Laser cutting device for processing prism raw materials

Abstract

The invention relates to the technical field of prism processing, and discloses a laser cutting device for processing prism raw materials, comprising a processing table, a feeding mechanism, a laser cutting mechanism, and a limiting mechanism; a laser cutting component is designed to be able to rotate 90 degrees, and an infrared laser and a carbon dioxide laser are respectively installed on the laser cutting head, and the prism raw materials are firstly cut by the infrared laser, thereby avoiding the wear caused by contact with the workpiece in the traditional cutting method, and improving the cutting speed and cutting accuracy, and then the carbon dioxide laser is used for secondary scanning, and the scanning area absorbs laser energy and then breaks due to heat, thereby achieving splitting, ensuring the flatness and smoothness of the split mouth, thereby improving the cutting efficiency of the prism raw materials, and having a high yield rate, and the edge collapse requirement can be controlled within 50 microns, the problem of angle collapse is eliminated, and the cutting verticality is controlled within 5′, effectively ensuring the quality of the post-process.

Description

Technical Field

[0001] The present invention relates to the technical field of prism processing, in particular to the technical field of laser cutting for prism raw material processing, and specifically to a laser cutting device for prism raw material processing. Background Art

[0002] Prism processing is a precision optical manufacturing process, mainly used in the manufacture of optical instruments and equipment. Prisms are usually made of glass or crystal materials that need to meet specific optical and mechanical performance requirements.

[0003] Laser cutting of prism raw material processing uses a high-power density laser beam to irradiate the material to be cut, so that the material is quickly heated to the vaporization temperature, evaporated to form holes, and as the beam moves on the material, the holes continuously form a very narrow slit (such as about 0.1mm) to complete the cutting of the material.

[0004] After searching, the patent with application number CN202110900400.8 discloses a method for laser cutting prisms. The method for laser cutting prisms includes the following steps: placing the prism body on the platform, and taking a side of the prism body that can cover all sides as the incident surface, and the incident surface is facing the first laser; adjusting the laser focal length and processing parameters of the first laser; setting the first cutting path required for the prism body, and the starting point of the first cutting path is the axis of the prism body; controlling the laser beam emitted by the first laser to move along the first cutting path, and cutting the prism body to separate the prism product from the prism body. When the first laser of this application cuts the prism body, even if the laser incident on the side of the prism body is reflected and irradiated to the other side, it will not cut the part that has not been cut by the first laser, so that the first laser can be interrupted when cutting the other side of the prism body, so that the cut end faces of the prism body and the prism product are flat.

[0005] At present, the inner circle cutting technology is also used to cut the prism raw materials. The prism raw materials need to be bonded together and then cut by a blade. The feed speed is slow, the inner circle cutting method is inefficient, and the cut yield is low. Therefore, we need to propose a laser cutting device for processing prism raw materials. Summary of the invention

[0006] The purpose of the present invention is to provide a laser cutting device for processing prism raw materials. The laser cutting component is designed to be able to rotate 90°, and an infrared laser and a carbon dioxide laser are respectively installed on the laser cutting head. The prism raw material is first cut by the infrared laser, which avoids the wear caused by contact with the workpiece in the traditional cutting method and improves the cutting speed and cutting accuracy. The carbon dioxide laser is then used for a second scan. The scanned area absorbs laser energy and then breaks due to heat, thereby achieving fragmentation and ensuring the flatness and smoothness of the fragmentation mouth, thereby improving the cutting efficiency of the prism raw material and achieving a high yield rate. The edge chipping requirement can be controlled within 50 microns, the problem of angle chipping is eliminated, and the cutting verticality is controlled within 5′, effectively ensuring the quality of the post-process to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser cutting device for processing prism raw materials, comprising a processing table, a feeding mechanism installed on the processing table for driving the loading and unloading of prism raw materials, a laser cutting mechanism for realizing the cutting of prism raw materials, and a limiting mechanism for limiting the side edge of the prism raw materials;

[0008] The laser cutting mechanism comprises a cover shell slidably mounted on a processing table, a laser cutting assembly capable of 90° rotation is rotatably mounted inside the cover shell, the laser cutting assembly comprises a cylinder, a lead screw is rotatably mounted inside the cylinder, a first motor for driving the lead screw to rotate is mounted at one end of the cylinder, a plurality of laser cutting heads with adjustable spacing are mounted on the outer wall of the lead screw, and the plurality of laser cutting heads are arranged at equal spacings;

[0009] The laser cutting head includes an annular mounting seat, an outer wall of which is mounted with a vertically arranged infrared laser and a carbon dioxide laser, an arc plate is slidably arranged on the top of the mounting seat, a limiting column is connected to the top of the arc plate, a limiting hole is provided on the cylinder, and the limiting column is slidably installed inside the limiting hole.

