Cutting Device for Processing Aluminum Alloy Doors and Windows

Abstract

The present invention discloses a cutting device for processing aluminum alloy doors and windows, belonging to the technical field of cutting equipment. It includes a support platform, a first rotating table, a second rotating table rotatably connected to the support platform, and a transmission component; a first electric sliding table is fixedly installed on the support platform, and a support plate slidably connected to the support platform is installed at the output end of the first electric sliding table, and the first rotating table is rotatably connected to the support plate; a driving component is installed on the support platform; movable cutting machines are installed on both the first rotating table and the second rotating table. In the present invention, the driving component drives the cutting machines on the first rotating table and the second rotating table to rotate synchronously and in opposite directions through the transmission component, thereby controlling the cutting direction, enabling the two groups of cutting machines to synchronously cut both ends of the raw material, effectively reducing the cutting difficulty and improving the cutting efficiency.

Description

Technical Field

[0001] The present 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 butt joints at the ends of adjacent aluminum alloy door and window profiles are mostly 90-degree butt joints, 45-degree and 135-degree butt joints. Usually, corresponding cutting equipment is used to cut and form the aluminum alloy door and window profiles. When the existing cutting equipment cuts the aluminum alloy door and window profiles, it is mostly single-line cutting. After the processing of one end of the profile is completed, the placement position of the profile is adjusted again to cut and process the other end of the profile, so as to realize the forming of a group of aluminum alloy door and window profiles. Cutting in this way is time-consuming and laborious, and the efficiency is low. In view of this, we propose a cutting device for processing aluminum alloy doors and windows. Summary of the Invention

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

[0004] An embodiment of the present invention provides a cutting device for processing aluminum alloy doors and windows, including a support platform, a first rotating table, a second rotating table rotatably connected to the support platform, and a transmission component;

[0005] A first electric slide and a support plate slidably connected to the support platform are fixedly installed on the support platform. The support plate is installed at the output end of the first electric slide, and the first rotating table is rotatably connected to the support plate;

[0006] The transmission component 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 rotational connection of the first rotating table and the second rotating table. A second bevel gear is fixedly installed at one end of the first transmission shaft, and a second transmission shaft is slidably connected at the other end. The second bevel gear meshes and drives with the corresponding first bevel gear. The second transmission shaft is rotatably connected to the support plate, and a third bevel gear meshing and driving with the corresponding first bevel gear is fixedly installed at the end of the second transmission shaft;

[0007] A driving component is installed on the support platform, and the driving component is used to drive the first transmission shaft to rotate;

[0008] Movable cutting machines are installed on both the first rotating table and the second rotating table;

[0009] The driving component drives the cutting machines on the first rotating table and the second rotating table to rotate synchronously and in opposite directions through the transmission component, so as to control the cutting direction and enable the two groups of cutting machines to cut both ends of the raw material synchronously.

[0010] As a further description of the above technical solution, the support platform includes a support frame, on which an operation table is fixedly installed. A regulating table with the same height as the operation table is slidably connected to the support frame. A first limiting plate and a second limiting plate are fixedly installed on the operation table. A knife groove is obliquely formed on the second limiting plate. A number of side limiting plates are fixedly installed on both the operation table and the regulating table.

[0011] As a further description of the above technical solution, it further includes a positioning component. The positioning component includes a lead screw rotatably installed on the support frame. A connecting frame slidably connected to the support frame is in threaded cooperation with the lead screw. A fourth bevel gear is fixedly installed on the lead screw. Both groups of fourth bevel gears are in meshing transmission with the first bevel gear. A first positioning plate is fixedly installed on one connecting frame, and a second positioning plate is fixedly installed on the other connecting frame. The first positioning plate, the second positioning plate, the first limiting plate and the second limiting plate are used for aluminum alloy cutting positioning and are arranged parallel to each other. The first limiting plate and the second positioning plate are collinear.

[0012] As a further description of the above technical solution, the first rotating table includes a rotating frame. A support shaft is fixedly installed at the bottom of the rotating frame, and a rotating plate is fixedly installed at 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 formed on the rotating plate, and the knife hole intersects with the axis of the rotating plate. The rotating plate on the first rotating table is rotatably connected to the regulating table, and the support shaft of the first rotating table is rotatably connected to the support plate.

[0013] As a further description of the above technical solution, the second rotating table has the same structure as the first rotating table. The rotating plate on the second rotating table is rotatably connected to the operation table, and the second rotating table is rotatably connected to the support frame through the support shaft;

[0014] Two groups of the first bevel gears are respectively fixedly installed on the support shafts of the first rotating table and the second rotating table.

