A pre-cutting device for special steel processing

Abstract

The present invention relates to the technical field of laser cutting processing equipment, specifically a pre-cutting device for special steel processing, including an assembly side frame, a side mounting frame fixedly installed on the top of the assembly side frame, a transverse sliding rail installed transversely between the side mounting frames, a cutting instrument assembly slidably connected to the transverse sliding rail, and a first transverse assembly plate fixedly installed on the top of the cutting instrument assembly. Accurately adjusting the cutting angle can make the cutting edge of the special steel smoother and smoother, which is not only more beautiful in appearance, but also can reduce stress concentration caused by irregular edges during subsequent processing and use, and improve the overall strength and stability of special steel parts. Adjusting the cutting angle can optimize the heat conduction path during the cutting process, thereby reducing the range of the heat-affected zone. The appropriate cutting angle can make the contact between the cutter and the special steel more reasonable, thereby reducing the resistance during the cutting process.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting processing equipment, in particular to a pre-cutting device for special steel processing. Background Art

[0002] Special steel pre-cutting is the operation of cutting special steel in advance before further processing or use. Special steel often requires specific size specifications in different application scenarios. Through pre-cutting, special steel can be processed into a size that meets the design requirements so that subsequent assembly, welding and other processes can proceed smoothly.

[0003] Laser cutting uses a high-energy-density laser beam to melt and cut special steel. It has the advantages of high cutting accuracy, fast speed, and small heat-affected zone, and is suitable for special steels of various thicknesses. In conventional laser cutting, the angle of the laser cutter cannot be adjusted, and the cutting angle cannot be adjusted according to the material and thickness of the special steel, which is likely to cause rough and irregular cutting edges. The fixed cutting angle cannot optimize the heat conduction path, making it difficult to control the size and distribution of the heat-affected zone, and there is a lot of room for improvement. Summary of the invention

[0004] The object of the present invention is to provide a pre-cutting device for special steel processing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pre-cutting device for special steel processing, comprising an assembly side frame, a side mounting frame is fixedly installed on the top of the assembly side frame, a transverse sliding rail is transversely installed between the side mounting frames, a cutting instrument assembly is slidably connected to the transverse sliding rail, a first transverse assembly plate is fixedly installed on the top of the cutting instrument assembly, a driving push rod is fixedly installed on the top of the first transverse assembly plate, a second transverse assembly plate is fixedly installed on the bottom end of the piston rod of the driving push rod, a lifting installation shell is fixedly installed on the second transverse assembly plate, the lifting installation shell is located outside the cutting instrument assembly, and guide holders are fixedly installed on both sides of the cutting instrument assembly A guide slide is fixedly installed at a position corresponding to the guide card seat on the inner side of the lifting mounting shell, a fixed mounting seat is arranged at the bottom of the cutting instrument assembly, a fixing piece is fixedly installed at the bottom of the fixed mounting seat, a rotating part is arranged at the bottom of the fixing piece, the fixed mounting seat is rotatably connected with the rotating piece through the rotating part, a laser cutter is arranged in the structure composed of the fixed piece, the rotating part and the rotating piece, a fixed shaft seat is arranged on the side of the rotating piece close to the lifting mounting shell, a connecting shaft is rotatably connected in the fixed shaft seat, a swing plate is fixedly installed on the outer surface of the connecting shaft, a rotating shaft is fixedly installed on the end of the swing plate away from the connecting shaft, and the rotating shaft is rotatably connected to the lifting mounting shell.

[0006] Preferably, an adjustable limit plate is provided on the top of the guide slide bar, and a locking bolt is provided on the adjustable limit plate, and the adjustable limit plate is installed on the top of the guide slide bar through the locking bolt.

[0007] Preferably, the guide holder and the guide slide bar are slidably connected, and the two are clearance-fitted.

[0008] Preferably, a support portion is provided on a side of the rotating shaft away from the swing plate, and the swing plate, the rotating shaft and the support portion are an integrally formed structure.

