Laser head and laser processing equipment

Abstract

The utility model provides a laser head and laser processing equipment. The laser head comprises a first mounting seat, a laser output source, an air tap fixed part and an air tap movable part, the first mounting base is provided with a mounting cavity, and laser output by the laser output source penetrates into the mounting cavity. The air tap fixing piece is arranged on the first installation base and provided with a first cavity, and the first cavity is communicated with the installation cavity. The air tap moving part is movably connected to the air tap fixing part and can move in the axial direction relative to the air tap fixing part. The air tap moving part is provided with a second cavity and an outlet communicated with the second cavity, the second cavity is communicated with the first cavity, the outlet is located at the end, away from the air tap fixing part, of the air tap moving part, and the laser and the airflow entering the air tap moving part are emitted out through the outlet. According to the laser head, the position of the air tap structure can be adjusted, and the air tap moving part can move up and down so as to adapt to different laser processing scenes.

Description

Technical Field

[0001] The present application belongs to the field of laser processing technology, and specifically relates to a laser head and laser processing equipment. Background Art

[0002] Laser processing equipment is widely popular because its laser head doesn't directly contact the workpiece, making it less susceptible to damage. Furthermore, its high laser energy and small spot size contribute to high processing efficiency. A single laser processing device often needs to adapt to multiple scenarios. For example, if a laser processing device needs to be capable of both cutting and engraving, an air nozzle can be added to the laser head to utilize the airflow from the nozzle to assist the laser processing. However, currently, the air nozzle of the laser head must maintain different distances from the workpiece during cutting and engraving. Utility Model Content

[0003] In view of this, the first aspect of the present application provides a laser head, the laser head comprising:

[0004] A first mounting seat having a mounting cavity;

[0005] A laser output source, the output laser penetrating into the mounting cavity;

[0006] An air nozzle fixing member is mounted on the first mounting seat, and the air nozzle fixing member is provided with a first cavity, and the first cavity is communicated with the mounting cavity;

[0007] The air nozzle movable part is movably connected to the air nozzle fixed part and can move axially relative to the air nozzle fixed part; the air nozzle movable part is provided with a second cavity and an outlet connected to the second cavity, the second cavity is communicated with the first cavity, and the outlet is located at the end of the air nozzle movable part away from the air nozzle fixed part, and the laser and the airflow entering the air nozzle movable part are both emitted through the outlet.

[0008] The laser head provided in the first aspect of the present application is constructed by first providing a nozzle fixture, which is mounted on a first mounting seat, and then providing a movable nozzle member. The movable nozzle member is provided with an outlet. Laser light from a laser output source entering the mounting cavity and air flow entering the movable nozzle member can both pass through the first cavity and / or the second cavity and ultimately exit from the outlet. Furthermore, the present application further provides for the movable nozzle member to be movably connected to the nozzle fixture, and for the movable nozzle member to be axially movable relative to the nozzle fixture, i.e., to move up and down, thereby approaching or moving away from the workpiece to be processed.

[0009] In summary, the position of the air nozzle structure in the laser head provided in this application is adjustable, and the movable parts of the air nozzle can be moved up and down to adapt to different laser processing scenarios.

[0010] Wherein, the air nozzle movable part is threadedly connected to the outer side of the air nozzle fixed part; or

[0011] The air nozzle movable part is slidably connected to the outer side of the air nozzle fixing part.

[0012] Wherein, the air nozzle fixing member is provided with an air inlet hole, the air inlet hole is communicated with the first cavity, and the air inlet hole is used to receive air flow; or,

[0013] The air nozzle movable part is provided with an air inlet hole, the air inlet hole is communicated with the second cavity, and the air inlet hole is used to receive air flow.

[0014] Wherein, the laser head further includes an air nozzle locking part, which is provided on the air nozzle fixing part or the air nozzle movable part, and the air nozzle locking part cooperates with the air nozzle movable part to fix the air nozzle movable part.

[0015] The air nozzle locking member is threadedly connected to the air nozzle fixing member and is closer to the first mounting seat than the air nozzle movable member. The air nozzle locking member fixes the air nozzle movable member by pressing against the air nozzle movable member.

[0016] In which, an adjustment port connected to the mounting cavity is provided on the circumferential side of the first mounting seat, and the laser head also includes a collimating lens assembly, which is movably mounted in the mounting cavity. The laser output by the laser output source passes through the collimating lens assembly, and the adjustment port is used for allowing an adjustment member to pass through, so as to drive the collimating lens assembly to move along its optical axis through the adjustment member.

[0017] In which, the collimating lens assembly includes a collimating lens and a collimating adjustment ring, the collimating lens is installed on the collimating adjustment ring, the collimating adjustment ring is movably connected in the mounting cavity, and the collimating adjustment ring is provided with an adjustment portion, the adjustment portion is exposed in the adjustment port, so that the adjustment member can drive the adjustment portion to move and drive the collimating adjustment ring to move along the optical axis direction of the collimating lens.

[0018] Wherein, the laser head further includes a reflector, the mounting cavity includes a first sub-cavity and a second sub-cavity that are connected, the first sub-cavity and the second sub-cavity extending in different directions, the air nozzle fixing member being closer to the second sub-cavity, the reflector being installed in the mounting cavity and being obliquely opposite to the first sub-cavity and the second sub-cavity, and the reflector being used to reflect the laser light after passing through the first sub-cavity to the second sub-cavity; and / or,

[0019] The laser output source includes an optical fiber connector, a second mounting seat, and a protective member. The second mounting seat is mounted on the end of the first mounting seat away from the air nozzle fixing member, and one end of the optical fiber connector is mounted on the end of the second mounting seat away from the first mounting seat. The protective member is mounted on the end of the second mounting seat away from the first mounting seat and covers the optical fiber connector, and is provided with an avoidance hole. The optical fiber connector extends out of the avoidance hole to connect to the optical fiber.

[0020] Wherein, the laser head further includes a focusing lens assembly, the focusing lens assembly including a focusing lens and a fourth fixing member, the focusing lens is provided on the first mounting seat, the fourth fixing member is fixed to the first mounting seat and abuts against the focusing lens; or, the focusing lens is fixed to the fourth fixing member, the fourth fixing member is movably connected in the mounting cavity, and the fourth fixing member can move relative to the first mounting seat along the optical axis direction of the focusing lens; and / or,

[0021] The laser head further comprises a window mirror assembly, which is mounted on the first mounting seat, covers the light outlet of the mounting cavity, and is located in the first cavity.

