Laser transmission mechanism and cutting device provided with same

By introducing a laser transmission mechanism into the three-dimensional laser cutting device and using a hollow servo motor to drive the reflector to rotate, the problem of limited optical path transmission angle is solved, enabling laser cutting with a wider angle range and a simplified adjustment process.

CN223776238UActive Publication Date: 2026-01-09JINYUNHANG (SHANGHAI) AVIATION MACHINERY CO LTD
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Patent Information

Application Number
CN202520330550.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-01-09
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

Existing 3D laser cutting devices have limited range of optical path transmission angle variation, and the addition of auxiliary mechanical structures increases the size and weight of the device, which limits the speed of angle change and processing in narrow spaces.

Method used

A laser transmission mechanism is adopted, including a primary hollow adjustment component and a secondary hollow adjustment component. The hollow servo motor drives the bearing to rotate the reflector component, and the laser transmission direction is changed by utilizing the principle of laser refraction, thereby increasing the range of optical path transmission angle variation.

Benefits of technology

It effectively increases the range of optical path transmission angle variation of the three-dimensional laser cutting device, expands the processing angle, simplifies the adjustment process, improves maintenance efficiency, and reduces the size and weight of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of laser. In order to enlarge the light path transmission angle change range of the three-dimensional laser cutting device, the utility model provides a laser transmission mechanism, in which a first-stage hollow adjusting piece is connected with a cutting head and a middle reflecting piece, and the middle reflecting piece is vertical to the central axis of a light path outlet of the cutting head; a middle reflecting mirror in the middle reflecting piece and a primary reflecting mirror in the cutting head are oppositely arranged; the second-stage hollow adjusting piece is connected with the middle reflecting piece and the tail end reflecting piece, the central axis of the tail end reflecting piece is perpendicular to the central axis of a light path outlet of the middle reflecting piece, and a tail end reflecting mirror in the tail end reflecting piece is opposite to the middle reflecting mirror; during adjustment, the first-stage hollow adjusting piece drives the middle reflecting piece to rotate around the central axis of the light path outlet of the cutting head, and the second-stage hollow adjusting piece drives the tail end reflecting piece to rotate around the central axis of the light path outlet of the middle reflecting piece. By the adoption of the laser transmission mechanism, the light path transmission angle change range of the cutting device can be effectively enlarged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to laser technology field especially relates to a laser transmission mechanism in laser cutting device. BACKGROUND

[0002] At present, the three-dimensional laser cutting device commonly seen in the market usually utilizes the cutting head and rotating shaft of the planer to form a three-dimensional laser cutting mechanism. However, due to the characteristics of the cutting head of the planer, the light path input port and the light path output port are in a straight line, so as to realize the change of the light path transmission angle of the three-dimensional laser cutting device, an auxiliary mechanical structure is usually added behind the cutting head. In this way, not only the auxiliary mechanical structure is limited by the structure shape of the cutting head, but also the range of the angle change of the light path transmission is very limited. In addition, the three-dimensional laser cutting mechanism will be relatively large in size and weight due to the rotating mechanism added on the cutting head of the planer, which further leads to the limitation of the speed of the angle change of the three-dimensional laser cutting device and the processing in the narrow space. SUMMARY