[0009] Preferably, an assembly shaft seat is fixedly mounted on the lifting installation shell, a slag blocking plate is rotatably connected to the assembly shaft seat, and the supporting part is supported at a corresponding position of the slag blocking plate close to a side of the lifting installation shell.

[0010] Preferably, the fixing member, the rotating part and the rotating member are an integrally formed structure.

[0011] Preferably, an assembly cross plate is provided between the assembly side frames, a special-shaped swing plate is provided at the bottom of the assembly cross plate, and a plurality of transmission rods are provided between the assembly side frames, the transmission rod is located between two adjacent special-shaped swing plates, a connecting plate is provided on the top of the special-shaped swing plate, the assembly cross plate is movably engaged with the connecting plate, the assembly cross plate is movably mounted on the special-shaped swing plate by assembly bolts, connecting bolts are threadedly installed at both ends of the connecting plate, and the connecting bolts pass through the special-shaped swing plate and are threadedly installed on the transmission rod.

[0012] Preferably, a groove corresponding to the shape of the connecting plate is formed at the bottom of the assembly transverse plate.

[0013] Preferably, a first transmission belt is provided at one end of the transmission rod for transmission connection, and a second transmission belt is also provided for transmission connection for the movement of the transmission rod, and a vertical support rod is provided in the assembly side frame, and a support wheel is rotatably connected to the vertical support rod, and the support wheel is supported at corresponding positions at the bottom of the first transmission belt and the second transmission belt.

[0014] Preferably, guide inclined plates are obliquely installed on both ends of the inner wall of the assembly side frame.

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

[0016] 1. The piston rod of the driving push rod drives the lifting and lowering of the lifting installation shell. After the bottom end of the rotating part is subjected to tension, the rotating part rotates around the fixed part through the existence of the rotating part. The laser cutter in the rotating part works at different angles. The assembly horizontal plate and the special-shaped swing plate composition structure have the same inclination angle as the laser cutter, and the two are parallel to ensure that the flame emitted by the laser cutter during cutting is located between the assembly horizontal plate and the special-shaped swing plate composition structure, preventing the laser cutter from emitting flames that affect the assembly horizontal plate and the special-shaped swing plate. Accurately adjusting the cutting angle can make the cutting edge of the special steel smoother. This is not only more beautiful in appearance, but also in the subsequent processing and use process, it can reduce the stress concentration caused by irregular edges, improve the overall strength and stability of special steel parts, and adjust the cutting angle to optimize the heat conduction path during the cutting process, thereby reducing the range of the heat-affected zone. The appropriate cutting angle can make the contact between the cutter and the special steel more reasonable, thereby reducing the resistance during the cutting process.

[0017] 2. According to different installation needs, the special-shaped swing plate is connected to different transmission rods. The rotation of the transmission rod drives the angle of the assembly cross plate to shift. The structure composed of multiple assembly cross plates and special-shaped swing plates supports the special steel. The gap between the transmission rods can prevent the cutting flame from contacting the assembly cross plate and the special-shaped swing plate, thereby realizing the protection of the assembly cross plate and the special-shaped swing plate. At the same time, when the assembly cross plate and the special-shaped swing plate constitute the structure and reciprocate, a thrust in the rotation direction is applied to the special steel to drive the special steel to be transported. When the cutting gas flame contacts the supporting structure, the supporting structure will absorb a large amount of heat, thereby causing the local temperature to rise. By suspending the cutting position, the support structure can be effectively prevented from conducting heat to the workpiece, thereby ensuring the accuracy of the cutting size. The cutting gas flame usually has a very high temperature and energy, and direct contact with the supporting structure will cause serious damage to it. High temperature may cause the supporting structure to deform, soften or even melt, thereby reducing its supporting strength and service life. By suspending the cutting position, the direct impact of the cutting gas flame on the supporting structure can be avoided, thereby extending the service life of the supporting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the present invention.

[0019] Figure 2 It is a side view structural schematic diagram of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure at the corresponding position of the transverse sliding rail of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure at the corresponding position of the lifting installation shell of the present invention.