[0022] A second aspect of the present application provides a laser processing device, which includes the laser head provided in the first aspect of the present application.

[0023] The laser processing equipment provided in the second aspect of the present application adopts the laser head provided in the first aspect of the present application. The position of the nozzle structure is adjustable, and the movable parts of the nozzle can be moved up and down to adapt to different laser processing scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments of the present application will be described below.

[0025] Figure 1 This is an overall front view of the laser head in one embodiment of the present application.

[0026] Figure 2 for Figure 1 An isometric view of the laser head is shown.

[0027] Figure 3 for Figure 1 The overall front exploded view of the laser head is shown.

[0028] Figure 4 for Figure 2 An isometric exploded view of the laser head is shown.

[0029] Figure 5 for Figure 1A cross-sectional view of the laser head is shown.

[0030] Figure 6 for Figure 5 A partial cross-sectional view of the laser head is shown.

[0031] Figure 7 for Figure 5 A cross-sectional exploded view of the laser head is shown.

[0032] Figure 8 Schematic diagram of an exploded view of a first mounting base and a collimating lens assembly in one embodiment of the present application.

[0033] Figure 9 for Figure 8 An exploded view of the first mount and collimating lens assembly is shown.

[0034] Figure 10 This is a cross-sectional view of a laser head according to another embodiment of the present application.

[0035] Figure 11 This is an exploded view of a laser output source in one embodiment of the present application.

[0036] Figure 12 for Figure 5 The optical path conversion cross-sectional view of the laser head is shown.

[0037] Figure 13 for Figure 12 The optical path conversion diagram of the laser head is shown.

[0038] Figure 14 for Figure 13 An isometric view of the optical path transformation of the laser head is shown.

[0039] Description of labels:

[0040] Laser head 1, laser output source 10a, optical fiber connector 10, second mounting seat 11, protective element 12, avoidance hole 120, first mounting seat 20, adjustment port 200, internal thread 201, mounting cavity 202, first sub-cavity 2021, second sub-cavity 2022, light outlet 203, collimating lens assembly 30a, collimating lens 30, collimating adjustment ring 31, adjustment portion 31a, adjustment hole 310, external thread 311, adjustment Lever 312, first fixing member 32, reflector assembly 40a, reflector 40, second fixing member 41, focusing lens assembly 50a, focusing lens 50, fourth fixing member 51, window mirror assembly 60a, window mirror 60, third fixing member 61, air nozzle fixing member 70, air inlet 700, threaded hole 701, first cavity 702, air nozzle movable member 71, outlet 710, second cavity 711, air nozzle locking member 72. DETAILED DESCRIPTION

[0041] The following are preferred implementations of the present application. It should be noted that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

[0042] In view of this, in order to solve the above problems, this application provides a laser head. Please refer to Figures 1 to 7 , Figure 1 This is an overall front view of the laser head in one embodiment of the present application. Figure 2 for Figure 1 An isometric view of the laser head is shown. Figure 3 for Figure 1 The overall front exploded view of the laser head is shown. Figure 4 for Figure 2 An isometric exploded view of the laser head is shown. Figure 5 for Figure 1 A cross-sectional view of the laser head is shown. Figure 6 for Figure 5 A partial cross-sectional view of the laser head is shown. Figure 7 for Figure 5 A cross-sectional exploded view of the laser head is shown.

[0043] The laser head 1 provided in this embodiment includes a first mounting seat 20, a laser output source 10a, a nozzle fixing member 70, and a nozzle movable member 71. The first mounting seat 20 has a mounting cavity 202, into which the laser output from the laser output source 10a passes. The nozzle fixing member 70 is mounted on the first mounting seat 20. The nozzle fixing member 70 is provided with a first cavity 702, which communicates with the mounting cavity 202. The nozzle movable member 71 is movably connected to the nozzle fixing member 70 and is capable of axial movement relative to the nozzle fixing member 70. The nozzle movable member 71 is provided with a second cavity 711 and an outlet 710 connected to the second cavity 711. The second cavity 711 communicates with the first cavity 702. The outlet 710 is located at the end of the nozzle movable member 71 away from the nozzle fixing member 70. The laser and the airflow entering the nozzle movable member 71 are both emitted through the outlet 710.

[0044] The laser head 1 is one of the important components in the laser processing equipment. It is used to make various adjustments to the laser. The laser is finally emitted from the laser head 1. The emitted laser can perform various processing on the workpiece, such as cutting, engraving, welding, etc.

[0045] The first mounting seat 20 is mainly used to mount various lenses and various structural parts of the laser head 1. A mounting cavity 202 for mounting the above-mentioned components is provided in the first mounting seat 20. The laser output from the laser output source 10a can be injected into the mounting cavity 202 of the first mounting seat 20, and transmitted in the mounting cavity 202, and finally emitted from the first mounting seat 20. Optionally, the laser output source 10a can be the light source itself, or it can be a connector or other component connected to the light source. In other words, in one embodiment, the laser head 1 may include a light source, and in other embodiments, the laser head 1 may not include a light source. For the purpose of this application, the laser output source 10a is only schematically illustrated with a connector or other component connected to the light source. As for the specific structure of the laser output source 10a, this application will describe it in detail later. Optionally, the laser includes but is not limited to optical fiber lasers, and in other embodiments, it can also be a semiconductor laser.

[0046] In the related art, the air nozzle structure is directly fixed on the first mounting seat, but in the cutting scenario, the outlet of the air nozzle structure needs to be closer to the workpiece to be processed, while in the engraving scenario, the outlet of the air nozzle structure needs to be farther away from the workpiece to be processed. This causes the laser head in the related art to be unable to adapt to different laser processing scenarios.

[0047] The laser head 1 provided in this embodiment first provides a nozzle fixture 70, which is then mounted directly or indirectly on the first mounting base 20. In other words, the nozzle fixture 70 can be mounted directly on the first mounting base 20 or indirectly via other components. A first cavity 702 is defined within the nozzle fixture 70, communicating with the mounting cavity 202 of the first mounting base 20. Laser light, or the laser light and airflow entering the nozzle fixture 70, can pass through the first cavity 702. Subsequently, a movable nozzle member 71 is provided, which includes a second cavity 711 and an outlet 710. The second cavity 711 communicates not only with the first cavity 702 but also with the outlet 710. Furthermore, the outlet 710 is located at the end of the movable nozzle member 71 away from the nozzle fixture 70, i.e., at the bottom of the movable nozzle member 71. In this way, the laser can pass through the first cavity 702 and the second cavity 711 in sequence and finally be emitted through the outlet 710. The airflow can pass through the second cavity 711, or the first cavity 702 and the second cavity 711 and finally be emitted through the outlet 710, so as to utilize the airflow to assist the laser processing during the laser processing process.

