Laser processing head and laser processing equipment

Abstract

The present invention discloses a laser processing head and laser processing equipment, belonging to the field of laser processing technology. The laser processing equipment includes a laser processing head. The laser processing head includes a collimating protective mirror assembly, a collimating mirror assembly, a focusing mirror assembly, a focusing protective mirror assembly, and also includes a shell. A through laser beam channel is provided from one end to the other end in the shell, and the side surface of the shell is sequentially spaced along the extension direction of the laser beam channel. The collimating protective mirror assembly is arranged in the first mounting groove, the collimating mirror assembly is arranged in the second mounting groove, the focusing mirror assembly is arranged in the third mounting groove, and the focusing protective mirror assembly is arranged in the fourth mounting groove, and the notches of the first mounting groove, the second mounting groove, the third mounting groove and the fourth mounting groove are all blocked. The present invention is easy to assemble and can improve the sealing performance, thereby reducing the damage to the lens caused by dust entering and contaminating the lens.

Description

Technical Field

[0001] The present invention relates to the field of laser processing technology, and in particular to a laser processing head and laser processing equipment. Background Art

[0002] The laser processing heads on the market are mainly composed of collimating lens components, focusing lens components and nozzles. The components are spliced ​​and assembled, and the assembly is complicated. In order to ensure the overall assembly accuracy, it is necessary to improve the manufacturing accuracy of each part, and the assembly requirements are relatively high, which requires more time and effort during assembly. In addition, the sealing effect of the joints of the various components is poor, which can easily cause dust to enter the interior of the laser processing head and damage the internal lenses. Summary of the invention

[0003] The purpose of the present invention is to provide a laser processing head which can reduce the difficulty of assembly and improve the sealing performance.

[0004] Another object of the present invention is to provide a laser processing device, the laser processing head of which is easy to assemble and has good sealing performance.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A laser processing head comprises a collimating protective lens assembly, a collimating lens assembly, a focusing lens assembly, a focusing protective lens assembly, and a shell;

[0007] A through laser beam channel is provided in the shell from one end to the other end, and a first mounting groove, a second mounting groove, a third mounting groove and a fourth mounting groove are sequentially spaced apart on the side surface of the shell along the extension direction of the laser beam channel;

[0008] The collimating protection lens assembly is arranged in the first mounting groove, the collimating lens assembly is arranged in the second mounting groove, the focusing lens assembly is arranged in the third mounting groove, the focusing protection lens assembly is arranged in the fourth mounting groove, and the slots of the first mounting groove, the second mounting groove, the third mounting groove and the fourth mounting groove are all blocked.

[0009] Optionally, the shell is integrally formed.

[0010] Optionally, the collimator lens assembly comprises:

[0011] A collimating lens barrel, wherein a collimating lens is arranged in the collimating lens barrel, and the collimating lens barrel is arranged in the second mounting groove;

[0012] A collimating drawer seat, the collimating drawer seat is connected to the collimating lens barrel, the collimating drawer seat is detachably connected to the notch of the second mounting groove and can block the notch of the second mounting groove;

[0013] A first moving structure, wherein the first moving structure can drive the collimating lens barrel to move in the second mounting groove along an axial direction perpendicular to the laser beam channel.

[0014] Optionally, the collimating drawer seat is connected to the collimating lens barrel via the first moving structure, and the first moving structure comprises:

[0015] A driving member connected to the alignment drawer seat;

[0016] A spring sheet, the spring sheet being arranged at the bottom of the second mounting slot;

[0017] When force is applied to the driving member, the driving member can push the collimating lens barrel toward the bottom side of the second mounting slot, and the collimating lens barrel can squeeze the spring sheet so that the spring sheet pushes the collimating lens barrel to move.

[0018] Optionally, a connecting arm is provided on one side of the collimating drawer seat close to the collimating lens barrel, and the driving member comprises:

[0019] Two top blocks, one end of each of the top blocks is connected to the connecting arm via a rotating shaft, and the other ends of the two top blocks are respectively located on both sides of the collimating lens barrel and can abut against the collimating lens barrel;

[0020] Two top screws, each of which corresponds to one top block, penetrate the alignment drawer seat from the outside of the second installation groove to the inside and can abut against the top block to drive the top block to rotate around the rotating shaft.