[0010] Preferably, the laser cutting mechanism further comprises two parallel linear modules mounted on the processing table, and an L-shaped support plate is mounted on the slide seat of the linear modules.

[0011] Preferably, a slot is provided on the support plate, a plug is connected to the bottom of the cover shell, the plug is slidably inserted into the slot, a right-angle plate is connected to the side of the cover shell, a second cylinder is installed on the support plate, and one end of the piston rod of the second cylinder is connected to the right-angle plate.

[0012] Preferably, a protective cover is installed on one side of the cover shell, and a driving assembly for driving the laser cutting assembly to rotate is installed inside the protective cover, and the driving assembly includes a worm rotatably arranged inside the protective cover.

[0013] Preferably, a second motor for driving the worm to rotate is installed on the outer side of the protective cover, a connecting column is connected to the axis of the other end of the cylinder, a worm wheel is sleeved on the outer wall of the connecting column, and the worm wheel is meshed with the worm.

[0014] Preferably, a second slide groove is provided on the top of the mounting seat, a second sliding block is connected to the inner top of the arc-shaped plate, and the second sliding block is slidably mounted inside the second slide groove.

[0015] Preferably, the feeding mechanism includes a fixed frame fixed on the processing table, a through hole is opened in the side wall of the fixed frame, a first cylinder is installed on the top of the fixed frame, one end of the piston rod of the first cylinder is connected to a first mounting frame slidably installed inside the through hole, and a plurality of synchronously rotating feeding rollers are arranged inside the first mounting frame.

[0016] Preferably, the lower ends of the two inner side walls of the fixing frame are connected with springs, one end of the spring is connected with a limiting plate, and the limiting plate is configured as a limiting plate with a trapezoidal surface.

[0017] Preferably, a through hole is opened on the surface of the processing table, and a plurality of rollers are rotatably arranged inside the through hole, and the height of the rollers is flush with the height of the surface of the processing table.

[0018] Preferably, the limiting mechanism includes two vertical plates fixed on the processing table, a third cylinder is installed on one side of the vertical plate, one end of the piston rod of the third cylinder is connected to the second mounting frame, a plurality of limiting rollers are rotatably installed inside the second mounting frame, a first slide block is connected to the bottom of the second mounting frame, a first slide groove is opened on the processing table, and the first slide block is slidably installed inside the first slide groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention adopts a design that the laser cutting assembly can rotate 90 degrees, and an infrared laser and a carbon dioxide laser are installed on the laser cutting head respectively. The infrared laser is first used to cut the prism raw material, thereby avoiding the wear caused by contact with the workpiece in the traditional cutting method, and improving the cutting speed and cutting accuracy. Then, the carbon dioxide laser is used for secondary scanning. The scanning area absorbs the laser energy and then breaks due to heat, thereby achieving the split, ensuring the flatness and smoothness of the split mouth, thereby improving the cutting efficiency of the prism raw material, and the yield rate is high. The edge collapse requirement can be controlled within 50 microns, the problem of angle collapse is eliminated, and the cutting verticality is controlled within 5′, effectively ensuring the quality of the post-process;

[0021] 2. The present invention uses the design of the feeding mechanism to enable the first cylinder to drive the first mounting frame and multiple feeding rollers to rise and fall, thereby realizing the loading and unloading of prism raw materials of different thicknesses, and by driving the multiple feeding rollers to rotate, the prism raw materials are automatically loaded and unloaded, thereby improving the automation degree of the device and thus improving the cutting efficiency;

[0022] 3. Through the design of the limiting mechanism, the present invention can drive the second mounting frame to move after the prism raw material is loaded, so as to drive the limiting rollers in the two second mounting frames to approach and abut against the side of the prism raw material, thereby limiting the prism raw materials of different widths, ensuring the stability during the laser cutting process, and thus improving the cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the processing table of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the laser cutting mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the laser cutting assembly of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the laser cutting head of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the limiting mechanism of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the screw rod of the present invention.