[0048] In addition, this embodiment can also make the air nozzle movable part 71 movably connected to the air nozzle fixed part 70. In other words, the air nozzle movable part 71 is not fixed relative to the air nozzle fixed part 70, but can move relative to the air nozzle fixed part 70. Specifically, the air nozzle movable part 71 can move relative to the air nozzle fixed part 70 along the axial direction of the air nozzle movable part 71, that is, the air nozzle movable part 71 moves up and down, thereby approaching or moving away from the workpiece to be processed.

[0049] In summary, the position of the air nozzle structure in the laser head 1 provided in this embodiment is adjustable, enabling the movable air nozzle member 71 to move up and down to accommodate different laser processing scenarios. Specifically, during laser cutting, the movable air nozzle member 71 can be moved downward, bringing the outlet 710 of the movable air nozzle member 71 closer to the workpiece. During laser engraving, the movable air nozzle member 71 can be moved upward, moving the outlet 710 of the movable air nozzle member 71 further away from the workpiece.

[0050] In this embodiment, the air nozzle movable member 71 is threadedly connected to the outer side of the air nozzle fixed member 70 , or the air nozzle movable member 71 is slidably connected to the outer side of the air nozzle fixed member 70 .

[0051] This application provides two specific implementations regarding the specific arrangement of the air nozzle movable member 71 and the air nozzle fixed member 70. In one implementation, the air nozzle movable member 71 can be threadedly connected to the outer side of the air nozzle fixed member 70, that is, the outer circumference of the air nozzle fixed member 70 is provided with threads, and the inner side wall of the air nozzle movable member 71 is also provided with threads. In this way, the air nozzle movable member 71 can be moved up and down along the axial direction of the air nozzle movable member 71 by rotating the threads, thereby approaching or moving away from the workpiece to be processed. For example, when the air nozzle movable member 71 rotates clockwise, the air nozzle movable member 71 can move downward, and when the air nozzle movable member 71 rotates counterclockwise, the air nozzle movable member 71 can move upward. Adjustment through thread rotation can precisely control the up and down movement of the air nozzle movable member 71 by adjusting the rotational stroke of the air nozzle movable member 71, facilitating precise adjustment of the air nozzle movable member 71.

[0052] In another embodiment, the valve movable member 71 is slidably connected to the outside of the valve fixed member 70. In this case, the valve movable member 71 can be controlled to move up and down directly relative to the valve fixed member 70, reducing the difficulty of movement. Of course, in other embodiments, other methods can be used to achieve the up and down movement of the valve movable member 71, such as gear racks, snaps, magnetic drives, etc.

[0053] In this embodiment, the air nozzle fixed member 70 defines an air inlet hole 700, which communicates with the first cavity 702 and is used to receive airflow. Alternatively, the air nozzle movable member 71 defines an air inlet hole 700, which communicates with the second cavity 711 and is used to receive airflow.

[0054] During operation, the laser head 1 requires airflow into the nozzle structure. In one embodiment, an air inlet 700 communicating with the first cavity 702 can be provided on the nozzle fixture 70. External airflow can enter the first cavity 702 through the air inlet 700, then pass through the second cavity 711, and ultimately exit through the outlet 710. This embodiment is illustrated by only assuming the air inlet 700 is located on the nozzle fixture 70. In another embodiment, an air inlet 700 communicating with the second cavity 711 can be provided on the nozzle movable member 71. External airflow can enter the second cavity 711 through the air inlet 700, and ultimately exit directly through the outlet 710 without passing through the first cavity 702. This embodiment is illustrated by only assuming the air inlet 700 is located on the nozzle fixture 70.

[0055] In summary, whether the air inlet hole 700 is opened on the air nozzle fixed part 70 or the air nozzle movable part 71 , it is convenient to connect the external airflow and make the airflow and laser finally be emitted from the outlet 710 .

[0056] In this embodiment, the laser head 1 further includes a nozzle locking member 72 , which is disposed on the nozzle fixing member 70 or the nozzle movable member 71 . The nozzle locking member 72 cooperates with the nozzle movable member 71 to fix the nozzle movable member 71 .

[0057] In addition to the fixed valve member 70 and the movable valve member 71, the valve structure may also include a valve locking member 72. The valve locking member 72 may be mounted on either the fixed valve member 70 or the movable valve member 71. This embodiment is illustrated as being mounted on the fixed valve member 70. The cooperation between the valve locking member 72 and the movable valve member 71 secures the movable valve member 71 after it has been adjusted vertically, preventing further movement.

[0058] In this embodiment, the air nozzle locking member 72 is threadedly connected to the air nozzle fixing member 70 and is closer to the first mounting seat 20 than the air nozzle movable member 71 . The air nozzle locking member 72 fixes the air nozzle movable member 71 by abutting against the air nozzle movable member 71 .

[0059] When the air nozzle locking member 72 is mounted on the air nozzle fixing member 70, it can be threadedly connected to the air nozzle fixing member 70. The air nozzle locking member 72 is positioned closer to the first mounting seat 20 than the air nozzle movable member 71. In other words, the air nozzle locking member 72 is positioned higher than the air nozzle movable member 71. When the air nozzle locking member 72 is threadedly rotated to abut the air nozzle movable member 71, the axial counterforce between the air nozzle locking member 72 and the air nozzle movable member 71 can achieve double thread locking, further enhancing the securing effect of the air nozzle movable member 71 and preventing the air nozzle movable member 71 from moving after adjustment is completed. Optionally, both the air nozzle locking member 72 and the air nozzle movable member 71 are threadedly connected to the air nozzle fixing member 70.

[0060] In addition, in other embodiments, when the air nozzle locking member 72 is installed on the air nozzle movable member 71, the air nozzle locking member 72 can also fasten the air nozzle movable member 71 to the air nozzle fixed member through various methods such as sliding or threaded rotation, thereby further improving the fixing effect of the air nozzle movable member 71 and preventing the air nozzle movable member 71 from moving after the adjustment is completed.