[0003] In order to increase the light path transmission angle range of the three-dimensional laser cutting device, the utility model provides a laser transmission mechanism, the laser transmission mechanism includes one -level hollow adjusting spare and two -level hollow adjusting spare, the positioning end of one -level hollow adjusting spare is connected with cutting head, the adjusting end of one -level hollow adjusting spare is connected with intermediate reflection piece, the center axis of light path export of intermediate reflection piece is perpendicular with the center axis of light path export of cutting head, and the intermediate reflection mirror in intermediate reflection piece is opposite with the primary mirror in cutting head is set up, the positioning end of two -level hollow adjusting spare is connected with intermediate reflection piece, the adjusting end of two -level hollow adjusting spare is connected with end reflection piece, the center axis of light path export of end reflection piece is perpendicular with the center axis of light path export of intermediate reflection piece, and the end reflection mirror in end reflection piece is opposite with the intermediate reflection mirror is set up, when adjusting, one -level hollow adjusting spare drives intermediate reflection piece rotates around the center axis of light path export of cutting head, two -level hollow adjusting spare drives end reflection piece rotates around the center axis of light path export of intermediate reflection piece, the utility model discloses laser transmission mechanism utilizes one -level hollow adjusting spare to drive intermediate reflection piece and end reflection piece rotates around the center axis of light path export of cutting head, that is to drive the laser nozzle at the light path export of end reflection piece rotates around the center axis of light path export of cutting head, utilizes two -level hollow adjusting spare to drive end reflection piece rotates around the center axis of light path export of intermediate reflection piece, that is to drive the laser nozzle at the light path export of end reflection piece rotates around the center axis of light path export of intermediate reflection piece, that is to say, after assembling the utility model discloses laser transmission mechanism in cutting device, when the light path export of cutting head is fixed, that is to fix the light path import, the utility model discloses laser transmission mechanism changes the transmission direction of laser according to laser refraction principle, and can drive the laser nozzle at the light path export of end reflection piece rotates around the center axis of light path export of cutting head or / and the center axis of light path export of intermediate reflection piece according to need utilizing one -level hollow adjusting spare or / and two -level hollow adjusting spare, and the direction of the output laser of laser nozzle is adjusted, therefore, by using the utility model discloses laser transmission mechanism, the light path transmission angle range of three-dimensional laser cutting device can be effectively increased, and more processing angles are provided for three-dimensional laser cutting device.

[0004] Preferably, the positioning end of the primary hollow adjusting member is connected with the cutting head through a primary connecting seat, the adjusting end of the primary hollow adjusting member is connected with the intermediate reflecting member through a primary motor connecting seat; the adjusting end of the secondary hollow adjusting member is connected with the terminal reflecting member through a secondary motor connecting seat. In this way, the primary hollow adjusting member and the cutting head are connected through the primary connecting seat, which can avoid the mutual interference between the primary hollow adjusting member and the focusing mirror adjusting mechanism arranged on the cutting head, and affect the adjustment of the focusing mirror in the cutting head; the primary hollow adjusting member and the intermediate reflecting member are connected through the primary motor connecting seat, and the secondary hollow adjusting member and the terminal reflecting member are connected through the secondary motor connecting seat, which not only can replace the primary motor connecting seat and the secondary motor connecting seat of corresponding specifications according to the use needs, expand the application range of the laser transmission mechanism of the utility model, but also facilitate the maintenance personnel to disassemble the intermediate reflecting member and the terminal reflecting member when performing maintenance, and improve the maintenance efficiency.

