Cutting device for aluminum alloy door and window machining

Abstract

The invention discloses a cutting device for aluminum alloy door and window machining, and belongs to the technical field of cutting equipment. Comprising a supporting platform, a first rotating table, a second rotating table rotationally connected with the supporting platform and a transmission assembly. A first electric sliding table and a supporting plate in sliding connection with the supporting platform are fixedly installed on the supporting platform, the supporting plate is installed at the output end of the first electric sliding table, and the first rotating table is rotationally connected with the supporting plate; a driving assembly is mounted on the supporting platform; the first rotating table and the second rotating table are each provided with a movable cutting machine. The driving assembly drives the cutting machines on the first rotating table and the second rotating table to synchronously and reversely rotate through the transmission assembly, so that the cutting direction is controlled, the two cutting machines synchronously cut the two ends of a raw material, the cutting difficulty is effectively reduced, and the cutting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cutting equipment, and more specifically to a cutting device for processing aluminum alloy doors and windows. Background Art

[0002] The ends of adjacent aluminum alloy door and window profiles are usually butt-jointed at 90-degree angles, 45-degree angles, and 135-degree angles, and the aluminum alloy door and window profiles are often cut and formed by corresponding cutting equipment. When cutting aluminum alloy door and window profiles, the existing cutting equipment mostly uses single-line cutting. After processing one end of the profile, the placement of the profile is adjusted again, and the other end of the profile is cut to achieve the forming of a group of aluminum alloy door and window profiles. Cutting in this way is time-consuming and labor-intensive, and the efficiency is low. In view of this, we propose a cutting device for aluminum alloy door and window processing. Summary of the invention

[0003] The purpose of the present invention is to provide a cutting device for processing aluminum alloy doors and windows, so as to solve the technical problem of low cutting efficiency of aluminum alloy door and window profiles in the prior art.

[0004] The embodiment of the present invention provides a cutting device for processing aluminum alloy doors and windows, comprising a supporting platform, a first rotating platform, a second rotating platform rotatably connected to the supporting platform, and a transmission assembly; The support platform is fixedly mounted with a first electric slide and a support plate slidably connected to the support platform, the support plate is mounted at the output end of the first electric slide, and the first rotating platform is rotatably connected to the support plate; The transmission assembly includes a first transmission shaft rotatably arranged on the support platform and two groups of first bevel gears, the two groups of first bevel gears are respectively installed at the rotation connection between the first rotating platform and the second rotating platform, one end of the first transmission shaft is fixedly installed with the second bevel gear, and the other end is slidably connected with the second transmission shaft, the second bevel gear is meshed with the corresponding first bevel gear for transmission, the second transmission shaft is rotatably connected with the support plate, and the end of the second transmission shaft is fixedly installed with a third bevel gear meshed with the corresponding first bevel gear for transmission; A driving assembly is installed on the support platform, and the driving assembly is used to drive the first transmission shaft to rotate; A movable cutting machine is installed on both the first rotating table and the second rotating table; The driving assembly drives the cutting machines on the first rotating table and the second rotating table to rotate synchronously and in opposite directions through the transmission assembly, thereby controlling the cutting direction and making the two groups of cutting machines cut the two ends of the raw material synchronously.

[0005] As a further description of the above technical solution, the support platform includes a support frame, an operating table is fixedly installed on the support frame, an adjustment table with the same height as the operating table is slidably connected to the support frame, a first limit plate and a second limit plate are fixedly installed on the operating table, a knife groove is obliquely opened on the second limit plate, and a number of side limit plates are fixedly installed on the operating table and the adjustment table.

[0006] As a further description of the above technical solution, it also includes a positioning component, which includes a screw rod rotatably mounted on a support frame, a thread on the screw rod is matched with a connecting frame slidably connected to the support frame, a fourth bevel gear is fixedly mounted on the screw rod, two sets of fourth bevel gears are meshed with the first bevel gear for transmission, a first positioning plate is fixedly mounted on one connecting frame, and a second positioning plate is fixedly mounted on the other connecting frame. The first positioning plate, the second positioning plate, the first limit plate and the second limit plate are used for aluminum alloy cutting positioning and are arranged parallel to each other, and the first limit plate and the second positioning plate are collinear.

