Plate laser cutting equipment based on metal processing

Abstract

The invention relates to the technical field of metal cutting equipment, and discloses plate laser cutting equipment based on metal processing, which comprises a cutting machine main body, a laser spray head arranged at the top of the cutting machine main body, a pumping mechanism arranged at the front part of the laser spray head, and a switching mechanism arranged in the pumping mechanism and used for replacing a light source, the pumping mechanism comprises a shell arranged at the front part of the laser nozzle, a partition plate arranged in the shell, a bundling optical fiber arranged at the bottom of the partition plate, a plurality of positioning holes formed in the middle of the partition plate in a linear array manner, and a plurality of optical fibers arranged in the positioning holes, wherein the shell isolates a light source from the outside; the partition plate divides the interior of the shell into two layers; the positioning hole is matched with the position of the part in the hole in a constraint manner; and the reflector is arranged at the front part of the positioning hole. By arranging the pumping mechanism, integration of lasers of multiple wavelengths is achieved, the lasers of different wavelengths can pass through the same lens system, and the equipment structure is simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of metal cutting equipment, and particularly to a sheet laser cutting equipment based on metal processing. Background Art

[0002] Sheet laser cutting equipment is a key tool in metal processing. It uses a laser beam with a high energy density to perform non-contact cutting on metal sheets and can process complex shapes. Compared with traditional cutting methods, laser cutting has advantages such as high precision, high speed, and a small heat-affected zone, which can significantly improve processing efficiency and precision.

[0003] Traditional laser cutting equipment is widely used in the field of metal processing. However, due to the limitations of its structure and working principle, there are often some problems that cannot be ignored. For example, existing laser cutting equipment usually uses a light source with a fixed wavelength, which limits its ability to meet diverse processing requirements. Different materials have different absorption characteristics for lasers. For example, metal materials have a higher absorption rate for short-wavelength lasers and a higher reflectivity for long-wavelength lasers. However, a laser with a fixed wavelength cannot adjust the wavelength according to the absorption characteristics of the material, resulting in low processing efficiency or inability to meet specific processing requirements in some cases. In addition, the pump source in laser cutting equipment usually includes multiple groups of light-emitting components, and each group of components requires a corresponding lens to achieve beam focusing and shaping. This design makes the equipment structure complex, increases the cost, and is inconvenient for maintenance. Since each group of light-emitting components requires an independent lens system, the sharing of lenses cannot be achieved, which not only wastes resources but also limits the flexibility and scalability of the equipment. Summary of the Invention

[0004] In view of the problems in the prior art that the laser wavelength of laser cutting equipment is single and multiple groups of lenses are required, a sheet laser cutting equipment based on metal processing is proposed.

[0005] Its purpose is to enable the laser cutting equipment to be compatible with lasers of different wavelengths and to share a set of lens systems for different light sources.

[0006] The technical solution of the present invention is a sheet laser cutting equipment based on metal processing, including a cutting machine main body, a laser nozzle arranged on the top of the cutting machine main body, a pump mechanism arranged in front of the laser nozzle, and a switching mechanism arranged inside the pump mechanism for replacing the light source;

[0007] The pumping mechanism includes a housing disposed at the front of the laser nozzle, the housing isolating the light source from the outside, a partition disposed inside the housing, the partition dividing the interior of the housing into two layers, a bundled optical fiber disposed at the bottom of the partition, the bundled optical fiber converging light, a plurality of linear arrays of positioning holes opened in the middle of the partition, the positioning holes restricting the position of the components inside the holes, a reflecting mirror disposed in front of the positioning holes, the reflecting mirror capable of changing the optical path of the laser, a plurality of linear arrays of sliding grooves opened at the intervals of the positioning holes on the partition, the sliding grooves forming a moving channel for a characteristic trajectory, a collimating mirror disposed in front of the sliding grooves, the collimating mirror converting the transmitted laser into a collimated light beam, and a steering unit disposed at the bottom of the reflecting mirror for adjusting the position of the collimating mirror.

[0008] Further, the sliding groove is composed of a semi-circular groove in the middle section and straight grooves on both sides, and the diameter of the semi-circular groove is greater than the width of the reflecting mirror.

