Optical fiber laser cutting head with collimation function

Abstract

The utility model belongs to laser cutting technical field, specifically is a kind of optical fiber laser cutting head with collimation function, including cutting table;The cutting table top is fixedly connected with moving frame;The moving frame middle part is installed with cutting head main part;The cutting head main part middle part is installed with drawer;The drawer middle part is installed with collimating mirror;Two cleaning grooves are set in the drawer middle part;Two the cleaning groove is respectively set in collimating mirror top and bottom position;The cleaning groove side wall is fixedly connected with two first springs;Two the first spring end is fixedly connected with fixed shaft;The fixed shaft middle part is rotatably connected with cleaning cylinder;Through the above structure, collimating mirror can be cleaned directly, can effectively reduce the step of disassembling and reinstalling drawer and collimating mirror in cutting head main part middle part, save the cumbersome step of disassembling and reinstalling, reduce additional calibration and adjustment effectively keep its performance stable.

Description

Technical Field

[0001] This utility model belongs to the field of laser cutting technology, specifically a fiber laser cutting head with collimation function. Background Technology

[0002] The fiber laser cutting head with collimation function is the core component of a laser cutting machine, integrating the collimation and focusing functions of the laser beam.

[0003] During the cutting process, when the laser beam generated by the laser is transmitted to the cutting head through the optical fiber, it is first shaped by the collimating lens to make the beam parallel. Then, the beam is focused by the focusing lens, concentrating the energy on a small point. At this time, the cutting head moves according to the preset cutting path and parameters. At the same time, the auxiliary gas ejected from the nozzle helps the cutting. The laser beam forms a high-temperature area on the surface of the workpiece, causing the material to heat up rapidly and melt or evaporate, thereby realizing the cutting work.

[0004] In the existing technology, the collimator needs to be cleaned and maintained after a period of use. Usually, the collimator needs to be removed from the laser cutting head during the cleaning process. The disassembly and reinstallation of the collimator is a complicated process that can easily cause scratches and damage to the surface of the collimator or related components.

[0005] Therefore, this utility model provides a fiber laser cutting head with collimation function. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A fiber laser cutting head with collimation function, comprising a cutting table; a movable frame fixedly connected to the top of the cutting table; a cutting head body installed in the middle of the movable frame; a drawer installed in the middle of the cutting head body; a collimating lens installed in the middle of the drawer; two cleaning slots opened in the middle of the drawer; the two cleaning slots are respectively opened at the top and bottom of the collimating lens; two first springs fixedly connected to the side wall of the cleaning slot; a fixed shaft fixedly connected to the ends of the two first springs; a cleaning cylinder rotatably connected to the middle of the fixed shaft; pull ropes fixedly connected to both ends of the cleaning cylinder; a rotating shaft rotatably connected to the side wall of the drawer; one of the rotating shafts... The end of the drawer extends through the side wall; the ends of the two pull ropes are fixed to the middle of the rotating shaft; a rotating handle is fixed to the end of the rotating shaft; the above structure allows for direct cleaning of the collimator, effectively reducing the steps of disassembling and reinstalling the drawer and collimator in the middle of the cutting head body, saving tedious disassembly and reinstallation steps, reducing additional calibration and adjustment, and effectively maintaining its performance stability. The cleaning tube can evenly cover the entire surface of the collimator, quickly and thoroughly removing dirt and impurities, effectively enabling rapid maintenance and cleaning of the collimator. During disassembly and reinstallation, scratches and friction can easily occur on the surface of the collimator or related components, effectively reducing the occurrence of damage during maintenance.

[0008] Preferably, the cutting table has a cutting groove in the middle; the bottom sidewall of the cutting groove is inclined; two fixing rods are fixed to the sidewall of the cutting groove; the two fixing rods are arranged opposite each other; and a placement platform is fixed to the ends of the two fixing rods. This structure ensures that during the cutting process, debris remains inside the cutting groove, reducing the amount of debris and sparks that splash outside the work area. This effectively reduces the risk of injury to personnel from debris and sparks splashing outside the work area, and also effectively reduces environmental pollution caused by debris splashing, thus reducing the time and efficiency of additional debris cleanup.