[0031] In the figure: 1, processing table; 11, through hole; 12, roller; 13, first slide; 2, feeding mechanism; 21, fixing frame; 22, first cylinder; 23, through hole; 24, spring; 25, limit plate; 26, first mounting frame; 27, feeding roller; 3, laser cutting mechanism; 31, cover; 33, plug column; 34, right angle plate; 35, laser cutting assembly; 351, cylinder; 352, limit hole; 353, connecting column; 354, first motor; 355, screw rod; 356, laser cutting head; 3 561. mounting seat; 3562. infrared laser; 3563. carbon dioxide laser; 3564. second slide; 3565. arc plate; 3566. limiting column; 3567. second slider; 357. worm gear; 358. second motor; 359. worm; 36. protective cover; 37. linear module; 38. support plate; 39. second cylinder; 310. slot; 4. limiting mechanism; 41. second mounting frame; 42. vertical plate; 43. third cylinder; 44. limiting roller; 45. first slider. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-8 The present invention provides a technical solution: a laser cutting device for processing prism raw materials, comprising a processing table 1, a feeding mechanism 2 installed on the processing table 1 for driving the loading and unloading of prism raw materials, a laser cutting mechanism 3 for realizing the cutting of prism raw materials, and a limiting mechanism 4 for limiting the side of the prism raw materials;

[0034] The feeding mechanism 2 can realize loading and unloading of prism raw materials of different thicknesses and widths, which increases the application scope of the device. The laser cutting mechanism 3 first uses infrared light for cutting, which avoids wear caused by contact with the workpiece in the traditional cutting method and improves the cutting speed and cutting accuracy. Then, the carbon dioxide laser 3563 is used for secondary scanning. The scanning area absorbs laser energy and then breaks due to heat, thereby achieving fragmentation and ensuring the flatness and smoothness of the fragmentation mouth, thereby improving the cutting efficiency of the prism raw materials and having a high yield rate. The edge chipping requirement can be controlled within 50 microns, the problem of angle chipping is eliminated, and the cutting verticality is controlled within 5′, effectively ensuring the quality of the post-process.

[0035] The laser cutting mechanism 3 includes a housing 31 slidably mounted on the processing table 1. The housing 31 is in the shape of a "冂"-type housing. Inside the housing 31, a laser cutting assembly 35 that can rotate 90° is rotatably installed. Through the 90° rotation design of the laser cutting assembly 35, the switching between infrared light cutting and carbon dioxide laser 3563 cutting is realized, improving the cutting efficiency of the device.

[0036] As Figure 4 shown, the laser cutting assembly 35 includes a cylinder 351. The bottom of the cylinder 351 is designed to be open to prevent interference with the laser cutting head 356. Inside the cylinder 351, a lead screw 355 is rotatably installed. Specifically, the middle part of the lead screw 355 is a smooth rod, and there are two thread parts with different pitches from the smooth rod part to the end of the lead screw 355. The pitch of the thread part far from the smooth rod is twice the pitch of the thread part near the smooth rod.

[0037] One end of the cylinder 351 is equipped with a first motor 354 for driving the lead screw 355 to rotate. A plurality of laser cutting heads 356 with adjustable spacing are installed on the outer wall of the lead screw 355, and the plurality of laser cutting heads 356 are arranged at equal intervals. Optionally, there are five laser cutting heads 356. One laser cutting head 356 in the middle is fixed on the smooth rod and does not move. The other four laser cutting heads 356 are threadedly connected to the lead screw 355. When the lead screw 355 rotates, the moving distance of the laser cutting head 356 on the small pitch thread part is half of the moving distance of the laser cutting head 356 on the large pitch thread part, so that the equal spacing adjustment between the five laser cutting heads 356 can be realized.

[0038] The laser cutting head 356 includes an annular mounting seat 3561. An infrared laser 3562 and a carbon dioxide laser 3563 are vertically installed on the outer wall of the mounting seat 3561. When infrared light irradiates the surface of the prism raw material, its high energy density can instantly heat the prism raw material to the melting or gasification state. Infrared light cutting does not require direct contact with the material, avoiding wear caused by contact with the workpiece in traditional cutting methods. At the same time, due to the high focusability and high energy density of the laser, higher cutting speed and higher precision can be achieved.

