arranged in the third housing along the second direction away from the beam combining device.

8. The composite laser head of claim 7, wherein the exit device further comprises a protective mirror module and an injection module, the protective mirror module and the injection module are arranged and connected along the second direction, the protective mirror module is connected to one side of the third housing far away from the beam combining device, the protective mirror module comprises a fourth housing and a plurality of protective lenses, the fourth housing is connected to one side of the third housing far away from the beam combining device, and the protective lenses are spaced along the second direction and are stacked in the fourth housing.

9. The composite laser head of claim 8, wherein the jetting module comprises a first platen, a light source, a fifth housing, an air tube fitting, an adjusting locking ring, an adjusting member, and a nozzle, wherein:

one end of the first pressing plate along the second direction is connected to one side, far away from the third shell, of the fourth shell, and the other end of the first pressing plate is connected with the fifth shell;

the fifth shell is internally provided with the light source and is communicated with a gas source through the gas pipe joint arranged on the fifth shell;

the adjusting piece is coaxially provided with the nozzle, and is coaxially connected and communicated with the fifth shell through an adjusting locking ring.

10. The composite laser head of claim 1, further comprising a monitoring device comprising a camera, a lens, a second platen, an optical filter, an elastic adjustment assembly, wherein:

the elastic adjusting assembly comprises a sixth shell, a plurality of fasteners, a plurality of elastic pieces, an elastic pressing ring and a sealing piece, wherein the optical filter is arranged on the elastic pressing ring and is arranged in the sixth shell, and the sealing piece is arranged on the first shell along the second direction through the fasteners sleeved with the elastic pieces by the sixth shell;

the lens is mounted on one side, far away from the first shell, of the sixth shell along the second direction through the second pressing plate, and the camera is mounted on one side, far away from the second pressing plate, of the lens.