[0009] Preferably, a drive motor is installed in the middle of the placement platform; the output end of the drive motor passes through the bottom of the placement platform; a connecting pipe is fixedly connected to the output end of the drive motor; the end of the connecting pipe is rotatably connected to the middle of the cutting platform; a vacuum cleaner is installed at the bottom of the cutting platform; a first vacuum pipe is fixedly connected to the top of the vacuum cleaner; the middle of the first vacuum pipe passes through the bottom of the cutting platform; the end of the first vacuum pipe is located inside the connecting pipe; two second vacuum pipes are fixedly connected to the middle of the connecting pipe; the two second vacuum pipes are arranged opposite each other; a vacuum head is fixedly connected to the middle of the second vacuum pipe. This structure allows for the timely collection of debris and sparks generated during laser cutting, reducing the damage caused by long-term debris accumulation that could corrode or scratch the equipment. Timely collection of these debris reduces their adhesion to the workpiece to be processed or already completed.

[0010] Preferably, the outer wall of the drawer has two first fixing slots; the two first fixing slots are arranged opposite each other; the inner wall of the cutting head body has two second fixing slots corresponding to the positions of the first fixing slots; a second spring is fixedly connected to the side wall of the first fixing slot; a fixing block is fixedly connected to the end of the second spring; a push plate is slidably connected to the middle of the second fixing slot; a push rod is fixedly connected to the middle of the push plate; the middle of the push rod passes through the side wall of the cutting head body; a third spring is fixedly connected to the end of the push rod; the end of the third spring is fixedly connected to the outer wall of the cutting head body; the above structure allows for quick replacement of the collimating lens without complicated disassembly steps or tools, effectively reducing the time for maintaining and replacing the collimating lens, and enabling quick replacement of collimating lenses of different specifications when processing different materials or performing different processing tasks, effectively meeting diverse processing needs.

[0011] Preferably, a first magnetic block is fixedly connected to the side wall of the push plate; a second magnetic block is fixedly connected to the side wall of the fixing block; the second magnetic block is located on the side away from the second spring; the first magnetic block and the second magnetic block attract each other when they are close; through the above structure, the first magnetic block and the second magnetic block have a strong attraction force, which can form a stable connection between the fixing block and the second fixing groove, so that the fixing block can be more stably fixed inside the second fixing groove, effectively reducing the shaking of the fixing block inside the second fixing groove.

[0012] Preferably, multiple sets of protective plates are fixed to the sidewall of the cutting groove; the multiple sets of protective plates are respectively arranged on the four sides of the cutting groove; the protective plates are inclined downwards; with the above structure, high-temperature debris is easily generated during laser cutting. Adding inclined protective plates to the sidewall of the cutting groove can prevent these debris from impacting the sidewall of the cutting groove and impacting the outside, reducing the risk of debris directly contacting the surrounding equipment. Debris that falls directly onto the cutting table or internal precision components can cause damage or performance degradation.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The fiber laser cutting head with collimation function described in this utility model can directly clean the collimator, effectively reducing the steps of disassembling and reinstalling the drawer and collimator in the middle of the cutting head body. This saves on the tedious steps of disassembly and reinstallation, reduces the need for additional calibration and adjustment, and effectively maintains its performance stability. The cleaning cylinder can evenly cover the entire surface of the collimator, quickly and thoroughly removing dirt and impurities, effectively enabling rapid maintenance and cleaning of the collimator. During disassembly and reinstallation, scratches and friction can easily occur on the surface of the collimator or related components, effectively reducing the occurrence of damage during maintenance.