[0022] Figure 5It is a structural schematic diagram of the corresponding position of the second transverse assembly plate of the present invention.

[0023] Figure 6 It is a structural schematic diagram of the corresponding position of the slag retaining plate of the present invention.

[0024] Figure 7 It is a structural schematic diagram of the corresponding position of the rotating part of the present invention.

[0025] Figure 8 It is a schematic diagram of the structure at the corresponding position of the rotating shaft of the present invention.

[0026] Fig. 9 It is a structural schematic diagram of the corresponding position of the horizontal plate of the present invention.

[0027] Fig.10 It is a structural schematic diagram of the corresponding position of the vertical support rod of the present invention.

[0028] Fig.11 It is a schematic diagram of the structure at the corresponding position of the first transmission belt of the present invention.

[0029] Fig.12 It is a schematic diagram of the structure at the corresponding position of the special-shaped swing plate of the present invention.

[0030] Fig.13 It is a structural schematic diagram of the corresponding position of the assembly bolt of the present invention.

[0031] Fig.14 It is a structural schematic diagram of the corresponding position of the transmission rod of the present invention.

[0032] In the figure: 1. Assembly side frame; 2. Side mounting frame; 3. Horizontal sliding rail; 4. Cutting instrument assembly; 5. First horizontal assembly plate; 6. Driving push rod; 7. Second horizontal assembly plate; 8. Lifting mounting shell; 9. Guide card seat; 10. Guide slide; 11. Fixed mounting seat; 12. Fixing member; 13. Rotating part; 14. Rotating member; 15. Laser cutter; 16. Fixed shaft seat; 17. Connecting shaft; 18. Swinging plate; 19. Rotating shaft; 20. Adjustable limit plate; 21. Locking bolt; 22. Support part; 23. Assembly shaft seat; 24. Slag stop plate; 25. Assembly cross plate; 26. Special-shaped swinging plate; 27. Transmission rod; 28. Connecting plate; 29. ​​Assembly bolt; 30. Connecting bolt; 31. First transmission belt; 32. Second transmission belt; 33. Vertical support rod; 34. Support wheel; 35. Guide inclined plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all 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.