[0007] As a further description of the above technical solution, the first rotating table includes a rotating frame, a support shaft is fixedly installed on the bottom of the rotating frame, a rotating plate is fixedly installed on the top of the rotating frame, the axis of the support shaft and the axis of the rotating plate are collinear, a knife hole is opened on the rotating plate, the knife hole intersects with the axis of the rotating plate, the rotating plate on the first rotating table is rotatably connected to the adjusting table, and the support shaft of the first rotating table is rotatably connected to the support plate.

[0008] As a further description of the above technical solution, the second rotating platform has the same structure as the first rotating platform, the rotating plate on the second rotating platform is rotatably connected to the operating platform, and the second rotating platform is rotatably connected to the supporting frame through a supporting shaft; The two groups of the first bevel gears are fixedly mounted on the first rotating platform and the second rotating platform support shafts respectively.

[0009] As a further description of the above technical solution, the support plate and the adjusting platform have the same sliding direction, and a line connecting the centers of the rotating plates on the second rotating platform and the first rotating platform is parallel to the sliding direction of the adjusting platform.

[0010] As a further description of the above technical solution, the second positioning plate and the knife hole have a set distance.

[0011] As a further description of the above technical solution, the cutting machine includes a second electric slide fixedly mounted on a rotating frame, an adjusting frame slidably connected to the rotating frame is fixedly mounted on the output end of the second electric slide, the sliding direction of the adjusting frame is parallel to the opening direction of the knife hole, a first motor and a baffle are fixedly mounted on the adjusting frame, a connecting shaft is rotatably connected to the adjusting frame, the output shaft of the first motor and the connecting shaft are driven by a belt, a cutting blade is fixedly mounted on the connecting shaft, the cutting blade passes through the knife hole, and a number of side limit plates are distributed at both ends of the cutting blade.

[0012] As a further description of the above technical solution, the driving assembly includes a second motor fixedly mounted on a support frame and a first gear fixedly mounted on a first transmission shaft, the output shaft of the second motor is fixedly connected to a second gear, and the second gear meshes with the first gear for transmission.

[0013] As a further description of the above technical solution, it also includes several clamping components, The clamping assembly includes a first cylinder, which is fixedly installed on an operating table or an adjusting table. The pushing direction of the first cylinder is perpendicular to the sliding direction of the adjusting table. The output shaft of the first cylinder is fixedly installed with a top plate, and each top plate corresponds to at least one group of side limit plates. The top plate and the side limit plates work together to clamp and fix the two sides of the aluminum alloy. A second cylinder is fixedly installed on the top plate, and the output shaft of the second cylinder is fixedly installed with a top block, which is used to clamp and fix the top of the aluminum alloy.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The present invention controls two sets of cutting machines to rotate synchronously and in opposite directions through a transmission assembly, thereby realizing the cutting angle adjustment of the two sets of cutting blades to 45 degrees, 90 degrees and 135 degrees, which can adapt to the cutting of different types of ends of aluminum alloy doors and windows, and the two sets of cutting machines can simultaneously cut both ends of the aluminum alloy profiles, thereby improving the cutting and forming efficiency, and eliminating the need for secondary adjustment of the cutting position of the aluminum alloy profiles.

[0015] 2. The present invention can place two groups of aluminum alloy profiles to be cut, and coordinate the cutting directions of the cutting machine with different movements, so as to achieve alternating cutting, effectively reduce the time that the material changing process affects the operation of the cutting machine, and further improve the cutting efficiency.

[0016] 3. The present invention achieves adjustment of the distance between the first rotating table and the second rotating table by driving the first rotating table to move on the first electric slide, thereby controlling the cutting length of the aluminum alloy doors and windows, and can achieve forming cutting of two groups of aluminum alloy doors and windows of equal or unequal lengths, with strong flexibility.