[0005] Preferably, the first hollow adjusting member comprises a first hollow servo motor and a first bearing, the first bearing is located between the first hollow servo motor and the intermediate reflecting member and drives the intermediate reflecting member to rotate under the drive of the first hollow servo motor; the second hollow adjusting member comprises a second hollow servo motor and a second bearing, the second bearing is located between the second hollow servo motor and the terminal reflecting member and drives the terminal reflecting member to rotate under the drive of the second hollow servo motor. In this way, the first hollow adjusting member drives the first bearing to rotate by the first hollow servo motor, so as to drive the intermediate reflecting member to rotate around the central axis of the light path outlet of the cutting head; the second hollow adjusting member drives the second bearing to rotate by the second hollow servo motor, so as to drive the terminal reflecting member to rotate around the central axis of the light path outlet of the intermediate reflecting member. It can be seen that the laser transmission mechanism of the utility model only needs to drive the bearing to rotate by the hollow servo motor, so as to complete the adjustment of the light path output angle of the laser output by the cutting head, which is simple, convenient and easy to control. Further, the first hollow adjusting member comprises a first motor upper fixing seat, a first motor fixing plate and a first motor lower fixing seat, the upper end of the first motor upper fixing seat is connected with the first connecting seat, the lower end of the first motor upper fixing seat is connected with the first hollow servo motor through the first motor fixing plate; the first motor lower fixing seat is located between the first hollow servo motor and the first motor connecting seat and is connected with the intermediate reflecting member through the first motor connecting seat; the second hollow adjusting member comprises a second motor fixing plate, and the second motor fixing plate is clamped between the intermediate reflecting member and the second hollow servo motor and connects the intermediate reflecting member and the second hollow servo motor. In this way, the first hollow servo motor is installed and fixed by the first motor upper fixing seat, the first motor fixing plate and the first motor lower fixing seat, and the second hollow servo motor is installed and fixed by the second motor fixing plate, which is simple and convenient. Further preferably, the first hollow adjusting member comprises a first motor protective cover, the first motor protective cover is arranged on the periphery of the first hollow servo motor, the first bearing, the first motor upper fixing seat, the first motor fixing plate and the first motor lower fixing seat, and the upper end of the first motor protective cover is connected with the first connecting seat; the second hollow adjusting member comprises a second motor protective cover, the second motor protective cover is arranged on the periphery of the second hollow servo motor, the second bearing and the second motor fixing plate, and the two ends of the second motor protective cover are respectively connected with the intermediate reflecting member and the second motor connecting seat. In this way, the first motor protective cover is arranged in the first hollow adjusting member to protect the first hollow servo motor and the first bearing, and the second motor protective cover is arranged in the second hollow adjusting member to protect the second hollow servo motor and the second bearing, so that the first hollow servo motor, the first bearing, the second hollow servo motor and the second bearing are prevented from being exposed to dust and even affecting the laser transmission.

[0006] Preferably, the intermediate reflecting member comprises an intermediate reflecting seat, an intermediate reflecting cavity is arranged in the intermediate reflecting seat, and the intermediate reflecting mirror is fixed and installed in the intermediate reflecting cavity through two intermediate reflecting mirror seats; the terminal reflecting member comprises a terminal reflecting seat, a terminal reflecting cavity is arranged in the terminal reflecting seat, and the terminal reflecting mirror is fixed and installed in the terminal reflecting cavity through two terminal reflecting mirror seats; the cutting laser output by the cutting head is reflected by the primary reflecting mirror to form first reflected laser, the first reflected laser is irradiated to the intermediate reflecting mirror through the first hollow adjusting piece, the second reflected laser is formed by the intermediate reflecting mirror, the second reflected laser is irradiated to the terminal reflecting mirror through the second hollow adjusting piece, the terminal reflected laser is formed by the terminal reflecting mirror, and the terminal reflected laser is output through the light path outlet of the terminal reflecting member. The intermediate reflecting member and the terminal reflecting member are fixed and installed in the reflecting cavities through the mirror seats, and have the advantages of simple structure, convenient manufacturing and low cost.

[0007] Preferably, a protection lens is arranged at the light path outlet of the terminal reflecting member. In this way, the protection lens is arranged at the light path outlet of the terminal reflecting member, so that the laser output can be ensured, and dust can be prevented from entering the laser transmission mechanism of the utility model from the light path outlet of the terminal reflecting member and affecting the laser transmission. Further, the protection lens is fixed and installed at the light path outlet of the terminal reflecting member through a protection lens seat. In this way, the protection lens is fixed and installed at the light path outlet of the terminal reflecting member through the protection lens seat, so that the installation is simple and convenient, and the installation stability of the protection lens can be improved. Further preferably, the protection lens seat is fixed and installed on the terminal reflecting member through a fixing block, and a laser nozzle mounting seat is arranged on the side, away from the terminal reflecting member, of the protection lens seat. In this way, the protection lens seat is fixed and installed on the terminal reflecting member through the fixing block, so that the installation and replacement of the protection lens are facilitated; and the laser nozzle mounting seat is arranged on the side, away from the terminal reflecting member, of the protection lens seat, so that the laser nozzle is facilitated to be installed.