[0034] See also Figures 1 to 14The present invention provides a technical solution: a pre-cutting device for special steel processing, comprising an assembly side frame 1, a side mounting frame 2 is fixedly installed on the top of the assembly side frame 1, the side mounting frame 2 is fixedly installed at the center position of the top of the assembly side frame 1, the side mounting frame 2 is reasonably arranged, and can be more convenient for the installation of instruments on the assembly side frame 1, a transverse sliding rail 3 is transversely installed between the side mounting frames 2, the side mounting frame 2 and the transverse sliding rail 3 form a gantry for the installation of a cutting instrument assembly 4 on the transverse sliding rail 3, the sliding of the cutting instrument assembly 4 on the transverse sliding rail 3 realizes the cutting of special steel at different positions on the assembly side frame 1, the cutting instrument assembly 4 moves to different positions on the transverse sliding rail 3, and cuts different positions of the special steel to ensure the special steel The cutting device assembly 4 is slidably connected to the transverse sliding rail 3, and the transverse sliding rail 3 is provided with a slide groove at a corresponding position, and the cutting device assembly 4 is provided with a driving power mechanism to ensure the sliding of the cutting device assembly 4 on the transverse sliding rail 3 to ensure the cutting of special steel. The top of the cutting device assembly 4 is fixedly installed with a first transverse assembly plate 5, and the first transverse assembly plate 5 is arranged at the center position of the top of the cutting device assembly 4 to assist the installation of the driving push rod 6. The first transverse assembly plate 5 is reasonably arranged to ensure the installation of the driving push rod 6. The top of the first transverse assembly plate 5 is fixedly installed with a driving push rod 6, and the bottom end of the piston rod of the driving push rod 6 is fixedly installed with a second transverse assembly plate 7, and the second transverse assembly plate 7 is fixedly installed with a lifting installation shell 8. The two transverse assembly plates 7 and the lifting and lowering mounting shell 8 are an integrally formed structure. The piston rod of the first transverse assembly plate 5 drives the second transverse assembly plate 7 and the cutting instrument assembly 4 to rise and fall, thereby driving the rotating shaft 19 to rise and fall. The lifting and lowering mounting shell 8 is movably sleeved on the cutting instrument assembly 4 to realize the vertical lifting and lowering of the lifting and lowering mounting shell 8 on the cutting instrument assembly 4, and adapt to the adjustment of the lifting and lowering mounting shell 8 at different heights on the cutting instrument assembly 4. The lifting and lowering mounting shell 8 is a U-shaped structure to assist the lifting and lowering of the lifting and lowering mounting shell 8. The lifting and lowering mounting shell 8 is located outside the cutting instrument assembly 4. Guide holders 9 are fixedly installed on both sides of the cutting instrument assembly 4. Guide slide bars 10 are fixedly installed at the positions corresponding to the guide holders 9 on the inner side of the lifting and lowering mounting shell 8. The guide holders 9 on both sides of the cutting instrument assembly 4 are used The guide seat 9 is provided with a groove corresponding to the shape of the guide slide 10. The guide seat 9 and the guide slide 10 are slidably connected, and the two are clearance-matched. The size of the guide slide 10 is smaller than the size of the groove provided on the guide seat 9, reducing the resistance of the guide slide 10 sliding in the guide seat 9. At the same time, the guide seat 9 can also limit the guide slide 10, assist the lifting of the guide slide 10, thereby driving the lifting of the lifting installation shell 8. A fixed mounting seat 11 is provided at the bottom of the cutting instrument assembly 4, and a fixing member 12 is fixedly installed at the bottom of the fixed mounting seat 11. A rotating part 13 is provided at the bottom of the fixing member 12. The fixed mounting seat 11 is rotatably connected to a rotating member 14 through the rotating part 13. A laser cutter 15 is provided between the fixing members 12.A laser cutter 15 is also provided between the rotating members 14, and the laser cutter 15 passes through the rotating part 13 and is installed in the rotating part 13. The laser cutter 15 is provided in the structure composed of the fixed member 12, the rotating part 13 and the rotating member 14. The fixed member 12 is fixed to the bottom of the fixed mounting seat 11. When the rotating member 14 and the rotating part 13 rotate around the fixed member 12, the position of the bottom end of the laser cutter 15 is changed, so that the bottom end of the laser cutter 15 works at different angles, ensuring that the bottom end of the laser cutter 15 is aligned with the fixed member 12 at different angles. Special steel is cut, and a part for installing a laser cutter 15 is opened in the fixed part 12 and the rotating part 14 to ensure the normal installation of the laser cutter 15. At the same time, the laser cutter 15 is composed of a laser emitting part and an energy supply part, wherein the energy supply part of the laser cutter 15 is located in the fixed part 12, the rotating part 13 and part of the rotating part 14 to ensure the normal rotation of the energy supply part of the laser cutter 15. Laser cutting mainly relies on a laser generator to generate a high-energy-density laser beam, which is focused by an optical system and irradiated to the cut surface. The surface of the material, after absorbing the laser energy, the temperature of the material rises rapidly to reach the melting or vaporization point, and is thus cut into the desired shape. The laser cutting speed is fast, which can greatly improve the production efficiency. Compared with the traditional cutting method, laser cutting can complete the same amount of work in a shorter time. A fixed shaft seat 16 is provided on the side of the rotating member 14 close to the lifting installation shell 8. The fixed shaft seat 16 is fixedly installed on the rotating member 14 for installing the connecting shaft 17. The connecting shaft 17 is installed in the fixed shaft seat 16. The connecting shaft 17 and the fixed shaft seat 16 form a rotating connection structure to assist the rotation of the connecting shaft 17 and the swing plate 18. The connecting shaft 17 is rotatably connected in the fixed shaft seat 16. The swing plate 18 is fixedly installed on the outer surface of the connecting shaft 17. The end of the swing plate 18 away from the connecting shaft 17 is fixedly installed with a rotating shaft 19, and the rotating shaft 19 is rotatably connected to the lifting installation shell 8. Through the rotation of the rotating shaft 19 in the lifting installation shell 8, the rotating shaft 19 and the lifting installation shell 8 form a rotating connection structure. Accurately adjusting the cutting angle can make the cutting edge of the special steel smoother. This is not only more beautiful in appearance, but also can reduce stress concentration caused by irregular edges during subsequent processing and use, improve the overall strength and stability of special steel parts, and adjust the cutting angle to optimize the heat conduction path during the cutting process, thereby reducing the range of the heat-affected zone. The appropriate cutting angle can make the contact between the cutter and the special steel more reasonable, thereby reducing the resistance during the cutting process.