[0017] 4. The present invention controls the movement of the first positioning plate and the second positioning plate while the transmission assembly controls the rotation and adjustment of the two cutting machines, thereby achieving switching of the positioning position before aluminum alloy cutting and reducing the difficulty of adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention; Figure 2 A cross-sectional view of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention; Figure 3A schematic diagram of the connection structure of the support plate of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the connection structure of the transmission assembly of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention; Figure 5 A schematic diagram of the connection structure of a cutting machine of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention; Figure 6 A schematic diagram of the connection structure of the positioning components of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention; Figure 7 A schematic diagram of the cutting adjustment principle of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention; Figure 8 The present invention is a schematic diagram of the structure of a clamping assembly of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention.

[0019] Explanation of the numbers in the figure: 1. Support platform; 2. First rotating table; 3. Second rotating table; 4. Cutting machine; 5. First electric slide; 6. Support plate; 7. Transmission assembly; 8. Drive assembly; 9. Positioning assembly; 10. Clamping assembly; 11. Support frame; 12. Operating table; 13. Adjustment table; 14. First limit plate; 15. Second limit plate; 16. Knife groove; 17. Side limit plate; 18. Guide rod; 19. Main control machine; 21. Rotating frame; 22. Support shaft; 23. Rotating plate; 24. Knife hole; 25. Collection box; 41. Second electric Movable slide; 42, adjustment frame; 43, first motor; 44, connecting shaft; 45, cutting blade; 46, baffle; 47, discharge port; 71, first transmission shaft; 72, first bevel gear; 73, second bevel gear; 74, second transmission shaft; 75, third bevel gear; 81, second motor; 82, first gear; 83, second gear; 91, screw rod; 92, connecting frame; 93, fourth bevel gear; 94, first positioning plate; 95, second positioning plate; 101, first cylinder; 102, top plate; 103, second cylinder; 104, top block. DETAILED DESCRIPTION

[0020] 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.

[0021] Reference Figures 1 to 8The present embodiment discloses a cutting device for processing aluminum alloy doors and windows, comprising a supporting platform 1, a first rotating platform 2 and a second rotating platform 3. The supporting platform 1 comprises a supporting frame 11, an operating table 12 is fixedly mounted on the supporting frame 11, an adjusting platform 13 with the same height as the operating table 12 is slidably connected to the supporting frame 11, a first limiting plate 14 and a second limiting plate 15 are fixedly mounted on the operating table 12, a knife groove 16 is obliquely opened on the second limiting plate 15, a plurality of side limiting plates 17 are fixedly mounted on the operating table 12 and the adjusting table 13, and are distributed on both sides to form two groups for limiting the side edges of the aluminum alloy to be processed, a plurality of guide rods 18 are fixedly mounted on both sides of the operating table 12, and a main control machine 19 for operation control is fixedly mounted on the operating table 12.

[0022] Reference Figures 1 to 5 The first rotating table 2 includes a rotating frame 21, a supporting shaft 22 is fixedly installed at the bottom of the rotating frame 21, a rotating plate 23 is fixedly installed at the top of the rotating frame 21, the axis of the supporting shaft 22 and the axis of the rotating plate 23 are colinear, a knife hole 24 is opened on the rotating plate 23, the knife hole 24 intersects with the axis of the rotating plate 23, the rotating plate 23 on the first rotating table 2 is rotatably connected to the adjusting table 13, and a collecting box 25 is fixedly installed on the rotating frame 21 for collecting cutting debris.

[0023] The first electric slide 5 is fixedly mounted on the support frame 11, and the output end of the first electric slide 5 is fixedly connected to the support plate 6, which is slidably connected to the support frame 11 and has the same sliding direction as the adjustment platform 13. The support shaft 22 of the first rotating platform 2 is rotatably connected to the support plate 6, and the second rotating platform 3 has the same structure as the first rotating platform 2. The rotating plate 23 on the second rotating platform 3 is rotatably connected to the operating platform 12, and the support shaft 22 on the second rotating platform 3 is rotatably connected to the support frame 11. The connecting line of the centers of the rotating plates 23 on the second rotating platform 3 and the first rotating platform 2 is parallel to the sliding direction of the adjustment platform 13. The first electric slide 5 drives the first rotating platform 2 to move, thereby adjusting the distance between the first rotating platform 2 and the second rotating platform 3, controlling the cutting length of the aluminum alloy doors and windows, and improving the cutting flexibility.