[0009] Further, the steering unit includes a housing disposed at the bottom of the refractive mirror, a bushing disposed on the side of the housing close to the collimating mirror, a wire coil disposed inside the housing, the bottom of the wire coil being rotatably connected to the housing, a first clamping block disposed at the bottom of the housing, a driven wheel disposed at the bottom of the wire coil, a short shaft disposed at the bottom of the collimating mirror, a second clamping block disposed at the bottom of the short shaft, a cable disposed at one end of the short shaft close to the housing, the end of the cable away from the short shaft being fixedly connected to the wire coil, a spring sleeved outside the cable, both ends of the spring being fixedly connected to the short shaft and the inner wall of the bushing respectively, a long shaft disposed at the rear of the housing, and a plurality of linear arrays of driving wheels disposed outside the long shaft, the driving wheels being meshed with the nearest driven wheels.

[0010] Further, short teeth are provided on one side of the first clamping block close to the short shaft, and a tooth groove is opened on one side of the second clamping block close to the bushing, and the short teeth and the tooth groove can cooperate with each other.

[0011] Further, the inner diameter of the bushing is adapted to the diameter of the short shaft, and a hole plate is provided on the side of the bushing close to the housing.

[0012] Further, the switching mechanism includes four electrodes disposed at the four corners of the partition, telescopic holes symmetrically opened on both sides of the partition, a laser assembly disposed inside the telescopic holes, a screw hole opened on the side of the laser assembly away from the reflecting mirror, a bolt disposed inside the screw hole, both ends of the bolt respectively penetrating through the front and rear parts of the housing, a pulley disposed at the end of the bolt away from the laser nozzle, a belt sleeved outside the pulley, both ends of the belt being respectively sleeved outside two pulleys, and a knob disposed on the top of the pulley close to the collimating mirror.

[0013] Further, the laser assembly is composed of two bases, and a plurality of laser diodes are linearly arrayed at the front parts of both bases.

[0014] Further, a protective case is provided at the front of the outer shell, and a connection hole is opened at the connection part between the protective case and the knob.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By setting up the pumping mechanism, the integration of multiple-wavelength lasers is achieved. This integration allows the device to select an appropriate laser wavelength for cutting according to the characteristics of different metal materials. Different metal materials have different absorption rates for lasers of different wavelengths. By selecting the appropriate wavelength, the cutting efficiency and accuracy can be improved, and the processing requirements of various metal materials can be better met.

[0017] 2. By setting up the switching mechanism, the rapid switching between different-wavelength lasers is achieved. This switching ability enables the device to select the most suitable laser wavelength according to the actual processing requirements. When processing different types of metal sheets, it can be adjusted to the optimal wavelength, thereby optimizing the cutting parameters and improving the processing efficiency. This wavelength switching mechanism enables the device to quickly adapt to different processing tasks, reduces the time waste caused by replacing equipment or adjusting parameters, improves the overall utilization rate and production efficiency of the device, and makes the operation more convenient and efficient.

[0018] 3. By setting up the steering unit, it is realized that different-wavelength lasers share a set of lens systems. In traditional laser cutting equipment, each wavelength of laser usually requires an independent lens system, which not only increases the complexity and volume of the equipment, but also raises the manufacturing cost and maintenance cost. However, in this embodiment, through a specific structural design, different-wavelength lasers can be focused and collimated through the same set of lens systems, thereby simplifying the equipment structure and reducing the number of optical elements used. This design reduces the manufacturing cost and maintenance cost of the equipment and improves the cost performance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the overall hydraulic cylinder body of the present invention;

[0020] Figure 2 is a connection schematic diagram of the pumping mechanism and the laser head of the present invention;

[0021] Figure 3 is a schematic diagram of the internal structure of the outer shell of the present invention;

[0022] Figure 4 is an exploded view of the pumping mechanism of the present invention;

[0023] Figure 5 is a schematic diagram of the partition structure of the present invention;

[0024] Figure 6 is a schematic diagram of the overall structure of the steering unit of the present invention;

[0025] Figure 7 Schematic diagram of the internal structure of the housing of the present invention;

[0026] Figure 8 Schematic diagram of the connection between the short shaft and the second clamping block of the present invention;

[0027] Figure 9 Schematic diagram of the connection between the driving wheel and the driven wheel of the present invention;

[0028] Figure 10 Schematic diagram of the connection between the bolt and the laser assembly of the present invention;

[0029] Figure 11 Schematic diagram of the electrode structure of the present invention.