[0021] Optionally, a second movable structure is further included, the focusing lens assembly includes a focusing lens barrel, a focusing lens is arranged inside the focusing lens barrel, and the second movable structure can drive the focusing lens barrel to move along the axial direction of the laser beam channel.

[0022] Optionally, the second mobile structure includes:

[0023] A mounting shell, the mounting shell is arranged on one side of the housing and can block a notch of the third mounting slot;

[0024] A transmission member is disposed in the mounting shell, the transmission member comprises a screw rod, and a nut on the screw rod is connected to the focusing lens barrel through a connecting plate;

[0025] A power source is disposed in the mounting shell, and the power source can drive the screw to rotate.

[0026] Optionally, the second moving structure further includes a guide member, which is disposed in the third mounting groove and is used to guide the focusing lens barrel when it moves.

[0027] Optionally, a water cooling system is further included, and the water cooling system includes:

[0028] A water inlet channel, the water inlet channel is opened in the shell and passes through the collimating protective lens assembly, the collimating lens assembly, and the focusing lens assembly in sequence, and the end of the water inlet channel corresponds to the focusing protective lens assembly;

[0029] A water outlet channel, the water outlet channel is opened in the shell and passes through the focusing lens assembly, the collimating lens assembly and the collimating protective lens assembly in sequence, and the water inlet of the water outlet channel corresponds to the focusing protective lens assembly;

[0030] Wherein, the end of the water inlet channel is connected to the water inlet of the water outlet channel.

[0031] A laser processing device comprises the above-mentioned laser processing head.

[0032] The beneficial effects of the present invention are:

[0033] The present invention comprises a collimating protective mirror assembly, a collimating mirror assembly, a focusing mirror assembly, a focusing protective mirror assembly and a shell. A through laser beam channel is provided in the shell from one end to the other end. A first mounting groove, a second mounting groove and a third mounting groove are sequentially spaced apart on the side surface of the shell along the extension direction of the laser beam channel. The collimating protective mirror assembly is arranged in the first mounting groove, the collimating mirror assembly is arranged in the second mounting groove, the focusing mirror assembly is arranged in the third mounting groove and the focusing mirror assembly is arranged in the fourth mounting groove. Direct splicing and assembly among the collimating protective mirror assembly, the collimating mirror assembly, the focusing mirror assembly and the focusing protective mirror assembly is avoided, the installation of each assembly is convenient, and the assembly accuracy is ensured. Moreover, the notches of the first mounting groove, the second mounting groove, the third mounting groove and the fourth mounting groove are all blocked, so the sealing performance can be improved, thereby reducing the damage to the lens caused by dust entering and contaminating the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic diagram of the three-dimensional structure of a laser processing head provided in a specific embodiment of the present invention;

[0035] Figure 2 It is a schematic diagram of the three-dimensional structure of the shell of the laser processing head provided in a specific embodiment of the present invention;

[0036] Figure 3 is a schematic diagram of the three-dimensional structure of the housing of the laser processing head provided by a specific embodiment of the present invention from another perspective;

[0037] Figure 4 It is a schematic diagram of the three-dimensional structure of the collimating lens assembly of the laser processing head provided in a specific embodiment of the present invention;

[0038] Figure 5 It is a schematic diagram of the exploded structure of the collimating lens assembly of the laser processing head provided in a specific embodiment of the present invention;

[0039] Figure 6 It is a schematic diagram of the exploded structure of the collimation drawer seat and the top screw of the laser processing head provided by the specific embodiment of the present invention;

[0040] Figure 7 is a schematic side view of the structure of a laser processing head provided in a specific embodiment of the present invention;

[0041] Figure 8 yes Figure 7 Schematic diagram of the cross-sectional structure at AA in the middle;

[0042] Fig. 9 It is a structural schematic diagram of the second movable structure of the laser processing head provided by a specific embodiment of the present invention after removing part of the mounting shell and the focusing lens assembly.