[0008] In addition, the utility model also proposes a cutting device, and the cutting device is equipped with any one of the above laser transmission mechanisms. In this way, the laser transmission mechanism is assembled in the cutting device of the utility model, so that the change range of the light path transmission angle of the cutting device of the utility model can be expanded, the application range of the cutting device of the utility model can be expanded, the output angle of the light path in the cutting device of the utility model can be conveniently adjusted, and the use is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 FIG. 2 is a structural schematic view of the laser transmission mechanism of the utility model when connected with the cutting head;

[0010] Figure 2 FIG. 3 is a structural schematic view of the laser transmission mechanism of the utility model when connected with the cutting head; Figure 1A-A cross-sectional structure in the figure. DETAILED DESCRIPTION

[0011] Hereinafter, the laser transmission mechanism and the cutting device provided with the laser transmission mechanism will be described in detail. Figure 1 and 2 The laser transmission mechanism and the cutting device provided with the laser transmission mechanism will be described in detail.

[0012] As Figure 1 and 2The utility model discloses laser transmission mechanism includes one -level hollow adjusting part 1 and two -level hollow adjusting part 2, the positioning end of one -level hollow adjusting part 1 is connected with cutting head 3, and the adjusting end of one -level hollow adjusting part 1 is connected with intermediate reflection piece 4, the center axis of light path export of intermediate reflection piece 4 is perpendicular with the center axis of light path export of cutting head 3, and intermediate mirror 41 in intermediate reflection piece 4 is opposite with primary mirror 31 in cutting head 3 and is set, and the positioning end of two -level hollow adjusting part 2 is connected with intermediate reflection piece 4, and the adjusting end of two -level hollow adjusting part 2 is connected with end reflection piece 5, and the center axis of light path export of end reflection piece 5 is perpendicular with the center axis of light path export of intermediate reflection piece 4, and end mirror 51 in end reflection piece 5 is opposite with intermediate mirror 41 and is set, when adjusting, one -level hollow adjusting part 1 drives intermediate reflection piece 4 to rotate around the center axis of light path export of cutting head 3, and two -level hollow adjusting part 2 drives end reflection piece 5 to rotate around the center axis of light path export of intermediate reflection piece 4. Preferably, the positioning end of one -level hollow adjusting part 1 is connected with cutting head 3 through one -level connecting seat 61, and the adjusting end of one -level hollow adjusting part 1 is connected with intermediate reflection piece 4 through one -level motor connecting seat 62, and the adjusting end of two -level hollow adjusting part 2 is connected with end reflection piece 5 through two -level motor connecting seat 63. In this way, one -level hollow adjusting part 1 and cutting head 3 are connected by one -level connecting seat 61, which can avoid the interference between one -level hollow adjusting part 1 and focusing mirror adjusting mechanism 32 arranged on cutting head 3, and affect the debugging of focusing mirror 33 in cutting head 3, one -level hollow adjusting part 1 and intermediate reflection piece 4 are connected by one -level motor connecting seat 62, and two -level hollow adjusting part 2 and end reflection piece 5 are connected by two -level motor connecting seat 63, which not only can replace one -level motor connecting seat 62 and two -level motor connecting seat 63 of corresponding specifications according to the use requirement, expand the application range of the utility model laser transmission mechanism, but also facilitate the maintenance personnel to disassemble intermediate reflection piece 4 and end reflection piece 5 when carrying out maintenance, improve the maintenance efficiency. Preferably, one -level hollow adjusting part 1 includes one -level hollow servo motor 11 and one -level bearing 12, and the one -level bearing 12 is located between the one -level hollow servo motor 11 and the intermediate reflection piece 4 and drives the intermediate reflection piece 4 to rotate under the drive of the one -level hollow servo motor 11, and the two -level hollow adjusting part 2 includes two -level hollow servo motor 21 and two -level bearing 22, and the two -level bearing 22 is located between the two -level hollow servo motor 21 and the end reflection piece 5 and drives the end reflection piece 5 to rotate under the drive of the two -level hollow servo motor 21. In this way, the one -level hollow adjusting part 1 drives the one -level bearing 12 to rotate by the one -level hollow servo motor 11, thereby driving the intermediate reflection piece 4 to rotate around the center axis of light path export of the cutting head 3, and the two -level hollow adjusting part 2 drives the two -level bearing 22 to rotate by the two -level hollow servo motor 21, thereby driving the end reflection piece 5 to rotate around the center axis of light path export of the intermediate reflection piece 4.Therefore, the laser transmission mechanism only needs to utilize the hollow servo motor to drive the bearing to rotate, so that the adjustment of the light path output angle of the laser output by the cutting head 3 can be completed, and the adjustment is simple, convenient and easy to control. Preferably, the first hollow adjusting part 1 comprises a first motor upper fixing seat 13, a first motor fixing plate 14 and a first motor lower fixing seat 15, the upper end of the first motor upper fixing seat 13 is connected with the first connecting seat 61, and the lower end of the first motor upper fixing seat 13 is connected with the first hollow servo motor 11 through the first motor fixing plate 14; the first motor lower fixing seat 15 is located between the first hollow servo motor 11 and the first motor connecting seat 62 and is connected with the intermediate reflecting part 4 through the first motor connecting seat 62; the second hollow adjusting part 2 comprises a second motor fixing plate 23, and the second motor fixing plate 23 is clamped between the intermediate reflecting part 4 and the second hollow servo motor 21 and connects the intermediate reflecting part 4 and the second hollow servo motor 21. In this way, the first hollow servo motor 11 is installed and fixed by using the first motor upper fixing seat 13, the first motor fixing plate 14 and the first motor lower fixing seat 15, and the second hollow servo motor 21 is installed and fixed by using the second motor fixing plate 23, so that the installation and fixation are simple and convenient. Preferably, the first hollow adjusting part 1 comprises a first motor protective cover 16, the first motor protective cover 16 covers the periphery of the first hollow servo motor 11, the first bearing 12, the first motor upper fixing seat 13, the first motor fixing plate 14 and the first motor lower fixing seat 15, and the upper end of the first motor protective cover 16 is connected with the first connecting seat 61; the second hollow adjusting part 2 comprises a second motor protective cover 24, the second motor protective cover 24 covers the periphery of the second hollow servo motor 21, the second bearing 22 and the second motor fixing plate 23, and the two ends of the second motor protective cover 24 are respectively connected with the intermediate reflecting part 4 and the second motor connecting seat 63. In this way, the first motor protective cover 16 is arranged in the first hollow adjusting part 1 to protect the first hollow servo motor 11 and the first bearing 12, and the second motor protective cover 24 is arranged in the second hollow adjusting part 2 to protect the second hollow servo motor 21 and the second bearing 22, so that the first hollow servo motor 11, the first bearing 12, the second hollow servo motor 21 and the second bearing 22 are prevented from being exposed to dust and even affecting the laser transmission.