[0015] As a further description of the above technical solution, the support plate has the same sliding direction as the regulating table. The connecting line of the centers of the rotating plates on the second rotating table and the first rotating table is parallel to the sliding direction of the regulating table.

[0016] As a further description of the above technical solution, the second positioning plate has a set distance from the knife hole.

[0017] As a further description of the above technical solution, the cutting machine includes a second electric sliding table fixedly installed on the rotating frame. The output end of the second electric sliding table is fixedly installed with an adjusting frame slidably connected to the rotating frame. 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 installed 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 in belt transmission. A cutting disc is fixedly installed on the connecting shaft. The cutting disc passes through the knife hole. A number of side limiting plates are distributed at both ends of the cutting disc.

[0018] As a further description of the above technical solution, the driving assembly includes a second motor fixedly installed on the support frame and a first gear fixedly installed on the first transmission shaft. The output shaft of the second motor is fixedly connected with a second gear, and the second gear is in meshing transmission with the first gear.

[0019] As a further description of the above technical solution, it further includes a plurality of clamping assemblies.

[0020] The clamping assembly includes a first air cylinder fixedly installed on the operating table or the adjusting table. The pushing direction of the first air cylinder is perpendicular to the sliding direction of the adjusting table. The output shaft of the first air cylinder is fixedly installed with a top plate. Each top plate corresponds to at least one set of side limiting plates. The top plate and the side limiting plates cooperate to clamp and fix both sides of the aluminum alloy. A second air cylinder is fixedly installed on the top plate, and the output shaft of the second air cylinder is fixedly installed with a top block, and the top block is used to clamp and fix the top of the aluminum alloy.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0022] 1. The present invention controls the synchronous and reverse rotation of two groups of cutting machines through the transmission assembly, so as to realize the adjustment of the cutting angles of 45°, 90° and 135° of the two groups of cutting blades, which can adapt to the cutting of the ends of different types of aluminum alloy doors and windows. Moreover, the two groups of cutting machines can simultaneously operate and cut both ends of the aluminum alloy profile, improving the cutting and forming efficiency without secondary adjustment of the cutting position of the aluminum alloy profile.

[0023] 2. The present invention can place two groups of aluminum alloy profiles to be cut, and cooperate with different moving cutting directions of the cutting machines, so as to realize alternate cutting, effectively reducing the time for the cutting machine operation affected by the material change process and further improving the cutting efficiency.

[0024] 3. The present invention realizes the adjustment of the distance between the first rotating table and the second rotating table by driving the first rotating table to move through the first electric sliding table, controls the cutting length of the aluminum alloy doors and windows, and can realize the forming cutting of two groups of aluminum alloy doors and windows with equal length or unequal length, with strong flexibility.

[0025] 4. The present invention controls the movement of the first positioning plate and the second positioning plate while controlling the rotation adjustment of the two cutting machines through the transmission assembly, so as to realize the switching of the positioning position before aluminum alloy cutting and reduce the adjustment difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It 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;

[0027] Figure 2Cross-sectional view of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention;

[0028] Figure 3 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;

[0029] Figure 4 Schematic diagram of the connection structure of the transmission component of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention;

[0030] Figure 5 Schematic diagram of the connection structure of the cutting machine of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention;

[0031] Figure 6 Schematic diagram of the connection structure of the positioning component of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention;

[0032] Figure 7 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;

[0033] Figure 8 Schematic diagram of the clamping component structure of a cutting device for processing aluminum alloy doors and windows disclosed in a preferred embodiment of the present invention.

[0034] Explanation of the reference numerals in the figure: 1, support platform; 2, first rotating table; 3, second rotating table; 4, cutting machine; 5, first electric sliding table; 6, support plate; 7, transmission component; 8, drive component; 9, positioning component; 10, clamping component; 11, support frame; 12, operation table; 13, adjustment table; 14, first limiting plate; 15, second limiting plate; 16, knife groove; 17, side limiting 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 sliding table; 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, lead screw; 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 implementation manners

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] Referring to Figures 1 to 8 , this embodiment discloses a cutting device for processing aluminum alloy doors and windows, including a support platform 1, a first rotating table 2 and a second rotating table 3. The support platform 1 includes a support frame 11, on which an operating table 12 is fixedly installed. A regulating table 13 with the same height as the operating table 12 is slidably connected to the support frame 11. A first limiting plate 14 and a second limiting plate 15 are fixedly installed on the operating table 12. A knife groove 16 is obliquely formed on the second limiting plate 15. A number of side limiting plates 17 are fixedly installed on both the operating table 12 and the regulating table 13 and are distributed on both sides, forming two groups for limiting the sides of the aluminum alloy to be processed. A number of guide rods 18 are fixedly installed on both sides of the operating table 12, and a main control machine 19 for operation control is fixedly installed on the operating table 12.