[0043] In the figure:

[0044] 1. Optical fiber connection assembly; 2. Collimation protection mirror assembly; 3. Collimation mirror assembly; 31. First moving structure; 311. Shrapnel; 312. Driving member; 3121. Top block; 3122. Top screw; 32. Collimation drawer seat; 321. Connecting arm; 3211. First connecting arm; 3212. Second connecting arm; 33. Collimation lens barrel; 331. Pan seal; 4. Shell; 41. Laser beam channel; 42. First mounting slot; 43. Second mounting slot; 44. Fourth mounting slot; 45. Third mounting slot; 5. Focusing protection mirror assembly; 6. Nozzle; 7. Second moving structure; 71. Power source; 72. Mounting shell; 73. Transmission member; 74. Connecting plate; 75. Guide member; 731. Nut; 732. Screw rod; 733. Support seat; 8. Focusing mirror assembly; 9. Water cooling system; 91. Water inlet channel; 92. Water outlet channel. DETAILED DESCRIPTION

[0045] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0046] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] The following is combined with Figure 1-9 The technical solution of the present invention is further illustrated by specific implementation methods.

[0049] This embodiment provides a laser processing device, which includes a laser processing head. Figures 1 to 3 As shown, the laser processing head includes a collimating protective lens assembly 2 , a collimating lens assembly 3 , a focusing lens assembly 8 , a focusing protective lens assembly 5 , and also includes a shell 4 .

[0050] A through laser beam passage 41 is provided in the shell 4 from one end to the other end. A first mounting groove 42 , a second mounting groove 43 , a third mounting groove 45 and a fourth mounting groove 44 are sequentially spaced apart on the side surface of the shell 4 along the extension direction of the laser beam passage 41 .

[0051] The collimating protection lens assembly 2 is arranged in the first mounting groove 42, the collimating lens assembly 3 is arranged in the second mounting groove 43, the focusing lens assembly 8 is arranged in the third mounting groove 45, and the focusing protection lens assembly 5 is arranged in the fourth mounting groove 44, and the slots of the first mounting groove 42, the second mounting groove 43, the third mounting groove 45 and the fourth mounting groove 44 are all blocked.

[0052] Specifically, one end of the housing 4 close to the collimating protective lens assembly 2 is connected to the optical fiber connection assembly 1, through which the laser is incident. One end of the housing 4 close to the focusing protective lens assembly 5 is connected to the nozzle 6. The point laser incident through the optical fiber connection assembly 1 is converted into a beam of parallel light by the collimating lens assembly 3, and then passes through the focusing lens assembly 8 to converge into point light spots of different focal lengths. The high energy of the point light spots is used to achieve laser processing after passing through the nozzle 6.

[0053] This embodiment avoids direct splicing and assembly between the collimating protection lens assembly 2, the collimating lens assembly 3, the focusing lens assembly 8, and the focusing protection lens assembly 5, facilitates the installation of each component, and is beneficial to ensuring the assembly accuracy. The slots of the first mounting groove 42, the second mounting groove 43, the third mounting groove 45 and the fourth mounting groove 44 are all blocked, which can improve the sealing performance, thereby reducing the damage to the lens caused by dust entering and contaminating the lens.

[0054] like Figure 2 , Figure 3 As shown, the housing 4 is integrally formed, which can reduce the number of parts and the difficulty of assembly, thereby further ensuring the overall assembly accuracy and being beneficial to the overall sealing performance.

[0055] like Figures 4 to 6 As shown, the collimator lens assembly 3 includes a collimator lens barrel 33, a collimator drawer seat 32 and a first movable structure 31. A collimator lens is arranged in the collimator lens barrel 33, and the collimator lens barrel 33 is arranged in the second mounting groove 43. The collimator protection lens assembly 2 includes a collimator protection lens, which can prevent dust, metal scraps, etc. from entering from the outside to contaminate the collimator lens when plugging and unplugging the optical fiber. The collimator drawer seat 32 is connected to the collimator lens barrel 33, and the collimator drawer seat 32 is detachably connected to the notch of the second mounting groove 43 and can block the notch of the second mounting groove 43. The collimator lens assembly 3 can slide into the second mounting groove 43 and can be pulled out from the second mounting groove 43. Optionally, the collimator drawer seat 32 is connected to the housing 4 by bolts to facilitate the installation and removal of the collimator lens assembly 3. The first movable structure 31 can drive the collimator lens barrel 33 to move in the second mounting groove 43 along the axial direction perpendicular to the laser beam channel 41. By adjusting the position of the collimating lens barrel 33 in the second installation groove 43 through the first moving structure 31 , the collimating lens barrel 33 can drive the collimating lens to move, which is beneficial to ensure the coaxiality of the collimating lens.