[0030] In the figure:

[0031] 1. Cutting machine main body; 2. Laser nozzle; 3. Pumping mechanism; 4. Switching mechanism; 31. Outer shell; 32. Partition; 33. Bundled optical fiber; 34. Positioning hole; 35. Reflecting mirror; 36. Slide groove; 37. Collimating mirror; 38. Housing; 39. Bush; 310. Wire coil; 311. First clamping block; 312. Driven wheel; 313. Short shaft; 314. Second clamping block; 315. Cable; 316. Spring; 317. Long shaft; 318. Driving wheel; 41. Electrode; 42. Telescopic hole; 43. Laser assembly; 44. Threaded hole; 45. Bolt; 46. Belt pulley; 47. Belt; 48. Knob. Detailed implementation manners

[0032] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0033] Example 1, referring to Figures 1-11, which is the first embodiment of the present invention, provides a sheet laser cutting device based on metal processing, including a cutting machine main body 1, a laser nozzle 2 fixedly connected to the top of the cutting machine main body 1, and further including a pumping mechanism 3 installed in the front of the laser nozzle 2, and a switching mechanism 4 installed inside the pumping mechanism 3 for replacing the light source; the pumping mechanism 3 includes a housing 31 fixedly connected to the front of the laser nozzle 2, the housing 31 isolates the light source from the outside, a partition 32 fixedly connected inside the housing 31, the partition 32 divides the inside of the housing 31 into two layers, a beam collecting optical fiber 33 fixedly connected to the bottom of the partition 32, the beam collecting optical fiber 33 converges the light, a plurality of positioning holes 34 linearly arrayed in the middle of the partition 32, the positioning holes 34 constrain the position of the components inside the holes, a reflecting mirror 35 rotatably connected to the front of the positioning holes 34, the reflecting mirror 35 can change the optical path of the laser, a plurality of sliding grooves 36 linearly arrayed at the intervals of the positioning holes 34 on the partition 32, the sliding grooves 36 form a moving channel with a characteristic trajectory, a collimating mirror 37 slidably connected to the front of the sliding grooves 36, the collimating mirror 37 converts the transmitted laser into a collimated light beam, and a steering unit assembled at the bottom of the reflecting mirror 35 for adjusting the position of the collimating mirror 37.

[0034] Specifically, the housing 31 provides stable support for the pumping mechanism 3 by connecting with the laser nozzle 2. The partition 32 divides the inside of the housing 31 into two relatively independent spaces. The light emitted by different laser diodes is combined after being injected into the beam collecting optical fiber 33. The positioning holes 34 can constrain the position of the reflecting mirror 35 so that it can only move in place. The reflecting mirror 35 can change the path of the laser so that the laser is reflected to the beam collecting optical fiber 33. The sliding grooves 36 constrain the movement path of the collimating mirror 37. The light is converted into a collimated light beam after passing through the collimating mirror 37. The setting of the pumping mechanism 3 realizes the integration of lasers with multiple wavelengths. This integration allows the device to select a suitable laser wavelength for cutting according to the characteristics of different metal materials. Different metal materials have different absorption rates for lasers with different wavelengths. By selecting a suitable wavelength, the cutting efficiency and accuracy can be improved, and the processing requirements of various metal materials can be better met.

[0035] Refer to Figure 5 , the sliding groove 36 is composed of a semicircular groove in the middle section and straight grooves on both sides, and the diameter of the semicircular groove is larger than the width of the reflecting mirror 35.

[0036] Specifically, since the diameter of the semicircular groove is larger than that of the reflecting mirror 35, the collimating mirror 37 will not collide with the reflecting mirror 35 when moving along the sliding groove 36.