[0015] 2. The fiber laser cutting head with collimation function described in this utility model can keep the chips inside the cutting groove during the cutting process, reducing the amount of chips and sparks splashed outside the working area and effectively reducing the risk of injury to personnel caused by chips and sparks splashed outside the working area. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the cutting head body in this utility model;

[0019] Figure 3 This is a schematic diagram of the cleaning cylinder in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the fixing block in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the placement platform in this utility model;

[0022] Figure 6 This is a schematic diagram of the vacuum cleaner head in this utility model;

[0023] In the diagram: 1. Cutting table; 10. Movable frame; 11. Cutting head body; 12. Drawer; 13. Collimating lens; 14. Cleaning groove; 15. First spring; 16. Fixed shaft; 17. Cleaning cylinder; 18. Pull rope; 19. Rotating shaft; 20. Rotating handle; 2. Cutting groove; 21. Fixed rod; 22. Placement platform; 3. Drive motor; 31. Connecting pipe; 32. First suction pipe; 33. Vacuum cleaner; 34. Second suction pipe; 35. Suction head; 4. First fixed groove; 40. Second fixed groove; 41. Second spring; 42. Fixed block; 43. Push plate; 44. Push rod; 45. Third spring; 5. First magnet; 51. Second magnet; 6. Protective plate; 7. Ball bearing. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figures 1 to 4As shown in the embodiment of this utility model, a fiber laser cutting head with collimation function includes a cutting table 1; a movable frame 10 is fixedly connected to the top of the cutting table 1; a cutting head body 11 is installed in the middle of the movable frame 10; a drawer 12 is installed in the middle of the cutting head body 11; a collimating lens 13 is installed in the middle of the drawer 12; two cleaning grooves 14 are opened in the middle of the drawer 12; the two cleaning grooves 14 are respectively opened at the top and bottom of the collimating lens 13; two first springs 15 are fixedly connected to the side wall of the cleaning groove 14; a fixed shaft 16 is fixedly connected to the end of the two first springs 15; a cleaning cylinder 17 is rotatably connected to the middle of the fixed shaft 16; and pull ropes 18 are fixedly connected to both ends of the cleaning cylinder 17; the drawer 1... A rotating shaft 19 is rotatably connected to the side wall of drawer 12; one end of the rotating shaft 19 passes through the side wall of drawer 12; the ends of the two pull ropes 18 are fixed to the middle of the rotating shaft 19; a rotating handle 20 is fixed to the end of the rotating shaft 19; during operation, the workpiece is first placed on the cutting table 1, and the cutting position and shape of the workpiece are controlled. After the moving frame 10 is opened, the cutting head body 11 is moved according to the settings inside the control system. A high-energy-density laser beam generated by the laser generator is transmitted to the collimation module on the cutting head through an optical fiber. The laser beam, after being collimated by drawer 12, is focused onto the workpiece to achieve rapid cutting. After the workpiece is cut, the rotating handle 20 on one side of drawer 12 is pinched and the rotating handle 20 is turned simultaneously. The rotating shaft 19 is driven to rotate. During this rotation, the two pull ropes 18 are pulled and wound around the middle of the rotating shaft 19. Simultaneously, the pull ropes 18, while wound around the middle of the rotating shaft 19, drive the fixed shaft 16 to move. As the fixed shaft 16 moves, the cleaning cylinder 17 contacts and rotates with the collimating lens 13. The soft material of the cleaning cylinder 17 gently removes dirt and impurities from the surface of the collimating lens 13. When the cleaning cylinder 17 moves towards the rotating shaft 19, the first spring 15 is stretched elastically by the tension. After the cleaning cylinder 17 reaches the position of the rotating shaft 19, the rotating handle 20 is released. At this time, the first spring 15, no longer under tension, elastically retracts, causing the cleaning cylinder 17 to move back to its original position. Simultaneously, the rotating shaft 19... 9. Rotate to unwind the pull rope 18, thereby cleaning the surface of the collimator 13. The above structure allows for direct cleaning of the collimator 13, effectively reducing the steps of disassembling and reinstalling the drawer 12 and collimator 13 in the middle of the cutting head body 11. This saves on tedious disassembly and reinstallation steps, reduces the need for additional calibration and adjustment, and effectively maintains stable performance. The cleaning cylinder 17 can evenly cover the entire surface of the collimator 13, quickly and thoroughly removing dirt and impurities, effectively enabling rapid maintenance and cleaning of the collimator 13. During disassembly and reinstallation, scratches and friction can easily occur on the surface of the collimator 13 or related components, effectively reducing the occurrence of damage during maintenance.