[0061] Please refer again Figures 1 to 7 In this embodiment, an adjustment port 200 communicating with the mounting cavity 202 is provided on the peripheral side of the first mounting seat 20. The laser head 1 further includes a collimating lens assembly 30a, which is movably mounted in the mounting cavity 202. The laser output from the laser output source 10a passes through the collimating lens assembly 30a. The adjustment port 200 is used for allowing the adjustment member to pass through, so as to drive the collimating lens assembly 30a to move along its optical axis through the adjustment member.

[0062] The first mounting seat 20 is provided with a mounting cavity 202 for mounting various structural components. An adjustment port 200 communicating with the mounting cavity 202 may be provided on the peripheral side of the first mounting seat 20 to provide a basis for subsequent adjustment of the collimating lens assembly 30a.

[0063] The collimating lens assembly 30a is a lens assembly within the laser head 1, mounted within the mounting cavity 202 of the first mounting seat 20. It is primarily used to collimate light, i.e., to collimate the laser light output by the laser output source 10a, ensuring that the light rays propagate parallel to each other. Since the collimating lens assembly 30a may have certain deviations, in order to avoid affecting the collimation of the optical path, the collimating lens assembly 30a needs to be adjusted. In the related art, separate adjustment is usually required, i.e., the collimating lens assembly is disassembled and then adjusted, and then reassembled after adjustment. However, there will be certain errors after assembly, which affects the adjustment accuracy.

[0064] In this embodiment, the collimating lens assembly 30a is movably mounted in the mounting cavity 202, that is, the collimating lens assembly 30a is not fixedly mounted in the mounting cavity 202, but can move in the mounting cavity 202, such as sliding and / or rotating. This allows the collimating lens assembly 30a to move along the optical axis of the collimating lens assembly 30a, thereby achieving the effect of adjusting the collimation of the light path, without having to remove the collimating lens assembly 30a for adjustment. Specifically, in this embodiment, the collimating lens assembly 30a can be driven to move along its optical axis by adopting an adjusting member passing through the adjusting port 200, thereby achieving the effect of adjusting the collimation of the light path. For example, the adjusting member can be connected to the collimating lens assembly 30a after passing through the adjusting port 200. At this time, the collimating lens assembly 30a can be controlled to move along its optical axis by controlling the adjusting member. Optionally, the adjusting member and the collimating lens assembly 30a can be an integrated structure or a split structure.

[0065] In summary, this embodiment can be adjusted in an integrated manner on the assembled laser head 1. In other words, the collimating lens assembly 30a is adjusted in the first mounting seat 20, reducing the deviation caused by reassembly after dimming, effectively increasing the dimming efficiency and reducing the difficulty of dimming.

[0066] In this embodiment, the collimating lens assembly 30a includes a collimating lens 30 and a collimating adjustment ring 31. The collimating lens 30 is installed on the collimating adjustment ring 31. The collimating adjustment ring 31 is movably connected in the mounting cavity 202, and the collimating adjustment ring 31 is provided with an adjustment portion 31a. The adjustment portion 31a is exposed in the adjustment port 200 so that the adjustment member can drive the adjustment portion 31a to move and drive the collimating adjustment ring 31 to move along the optical axis direction of the collimating lens 30.

[0067] The collimating lens assembly 30a primarily comprises a collimating lens 30 and a collimating adjustment ring 31. The collimating lens 30 is primarily used to collimate light, specifically to collimate the laser light outputted by the laser output source 10a, ensuring that the light rays propagate parallel to one another. The collimating adjustment ring 31 is annular in structure, and the collimating lens 30 can be mounted within the collimating adjustment ring 31. The collimating adjustment ring 31 is also mounted within the mounting cavity 202. Therefore, the collimating lens 30 can be mounted within the mounting cavity 202 of the first mounting seat 20 using the collimating adjustment ring 31, facilitating installation of the collimating lens 30.

[0068] In addition, this embodiment allows the collimation adjustment ring 31 to be movably connected to the mounting cavity 202, that is, the collimation adjustment ring 31 can slide and / or rotate within the mounting cavity 202, and an adjustment portion 31a is provided on the circumference of the collimation adjustment ring 31. In this embodiment, the adjustment portion 31a is exposed through the adjustment port 200, so that the adjustment portion 31a can be adjusted through the adjustment port 200 to move the collimating lens assembly 30a along the optical axis. Specifically, the adjustment member can be connected to the adjustment portion 31a after passing through the adjustment port 200. At this time, by controlling the adjustment member, the adjustment portion 31a and the collimation adjustment ring 31 can be controlled to move, thereby driving the collimating lens 30 installed in the collimation adjustment ring 31 to move along its optical axis, thereby achieving the purpose of adjusting the optical path collimation without disassembling the laser head 1. Optionally, the adjustment member and the adjustment portion 31a can be an integrated structure or a split structure.

[0069] Please refer to Figure 8 and Figure 9 , Figure 8 Schematic diagram of an exploded view of a first mounting base and a collimating lens assembly in one embodiment of the present application. Figure 9 for Figure 8 An exploded view of the first mounting seat and collimating lens assembly is shown. In this embodiment, the collimating adjustment ring 31 is threadedly connected to the mounting cavity 202. In this embodiment, the collimating adjustment ring 31 can be directly threaded into the mounting cavity 202. As a result, when the adjustment portion 31a is adjusted, the collimating adjustment ring 31 can rotate along the thread 201 within the mounting cavity 202. In other words, the collimating adjustment ring 31 can not only rotate relative to the first mounting seat 20, but also slide relative to the first mounting seat 20, thereby enabling the collimating adjustment ring 31 to drive the collimating lens 30 to move along its optical axis.

[0070] Therefore, this embodiment can precisely control the sliding travel of the collimation adjustment ring 31 and the collimation lens 30 by controlling the rotational travel of the collimation adjustment ring 31, thereby facilitating precise adjustment of the collimation lens 30. Optionally, when the collimation adjustment ring 31 rotates clockwise, the collimation adjustment ring 31 and the collimation lens 30 move rightward. When the collimation adjustment ring 31 rotates counterclockwise, the collimation adjustment ring 31 and the collimation lens 30 move leftward.

[0071] In addition, in other embodiments, the collimation adjustment ring 31 may be directly slidably connected to the mounting cavity 202 . In this case, when the adjustment portion 31 a is adjusted, the collimation adjustment ring 31 and the collimating lens 30 may be directly moved along the optical axis.