[0039] The carbon dioxide laser 3563裂片 (I'm not sure what "裂片" exactly means here in English, maybe "裂片" can be translated as "裂片" or "chip off" or something more specific depending on the context. For now, I'll keep it as is) is to utilize the high energy of the laser to continuously generate high-temperature oscillations on the surface of the prism raw material through the carbon dioxide laser 3563, causing stress cracks on the surface of the object and finally achieving the purpose of裂片. On the initial crack or scribed area formed by infrared light cutting, the carbon dioxide laser 3563 is used for secondary scanning. After the scanning area absorbs the laser energy, it is heated and fractured, thus realizing裂片. The carbon dioxide laser 3563裂片 technology has the characteristics of smooth and burr-free裂片 openings and will not damage the surface of the prism raw material.

[0040] That is, the angle between the infrared laser 3562 and the carbon dioxide laser 3563 is 90°, and an arc plate 3565 is slidably provided on the top of the mounting seat 3561, and the top of the arc plate 3565 is connected to a limiting column 3566, and a limiting hole 352 is provided on the cylinder 351, and the limiting column 3566 is slidably installed inside the limiting hole 352. When the laser cutting head 356 moves on the screw rod 355, the limiting column 3566 is driven to move inside the limiting hole 352. Through the design of the arc plate 3565 and the limiting hole 352, the laser cutting head 356 can be switched between the infrared laser 3562 and the carbon dioxide laser 3563 while adjusting the spacing.

[0041] The working principles and internal structures of the infrared laser 3562 and the carbon dioxide laser 3563 are both prior arts and are common knowledge to technicians in the relevant fields, and will not be elaborated in this application.

[0042] The laser cutting mechanism 3 further comprises two parallel linear modules 37 mounted on the processing table 1 , and an L-shaped support plate 38 is mounted on the slide seat of the linear module 37 .

[0043] A slot 310 is provided on the support plate 38, and a plug post 33 is connected to the bottom of the cover shell 31. The plug post 33 is slidably inserted into the inside of the slot 310. A right-angle plate 34 is connected to the side of the cover shell 31. A second cylinder 39 is installed on the support plate 38, and one end of the piston rod of the second cylinder 39 is connected to the right-angle plate 34. The cover shell 31 can be driven to rise and fall by the second cylinder 39, thereby realizing the height adjustment of the laser cutting head 356, which is convenient for cutting prism materials of different thicknesses.

[0044] A protective cover 36 is installed on one side of the cover shell 31 , and a driving assembly for driving the laser cutting assembly 35 to rotate is installed inside the protective cover 36 . The driving assembly includes a worm 359 rotatably arranged inside the protective cover 36 .

[0045] A second motor 358 driving the worm 359 to rotate is installed on the outer side of the protective cover 36 . A connecting column 353 is connected to the axis of the other end of the cylinder 351 . A worm wheel 357 is sleeved on the outer wall of the connecting column 353 . The worm wheel 357 meshes with the worm 359 .

[0046] The second motor 358 drives the connecting column 353 to rotate 90° through the worm gear 357 and the worm 359, and the connecting column 353 drives the cylinder 351 to rotate, thereby driving the laser cutting head 356 inside the cylinder 351 to rotate 90°, thereby realizing the position switching of the infrared laser 3562 and the carbon dioxide laser 3563, and through the self-locking effect of the worm gear 357 and the worm 359, the infrared laser 3562 and the carbon dioxide laser 3563 are prevented from automatically deflecting slightly during the cutting process.

[0047] A second slide groove 3564 is provided on the top of the mounting seat 3561, and a second slider 3567 is connected to the inner top of the arc plate 3565. The second slider 3567 is slidably installed inside the second slide groove 3564 to facilitate the switching between the infrared laser 3562 and the carbon dioxide laser 3563. The arc plate 3565 does not interfere with the infrared laser 3562 and the carbon dioxide laser 3563 during the movement.

[0048] The feeding mechanism 2 includes a fixed frame 21 fixed on the processing table 1, a through hole 23 is provided on the side wall of the fixed frame 21, a first cylinder 22 is installed on the top of the fixed frame 21, one end of the piston rod of the first cylinder 22 is connected to a first mounting frame 26 slidably mounted inside the through hole 23, the first cylinder 22 drives the first mounting frame 26 to rise and fall, so as to facilitate loading and unloading of prism raw materials of different thicknesses, and a plurality of synchronously rotating feeding rollers 27 are arranged inside the first mounting frame 26, and the feeding rollers 27 drive the prism raw materials to move. The plurality of synchronously rotating feeding rollers 27 are driven by belts and pulleys and driven by a motor.