[0026] like Figures 1 to 5 As shown, a cutting groove 2 is provided in the middle of the cutting table 1; the bottom sidewall of the cutting groove 2 is inclined; two fixing rods 21 are fixed to the sidewall of the cutting groove 2; the two fixing rods 21 are arranged opposite each other; a placement platform 22 is fixed to the end of the two fixing rods 21; during operation, the workpiece is first placed in the middle of the placement platform 22. When the cutting head body 11 laser cuts the workpiece, a certain amount of cutting debris and sparks will be generated on the workpiece cutting surface. When the debris and sparks fly, they collide with the sidewall of the cutting groove 2 and are intercepted, keeping the debris and sparks inside the cutting groove 2. Through the above structure, the debris can always be kept inside the cutting groove 2 during the cutting process, reducing the debris and sparks from flying outside the working area. This can effectively reduce the damage to personnel caused by debris and sparks flying outside the working area, and can also effectively reduce the pollution of the surrounding environment caused by debris flying, reducing the time and efficiency of additional debris cleaning in the surrounding environment.

[0027] like Figure 5 and Figure 6 As shown, a drive motor 3 is installed in the middle of the placement platform 22; the output end of the drive motor 3 passes through the bottom of the placement platform 22; a connecting pipe 31 is fixedly connected to the output end of the drive motor 3; the end of the connecting pipe 31 is rotatably connected to the middle of the cutting table 1; a vacuum cleaner 33 is installed at the bottom of the cutting table 1; a first vacuum pipe 32 is fixedly connected to the top of the vacuum cleaner 33; the middle of the first vacuum pipe 32 passes through the bottom of the cutting table 1; the end of the first vacuum pipe 32 is located inside the connecting pipe 31; two second vacuum pipes 34 are fixedly connected to the middle of the connecting pipe 31; the two second vacuum pipes 34 are arranged opposite each other; a vacuum head 35 is fixedly connected to the middle of the second vacuum pipe 34; during operation, when cutting... During the cutting process, the drive motor 3 is powered on and turned on. The output end of the drive motor 3 rotates and drives the connecting pipe 31 to rotate simultaneously. After the vacuum cleaner 33 is turned on, a negative pressure airflow is generated inside. As the two second vacuum pipes 34 rotate, the negative pressure airflow sucks the debris into the second vacuum pipes 34 and then enters the vacuum cleaner 33 from one end of the first vacuum pipe 32 to collect the debris. Through the above structure, the debris and sparks generated during the laser cutting process can be collected in time, reducing the damage caused by long-term accumulation of debris to the equipment, such as corrosion or scratches. Timely collection of these debris can reduce the debris adhering to the workpiece to be processed or the completed workpiece, and reduce the impact on the surface quality of the workpiece.