[0072] In this embodiment, along the optical axis, the length of the internal thread 201 of the mounting cavity 202 is greater than the length of the external thread 311 of the collimation adjustment ring 31. The inner circumferential sidewall of the mounting cavity 202 is provided with an internal thread 201, while the outer circumferential sidewall of the collimation adjustment ring 31 is provided with an external thread 311. The internal thread 201 and the external thread 311 cooperate to thread the collimation adjustment ring 31 into the mounting cavity 202. The collimation adjustment ring 31 can be moved along the optical axis of the collimating lens 30 as the threads rotate.

[0073] Furthermore, along the optical axis, this embodiment allows the length of the internal thread 201 region to be greater than the length of the external thread 311 region, thereby enabling the collimating adjustment ring 31 to move along the internal thread 201 region with the collimating lens 30. In other words, the length of the internal thread 201 region is the travel of the collimating adjustment ring 31. This embodiment allows the travel distance of the collimating adjustment ring 31 to be controlled by controlling the length of the internal thread 201.

[0074] Please refer to Figures 8 to 10 , Figure 10 This is a cross-sectional view of a laser head according to another embodiment of the present application. In this embodiment, the adjustment portion 31a includes a plurality of adjustment holes 310 disposed on the outer periphery of the collimating adjustment ring 31. The plurality of adjustment holes 310 at least partially surround the collimating lens 30, and at least a portion of the plurality of adjustment holes 310 is exposed through the adjustment opening 200. Alternatively, the adjustment portion 31a includes an adjustment lever 312 that extends from the adjustment opening 200.

[0075] Regarding the specific structure of the adjustment portion 31a, this application provides two specific embodiments. In one embodiment, the adjustment portion 31a may include a plurality of adjustment holes 310 opened on the outer periphery of the collimating adjustment ring 31. The plurality of adjustment holes 310 at least partially surround the collimating lens 30, and at least a portion of the plurality of adjustment holes 310 is exposed to the adjustment port 200. In this case, an additional rod-shaped adjustment portion 31a, such as a needle or thin rod, can be inserted into the adjustment hole 310 through the adjustment port 200. The adjustment hole 310 is then moved to rotate the thread of the collimating adjustment ring 31, thereby causing the collimating lens assembly 30a including the collimating lens 30 to move along the optical axis of the collimating lens 30 as a whole, thereby achieving the function of adjusting the optical path collimation. Therefore, in this embodiment, holes can be machined on the assembled collimating lens assembly 30a, and the adjustment hole 310 can be adjusted by an additional adjustment portion 31a. It is worth noting that in this embodiment, the adjustment portion 31a is the adjustment member mentioned above, and in this case, the adjustment member and the adjustment portion 31a are a separate structure. When the collimating lens 30 needs to be adjusted, the adjusting member is passed through the adjusting port 200 and contacts the adjusting portion 31 a . When the adjustment of the collimating lens 30 is completed, the adjusting member is removed.

[0076] In another embodiment, the adjustment portion 31a may further include an adjustment lever 312 protruding from the outer peripheral side of the collimation adjustment ring 31. The adjustment lever 312 may extend all the way to the outside of the adjustment port 200, so that the adjustment lever 312 protrudes from the adjustment port 200. The user may directly swing the adjustment lever 312 to rotate the thread of the collimation adjustment ring 31, and at the same time, move the collimating lens assembly 30a including the collimating lens 30 as a whole along the optical axis direction of the collimating lens 30, thereby achieving the function of adjusting the collimation of the light path. Therefore, in this embodiment, the adjustment of the collimating lens 30 can be completed by directly swinging the adjustment lever 312 extending from the adjustment port 200 on the assembled collimating lens assembly 30a. It is worth noting that in this embodiment, the adjustment lever 312 is the adjustment member mentioned above, and the adjustment member and the adjustment portion 31a may be an integrated structure or a split structure.

[0077] In this embodiment, the adjustment portion 31 a includes multiple rows of adjustment holes 310 arranged along the optical axis, and each row of adjustment holes 310 includes multiple adjustment holes 310 arranged along the circumferential direction of the collimation adjustment ring 31 .

[0078] When an adjustment portion 31a with adjustment holes 310 is used, the adjustment portion 31a includes multiple rows of adjustment holes 310 formed on the outer circumference of the alignment adjustment ring 31. These rows of adjustment holes 310 are arranged along the optical axis. Each row of adjustment holes 310 includes multiple adjustment holes 310 along the circumference of the alignment adjustment ring 31. This embodiment arranges multiple adjustment holes 310 in an array, providing not only adjustment holes 310 circumferentially but also axially. The circumferential arrangement of the adjustment holes 310 allows the external adjustment portion 31a to be sequentially inserted into the multiple adjustment holes 310, each rotated a small angle each time. This allows the alignment adjustment ring 31 to rotate a larger angle overall, reducing the difficulty of adjusting the alignment adjustment ring 31 and the optical path alignment. Furthermore, the multiple adjustment holes 310 arranged axially also reduce the difficulty of inserting the adjustment member into the adjustment holes 310, thereby reducing the difficulty of adjusting the alignment adjustment ring 31. At the same time, after the adjustment holes 310 on the collimation adjustment ring 31 are moved to the outside of the adjustment opening 200 , adjustment can be continued by moving the adjustment holes 310 in other rows.

[0079] In this embodiment, the collimating lens assembly 30 a further includes a first fixing member 32 . The first fixing member 32 is fixed to the collimating adjustment ring 31 and abuts against the collimating lens 30 .

[0080] In the related art, debugging the optical path requires professional dimming jigs and structures. The market requires three or more structural parts to ensure the concentricity of the lens, and the adjustment scheme requires additional components for adjustment. In this embodiment, double-sided clamping is used to utilize the self-centering effect of the arc, and only two components are needed to achieve concentricity. Specifically, the collimating lens assembly 30a can also include a first fixing member 32 in addition to the collimating lens 30 and the collimating adjustment ring 31. The collimating lens 30 can be installed inside the collimating adjustment ring 31 first, and at this time, one side of the collimating lens 30 can be abutted against the collimating adjustment ring 31. Then the first fixing member 32 can be fixed to the other side of the collimating adjustment ring 31, and the other side of the collimating lens 30 can be abutted against the first fixing member 32. In this way, the collimating lens 30 can be fixed only by the two components of the collimating adjustment ring 31 and the first fixing member 32.

[0081] Optionally, the first fixing member 32 fixes the collimating lens 30 and the collimating adjustment ring 31 in a threaded manner to form a collimating lens assembly 30 a , which facilitates subsequent collimation of the light path.