[0013] As Figure 1 and 2As shown, the intermediate reflector 4 comprises an intermediate reflection seat 42, an intermediate reflection cavity 43 is arranged in the intermediate reflection seat 42, and the intermediate mirror 41 is fixedly installed in the intermediate reflection cavity 43 through two intermediate mirror seats 44; the end reflector 5 comprises an end reflection seat 52, an end reflection cavity 53 is arranged in the end reflection seat 52, and the end mirror 51 is fixedly installed in the end reflection cavity 53 through two end mirror seats 54; the cutting laser output by the cutting head 3 is reflected by the primary mirror 31 to form first reflected laser, the first reflected laser is irradiated to the intermediate mirror 41 after passing through the first hollow adjusting part 1, is reflected by the intermediate mirror 41 to form second reflected laser, the second reflected laser is irradiated to the end mirror 51 after passing through the second hollow adjusting part 2, is reflected by the end mirror 51 to form end reflected laser, and the end reflected laser is output through the light path outlet of the end reflector 5. Such intermediate reflector 4 and end reflector 5 respectively use the mirror seat to fixedly install the mirror in the reflection cavity, which is simple in structure, convenient to manufacture and low in cost. Preferably, the intermediate mirror seat 44 and the end mirror seat 54 are both L-shaped structures. Such mirror seat is simple in structure, convenient and fast to manufacture and fixedly install.