[0028] like Figure 4As shown, the outer wall of the drawer 12 has two first fixing grooves 4; the two first fixing grooves 4 are arranged opposite each other; the inner wall of the cutting head body 11 has two second fixing grooves 40 corresponding to the positions of the first fixing grooves 4; a second spring 41 is fixedly connected to the side wall of the first fixing groove 4; a fixing block 42 is fixedly connected to the end of the second spring 41; a push plate 43 is slidably connected to the middle of the second fixing groove 40; a push rod 44 is fixedly connected to the middle of the push plate 43; the middle of the push rod 44 passes through the side wall of the cutting head body 11; a third spring 45 is fixedly connected to the end of the push rod 44; the end of the third spring 45 is fixedly connected to the outer wall of the cutting head body 11; when installing or removing the collimating lens 13, first press the push rods 44 on both sides, push the push plate 43 through the push rods 44, so that the push plate 43 slides inside the second fixing groove 40, and pushes the fixing block 42 into the first fixing groove 4, while the second spring 41, which is compressed, elastically contracts. When the fixing block 42 enters the first fixing groove 4, the drawer 12 is pulled out and the push rod 44 is released. The push rod 44 is reset by the third spring 45. After the collimating lens 13 is replaced, the drawer 12 is placed inside the cutting head body 11. The fixing block 42 is squeezed to retract the second spring 41. When the fixing block 42 enters the second fixing groove 40, the second spring 41 is stretched elastically. The fixing block 42 fixes the drawer 12, allowing the drawer 12 to be quickly installed and removed in the middle of the cutting head body 11. The above structure allows for quick replacement of the collimating lens 13 without complicated disassembly steps or tools, effectively reducing the time required for maintenance and replacement of the collimating lens 13. It allows for quick replacement of collimating lenses 13 of different specifications when processing different materials or performing different processing tasks, effectively meeting diverse processing needs. It also ensures the stability and accuracy of the collimating lens 13 during installation, reducing the problem of cutting deviation caused by improper installation.

[0029] like Figure 3 and Figure 4 As shown, a first magnetic block 5 is fixedly connected to the side wall of the push plate 43; a second magnetic block 51 is fixedly connected to the side wall of the fixing block 42; the second magnetic block 51 is located on the side away from the second spring 41; the first magnetic block 5 and the second magnetic block 51 attract each other when they are close; during operation, when the fixing block 42 enters the second fixing groove 40, the second magnetic block 51 and the first magnetic block 5 quickly generate an attraction force, so that the fixing block 42 and the push plate 43 are tightly attached. Through the above structure, the first magnetic block 5 and the second magnetic block 51 have a strong attraction force, which can form a stable connection between the fixing block 42 and the second fixing groove 40, so that the fixing block 42 can be more stably fixed inside the second fixing groove 40, effectively reducing the shaking of the fixing block 42 inside the second fixing groove 40, and making it less likely to fall off due to external force or shaking.

[0030] like Figure 1 and Figure 5As shown, multiple sets of protective plates 6 are fixed to the side wall of the cutting groove 2; the multiple sets of protective plates 6 are respectively arranged on the four sides of the cutting groove 2; the protective plates 6 are inclined downwards; during operation, when the workpiece is laser cut, the flying debris first contacts the side wall of the cutting groove 2, and after colliding with the cutting groove 2, the debris is intercepted by the protective plates 6, so that the debris naturally slides to the bottom of the cutting groove 2 and is collected. With the above structure, high-temperature debris flying is easily generated during the laser cutting process. Adding inclined protective plates 6 to the side wall of the cutting groove 2 can prevent these flying objects from impacting the side wall of the cutting groove 2 and impacting the outside, reducing the risk of debris directly contacting the surrounding equipment. Flying debris falling directly onto the cutting table 1 or internal precision parts will cause damage or performance degradation. This effectively protects the equipment during the laser cutting process.

[0031] like Figure 6 As shown, the bottom of the suction head 35 has two ball bearings 7; the two ball bearings 7 are arranged opposite each other; during operation, when the second suction pipe 34 rotates at the bottom of the cutting groove 2 to collect debris, the two ball bearings 7 at the bottom of the second suction pipe 34 contact the bottom surface of the cutting groove 2, and the ball bearings 7 roll along with the second suction pipe 34 as it rotates. The above structure can effectively reduce the friction and wear caused by the direct contact and rotation between the second suction pipe 34 and the inside of the cutting table 1, and effectively reduce the damage to the second suction pipe 34 during long-term use.