[0082] The laser head 1 may also include a variety of other lens components in addition to the collimating lens assembly 30a, which will be introduced one by one in the following application. Figures 3 to 7 In this embodiment, the laser head 1 also includes a reflector 40, the mounting cavity 202 includes a first sub-cavity 2021 and a second sub-cavity 2022 that are connected, the first sub-cavity 2021 and the second sub-cavity 2022 extend in different directions, the air nozzle fixing member 70 is closer to the second sub-cavity 2022, the reflector 40 is installed in the mounting cavity 202, and is tilted relative to the first sub-cavity 2021 and the second sub-cavity 2022. The reflector 40 is used to reflect the laser light after passing through the first sub-cavity 2021 to the second sub-cavity 2022.

[0083] The mounting cavity 202 of the first mounting seat 20 includes two interconnected subcavities: a first subcavity 2021 and a second subcavity 2022. The first subcavity 2021 and the second subcavity 2022 extend in different directions. For example, the first mounting seat 20 includes two interconnected subcavities, one horizontal and one vertical. The horizontal subcavity is the first subcavity 2021, and the vertical subcavity is the second subcavity 2022. In this case, the first subcavity 2021 and the second subcavity 2022 are arranged at a 90° angle, and the first mounting seat 20 as a whole is arranged at a 90° angle. The nozzle fixture 70 is closer to the second subcavity 2022 than the first subcavity 2021, allowing the laser beam to be emitted through the nozzle fixture 70 and other structures after adjustment.

[0084] In one embodiment, the laser head 1 may further include a reflector assembly 40a, which includes a reflector 40. The reflector 40 is used to reflect the laser light. The reflector 40 is mounted within the mounting cavity 202 of the first mounting base 20 and is obliquely opposed to both the first sub-cavity 2021 and the second sub-cavity 2022. In other words, the reflector 40 may be positioned at the bend connecting the two sub-cavities. After the laser light enters the horizontal first sub-cavity 2021, it is reflected by the reflector 40 and then into the vertical second sub-cavity 2022.

[0085] The laser head in the related art has a straight-through structure, that is, the laser light input direction is consistent with the light output direction. In addition, the optical fiber requires a certain bending radius, which results in a relatively high height of the laser head. In this embodiment, a reflector 40 can be added, wherein the reflector 40 can be installed at the bend connecting the first sub-cavity 2021 and the second sub-cavity 2022. Through the above arrangement, after the laser is collimated by the collimating lens 30, it can be incident on the reflector 40 and reflected on the reflector 40. The reflected laser light is then emitted toward the outside of the first mounting seat 20. In this way, the laser light entering the first mounting seat 20 can be set at an angle to the laser light emitted from the first mounting seat 20, thereby reducing the height of the entire laser head 1.

[0086] Optionally, the laser incident on the first mounting seat 20 and the laser emitted from the first mounting seat 20 may be set at an acute angle, a right angle, or an obtuse angle. This embodiment is only schematically illustrated by setting the laser incident on the first mounting seat 20 and the laser emitted from the first mounting seat 20 perpendicularly. For example, on the basis of the first sub-cavity 2021 and the second sub-cavity 2022 being 90° so that the first mounting seat 20 as a whole is set at 90°, the laser incident on the first mounting seat 20 is set horizontally, so that the laser is incident in the horizontal direction. Subsequently, the reflector 40 is set at 45°, and the laser is emitted in a vertical direction after being reflected by the reflector 40, that is, it is emitted into the second sub-cavity 2022, and finally the laser light input direction and the light output direction are set at 90°, forming a 90° light output structure, further reducing the height requirement.

[0087] Optionally, the reflector 40 can be directly installed in the first mounting seat 20. For example, the first mounting seat 20 is provided with a circular groove corresponding to the reflector 40, and the reflector 40 can be provided in the circular groove to ensure alignment with the center of the front laser. Further optionally, the reflector assembly 40a can also include a second fixing member 41, which is fixed to the first mounting seat 20 and is used to abut and fix the reflector 40. For example, when the reflector 40 is provided in the circular groove, the groove wall of the circular groove can abut one side of the reflector 40. The second fixing member 41 is fixed in the circular groove and abuts the other side of the reflector 40, so that the opposite sides of the reflector 40 abut against the first mounting seat 20 and the second fixing member 41 respectively, ensuring that the reflector 40 will not fall off or move. Further optionally, the second fixing member 41 is fixedly assembled with the first mounting seat 20 in the form of a threaded connection.

[0088] In this embodiment, the laser head 1 further includes a window mirror assembly 60 a . The window mirror assembly 60 a is mounted on the first mounting seat 20 and covers the light outlet 203 of the mounting cavity 202 . The window mirror assembly 60 a is located in the first cavity 702 .

[0089] The laser head 1 may also include a window mirror assembly 60a, which can be installed in the first mounting seat 20 and cover the light outlet 203 of the mounting cavity 202, thereby sealing the mounting cavity 202 and preventing external dust, impurities, etc. from entering the mounting cavity 202. Optionally, the window mirror assembly 60a includes a window mirror 60, and the window mirror 60 can be directly installed on the first mounting seat 20. Further optionally, the window mirror assembly 60a also includes a third fixing member 61, and the window mirror 60 can be fixed to the third fixing member 61 by various means such as bonding, clamping, etc., and then the third fixing member 61 is fixedly connected to the first mounting seat 20. The window mirror 60 is located at the end of the optical path and can protect other lenses such as the focusing lens 50. Further optionally, the third fixing member 61 is assembled with the first mounting seat 20 by threads, which can be easily disassembled and replaced.

[0090] Furthermore, in this embodiment, the air nozzle fixing member 70 can be fixed to the third fixing member 61, thereby achieving indirect assembly of the air nozzle fixing member 70 and the first mounting base 20. Specifically, the air nozzle fixing member 70 has a threaded hole 701, which can be fixed to the third fixing member 61 with a screw.

[0091] In this embodiment, the laser head 1 further includes a focusing lens assembly 50a, which includes a focusing lens 50 and a fourth fixing member 51. The focusing lens 50 is disposed on the first mounting seat 20, and the fourth fixing member 51 is fixed to the first mounting seat 20 and abuts against the focusing lens 50. Alternatively, the focusing lens 50 is fixed to the fourth fixing member 51, which is movably connected within the mounting cavity 202, and can move relative to the first mounting seat 20 along the optical axis of the focusing lens 50.