[0024] Reference Figure 2 , Figure 4 and Figure 5, a cutting machine 4 is installed on both the first rotating table 2 and the second rotating table 3. The cutting machine 4 includes a second electric slide 41 fixedly installed on the rotating frame 21, an adjusting frame 42 slidably connected to the rotating frame 21 is fixedly installed at the output end of the second electric slide 41, and the sliding direction of the adjusting frame 42 is parallel to the opening direction of the knife hole 24. A first motor 43 and a baffle 46 are fixedly installed on the adjusting frame 42, and a connecting shaft 44 is rotatably connected to the adjusting frame 42. The output shaft of the first motor 43 and one end of the connecting shaft 44 are both installed with pulleys, and the two pulleys are driven by a belt, so that the output shaft of the first motor 43 drives the connecting shaft 44 to rotate, and a cutting blade 45 is fixedly installed on the end of the connecting shaft 44 away from the pulley. The cutting blade 45 passes through the knife hole 24, and a plurality of side limit plates 17 are distributed at both ends of the cutting blade 45. A discharge port 47 is opened at the bottom of the baffle 46 for introducing the cutting debris collected by the baffle 46 into the collection box 25. The cutting blade 45 needs to be reset to the initial position when the angle is adjusted. When the cutting blade 45 is in the initial position, the center of the cutting blade 45 is located on the extended line of the axis of the rotating plate 23 .

[0025] Reference Figures 2 to 7 The two groups of support shafts 22 are connected by a transmission assembly 7. The transmission assembly 7 includes a first transmission shaft 71 and two groups of first bevel gears 72 rotatably arranged on the support frame 11. The two groups of first bevel gears 72 are fixedly mounted on the corresponding support shafts 22. A second bevel gear 73 is fixedly mounted on one end of the first transmission shaft 71, and a second transmission shaft 74 is slidably connected on the other end. The second bevel gear 73 meshes with the first bevel gear 72 on the second rotating platform 3 for transmission. The second transmission shaft 74 is rotatably connected to the support plate 6. A third bevel gear 75 is fixedly mounted on the end of the second transmission shaft 74. The third bevel gear 75 meshes with the first bevel gear 72 on the first rotating platform 2 for transmission. The transmission assembly 7 is used to control the cutting blades 45 on the first rotating platform 2 and the second rotating platform 3 to rotate in opposite directions, thereby adjusting the cutting blades 45 between the first cutting angle and the second cutting angle, so that the cutting blades 45 can adapt to the 90-degree, 45-degree and 135-degree cutting of the ends of the aluminum alloy doors and windows. The first cutting angle is a right angle, and the second cutting angle is an oblique angle.

[0026] The cutting device also includes a driving assembly 8 and two sets of positioning assemblies 9. The driving assembly 8 includes a second motor 81 fixedly mounted on the support frame 11 and a first gear 82 fixedly mounted on the first transmission shaft 71. The output shaft of the second motor 81 is fixedly connected to a second gear 83, and the second gear 83 is meshed with the first gear 82 for transmission.

[0027] The positioning assembly 9 includes a screw rod 91 rotatably mounted on the support frame 11, and the screw rod 91 is threadedly matched with a connecting frame 92 slidably connected to the support frame 11, and the connecting frame 92 is slidably connected to the guide rod 18. A fourth bevel gear 93 is fixedly mounted on the end of the screw rod 91, and two sets of fourth bevel gears 93 are meshed and transmitted with the first bevel gear 72. A first positioning plate 94 is fixedly mounted on one connecting frame 92, and a second positioning plate 95 is fixedly mounted on the other connecting frame 92. The first positioning plate 94, the second positioning plate 95, the first limiting plate 14 and the second limiting plate 15 are used for aluminum alloy cutting positioning and are arranged parallel to each other. The first limiting plate 14 and the second positioning plate 95 are colinear, and the second positioning plate 95 has a set spacing with the knife hole 24. When the end of the aluminum alloy is uneven, the positioning end can be partially cut by the cutting blade 45 on the second rotating table 3, thereby ensuring that the length of the aluminum alloy after cutting is qualified.