[0035] An adjustable limit plate 20 is provided at the top of the guide slide 10, and a locking bolt 21 is provided on the adjustable limit plate 20. The adjustable limit plate 20 is installed on the top of the guide slide 10 through the locking bolt 21. The adjustable limit plate 20 is fixed after installation by twisting the locking bolt 21 on the guide slide 10, and the adjustable limit plate 20 slides on the locking bolt 21 to change the extended position of the adjustable limit plate 20, thereby limiting the lifting and lowering of the guide seat 9 and assisting in guiding the lifting and lowering of the lifting and lowering installation shell 8.

[0036] A supporting portion 22 is provided on the side of the rotating shaft 19 facing away from the swing plate 18, and the swing plate 18, the rotating shaft 19 and the supporting portion 22 are an integrally formed structure. The swing plate 18, the rotating shaft 19 and the supporting portion 22 rotate together on the lifting mounting shell 8. When the lifting mounting shell 8 moves upward, it drives the rotating shaft 19 to move upward. The rotating shaft 19 pulls the end of the swing plate 18 close to the rotating shaft 19 to move upward, and the end of the swing plate 18 away from the rotating shaft 19 applies an upward pulling force to the connecting shaft 17. The upward movement of the connecting shaft 17 drives the bottom end of the rotating member 14 to move upward, and the upward movement of the bottom end of the rotating member 14 drives the rotating portion 13 to rotate. At the same time, the laser cutter 15 also moves upward with the bottom end of the rotating member 14, thereby driving the part of the laser cutter 15 located in the rotating portion 13 to rotate.

[0037] An assembly shaft seat 23 is fixedly installed on the lifting and mounting shell 8, and a slag stop plate 24 is rotatably connected to the assembly shaft seat 23. The support part 22 is supported at a corresponding position of the slag stop plate 24 close to the lifting and mounting shell 8. When the lifting and mounting shell 8 drives the rotating shaft 19 to move upward, the top of the support part 22 will also move upward, thereby supporting the inner wall of the slag stop plate 24, thereby changing the angle of the slag stop plate 24. The slag stop plate 24 rotates around the assembly shaft seat 23, and at the same time, the slag stop plate 24 blocks the flame generated by the laser cutter 15.

[0038] An assembly cross plate 25 is arranged between the assembly side frames 1, and a special-shaped swing plate 26 is arranged at the bottom of the assembly cross plate 25. Grooves corresponding to the shape of the transmission rod 27 are arranged on both sides of the special-shaped swing plate 26 to ensure that the special-shaped swing plate 26 can be stably engaged with the transmission rod 27. A plurality of transmission rods 27 are also arranged between the assembly side frames 1. The number of transmission rods 27 is greater than the number of special-shaped swing plates 26 to ensure that all special-shaped swing plates 26 are located between the transmission rods 27. The transmission rod 27 is located between two adjacent special-shaped swing plates 26. A connecting plate 28 is arranged on the top of the special-shaped swing plate 26. The assembly cross plate 25 is movably engaged with On the connecting plate 28, the assembly cross plate 25 is movably mounted on the special-shaped swing plate 26 by means of assembly bolts 29. Both ends of the connecting plate 28 are threadedly mounted with connecting bolts 30, and the connecting bolts 30 pass through the special-shaped swing plate 26 and are threadedly mounted on the transmission rod 27. According to the lifting angle, the connecting bolts 30 are selected to be installed on the corresponding end of the connecting plate 28. The connecting bolts 30 are installed on the connecting plate 28, the special-shaped swing plate 26 and the transmission rod 27 to realize the connection between the special-shaped swing plate 26, the transmission rod 27 and the assembly cross plate 25, so that the synchronous angle adjustment of multiple transmission rods 27 and the special-shaped swing plates 26 can be realized.