[0056] Specifically, the collimation drawer seat 32 is connected to the collimation lens barrel 33 through the first moving structure 31, and the first moving structure 31 includes a driving member 312 and a spring 311. The driving member 312 is connected to the collimation drawer seat 32. The spring 311 is arranged at the bottom of the second mounting groove 43. When a force is applied to the driving member 312, the driving member 312 can push the collimation lens barrel 33 toward the bottom of the second mounting groove 43, and the collimation lens barrel 33 can squeeze the spring 311 so that the spring 311 pushes the collimation lens barrel 33 to move. It can be understood that the movement amount of the collimation lens barrel 33 can be controlled by controlling the magnitude of the force applied to the spring 311, and the adjustment is convenient.

[0057] like Figure 5 , Figure 6As shown, a connecting arm 321 is provided on one side of the collimating drawer seat 32 close to the collimating lens barrel 33, and the driving member 312 includes two top blocks 3121 and two top screws 3122. One end of the two top blocks 3121 is connected to the connecting arm 321 through a rotating shaft, and the other ends of the two top blocks 3121 are respectively located on both sides of the collimating lens barrel 33 and can abut the collimating lens barrel 33. Each top screw 3122 corresponds to a top block 3121, which penetrates the collimating drawer seat 32 from the outside to the inside of the second mounting groove 43 and can abut the top block 3121 to drive the top block 3121 to rotate around the rotating shaft. Optionally, the connecting arm 321 includes a first connecting arm 3211 and a second connecting arm 3212, and a slot is provided between the first connecting arm 3211 and the second connecting arm 3212, and the rotating shaft sequentially penetrates the first connecting arm 3211, the two top blocks 3121 and the second connecting arm 3212. When the position of the collimating lens barrel 33 needs to be adjusted, the top screw 3122 is rotated, and the top screw 3122 moves toward the top block 3121. The top block 3121 can squeeze the collimating lens barrel 33, and the collimating lens barrel 33 squeezes the spring piece 311. Under the reaction force of the spring piece 311, the collimating lens barrel 33 is pushed to move. The position of the lens barrel is adjusted by using two top screws 3122, which makes adjustment more convenient.

[0058] In order to facilitate the movement of the collimating lens barrel 33 in the second mounting groove 43, grooves are provided on the upper and lower end surfaces of the collimating lens barrel 33, and a pan-seal 331 is provided in the groove. The pan-seal 331 is in sliding contact with the groove wall of the second groove to facilitate the movement of the pan-seal 331.

[0059] like Figures 7 to 9 As shown, the laser beam laser cutting machine also includes a second moving structure 7, and the focusing lens assembly 8 includes a focusing lens barrel, and a focusing lens is arranged inside the focusing lens barrel. The second moving structure 7 can drive the focusing lens barrel to move along the axial direction of the laser beam channel 41. The second moving structure 7 drives the focusing lens barrel to move, and the focusing lens barrel can drive the focusing lens to move, so that the laser focus can be adjusted up and down, so that the laser focus is in a better position, which is conducive to ensuring the quality of laser processing.

[0060] Optionally, the second mobile structure 7 includes a mounting shell 72, a transmission member 73 and a power source 71. The mounting shell 72 is arranged on one side of the housing 4 and can block the notch of the third mounting slot 45. The transmission member 73 is arranged in the mounting shell 72, and the transmission member 73 includes a screw rod 732, and a nut 731 on the screw rod 732 is connected to the focusing lens barrel through a connecting plate 74. The power source 71 is arranged in the mounting shell 72, and the power source 71 can drive the screw rod 732 to rotate. Optionally, the power source 71 is a motor, and the motor is connected to one end of the screw rod 732 through a coupling, and the other end of the screw rod 732 is rotatably connected to the mounting shell 72, and the end of the screw rod 732 close to the motor is supported by a support seat 733. The transmission member 73 includes a screw rod 732, and the use of the screw rod 732 transmission can make the movement of the focusing lens barrel more stable and more accurate. However, the screw rod 732 is not used to limit the present invention, and the transmission member 73 can also be other ways, such as belt drive, gear rack drive, etc. It can be understood that the power source 71 drives the screw rod 732 to rotate, and the nut 731 on the screw rod 732 drives the focusing lens barrel to move through the connecting plate 74, thereby realizing the adjustment of the focusing lens position.