[0037] Refer to Figures 5-9, the steering unit includes a housing 38 fixedly connected to the bottom of the refracting mirror, a bushing 39 fixedly connected to the side of the housing 38 close to the collimating mirror 37, a wire reel 310 rotatably connected inside the housing 38, the bottom of the wire reel 310 is rotatably connected to the housing 38, a first clamping block 311 fixedly connected to the bottom of the housing 38, a driven wheel 312 fixedly connected to the bottom of the wire reel 310, a short shaft 313 fixedly connected to the bottom of the collimating mirror 37, a second clamping block 314 fixedly connected to the bottom of the short shaft 313, a cable 315 fixedly connected to one end of the short shaft 313 close to the housing 38, the end of the cable 315 away from the short shaft 313 is fixedly connected to the wire reel 310, a spring 316 sleeved outside the cable 315, the two ends of the spring 316 are respectively fixedly connected to the short shaft 313 and the inner wall of the bushing 39, a long shaft 317 rotatably connected to the rear of the housing 31, and a number of driving wheels 318 fixedly connected to the outside of the long shaft 317 in a linear array, and the driving wheel 318 is meshed with the nearest driven wheel 312.

[0038] Specifically, the top of the housing 38 abuts against the partition 32, and the housing 38 is kept fixed by friction. After the bushing 39 and the short shaft 313 are matched, they can transmit forces to each other. After the wire reel 310 rotates, it will wind up the cable 315. After the first clamping block 311 and the second clamping block 314 are matched, the housing 38 and the short shaft 313 will move synchronously. After the driven wheel 312 is stressed, it will drive the wire reel 310 to rotate. After the wire reel 310 rotates, it will wind up the cable 315. After the cable 315 is wound up, it will pull the short shaft 313 into the interior of the bushing 39. During the process of the shortening of the distance between the short shaft 313 and the bushing 39, the spring 316 will be compressed. After the driven wheel 312 is not interfered by external forces, the spring 316 will separate the short shaft 313 and the bushing 39. During the process of the separation of the short shaft 313 and the bushing 39, the reel is pulled by the cable 315 to unwind. The steering unit enables different wavelength lasers to share a set of lens systems. In traditional laser cutting equipment, each wavelength of laser usually needs to be equipped with an independent lens system, which not only increases the complexity and volume of the equipment, but also improves the manufacturing cost and maintenance cost. However, in this embodiment, through a specific structural design, different wavelength lasers can be focused and collimated through the same set of lens systems, thus simplifying the equipment structure and reducing the number of optical elements used. This design reduces the manufacturing cost and maintenance cost of the equipment and improves the cost performance of the equipment.

[0039] Refer to Figures 6-8 , a short tooth is provided on the side of the first clamping block 311 close to the short shaft 313, and a tooth groove is formed on the side of the second clamping block 314 close to the bushing 39, and the short tooth and the tooth groove can cooperate with each other.

[0040] Specifically, after the first clamping block 311 and the second clamping block 314 cooperate with each other, the stability of the connection between the short shaft 313 and the bushing 39 can be increased.

[0041] Reference Figure 6 and Figure 7 The inner diameter of the bushing 39 is adapted to the diameter of the short shaft 313, and a perforated plate is provided on one side of the bushing 39 close to the housing 38.

[0042] Specifically, the short shaft 313 can slide inside the bushing 39, and the cable 315 passes through the perforated plate and is connected to the short shaft 313 and the wire wheel.

[0043] Example 2, reference Figures 1-11 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the switching mechanism 4 includes four electrodes 41 fixedly connected to the four corners of the partition 32, telescopic holes 42 symmetrically opened on both sides of the partition 32, a laser assembly 43 slidably connected to the inner side of the telescopic holes 42, a threaded hole 44 opened on the side of the laser assembly 43 away from the mirror 35, a bolt 45 threadedly connected to the inner side of the threaded hole 44, both ends of the bolt 45 respectively penetrate through the front and rear parts of the housing 31, a pulley 46 fixedly connected to the end of the bolt 45 away from the laser nozzle 2, a belt 47 sleeved on the outside of the pulley 46, both ends of the belt 47 are respectively sleeved on the outside of the two pulleys 46, and a knob 48 fixedly connected to the top of the pulley 46 close to the collimator 37.