[0014] As shown in Figure 1 and 2 , the light path outlet of the end reflector 5 is provided with a protective lens 7. In this way, the protective lens 7 is arranged at the light path outlet of the end reflector 6, which can not only ensure the output of the laser, but also avoid dust from entering the laser transmission mechanism of the utility model from the light path outlet of the end reflector 5, thereby affecting the transmission of the laser. Preferably, the protective lens 7 is fixedly installed at the light path outlet of the end reflector 5 through a protective lens seat 81. In this way, the protective lens 7 is fixedly installed at the light path outlet of the end reflector 5 through the protective lens seat 81, which is simple and convenient to install and can improve the installation stability of the protective lens 7. Preferably, the protective lens seat 81 is fixedly installed on the end reflector 5 through a fixing block 82, and a laser nozzle mounting seat 83 is arranged on the side away from the end reflector 5 of the protective lens seat 81. In this way, the fixing block 82 is arranged on the end reflector 5 to fixedly install the protective lens seat 81, which is convenient for the installation and replacement of the protective lens 7; the laser nozzle mounting seat 83 is arranged on the side away from the end reflector 5 of the protective lens seat 81, which is convenient for installing the laser nozzle 84.

[0015] The utility model discloses laser transmission mechanism utilizes the first hollow adjusting part 1 to drive the middle reflection part 4 and the end reflection part 5 around the center axis of the light path export of cutting head 3, that is, drive the laser nozzle 84 at the light path export of end reflection part 5 around the center axis of the light path export of cutting head 3, utilize the second hollow adjusting part 2 to drive the end reflection part 5 around the center axis of the light path export of middle reflection part 4, that is, drive the laser nozzle 84 at the light path export of end reflection part 5 around the center axis of the light path export of middle reflection part 4. That is to say, after assembling the utility model discloses laser transmission mechanism in cutting device, when fixing the light path export of cutting head 3, that is, fixing the light path import, the utility model discloses laser transmission mechanism changes the transmission direction of laser according to laser refraction principle, and can drive the laser nozzle 84 at the light path export of end reflection part 5 around the center axis of the light path export of cutting head 3 or / and the center axis of the light path export of middle reflection part 4 according to need utilizing the first hollow adjusting part 1 or / and the second hollow adjusting part 2, and the direction of the output laser of laser nozzle 84 is adjusted. Therefore, by using the utility model discloses laser transmission mechanism, the range of the light path transmission angle of three-dimensional laser cutting device can be effectively increased, and more processing angles are provided for three-dimensional laser cutting device.

[0016] In addition, the laser transmission mechanism is assembled into the cutting device, which can expand the range of the light path transmission angle of the cutting device, thereby expanding the application range of the cutting device, and conveniently adjusting the output angle of the light path of the cutting device, and is convenient to use.

Claims

1. A laser delivery mechanism, characterized by, The laser transmission mechanism comprises a first hollow adjusting member and a second hollow adjusting member, the positioning end of the first hollow adjusting member is connected with the cutting head, the adjusting end of the first hollow adjusting member is connected with an intermediate reflecting member, the central axis of the light path outlet of the intermediate reflecting member is perpendicular to the central axis of the light path outlet of the cutting head, and the intermediate reflecting mirror in the intermediate reflecting member is oppositely arranged with the primary reflecting mirror in the cutting head; the positioning end of the second hollow adjusting member is connected with the intermediate reflecting member, the adjusting end of the second hollow adjusting member is connected with a terminal reflecting member, the central axis of the light path outlet of the terminal reflecting member is perpendicular to the central axis of the light path outlet of the intermediate reflecting member, and the terminal reflecting mirror in the terminal reflecting member is oppositely arranged with the intermediate reflecting mirror; when adjusting, the first hollow adjusting member drives the intermediate reflecting member to rotate around the central axis of the light path outlet of the cutting head, and the second hollow adjusting member drives the terminal reflecting member to rotate around the central axis of the light path outlet of the intermediate reflecting member.