[0037] Referring to Figures 1 to 5 , the first rotating table 2 includes a rotating frame 21. A support shaft 22 is fixedly installed at the bottom of the rotating frame 21, and a rotating plate 23 is fixedly installed at the top of the rotating frame 21. The axis of the support shaft 22 and the axis of the rotating plate 23 are collinear. A knife hole 24 is formed on the rotating plate 23, and 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 regulating table 13. A collection box 25 is fixedly installed on the rotating frame 21 for collecting cutting debris.

[0038] A first electric sliding table 5 is fixedly installed on the support frame 11. The output end of the first electric sliding table 5 is fixedly connected to a support plate 6. The support plate 6 is slidably connected to the support frame 11 and has the same sliding direction as the regulating table 13. The support shaft 22 of the first rotating table 2 is rotatably connected to the support plate 6. The second rotating table 3 has the same structure as the first rotating table 2. The rotating plate 23 on the second rotating table 3 is rotatably connected to the operating table 12, and the support shaft 22 on the second rotating table 3 is rotatably connected to the support frame 11. The center line connection of the rotating plates 23 on the second rotating table 3 and the first rotating table 2 is parallel to the sliding direction of the regulating table 13. The first electric sliding table 5 drives the first rotating table 2 to move, thereby realizing the adjustment of the distance between the first rotating table 2 and the second rotating table 3, controlling the cutting length of the aluminum alloy doors and windows, and improving the flexibility of cutting.

[0039] Referring to 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 sliding table 41 fixedly installed on the rotating frame 21. The output end of the second electric sliding table 41 is fixedly installed with an adjusting frame 42 slidably connected to the rotating frame 21. The sliding direction of the adjusting frame 42 is parallel to the direction in which the tool hole 24 is opened. A first motor 43 and a baffle 46 are fixedly installed on the adjusting frame 42. A connecting shaft 44 is rotatably connected to the adjusting frame 42. Belt pulleys are installed at one end of the output shaft of the first motor 43 and the connecting shaft 44. The two belt pulleys are driven by a belt, so that the output shaft of the first motor 43 drives the connecting shaft 44 to rotate. A cutting blade 45 is fixedly installed at the end of the connecting shaft 44 away from the belt pulley. The cutting blade 45 passes through the tool hole 24. 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 guiding the cutting debris collected by the baffle 46 into the collection box 25. When the cutting blade 45 is adjusted in angle, it needs to be reset to the initial position. When the cutting blade 45 is in the initial position, the center of the cutting blade 45 is on the extension line of the axis of the rotating plate 23.

[0040] Refer to Figures 2 to 7 , two groups of support shafts 22 are connected by a transmission assembly 7. The transmission assembly 7 includes a first transmission shaft 71 rotatably arranged on the support frame 11 and two groups of first bevel gears 72. The two groups of first bevel gears 72 are fixedly installed on the corresponding support shafts 22. A second bevel gear 73 is fixedly installed at one end of the first transmission shaft 71, and a second transmission shaft 74 is slidably connected to the other end. The second bevel gear 73 is meshed with the first bevel gear 72 on the second rotating table 3 for transmission. The second transmission shaft 74 is rotatably connected to the support plate 6. A third bevel gear 75 is fixedly installed at the end of the second transmission shaft 74. The third bevel gear 75 is meshed with the first bevel gear 72 on the first rotating table 2 for transmission. The transmission assembly 7 is used to control the cutting blades 45 on the first rotating table 2 and the second rotating table 3 to rotate in opposite directions, so as to adjust the cutting blade 45 between the first cutting angle and the second cutting angle, so that the cutting blade 45 can adapt to the 90-degree, 45-degree and 135-degree cutting of the end of the aluminum alloy door and window. The first cutting angle is a right angle, and the second cutting angle is an oblique angle.

[0041] The cutting device further includes a driving assembly 8 and two groups of positioning assemblies 9. The driving assembly 8 includes a second motor 81 fixedly installed on the support frame 11 and a first gear 82 fixedly installed on the first transmission shaft 71. The output shaft of the second motor 81 is fixedly connected with a second gear 83. The second gear 83 is meshed with the first gear 82 for transmission.