[0028] Reference Figure 1 and Figure 8 The cutting device also includes a plurality of clamping assemblies 10, the clamping assemblies 10 include a first cylinder 101, the first cylinder 101 is fixedly mounted on an operating table 12 or an adjusting table 13, and the pushing direction of the first cylinder 101 is perpendicular to the sliding direction of the adjusting table 13, the output shaft of the first cylinder 101 is fixedly mounted with a top plate 102, each top plate 102 corresponds to at least one set of side limit plates 17, the top plate 102 and the side limit plates 17 work together to clamp and fix the two sides of the aluminum alloy, a second cylinder 103 perpendicular to the horizontal plane is fixedly mounted on the top plate 102, the output shaft of the second cylinder 103 is fixedly mounted with a top block 104, and the top block 104 is used to clamp and fix the top of the aluminum alloy.

[0029] It should be noted that the displacement of the first electric slide 5 can be detected by a sensor to determine the distance between the two cutting blades 45 or the distance between the cutting blade 45 on the first rotating table 2 and the first limit plate 14, the second limit plate 15, the first positioning plate 94 and the second positioning plate 95.

[0030] Working principle: Vertical cutting: The output shaft of the second motor 81 drives the second gear 83 to rotate, and drives the first gear 82, the first transmission shaft 71, the second transmission shaft 74, the second bevel gear 73 and the third bevel gear 75 to rotate through meshing transmission, and drives the corresponding first bevel gear 72 to rotate through meshing transmission, and the first bevel gear 72 drives the support shaft 22, the first rotating table 2, the second rotating table 3 and the two groups of cutting machines 4 to rotate, thereby realizing the cutting angle adjustment of the two cutting blades 45. At this time, the cutting direction of the two groups of cutting blades 45 is perpendicular to the moving direction of the adjustment table 13.

[0031] While the support shaft 22 of the second rotating table 3 rotates, the two groups of fourth bevel gears 93 drive the screw rod 91 to rotate by meshing with the first bevel gear 72, and drive the two groups of connecting frames 92 to slide on the support frame 11 through threaded transmission, so that the first positioning plate 94 moves away from the center of the rotating plate 23, and the second positioning plate 95 approaches the center of the rotating plate 23 until the set position. At this time, the ends of the two groups of aluminum alloy profiles are positioned by the first limit plate 14 and the second positioning plate 95 respectively, and the sides are limited by the corresponding side limit plates 17. After the initial limitation, the output shaft of the first cylinder 101 pushes the top plate 102 and the side limit plate 17 to cooperate to clamp the aluminum alloy profile, and the output shaft of the second cylinder 103 pushes the top block 104 to clamp and fix the top of the aluminum alloy profile.

[0032] During vertical cutting, there are two modes: one, the end of the aluminum alloy profile in contact with the first limit plate 14 and the second positioning plate 95 is uneven and needs to be cut flat. At this time, both cutting blades 45 are working, and the cutting length of the aluminum alloy profile is equal to the distance between the two cutting blades 45; the second, the end of the aluminum alloy profile in contact with the first limit plate 14 and the second positioning plate 95 is flat. At this time, only the cutting blade 45 on the first rotating table 2 performs the cutting operation, and the cutting length of the aluminum alloy profile is equal to the distance between the cutting blade 45 on the first rotating table 2 and the first limit plate 14 or the second positioning plate 95. The output end of the first electric slide 5 drives the support plate 6 to move, thereby controlling the cutting blade 45 on the first rotating table 2 to move to the set position.

[0033] During cutting, the output end of the second electric slide 41 drives the adjustment frame 42, the first motor 43 and the cutting blade 45 to move to cut the aluminum alloy profile. When the cutting blade 45 cuts the aluminum alloy profile on one side, the aluminum profile on the other side can be unloaded or loaded synchronously, thereby improving the cutting efficiency.