[0032] During operation, the workpiece is first placed on the cutting table 1. The cutting position and shape of the workpiece are controlled. After the moving frame 10 is opened, the cutting head body 11 is moved according to the settings inside the control system. A high-energy-density laser beam generated by the laser generator is transmitted to the collimation module on the cutting head through an optical fiber. After being collimated by the drawer 12, the laser beam is focused onto the workpiece, achieving rapid cutting. After the workpiece is cut, the rotating handle 20 on one side of the drawer 12 is pinched and turned, which simultaneously drives the rotating shaft 19 to rotate. As the rotating shaft 19 rotates, it pulls the two pull ropes 18 and winds them around the middle of the rotating shaft 19. At the same time, as the pull ropes 18 are wound around the middle of the rotating shaft 19, they drive the fixed shaft 16 to move. During the movement of the fixed shaft 16, the cleaning cylinder 17 contacts and rotates with the collimating lens 13. The soft material of the cleaning cylinder 17 gently wipes away dirt and impurities from the surface of the collimating lens 13. When the cleaning cylinder 17 moves toward the rotating shaft 19, the first spring 15 is stretched elastically by the tension. After the cleaning cylinder 17 moves to the position of the rotating shaft 19, the rotating handle 20 is released. At this time, the first spring 15 is no longer stretched and elastically retracts, causing the cleaning cylinder 17 to move back to its original position. At the same time, the rotating shaft 19 rotates to unwind the pull rope 18, thereby cleaning the surface of the collimating lens 13. First, the workpiece is placed in the middle of the placement table 22. During the laser cutting process of the cutting head body 11, certain cutting debris and sparks will be generated on the cutting surface of the workpiece. When debris and sparks fly, they collide with and intercept the side wall of the cutting groove 2, keeping the debris and sparks inside the cutting groove 2. During the cutting process, the drive motor 3 is powered on and turned on. The output end of the drive motor 3 rotates and drives the connecting pipe 31 to rotate simultaneously. After the vacuum cleaner 33 is turned on, a negative pressure airflow is generated inside. As the two second suction pipes 34 rotate, the negative pressure airflow sucks the debris into the second suction pipes 34, and then enters the vacuum cleaner 33 from one end of the first suction pipe 32 to collect the debris. When installing or removing and replacing the collimating lens 13, first press the push rods 44 on both sides. The push rods 44 push the push plate 43, causing the push plate 43 to slide inside the second fixing groove 40, and push the fixing block 42 to enter the first fixing groove 4. Simultaneously, the second spring 41, compressed, elastically contracts. When the fixing block 42 enters the first fixing groove 4, the drawer 12 is pulled out, releasing the push rod 44. The third spring 45 then resets the push rod 44. After the collimating lens 13 is replaced, the drawer 12 is placed inside the cutting head body 11. The fixing block 42 is compressed, causing the second spring 41 to contract. When the fixing block 42 enters the second fixing groove 40, the second spring 41 elastically stretches, and the fixing block 42 fixes the drawer 12, allowing for quick installation and removal of the drawer 12 in the middle of the cutting head body 11. When the fixing block 42 enters the second fixing groove 40, the second magnet 51 and the first magnet 5 quickly generate an attractive force, causing the fixing block 42 to fit tightly against the push plate 43. During the laser cutting process of the workpiece...The flying debris first contacts the side wall of the cutting groove 2. After colliding with the cutting groove 2, the debris is intercepted by the protective plate 6, allowing it to slide naturally to the bottom of the cutting groove 2 for collection. As the second suction pipe 34 rotates at the bottom of the cutting groove 2 to collect the debris, two ball bearings 7 at the bottom of the second suction pipe 34 contact the bottom surface of the cutting groove 2, and these ball bearings 7 roll along with the rotating second suction pipe 34.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fiber laser cutting head with collimation function, comprising a cutting stage (1); characterized in that: A movable frame (10) is fixedly connected to the top of the cutting table (1); a cutting head body (11) is installed in the middle of the movable frame (10); a drawer (12) is installed in the middle of the cutting head body (11); a collimating lens (13) is installed in the middle of the drawer (12); two cleaning slots (14) are opened in the middle of the drawer (12); the two cleaning slots (14) are respectively opened at the top and bottom of the collimating lens (13); two first springs (15) are fixedly connected to the side wall of the cleaning slots (14). The ends of the two first springs (15) are fixedly connected to a fixed shaft (16); a cleaning cylinder (17) is rotatably connected to the middle of the fixed shaft (16); a pull rope (18) is fixedly connected to both ends of the cleaning cylinder (17); a rotating shaft (19) is rotatably connected to the side wall of the drawer (12); one end of the rotating shaft (19) passes through the side wall of the drawer (12); the ends of the two pull ropes (18) are fixedly connected to the middle of the rotating shaft (19); a rotating handle (20) is fixedly connected to the end of the rotating shaft (19).