[0092] In some embodiments, the laser head 1 may also include a focusing lens assembly 50a, which includes a focusing lens 50. The focusing lens 50 is installed in the first mounting seat 20, and the laser passing through the collimating lens 30 can pass through the focusing lens 50 and be focused. The focusing lens 50 is mainly used to focus the laser to form a high-energy converged laser beam. The focusing lens 50 is installed at the bottom plane of the second sub-cavity 2022 of the mounting cavity 202, which has a circular groove corresponding to the focusing lens 50, which can ensure alignment with the center of the front optical path. It is installed behind the collimating lens 30 on the optical path, specifically behind the reflector 40. In this way, the laser passing through the collimating lens 30 can pass through the focusing lens 50 and be focused after being reflected by the reflector 40, converging the light to one point, providing a good foundation for subsequent laser processing.

[0093] In this embodiment, in addition to the focusing lens 50, the laser head 1 may also include a fourth fixing member 51. The fourth fixing member 51 is fixed to the first mounting seat 20 and is used to abut and secure the focusing lens 50. For example, when the focusing lens 50 is positioned in a circular groove, the groove wall of the circular groove may abut one side of the focusing lens 50. The fourth fixing member 51 is fixed within the circular groove and abuts the other side of the focusing lens 50. In this way, opposite sides of the focusing lens 50 abut the first mounting seat 20 and the fourth fixing member 51, respectively, ensuring that the focusing lens 50 does not fall off or move. Furthermore, optionally, the fourth fixing member 51 is fixedly assembled to the first mounting seat 20 using a threaded connection.

[0094] Alternatively, the focusing lens 50 and the fourth fixing member 51 can be fixed as a single assembly using various methods, such as bonding or snap-fitting. Furthermore, the fourth fixing member 51 is movably connected within the mounting cavity 202, allowing the fourth fixing member 51 to move up and down relative to the first mounting seat 20 along the optical axis of the focusing lens 50, thereby adjusting the focus of the laser. Alternatively, the fourth fixing member 51 can also be threadedly assembled with the first mounting seat 20, thereby mounting the focusing lens 50 on the first mounting seat 20, and rotating the fourth fixing member 51 threadedly allows the focusing lens 50 to move up and down along its optical axis. Alternatively, in other embodiments, the fourth fixing member 51 can be directly slidably connected within the first mounting seat 20, directly allowing the fourth fixing member 51 and the focusing lens 50 to move up and down.

[0095] Please refer to Figures 1 to 7 ,as well as Figure 11 , Figure 11 This is an exploded view of a laser output source in one embodiment of the present application. In this embodiment, the laser output source 10a includes a fiber optic connector 10, a second mounting base 11, and a protective member 12. The second mounting base 11 is mounted on the end of the first mounting base 20 facing away from the nozzle fixture 70. One end of the fiber optic connector 10 is mounted on the end of the second mounting base 11 away from the first mounting base 20. The protective member 12 is mounted on the end of the second mounting base 11 away from the first mounting base 20 and covers the fiber optic connector 10. A relief hole 120 is defined, through which the fiber optic connector 10 extends to connect to the optical fiber.

[0096] In this embodiment, the laser output source 10a serves as a connector assembly for connecting a light source and primarily includes a fiber optic connector 10, a second mounting base 11, and a protective member 12. The second mounting base 11 primarily serves to provide a secure mounting base for the fiber optic connector 10 and the protective member 12. The second mounting base 11 can be mounted on the end of the first mounting base 20 facing away from the nozzle fixture 70. In other words, the second mounting base 11 is further away from the nozzle fixture 70 than the first mounting base 20. Laser light first enters the first mounting base 20, then the nozzle fixture 70, and ultimately exits through the outlet 710 of the movable nozzle member 71.

[0097] The optical fiber connector 10 is primarily used to connect optical fibers. One end of the optical fiber can be connected to a light source, and the other end is connected to the optical fiber connector 10. The light source is used to generate laser light, which is injected into the optical fiber and then emitted through the optical fiber connector 10. The optical fiber connector 10 can be mounted on the end of the second mounting base 11 that is farther away from the first mounting base 20. In other words, the optical fiber connector 10 is further away from the first mounting base 20 than the second mounting base 11. This allows the laser light emitted from the optical fiber connector 10 to pass through the second mounting base 11 and reach the collimating lens 30 in the first mounting base 20.

[0098] The protective member 12 is mounted on the end of the second mounting seat 11 that is farther away from the first mounting seat 20. This means that the protective member 12 is further away from the first mounting seat 20 than the second mounting seat 11. Mounting the protective member 12 on the second mounting seat 11 while simultaneously covering the optical fiber connector 10 protects the optical fiber connector 10. Furthermore, a clearance hole 120 may be provided in the protective member 12, allowing the other end of the optical fiber connector 10 to extend through the clearance hole 120 and protrude outside the protective member 12, thereby facilitating optical fiber connection.

[0099] In this embodiment, the circumferential shapes of the second mounting seat 11, the protective member 12, and the optical fiber connector 10 are all circular. Because all three components are circular, high concentricity is achieved when the optical fiber connector 10 is assembled with the second mounting seat 11, and when the second mounting seat 11 is assembled with the protective member 12, i.e., when the two are assembled, this improves assembly accuracy and reduces the difficulty of debugging later due to optical path deviation.

[0100] Furthermore, conventional fiber laser heads currently on the market primarily utilize large-core optical fibers for high-power applications and are used for composite welding of highly reflective materials. These laser heads utilize infrared light sources, resulting in a large spot diameter. This results in larger lenses and supporting components, making the overall machine bulky and heavy. This places a significant burden on high-speed motion platforms, leading to suboptimal engraving patterns, complex structures, and high costs. In this embodiment, a blue light source is used for low-power applications, resulting in a smaller spot diameter. This results in smaller lenses and supporting components, resulting in a compact and lightweight machine.

[0101] Please refer to Figures 12 to 14 , Figure 12 for Figure 5 The optical path conversion cross-sectional view of the laser head is shown. Figure 13 for Figure 12 The optical path conversion diagram of the laser head is shown. Figure 14 for Figure 13 The optical path conversion isometric diagram of the laser head shown. This application also provides a complete optical path design scheme. Specifically, laser light is emitted from the optical fiber connector 10 into the first mounting seat 20, collimated by the collimating lens 30, reflected by the reflector 40, then focused by the focusing lens 50, and then passed through the window mirror 60. Finally, it is emitted through the outlet 710 on the movable part of the air nozzle 71, coaxial with the airflow entering from the air inlet 700, completing the optical path conversion and focusing process.