[0044] Specifically, the electrode 41 provides power for the laser assembly 43, and the telescopic hole 42 restricts the laser assembly 43 so that it can only move along a fixed trajectory. After the laser assembly 43 is powered on, it can generate laser. When the knob 48 rotates, the corresponding pulley 46 and the screw rotate. The rotation of the screw drives the laser assembly 43 to move along the axis of the screw. The two pulleys 46 are connected by the belt 47, so they will rotate synchronously and drive the two screws to rotate synchronously, realizing the simultaneous movement of the two laser assemblies 43. The switching mechanism 4 realizes the rapid switching between different wavelength lasers. This switching ability enables the device to select the most suitable laser wavelength according to the actual processing requirements. When processing different types of metal sheets, it can be adjusted to the optimal wavelength, thereby optimizing the cutting parameters and improving the processing efficiency. This wavelength switching mechanism enables the device to quickly adapt to different processing tasks, reduces the time waste caused by replacing the device or adjusting the parameters, improves the overall utilization rate and production efficiency of the device, and makes the operation more convenient and efficient.

[0045] Reference Figure 3 and Figure 4 The laser assembly 43 is composed of two bases, and a number of laser diodes are linearly arrayed on the front parts of both bases.

[0046] Specifically, two different wavelength laser diodes are installed on two layers of the same laser assembly 43, and the two laser assemblies 43 can have four wavelengths of laser.

[0047] Reference Figure 3 and Figure 4 At the front part of the housing 31, there is a protective case, and a connection hole is opened at the connection part between the protective case and the knob 48.

[0048] Specifically, the protective case covers the belt 47 and the pulley 46 inside to prevent them from being collided and affected by the outside world. The rest of the structure is the same as that of Embodiment 1.

[0049] Combining Embodiments 1-2, the working principle of the present invention: After the laser assembly 43 is energized through the electrode 41, the laser diode generates laser light and emits it to the collimating mirror 37, and then passes through the collimating mirror 37 and is emitted towards the reflecting mirror 35, and then is reflected by the reflecting mirror 35 to the beam combining optical fiber 33, and finally is emitted from the bottom of the laser nozzle 2 for cutting. When it is necessary to switch lasers of different wavelengths, by rotating the knob 48 to drive the two pulleys 46 and the corresponding bolts 45 to rotate, while the bolts 45 rotate, the laser assembly 43 moves. By controlling the position of the laser assembly 43, the lasers of different wavelengths can be aligned with the collimating mirror 37 when emitted, and are emitted towards the beam combining optical fiber 33 through the refractive mirror, completing the switching of the lasers on the same laser assembly 43;

[0050] When it is necessary to use the laser on another laser assembly 43, by rotating the long shaft 317, the driving wheel 318 and the driven wheel 312 drive the wire reel 310 to wind up. After the cable 315 is wound up, the short shaft 313 is pulled into the inner part of the bushing 39. While the short shaft 313 moves the rod, it drives the collimating mirror 37 to move. After the pulley 46 winds up the cable 315 until it is completely taut, the acting force during rotation will drive the short shaft 313, the bushing 39 and the housing 38 to rotate together. The housing 38 drives the reflecting mirror 35 to rotate, and the short shaft 313 drives the collimating mirror 37 to move along the sliding groove 36. After the collimating mirror 37 and the reflecting mirror 35 rotate 180 degrees, stop rotating the long shaft 317. At this time, the short shaft 313 will move away from the bushing 39 under the action of the spring 316 and finally stop at one end of the sliding groove 36 away from the knob 48. At this time, the laser emitted from the laser assembly 43 on the side away from the knob 48 will be guided by the collimating mirror 37 and the reflecting mirror 35 to the laser nozzle 2, realizing the switching of lasers of different wavelengths.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A sheet metal laser cutting device based on metal processing, comprising a cutting machine body (1), a laser nozzle (2) arranged on the top of the cutting machine body (1), characterized in that: It also includes a pump mechanism (3) arranged at the front of the laser nozzle (2), and a switching mechanism (4) arranged inside the pump mechanism (3) and used for replacing the light source; The pump mechanism (3) comprises a shell (31) arranged at the front of the laser nozzle (2), the shell (31) isolating the light source from the outside, a partition (32) arranged inside the shell (31), the partition (32) dividing the inside of the shell (31) into two layers, a bunching optical fiber (33) arranged at the bottom of the partition (32), the bunching optical fiber (33) converges the light, and a plurality of linear arrays of positioning holes (34) are provided in the middle of the partition (32), the positioning holes (34) constrain the components fitted in the holes. The invention relates to a laser beam transmission device and a laser beam transmission device. The laser beam transmission device comprises a plurality of linear array slide grooves (36) provided on the partition plate (32) at the interval between the positioning holes (34), a reflector (35) provided in front of the positioning holes (34), the reflector (35) being capable of changing the optical path of the laser beam, a plurality of linear array slide grooves (36) provided on the partition plate (32) at the interval between the positioning holes (34), the slide grooves (36) forming a moving channel of a characteristic track, a collimator mirror (37) provided in front of the slide grooves (36), the collimator mirror (37) converting the transmitted laser beam into a collimated light beam, and a steering unit provided at the bottom of the reflector mirror (35) for adjusting the position of the collimator mirror (37).