[0039] A groove corresponding to the shape of the connecting plate 28 is provided at the bottom of the assembling transverse plate 25 , and the connection and cooperation between the special-shaped swing plate 26 and the assembling transverse plate 25 is achieved through the cooperation between the connecting plate 28 and the assembling transverse plate 25 .

[0040] One end of the transmission rod 27 is provided with a first transmission belt 31 for transmission connection, and the movement of the transmission rod 27 is also provided with a second transmission belt 32 for transmission connection. A vertical support rod 33 is provided in the assembly side frame 1, and a support wheel 34 is rotatably connected to the vertical support rod 33. The support wheel 34 is supported at the corresponding position of the bottom of the first transmission belt 31 and the second transmission belt 32. Multiple transmission rods 27 are connected through the first transmission belt 31. The rotation of the transmission rod 27 on one side drives all the transmission rods 27 to rotate, and the rotation of the transmission rod 27 on the other side drives the second transmission belt 32 to rotate, thereby driving all the transmission rods 27 to rotate in the other direction. When one side of the special-shaped swing plate 26 is installed on the transmission rod 27, the transmission rod 27 and the first transmission belt 31 cooperate to realize the rotation of all the transmission rods 27. When the other side of the special-shaped swing plate 26 is installed on another transmission rod 27, the transmission rod 27 and the second transmission belt 32 cooperate to realize the rotation of all the transmission rods 27. The height of the structure composed of the vertical support rod 33 and the support wheel 34 can be adjusted. The support wheel 34 applies pressure to the first transmission belt 31 and the second transmission belt 32 to ensure that the wrap angle between the first transmission belt 31 and the second transmission belt 32 and the transmission rod 27 is less than 120° to meet the rotation requirement of the transmission rod 27.

[0041] Both ends of the inner wall of the assembly side frame 1 are obliquely installed with guide inclined plates 35 to assist the loading of objects.

[0042] Working principle:

[0043] The first step: according to different installation requirements, the special-shaped swing plate 26 and the transmission rod 27 are connected, and the connecting bolts 30 are threadedly installed on the connecting plate 28, the special-shaped swing plate 26 and the transmission rod 27 in sequence to realize the fixed connection between one side of the special-shaped swing plate 26 and the transmission rod 27. When the transmission rod 27 rotates, the special-shaped swing plate 26 fixed on the transmission rod 27 is driven to rotate, and the bottom of the assembly cross plate 25 and the connecting plate 28 are engaged together to realize the preliminary installation of the assembly cross plate 25, and further fixed by the assembly bolts 29 to realize the installation of the assembly cross plate 25. The output mechanism in the assembly side frame 1 drives the transmission rod 27 to rotate, and the rotation of the transmission rod 27 drives the angle of the assembly cross plate 25 to deviate. When the transmission rod 27 rotates, the power is transmitted to the next transmission rod 27 through the first transmission belt 31. Thereby, the synchronous rotation of multiple transmission rods 27 is realized to realize the synchronous rotation of the structure composed of the assembly cross plate 25 and the special-shaped swing plate 26. The structure composed of multiple assembly cross plates 25 and the special-shaped swing plate 26 supports the special steel. At the same time, the gap between the transmission rods 27 can prevent the cutting flame from contacting the assembly cross plate 25 and the special-shaped swing plate 26, thereby realizing the protection of the assembly cross plate 25 and the special-shaped swing plate 26. At the same time, when the structure composed of the assembly cross plate 25 and the special-shaped swing plate 26 reciprocates, a thrust in the rotation direction is applied to the special steel, driving the special steel to move above the structure composed of the assembly cross plate 25 and the special-shaped swing plate 26, and driving the transmission rod 27 at the other end of the assembly side frame 1 to rotate, so that the structure composed of the bottom assembly cross plate 25 and the special-shaped swing plate 26 rotates in the opposite direction, driving the special steel to move in the opposite direction.