[0102] In summary, this application provides a complete optical path design solution and optical-mechanical structure assembly design. Under the same conditions, this application can use fewer lenses with the same effective spot size, and dimming is easier, which can effectively increase dimming efficiency and reduce dimming difficulty.

[0103] This embodiment provides a laser processing device, which includes the laser head provided in the above embodiment of the present application.

[0104] The laser processing equipment can be laser cutting processing equipment, laser welding processing equipment, laser engraving processing equipment, etc., which uses the laser to interact with the workpiece to be processed to achieve various processing of the workpiece to be processed. The laser processing equipment provided in this embodiment may also include other structures in addition to the laser head, such as a workbench, a drive structure, a housing, etc. The workbench is used to place the workpiece to be processed, and the drive structure connects the workbench and the laser head. The drive structure is used to drive the laser head and the workbench to produce relative displacement, so that the laser emitted by the laser head can be shot to different positions of the workpiece to be processed on the workbench to achieve laser processing. The housing can be used to wrap the laser head, the workbench and the drive structure. The housing can also open or close the processing space in the laser processing equipment to place or remove the workpiece to be processed, and prevent impurities from flying out of the laser processing equipment during processing. The laser processing equipment provided in this embodiment adopts the laser head provided in the above embodiment of this application. The position of the air nozzle structure is adjustable, and the movable part of the air nozzle can be moved up and down to adapt to different laser processing scenarios.

[0105] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0106] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0107] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to connection, detachable connection, or integration. They may refer to mechanical connection or electrical connection. They may refer to direct connection or indirect connection through an intermediary. They may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0108] The above details the contents provided in the embodiments of the present application, and illustrates and describes the principles and embodiments of the present application. These explanations are only intended to help understand the method and core concept of the present application. However, the contents of this specification should not be construed as limiting the present application. Those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present application. Such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents.

Claims

1. A laser head, characterized in that: The laser head comprises: A first mounting seat having a mounting cavity; A laser output source, the output laser penetrating into the mounting cavity; An air nozzle fixing member is mounted on the first mounting seat, and the air nozzle fixing member is provided with a first cavity, and the first cavity is communicated with the mounting cavity; The air nozzle movable part is movably connected to the air nozzle fixed part and can move axially relative to the air nozzle fixed part; the air nozzle movable part is provided with a second cavity and an outlet connected to the second cavity, the second cavity is communicated with the first cavity, and the outlet is located at the end of the air nozzle movable part away from the air nozzle fixed part, and the laser and the airflow entering the air nozzle movable part are both emitted through the outlet.

2. The laser head according to claim 1, wherein: The gas nozzle movable part is threadedly connected to the outer side of the gas nozzle fixed part; or The air nozzle movable part is slidably connected to the outer side of the air nozzle fixing part.

3. The laser head according to claim 1, wherein: The air nozzle fixing member is provided with an air inlet hole, the air inlet hole is communicated with the first cavity, and the air inlet hole is used to receive air flow; or, The air nozzle movable part is provided with an air inlet hole, the air inlet hole is communicated with the second cavity, and the air inlet hole is used to receive air flow.

4. The laser head according to claim 1, wherein: The laser head further includes an air nozzle locking component, which is provided on the air nozzle fixing component or the air nozzle movable component. The air nozzle locking component cooperates with the air nozzle movable component to fix the air nozzle movable component.

5. The laser head according to claim 4, wherein: The air nozzle locking member is threadedly connected to the air nozzle fixing member and is closer to the first mounting seat than the air nozzle movable member. The air nozzle locking member fixes the air nozzle movable member by pressing against the air nozzle movable member.

6. The laser head according to any one of claims 1 to 5, characterized in that: An adjustment port connected to the mounting cavity is provided on the peripheral side of the first mounting seat. The laser head also includes a collimating lens assembly, which is movably mounted in the mounting cavity. The laser output from the laser output source passes through the collimating lens assembly. The adjustment port is used for allowing an adjustment member to pass through, so as to drive the collimating lens assembly to move along its optical axis through the adjustment member.

7. The laser head according to claim 6, wherein: The collimating lens assembly includes a collimating lens and a collimating adjustment ring. The collimating lens is installed on the collimating adjustment ring. The collimating adjustment ring is movably connected in the mounting cavity, and the collimating adjustment ring is provided with an adjustment portion. The adjustment portion is exposed in the adjustment port so that the adjustment member can drive the adjustment portion to move and drive the collimating adjustment ring to move along the optical axis direction of the collimating lens.

8. The laser head according to any one of claims 1 to 5, characterized in that: The laser head further includes a reflector. The mounting cavity includes a first sub-cavity and a second sub-cavity that are connected. The first sub-cavity and the second sub-cavity extend in different directions. The air nozzle fixing member is closer to the second sub-cavity. The reflector is installed in the mounting cavity and is obliquely opposite to the first sub-cavity and the second sub-cavity. The reflector is used to reflect the laser light after passing through the first sub-cavity to the second sub-cavity. and / or, The laser output source includes an optical fiber connector, a second mounting seat, and a protective member. The second mounting seat is mounted on the end of the first mounting seat away from the air nozzle fixing member, and one end of the optical fiber connector is mounted on the end of the second mounting seat away from the first mounting seat. The protective member is mounted on the end of the second mounting seat away from the first mounting seat and covers the optical fiber connector, and is provided with an avoidance hole. The optical fiber connector extends out of the avoidance hole to connect to the optical fiber.

9. The laser head according to any one of claims 1 to 5, characterized in that: The laser head further includes a focusing lens assembly, which includes a focusing lens and a fourth fixing member, wherein the focusing lens is disposed on the first mounting seat, and the fourth fixing member is fixed to the first mounting seat and abuts against the focusing lens; or, the focusing lens is fixed to the fourth fixing member, the fourth fixing member is movably connected in the mounting cavity, and the fourth fixing member can move relative to the first mounting seat along the optical axis direction of the focusing lens; and / or, The laser head further comprises a window mirror assembly, which is mounted on the first mounting seat, covers the light outlet of the mounting cavity, and is located in the first cavity.

10. A laser processing device, characterized in that: The laser processing equipment includes the laser head according to any one of claims 1 to 9.

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