2. The fiber laser cutting head with collimation function according to claim 1, characterized in that: The cutting table (1) has a cutting groove (2) in the middle; the bottom side wall of the cutting groove (2) is set with an incline; two fixing rods (21) are fixed to the side wall of the cutting groove (2); the two fixing rods (21) are arranged opposite to each other; and a placement table (22) is fixed to the end of the two fixing rods (21).

3. A fiber laser cutting head with collimation function according to claim 2, characterized in that: A drive motor (3) is installed in the middle of the placement platform (22); the output end of the drive motor (3) passes through the bottom of the placement platform (22); a connecting pipe (31) is fixedly connected to the output end of the drive motor (3); the end of the connecting pipe (31) is rotatably connected to the middle of the cutting table (1); a vacuum cleaner (33) is installed at the bottom of the cutting table (1); a first vacuum cleaner pipe (32) is fixedly connected to the top of the vacuum cleaner (33); the middle of the first vacuum cleaner pipe (32) passes through the bottom of the cutting table (1); the end of the first vacuum cleaner pipe (32) is located inside the connecting pipe (31); two second vacuum cleaner pipes (34) are fixedly connected to the middle of the connecting pipe (31); the two second vacuum cleaner pipes (34) are arranged opposite each other; a vacuum head (35) is fixedly connected to the middle of the second vacuum cleaner pipe (34).

4. A fiber laser cutting head with collimation function according to claim 1, characterized in that: The drawer (12) has two first fixing grooves (4) on its outer side wall; the two first fixing grooves (4) are arranged opposite each other; the inner side wall of the cutting head body (11) has two second fixing grooves (40) corresponding to the positions of the first fixing grooves (4); a second spring (41) is fixedly connected to the side wall of the first fixing groove (4); a fixing block (42) is fixedly connected to the end of the second spring (41); a push plate (43) is slidably connected to the middle of the second fixing groove (40); a push rod (44) is fixedly connected to the middle of the push plate (43); the middle of the push rod (44) penetrates the side wall of the cutting head body (11); a third spring (45) is fixedly connected to the end of the push rod (44); the end of the third spring (45) is fixedly connected to the outer side wall of the cutting head body (11).

5. A fiber laser cutting head with collimation function according to claim 4, characterized in that: The push plate (43) has a first magnetic block (5) fixed to its side wall; the fixing block (42) has a second magnetic block (51) fixed to its side wall; the second magnetic block (51) is located on the side away from the second spring (41); the first magnetic block (5) and the second magnetic block (51) attract each other when they are close.

6. A fiber laser cutting head with collimation function according to claim 2, characterized in that: The cutting groove (2) has multiple sets of protective plates (6) fixed to its side wall; the multiple sets of protective plates (6) are respectively arranged on the four sides of the cutting groove (2); the protective plates (6) are inclined downward.

7. A fiber laser cutting head with collimation function according to claim 3, characterized in that: The bottom of the suction head (35) has two balls (7); the two balls (7) are arranged opposite each other.

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