[0061] like Figure 8 , Fig. 9 As shown, the second moving structure 7 also includes a guide member 75, which is arranged in the third mounting groove 45, and the guide member 75 is used to guide the focusing lens barrel when it moves. The setting of the guide member 75 can make the focusing lens barrel more stable when moving. Optionally, the guide member 75 is a guide rail, which is connected between the inner wall of the third mounting groove 45 and the outer wall of the focusing lens barrel, so that the focusing lens barrel can move along the guide rail. Optionally, the guide rail is arranged on the side of the focusing lens barrel close to the screw rod 732, and the guide rail can also be arranged on the side of the focusing lens barrel close to the screw rod 732 and away from the screw rod 732, so that the movement of the focusing lens barrel is more stable. Optionally, the guide rail is a cross roller guide rail, so that the movement of the focusing lens barrel is more stable.

[0062] The focusing protection lens assembly 5 includes a focusing protection lens. Optionally, a protection cover is provided at the notch of the fourth mounting groove 44, and the protection cover can block the notch of the fourth mounting groove 44. A dustproof sponge is attached to one side of the protection cover located in the fourth mounting groove 44. One side of the protection cover is rotatably connected to the housing 4 through a pin, and a knob is provided at the other end, and the knob is spirally connected to the housing 4. When the focusing protection lens needs to be removed, the protection cover can be opened by turning the knob, so as to facilitate the quick installation of the focusing protection lens. The provision of the dustproof sponge can improve the sealing effect.

[0063] In order to improve the service life of the lens of the present invention, the present embodiment also includes a water cooling system 9, which includes a water inlet channel 91 and a water outlet channel 92. The water inlet channel 91 is opened in the shell 4 and passes through the collimating protection lens assembly 2, the collimating lens assembly 3, and the focusing lens assembly 8 in sequence, and the end of the water inlet channel 91 corresponds to the focusing protection lens assembly 5. The water outlet channel 92 is opened in the shell 4 and passes through the focusing lens assembly 8, the collimating lens assembly 3 and the collimating protection lens assembly 2 in sequence, and the water inlet of the water outlet channel 92 corresponds to the focusing protection lens assembly 5. Among them, the end of the water inlet channel 91 is connected to the water inlet of the water outlet channel 92. Optionally, the water inlet channel 91 is arranged around the collimating protection lens assembly 2, the collimating lens assembly 3, and the focusing lens assembly 8, so as to improve the cooling effect. Only one water inlet and one water outlet can be set on the shell 4, which is simple and generous.

[0064] This embodiment avoids direct splicing and assembly between the collimating protection lens assembly 2, the collimating lens assembly 3, the focusing lens assembly 8, and the focusing protection lens assembly 5, which is convenient for the installation of each component and is conducive to ensuring the assembly accuracy. The notches of the first mounting groove 42, the second mounting groove 43, the third mounting groove 45, and the fourth mounting groove 44 are all blocked, which can improve the sealing performance, thereby reducing the damage to the lens caused by dust entering and contaminating the lens. In addition, the first movable structure 31 can adjust the position of the collimating lens barrel 33 to ensure the coaxiality of the collimating lens. The second movable structure 7 can adjust the position of the focusing lens barrel, and the focusing lens barrel can drive the focusing lens to move, so that the laser focus can be adjusted up and down, so that the laser focus is in a better position, which is conducive to ensuring the quality of laser processing.