[0049] The lower ends of the two inner side walls of the fixing frame 21 are connected to springs 24, and one end of the spring 24 is connected to a limiting plate 25. The limiting plate 25 is set to have a trapezoidal surface to limit the prism materials of different widths. When loading, the side of the prism material contacts the limiting plate 25, pushing the limiting plate 25 to squeeze the spring 24, and the limiting plate 25 is pressed against the two sides of the prism material to achieve stability in the prism material loading process.

[0050] A through hole 11 is provided on the surface of the processing table 1, and a plurality of rollers 12 are rotatably arranged inside the through hole 11. The height of the rollers 12 is flush with the height of the surface of the processing table 1 to prevent the prism raw materials from rubbing against the surface of the processing table 1 when loading and unloading, and to ensure smooth loading and unloading of the prism raw materials.

[0051] The limiting mechanism 4 includes two parallel vertical plates 42 fixed on the processing table 1, and a third cylinder 43 is installed on one side of each vertical plate 42. One end of the piston rod of the third cylinder 43 is connected to the second mounting frame 41. A plurality of limiting rollers 44 are rotatably installed inside the second mounting frame 41. The bottom of the second mounting frame 41 is connected to a first slide block 45. The processing table 1 is provided with a first slide groove 13. The first slide block 45 is slidably installed inside the first slide groove 13 to ensure the stability of the movement of the second mounting frame 41. The third cylinder 43 drives the limiting roller 44 to approach and contact the side of the prism raw material, so as to limit the prism raw materials of different widths and ensure the stability of the prism raw materials.

[0052] Optionally, the surface of the roller 12, the surface of the feeding roller 27, and the surface of the limiting roller 44 are all provided with a silicone rubber sleeve to prevent damage to the surface of the prism raw material.

[0053] When in use, the prism material to be cut is placed on the processing table 1 and passes through the bottom of the feeding mechanism 2. The side of the prism material contacts the limit plate 25, pushing the limit plate 25 to squeeze the spring 24. The limit plate 25 abuts against both sides of the prism material to achieve stability in the prism material feeding process. Then, the first cylinder 22 drives the feeding roller 27 to move downward and contact the surface of the prism material, and then drives the feeding roller 27 to rotate. Under the friction between the feeding roller 27 and the surface of the prism material, the prism material is driven to be fed.

[0054] When the prism material moves to the bottom of the laser cutting mechanism 3, the third cylinder 43 drives the limiting roller 44 to approach and contact the side of the prism material, thereby limiting the position of the prism material and ensuring the stability of the prism material.

[0055] Then the second cylinder 39 drives the cover 31 to rise and fall, and then drives the laser cutting head 356 to rise and fall, so as to adjust the height of the laser cutting head 356 according to the thickness of the prism raw material;

[0056] Then, the spacing between the multiple laser cutting heads 356 is adjusted according to the required prism width, and the first motor 354 drives the lead screw 355 to rotate, thereby driving the multiple laser cutting heads 356 on the lead screw 355 to move.

[0057] Then the linear module 37 drives the housing 31 to move, so that the laser cutting head 356 is located at the end of the prism material, and the infrared laser 3562 is activated to emit infrared light to start laser cutting of the prism material, and during the cutting process, the linear module 37 drives the infrared laser 3562 to move;