2. The sheet metal laser cutting device based on metal processing according to claim 1, characterized in that: The slide groove (36) consists of a semicircular groove in the middle section and straight grooves on both sides, and the diameter of the semicircular groove is greater than the width of the reflector (35).

3. The sheet metal laser cutting device based on metal processing according to claim 1, characterized in that: The steering unit comprises a housing (38) arranged at the bottom of the refractor, a shaft sleeve (39) arranged at a side of the housing (38) close to the collimator (37), a wire reel (310) arranged inside the housing (38), the bottom of the wire reel (310) being rotatably connected to the housing (38), a first clamping block (311) arranged at the bottom of the housing (38), a driven wheel (312) arranged at the bottom of the wire reel (310), a short shaft (313) arranged at the bottom of the collimator (37), a second clamping block (314) arranged at the bottom of the short shaft (313), and a second clamping block (315) arranged at the bottom of the short shaft (315). The invention relates to a cable (315) at one end of the housing (38) close to the short shaft (313), the end of the cable (315) away from the short shaft (313) is fixedly connected to the wire reel (310), a spring (316) is sleeved on the outside of the cable (315), the two ends of the spring (316) are respectively fixedly connected to the short shaft (313) and the inner wall of the sleeve (39), a long shaft (317) is arranged at the rear of the housing (31), and a plurality of linear arrays of driving wheels (318) are arranged on the outside of the long shaft (317), and the driving wheel (318) is meshed and connected with the nearest driven wheel (312).

4. The sheet metal laser cutting device based on metal processing according to claim 3, characterized in that: The first clamping block (311) is provided with short teeth on one side close to the short shaft (313), and the second clamping block (314) is provided with tooth grooves on one side close to the shaft sleeve (39), and the short teeth and the tooth grooves can cooperate with each other.

5. The sheet metal laser cutting device based on metal processing according to claim 3, characterized in that: The inner diameter of the shaft sleeve (39) is adapted to the diameter of the short shaft (313), and a perforated plate is provided on one side of the shaft sleeve (39) close to the housing (38).

6. The sheet metal laser cutting device based on metal processing according to claim 1, characterized in that: The switching mechanism (4) comprises four electrodes (41) arranged at the four corners of the partition (32), telescopic holes (42) symmetrically arranged on both sides of the partition (32), a laser assembly (43) arranged inside the telescopic hole (42), a screw hole (44) arranged on the side of the laser assembly (43) away from the reflector (35), a bolt (45) arranged inside the screw hole (44), the two ends of the bolt (45) respectively passing through the front and rear parts of the housing (31), a pulley (46) arranged at the end of the bolt (45) away from the laser nozzle (2), a belt (47) sleeved on the outside of the pulley (46), the two ends of the belt (47) respectively sleeved on the outside of the two pulleys (46), and a knob (48) arranged on the top of the pulley (46) on the side close to the collimator (37).

7. The sheet metal laser cutting device based on metal processing according to claim 6, characterized in that: The laser assembly (43) consists of two bases, and the front of the two bases are each provided with a plurality of laser diodes in a linear array.

8. The sheet metal laser cutting device based on metal processing according to claim 6, characterized in that: A protective shell is provided at the front of the housing (31), and a connecting hole is provided at the connection between the protective shell and the knob (48).

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