[0034] Inclined cutting: The output shaft of the second motor 81 controls the two sets of cutting blades 45 to rotate to the second cutting angle position through transmission. When the first bevel gear 72 rotates, it drives the fourth bevel gear 93 and the screw 91 to rotate again through meshing transmission, so that the first positioning plate 94 moves to the side close to the center of the rotating plate 23, and the second positioning plate 95 moves to the side away from the center of the rotating plate 23. At this time, the first positioning plate 94 and the second limiting plate 15 are used to position the end of the aluminum alloy profile, and then clamped and fixed by the clamping assembly 10. The required cutting length of the aluminum alloy profile is equal to the length of the cutting and forming on the side of the first positioning plate 94. It should be noted that the setting of the knife groove 16 on the second limiting plate 15 allows the cutting blade 45 to be inserted into the knife groove 16 during cutting, which can effectively reduce the length of waste at the end of the aluminum alloy profile during inclined cutting.

[0035] After the aluminum profile is fixed, the cutting machine 4 moves to cut the aluminum profile on the side of the first positioning plate 94. After the cutting of the aluminum alloy profile on the side of the first positioning plate 94 is completed, since the cutting blade 45 is in a tilted state at this time, the positioning of the end of the aluminum alloy profile on the other side is no longer in the same position. Therefore, when cutting the aluminum alloy profile on the other side, the output end of the first electric slide 5 drives the support plate 6 to move, thereby adjusting the position of the cutting blade 45 on the first rotating table 2, thereby ensuring the consistency of the cutting length.

[0036] It should be noted that the first electric slide 5 of the present invention can adjust the position of the cutting blade 45 on the first rotating table 2, so it can also achieve unequal length cutting of two groups of aluminum alloy profiles.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cutting device for aluminum alloy doors and windows processing, characterized by: It comprises a supporting platform (1), a first rotating platform (2), a second rotating platform (3) rotatably connected to the supporting platform (1), and a transmission assembly (7); The support platform (1) is fixedly mounted with a first electric slide (5) and a support plate (6) slidably connected to the support platform (1); the support plate (6) is mounted at the output end of the first electric slide (5); and the first rotating platform (2) is rotatably connected to the support plate (6); The transmission assembly (7) comprises a first transmission shaft (71) rotatably arranged on the support platform (1) and two sets of first bevel gears (72), the two sets of first bevel gears (72) being respectively mounted at the rotational connection between the first rotating platform (2) and the second rotating platform (3), one end of the first transmission shaft (71) being fixedly mounted with a second bevel gear (73), the other end being slidably connected with a second transmission shaft (74), the second bevel gear (73) being meshed with the corresponding first bevel gear (72) for transmission, the second transmission shaft (74) being rotatably connected with the support plate (6), and the end of the second transmission shaft (74) being fixedly mounted with a third bevel gear (75) meshed with the corresponding first bevel gear (72) for transmission; A driving assembly (8) is installed on the support platform (1), and the driving assembly (8) is used to drive the first transmission shaft (71) to rotate; A movable cutting machine (4) is installed on both the first rotating table (2) and the second rotating table (3); The driving assembly (8) drives the cutting machines (4) on the first rotating table (2) and the second rotating table (3) to rotate synchronously and in opposite directions via the transmission assembly (7), thereby controlling the cutting direction and enabling the two groups of cutting machines (4) to synchronously cut the two ends of the raw material.

2. The cutting device for processing aluminum alloy doors and windows according to claim 1, characterized in that: The support platform (1) comprises a support frame (11), an operating table (12) is fixedly mounted on the support frame (11), an adjustment table (13) having the same height as the operating table (12) is slidably connected to the support frame (11), a first limit plate (14) and a second limit plate (15) are fixedly mounted on the operating table (12), a knife groove (16) is obliquely provided on the second limit plate (15), and a plurality of side limit plates (17) are fixedly mounted on both the operating table (12) and the adjustment table (13).

3. The cutting device for processing aluminum alloy doors and windows according to claim 2, characterized in that: The invention also comprises a positioning assembly (9), wherein the positioning assembly (9) comprises a screw rod (91) rotatably mounted on a support frame (11), a connecting frame (92) slidably connected to the support frame (11) being threadedly matched on the screw rod (91), a fourth bevel gear (93) being fixedly mounted on the screw rod (91), two sets of fourth bevel gears (93) both meshingly transmitting with the first bevel gear (72), a first positioning plate (94) being fixedly mounted on one connecting frame (92), and a second positioning plate (95) being fixedly mounted on the other connecting frame (92), the first positioning plate (94), the second positioning plate (95), the first limiting plate (14) and the second limiting plate (15) being used for aluminum alloy cutting positioning and being arranged parallel to each other, and the first limiting plate (14) and the second positioning plate (95) being collinear.