[0044] Step 2: The second transverse assembly plate 7 and the lifting and lowering mounting shell 8 are driven to rise and fall by the piston rod of the driving push rod 6. When the second transverse assembly plate 7 and the lifting and lowering mounting shell 8 are raised and lowered, the lifting and lowering mounting shell 8 is lifted and lowered outside the cutting instrument assembly 4. At the same time, the guide slide bar 10 in the lifting and lowering mounting shell 8 will slide in the guide card seat 9 outside the cutting instrument assembly 4. The bottom of the lifting and lowering mounting shell 8 drives the rotating shaft 19 to move up and down. When the rotating shaft 19 moves up and down, it exerts a pull on the swing plate 18. At the same time, the rotating shaft 19 will also rotate in the lifting and lowering mounting shell 8. When the end of the swing plate 18 close to the rotating shaft 19 moves upward, the end of the swing plate 18 away from the rotating shaft 19 will exert a pulling force on the bottom end of the rotating member 14. At the same time, the connecting shaft 17 will also be fixed on the fixed shaft seat 16. When the rotating member 14 rotates internally, after the bottom end of the rotating member 14 is subjected to tension, the rotating member 14 rotates around the fixed member 12 due to the existence of the rotating part 13. When the rotating member 14 rotates, the bottom end of the laser cutter 15 is driven to deviate. At the same time, the part of the laser cutter 15 located in the rotating part 13 will bend to adapt to the rotation of the rotating member 14. The bottom end of the laser cutter 15 works at different angles. The structure composed of the assembly horizontal plate 25 and the special-shaped swing plate 26 has the same inclination angle as the laser cutter 15, and the two are parallel to ensure that the flame emitted by the laser cutter 15 during cutting is located between the structure composed of the assembly horizontal plate 25 and the special-shaped swing plate 26, so as to prevent the flame emitted by the laser cutter 15 from affecting the assembly horizontal plate 25 and the special-shaped swing plate 26.

[0045] Step 3: When the rotating shaft 19 rotates, it will drive the supporting part 22 to rotate. When the supporting part 22 rotates, it will support the slag blocking plate 24. After the slag blocking plate 24 is supported, the slag blocking plate 24 rotates around the assembly shaft seat 23. At the same time, the inclination angle of the slag blocking plate 24 changes, so that the inclination angle of the slag blocking plate 24 will be consistent with the inclination angle of the rotating part 14, ensuring that the slag blocking plate 24 blocks the debris generated by the operation of the laser cutter 15.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pre-cutting device for processing special steel, comprising an assembly side frame (1), a side mounting frame (2) fixedly mounted on the top of the assembly side frame (1), a transverse sliding rail (3) transversely mounted between the side mounting frames (2), a cutting instrument assembly (4) slidably connected to the transverse sliding rail (3), characterized in that: A first transverse assembly plate (5) is fixedly installed on the top of the cutting instrument assembly (4), a driving push rod (6) is fixedly installed on the top of the first transverse assembly plate (5), a second transverse assembly plate (7) is fixedly installed on the bottom end of the piston rod of the driving push rod (6), a lifting installation shell (8) is fixedly installed on the second transverse assembly plate (7), the lifting installation shell (8) is located outside the cutting instrument assembly (4), guide seats (9) are fixedly installed on both sides of the cutting instrument assembly (4), a guide slide bar (10) is fixedly installed at the position of the guide seat (9) on the inner side of the lifting installation shell (8), and a fixed mounting seat (11) is arranged at the bottom of the cutting instrument assembly (4), and the bottom of the fixed mounting seat (11) is fixedly installed. A fixing member (12) is provided, a rotating part (13) is provided at the bottom of the fixing member (12), the fixed mounting seat (11) is rotatably connected to a rotating member (14) via the rotating part (13), a laser cutter (15) is provided in the structure composed of the fixing member (12), the rotating part (13) and the rotating member (14), a fixed shaft seat (16) is provided on the side of the rotating member (14) close to the lifting mounting shell (8), a connecting shaft (17) is rotatably connected in the fixed shaft seat (16), a swing plate (18) is fixedly installed on the outer surface of the connecting shaft (17), a rotating shaft (19) is fixedly installed on the end of the swing plate (18) away from the connecting shaft (17), and the rotating shaft (19) is rotatably connected to the lifting mounting shell (8).