2. The laser delivery mechanism of claim 1, wherein, The positioning end of the first hollow adjusting member is connected with the cutting head through a first connecting seat, and the adjusting end of the first hollow adjusting member is connected with the intermediate reflecting member through a first motor connecting seat; the adjusting end of the second hollow adjusting member is connected with the terminal reflecting member through a second motor connecting seat.

3. The laser delivery mechanism of claim 2, wherein, The first hollow adjusting member comprises a first hollow servo motor and a first bearing, the first bearing is located between the first hollow servo motor and the intermediate reflecting member and drives the intermediate reflecting member to rotate under the driving of the first hollow servo motor; the second hollow adjusting member comprises a second hollow servo motor and a second bearing, the second bearing is located between the second hollow servo motor and the terminal reflecting member and drives the terminal reflecting member to rotate under the driving of the second hollow servo motor.

4. The laser delivery mechanism of claim 3, wherein, The first hollow adjusting member comprises a first motor upper fixing seat, a first motor fixing plate and a first motor lower fixing seat, the upper end of the first motor upper fixing seat is connected with the first connecting seat, and the lower end of the first motor upper fixing seat is connected with the first hollow servo motor through the first motor fixing plate; the first motor lower fixing seat is located between the first hollow servo motor and the first motor connecting seat and is connected with the intermediate reflecting member through the first motor connecting seat; the second hollow adjusting member comprises a second motor fixing plate, and the second motor fixing plate is clamped between the intermediate reflecting member and the second hollow servo motor and connects the intermediate reflecting member and the second hollow servo motor.

5. The laser delivery mechanism of claim 4, wherein, The first hollow adjusting member comprises a first motor protective cover, which is arranged around the first hollow servo motor, the first bearing, the first motor upper fixing seat, the first motor fixing plate and the first motor lower fixing seat, and the upper end of the first motor protective cover is connected with the first connecting seat; the second hollow adjusting member comprises a second motor protective cover, which is arranged around the second hollow servo motor, the second bearing and the second motor fixing plate, and the two ends of the second motor protective cover are respectively connected with the intermediate reflecting member and the second motor connecting seat.

6. The laser delivery mechanism of any of claims 1-5, wherein, The intermediate reflecting member comprises an intermediate reflecting seat, in which an intermediate reflecting cavity is arranged, and the intermediate reflecting mirror is fixed in the intermediate reflecting cavity through two intermediate reflecting mirror seats; the end reflecting member comprises an end reflecting seat, in which an end reflecting cavity is arranged, and the end reflecting mirror is fixed in the end reflecting cavity through two end reflecting mirror seats; the cutting laser output by the cutting head is reflected by the primary reflecting mirror to form first reflected laser, the first reflected laser is irradiated to the intermediate reflecting mirror through the first hollow adjusting member, is reflected by the intermediate reflecting mirror to form second reflected laser, the second reflected laser is irradiated to the end reflecting mirror through the second hollow adjusting member, is reflected by the end reflecting mirror to form end reflected laser, and the end reflected laser is output through the light path outlet of the end reflecting member.

7. The laser delivery mechanism of any of claims 1-5, wherein, A protective lens is arranged at the light path outlet of the end reflecting member.

8. The laser delivery mechanism of claim 7, wherein, The protective lens is fixed at the light path outlet of the end reflecting member through a protective lens seat.

9. The laser delivery mechanism of claim 8, wherein, The protective lens seat is fixed on the end reflecting member through a fixing block, and a laser nozzle mounting seat is arranged on the side of the protective lens seat away from the end reflecting member.

10. A cutting device characterized by The cutting device is equipped with the laser transmission mechanism according to any one of claims 1-9.