4. The cutting device for processing aluminum alloy doors and windows according to claim 3, characterized in that: The first rotating platform (2) comprises a rotating frame (21), a supporting shaft (22) is fixedly mounted on the bottom of the rotating frame (21), a rotating plate (23) is fixedly mounted on the top of the rotating frame (21), the axis of the supporting shaft (22) and the axis of the rotating plate (23) are colinear, a knife hole (24) is formed on the rotating plate (23), the knife hole (24) and the axis of the rotating plate (23) intersect, the rotating plate (23) on the first rotating platform (2) is rotatably connected to the adjusting platform (13), and the supporting shaft (22) of the first rotating platform (2) is rotatably connected to the supporting plate (6).

5. The cutting device for processing aluminum alloy doors and windows according to claim 4, characterized in that: The second rotating platform (3) has the same structure as the first rotating platform (2); the rotating plate (23) on the second rotating platform (3) is rotatably connected to the operating platform (12); and the second rotating platform (3) is rotatably connected to the supporting frame (11) via a supporting shaft (22); The two sets of the first bevel gears (72) are respectively fixedly mounted on the support shafts (22) of the first rotating platform (2) and the second rotating platform (3).

6. The cutting device for processing aluminum alloy doors and windows according to claim 5, characterized in that: The support plate (6) and the adjustment platform (13) have the same sliding direction, and a line connecting the centers of the rotating plates (23) on the second rotating platform (3) and the first rotating platform (2) is parallel to the sliding direction of the adjustment platform (13).

7. The cutting device for processing aluminum alloy doors and windows according to claim 4, characterized in that: The second positioning plate (95) and the knife hole (24) have a set distance.

8. The cutting device for processing aluminum alloy doors and windows according to claim 5, characterized in that: The cutting machine (4) comprises a second electric slide (41) fixedly mounted on a rotating frame (21); an adjusting frame (42) slidably connected to the rotating frame (21) is fixedly mounted on the output end of the second electric slide (41); the sliding direction of the adjusting frame (42) is parallel to the opening direction of the knife hole (24); a first motor (43) and a baffle (46) are fixedly mounted on the adjusting frame (42); a connecting shaft (44) is rotatably connected to the adjusting frame (42); the output shaft of the first motor (43) and the connecting shaft (44) are driven by a belt; a cutting blade (45) is fixedly mounted on the connecting shaft (44); the cutting blade (45) passes through the knife hole (24); and a plurality of side limit plates (17) are distributed at both ends of the cutting blade (45).

9. The cutting device for processing aluminum alloy doors and windows according to claim 2, characterized in that: The driving assembly (8) comprises a second motor (81) fixedly mounted on the support frame (11) and a first gear (82) fixedly mounted on the first transmission shaft (71); the output shaft of the second motor (81) is fixedly connected to a second gear (83); and the second gear (83) is meshed with the first gear (82) for transmission.

10. The cutting device for processing aluminum alloy doors and windows according to any one of claims 2 to 9, characterized in that: It also includes a plurality of clamping assemblies (10), The clamping assembly (10) comprises a first cylinder (101), the first cylinder (101) is fixedly mounted on an operating table (12) or an adjustment table (13), the pushing direction of the first cylinder (101) is perpendicular to the sliding direction of the adjustment table (13), the output shaft of the first cylinder (101) is fixedly mounted with a top plate (102), each top plate (102) corresponds to at least one set of side limit plates (17), the top plate (102) and the side limit plates (17) work together to clamp and fix the two sides of the aluminum alloy, the top plate (102) is fixedly mounted with a second cylinder (103), the output shaft of the second cylinder (103) is fixedly mounted with a top block (104), the top block (104) is used to clamp and fix the top of the aluminum alloy.

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