[0065] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A laser processing head, comprising a collimating protective lens assembly (2), a collimating lens assembly (3), a focusing lens assembly (8), and a focusing protective lens assembly (5), characterized in that: Also includes a housing (4); A through laser beam passage (41) is provided in the shell (4) from one end to the other end, and a first mounting groove (42), a second mounting groove (43), a third mounting groove (45) and a fourth mounting groove (44) are provided on the side surface of the shell (4) in sequence and at intervals along the extension direction of the laser beam passage (41); The collimating lens assembly (2) is arranged in the first mounting groove (42), the collimating lens assembly (3) is arranged in the second mounting groove (43), the focusing lens assembly (8) is arranged in the third mounting groove (45), the focusing lens assembly (5) is arranged in the fourth mounting groove (44), and the notches of the first mounting groove (42), the second mounting groove (43), the third mounting groove (45) and the fourth mounting groove (44) are all blocked; It also includes a water cooling system (9), wherein the water cooling system (9) includes: a water inlet channel (91), the water inlet channel (91) being disposed in the housing (4) and passing through the collimating protective lens assembly (2), the collimating lens assembly (3), and the focusing lens assembly (8) in sequence, the end of the water inlet channel (91) corresponding to the focusing protective lens assembly (5); a water outlet channel (92), the water outlet channel (92) being disposed in the housing (4) and passing through the focusing lens assembly (8), the collimating lens assembly (3) and the collimating protective lens assembly (2) in sequence, the water inlet of the water outlet channel (92) corresponding to the focusing protective lens assembly (5); Wherein, the end of the water inlet channel (91) is in communication with the water inlet of the water outlet channel (92); The collimator lens assembly (3) comprises: A collimating lens barrel (33), wherein a collimating lens is arranged in the collimating lens barrel (33), and the collimating lens barrel (33) is arranged in the second mounting groove (43); A collimating drawer seat (32), the collimating drawer seat (32) being connected to the collimating lens barrel (33), the collimating drawer seat (32) being detachably connected to the notch of the second mounting groove (43) and being capable of blocking the notch of the second mounting groove (43); a first movable structure (31), wherein the first movable structure (31) is capable of driving the collimating lens barrel (33) to move in the second mounting groove (43) along an axial direction perpendicular to the laser beam channel (41); The collimating drawer seat (32) is connected to the collimating lens barrel (33) via the first movable structure (31), and the first movable structure (31) comprises: A driving member (312), the driving member (312) being connected to the alignment drawer seat (32); A spring piece (311), the spring piece (311) being arranged at the bottom of the second mounting groove (43); When force is applied to the driving member (312), the driving member (312) can push the collimating lens barrel (33) toward the bottom side of the second mounting slot (43), and the collimating lens barrel (33) can squeeze the spring sheet (311) so that the spring sheet (311) pushes the collimating lens barrel (33) to move; It also includes a second movable structure (7), the focusing lens assembly (8) includes a focusing lens barrel, a focusing lens is arranged inside the focusing lens barrel, and the second movable structure (7) can drive the focusing lens barrel to move along the axial direction of the laser beam channel (41).

2. The laser processing head according to claim 1, characterized in that: The shell (4) is integrally formed.

3. The laser processing head according to claim 1, characterized in that: A connecting arm (321) is provided on one side of the collimating drawer seat (32) close to the collimating lens barrel (33), and the driving member (312) comprises: Two top blocks (3121), one end of each of the two top blocks (3121) being connected to the connecting arm (321) via a rotating shaft, and the other ends of the two top blocks (3121) being respectively located on both sides of the collimating lens barrel (33) and being able to abut against the collimating lens barrel (33); Two top screws (3122), each of which corresponds to one top block (3121), pass through the alignment drawer seat (32) from the outside of the second mounting groove (43) to the inside and can abut against the top block (3121) to drive the top block (3121) to rotate around the rotating shaft.

4. The laser processing head according to claim 1, characterized in that: The second mobile structure (7) comprises: A mounting shell (72), the mounting shell (72) being arranged on one side of the housing (4) and capable of blocking a notch of the third mounting slot (45); A transmission member (73) is arranged in the mounting shell (72), the transmission member (73) comprising a screw rod (732), and a nut (731) on the screw rod (732) is connected to the focusing lens barrel via a connecting plate (74); A power source (71), the power source (71) being disposed in the mounting shell (72), and the power source (71) being capable of driving the screw rod (732) to rotate.

5. The laser processing head according to claim 1, characterized in that: The second moving structure (7) further comprises a guide member (75), wherein the guide member (75) is arranged in the third mounting groove (45), and the guide member (75) is used to guide the focusing lens barrel when it moves.

6. A laser processing device, characterized in that: The laser processing head comprises the laser processing head according to any one of claims 1 to 5.

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