2. A pre-cutting device for special steel processing according to claim 1, characterized in that: An adjustable limit plate (20) is arranged on the top of the guide slide bar (10), and a locking bolt (21) is arranged on the adjustable limit plate (20). The adjustable limit plate (20) is installed on the top of the guide slide bar (10) through the locking bolt (21).

3. A pre-cutting device for special steel processing according to claim 2, characterized in that: The guide clamping seat (9) and the guide sliding strip (10) are slidably connected, and the two are clearance-matched.

4. A pre-cutting device for special steel processing according to claim 3, characterized in that: A support portion (22) is provided on the side of the rotating shaft (19) facing away from the swing plate (18), and the swing plate (18), the rotating shaft (19) and the support portion (22) are an integrally formed structure.

5. A pre-cutting device for special steel processing according to claim 4, characterized in that: An assembly shaft seat (23) is fixedly mounted on the lifting installation shell (8), a slag blocking plate (24) is rotatably connected to the assembly shaft seat (23), and the support portion (22) is supported at a corresponding position of the slag blocking plate (24) close to one side of the lifting installation shell (8).

6. A pre-cutting device for special steel processing according to claim 5, characterized in that: The fixing member (12), the rotating part (13) and the rotating member (14) are an integrally formed structure.

7. A pre-cutting device for special steel processing according to claim 6, characterized in that: An assembly transverse plate (25) is arranged between the assembly side frames (1), a special-shaped swing plate (26) is arranged at the bottom of the assembly transverse plate (25), and a plurality of transmission rods (27) are also arranged between the assembly side frames (1), the transmission rod (27) is located between two adjacent special-shaped swing plates (26), a connecting plate (28) is arranged at the top of the special-shaped swing plate (26), the assembly transverse plate (25) is movably engaged with the connecting plate (28), the assembly transverse plate (25) is movably mounted on the special-shaped swing plate (26) by means of assembly bolts (29), both ends of the connecting plate (28) are threadedly mounted with connecting bolts (30), and the connecting bolts (30) pass through the special-shaped swing plate (26) and are threadedly mounted on the transmission rod (27).

8. A pre-cutting device for special steel processing according to claim 7, characterized in that: The bottom of the assembly transverse plate (25) is provided with a groove corresponding to the shape of the connecting plate (28).

9. A pre-cutting device for special steel processing according to claim 8, characterized in that: A first transmission belt (31) is arranged at one end of the transmission rod (27) for transmission connection, and a second transmission belt (32) is arranged for transmission connection when the transmission rod (27) moves. A vertical support rod (33) is arranged inside the assembly side frame (1), and a support wheel (34) is rotatably connected to the vertical support rod (33). The support wheel (34) is supported at corresponding positions at the bottom of the first transmission belt (31) and the second transmission belt (32).

10. A pre-cutting device for special steel processing according to claim 9, characterized in that: Both ends of the inner wall of the assembly side frame (1) are obliquely mounted with guide inclined plates (35).

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