[0058] After the infrared light cutting is completed, the second motor 358 drives the connecting column 353 to rotate 90° through the worm gear 357 and the worm 359, and the connecting column 353 drives the cylinder 351 to rotate, thereby driving the laser cutting head 356 inside the cylinder 351 to rotate 90°, thereby realizing the position switching of the carbon dioxide laser 3563, making the head of the carbon dioxide laser 3563 face downward, and enabling the carbon dioxide laser 3563 to perform a second scan. The scanning area absorbs the laser energy and breaks due to heat, thereby achieving fragmentation, completing the laser cutting operation of the prism raw material.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cutting device for processing prism raw materials, characterized in that: It comprises a processing table (1), a feeding mechanism (2) installed on the processing table (1) and used for driving the loading and unloading of prism raw materials, a laser cutting mechanism (3) for realizing the cutting of the prism raw materials, and a limiting mechanism (4) for limiting the side edge of the prism raw materials; The laser cutting mechanism (3) comprises a cover (31) slidably mounted on a processing table (1); a laser cutting assembly (35) capable of 90° rotation is rotatably mounted inside the cover (31); the laser cutting assembly (35) comprises a cylinder (351); a screw rod (355) is rotatably mounted inside the cylinder (351); a first motor (354) for driving the screw rod (355) to rotate is mounted at one end of the cylinder (351); a plurality of laser cutting heads (356) with adjustable spacing are mounted on the outer wall of the screw rod (355); and the plurality of laser cutting heads (356) are arranged at equal spacings. The laser cutting head (356) comprises an annular mounting seat (3561), an outer wall of the mounting seat (3561) is mounted with a vertically arranged infrared laser (3562) and a carbon dioxide laser (3563), a curved plate (3565) is slidably arranged on the top of the mounting seat (3561), a limiting column (3566) is connected to the top of the curved plate (3565), a limiting hole (352) is provided on the cylinder (351), and the limiting column (3566) is slidably mounted inside the limiting hole (352); A protective cover (36) is installed on one side of the housing (31), and a driving assembly for driving the laser cutting assembly (35) to rotate is installed inside the protective cover (36), and the driving assembly includes a worm (359) rotatably arranged inside the protective cover (36); A second motor (358) for driving the worm (359) to rotate is installed on the outer side of the protective cover (36); a connecting column (353) is connected to the axis of the other end of the cylinder (351); a worm wheel (357) is sleeved on the outer wall of the connecting column (353); and the worm wheel (357) is meshed with the worm (359); A second slide groove (3564) is provided at the top of the mounting seat (3561), and a second slider (3567) is connected to the inner top of the arc plate (3565), and the second slider (3567) is slidably installed inside the second slide groove (3564).

2. The laser cutting device for prism raw material processing according to claim 1, characterized in that: The laser cutting mechanism (3) further comprises two parallel linear modules (37) mounted on the processing table (1), and an L-shaped support plate (38) is mounted on the slide seat of the linear module (37).

3. The laser cutting device for prism raw material processing according to claim 2, characterized in that: The support plate (38) is provided with a slot (310), the bottom of the cover shell (31) is connected with a plug post (33), the plug post (33) is slidably inserted into the slot (310), the side of the cover shell (31) is connected with a right-angle plate (34), the support plate (38) is installed with a second cylinder (39), and one end of the piston rod of the second cylinder (39) is connected to the right-angle plate (34).

4. The laser cutting device for prism raw material processing according to claim 1, characterized in that: The feeding mechanism (2) comprises a fixed frame (21) fixed on the processing table (1), a through hole (23) is provided on the side wall of the fixed frame (21), a first cylinder (22) is installed on the top of the fixed frame (21), one end of the piston rod of the first cylinder (22) is connected to a first mounting frame (26) slidably mounted inside the through hole (23), and a plurality of synchronously rotating feeding rollers (27) are arranged inside the first mounting frame (26).

5. The laser cutting device for prism raw material processing according to claim 4, characterized in that: The lower ends of the two inner side walls of the fixing frame (21) are both connected to springs (24), one end of the spring (24) is connected to a limiting plate (25), and the limiting plate (25) is configured as a limiting plate with a trapezoidal surface.

6. The laser cutting device for prism raw material processing according to claim 1, characterized in that: A through hole (11) is provided on the surface of the processing table (1), and a plurality of rollers (12) are rotatably arranged inside the through hole (11), wherein the height of the rollers (12) is flush with the height of the surface of the processing table (1).

7. The laser cutting device for prism raw material processing according to claim 1, characterized in that: The limiting mechanism (4) comprises two vertical plates (42) fixed on the processing table (1), a third cylinder (43) is installed on one side of the vertical plate (42), one end of the piston rod of the third cylinder (43) is connected to a second mounting frame (41), a plurality of limiting rollers (44) are rotatably installed inside the second mounting frame (41), a first sliding block (45) is connected to the bottom of the second mounting frame (41), a first sliding groove (13) is opened on the processing table (1), and the first sliding block (45) is slidably installed inside the first sliding groove (13).

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