[0042] The positioning assembly 9 includes a lead screw 91 rotatably mounted on the support frame 11. A connecting frame 92 that is in threaded engagement with the lead screw 91 and slidably connected to the support frame 11 is provided. The connecting frame 92 is slidably connected to the guide rod 18. A fourth bevel gear 93 is fixedly installed at the end of the lead screw 91. Both groups of fourth bevel gears 93 are in meshing transmission with the first bevel gear 72. A first positioning plate 94 is fixedly installed on one connecting frame 92, and a second positioning plate 95 is fixedly installed 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 positioning the aluminum alloy cutting and are arranged parallel to each other. The first limiting plate 14 and the second positioning plate 95 are collinear. The second positioning plate 95 has a set distance from the tool hole 24. When the end of the aluminum alloy is uneven, the positioning end can be partially cut by the cutting piece 45 on the second rotating table 3, so as to ensure that the length of the aluminum alloy after cutting is qualified.

[0043] Referring to Figure 1 and Figure 8 The cutting device further includes a plurality of clamping assemblies 10. The clamping assembly 10 includes a first cylinder 101. The first cylinder 101 is fixedly installed on the operating table 12 or the adjusting table 13, and the pushing direction of the first cylinder 101 is perpendicular to the sliding direction of the adjusting table 13. A top plate 102 is fixedly installed on the output shaft of the first cylinder 101. Each top plate 102 corresponds to at least one group of side limiting plates 17. The top plate 102 and the side limiting plates 17 jointly act to clamp and fix both sides of the aluminum alloy. A second cylinder 103 perpendicular to the horizontal plane is fixedly installed on the top plate 102. A top block 104 is fixedly installed on the output shaft of the second cylinder 103. The top block 104 is used to clamp and fix the top of the aluminum alloy.

[0044] It should be noted that the displacement of the first electric slide table 5 can be detected by a sensor, so as to determine the distance between the two cutting pieces 45 or the distance between the cutting piece 45 on the first rotating table 2 and the first limiting plate 14, the second limiting plate 15, the first positioning plate 94, and the second positioning plate 95.

[0045] Working principle: Vertical cutting: The output shaft of the second motor 81 drives the second gear 83 to rotate. Through meshing transmission, it 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, it drives the corresponding first bevel gear 72 to rotate. 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, so as to realize the cutting angle adjustment of the two cutting pieces 45. At this time, the cutting directions of the two cutting pieces 45 are perpendicular to the moving direction of the adjusting table 13.

[0046] While the support shaft 22 of the second rotating table 3 rotates, the two sets of fourth bevel gears 93 drive the lead screw 91 to rotate through meshing with the first bevel gear 72. Through screw thread transmission, the two sets of connecting frames 92 slide on the support frame 11, causing the first positioning plate 94 to move away from the center of the rotating plate 23, and the second positioning plate 95 to approach the center of the rotating plate 23 until the set position. At this time, the end parts of the two aluminum alloy profiles are respectively positioned by the first limiting plate 14 and the second positioning plate 95, and the sides are limited by the corresponding side limiting plates 17. After preliminary limiting, the output shaft of the first air cylinder 101 pushes against the top plate 102 and the side limiting plate 17 to cooperate and clamp the aluminum alloy profile, and the output shaft of the second air cylinder 103 pushes against the top block 104 to clamp and fix the top of the aluminum alloy profile.

[0047] During vertical cutting, there are two modes. One is that the end of the aluminum alloy profile in contact with the first limiting plate 14 and the second positioning plate 95 is uneven and needs to be cut flat. At this time, both cutting blades 45 work, and the cutting length of the aluminum alloy profile is equal to the distance between the two cutting blades 45. The other is that the end of the aluminum alloy profile in contact with the first limiting 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 limiting plate 14 or the second positioning plate 95. The output end of the first electric sliding table 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.

[0048] During cutting, the output end of the second electric sliding table 41 drives the adjusting 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 one side of the aluminum alloy profile, the aluminum profile on the other side can be unloaded or loaded synchronously, thereby improving the cutting efficiency.

[0049] Inclined cutting: The output shaft of the second motor 81 drives 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 lead screw 91 to rotate again through meshing, causing the first positioning plate 94 to move towards the side closer to the center of the rotating plate 23, and the second positioning plate 95 to move towards 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 for positioning the end of the aluminum alloy profile, and then it is clamped and fixed by the clamping assembly 10. The required cutting length of the aluminum alloy profile is equal to the length of the cut formed on the side of the first positioning plate 94. It should be noted that due to the setting of the tool groove 16 on the second limiting plate 15, the cutting blade 45 can be inserted into the tool groove 16 during cutting, which can effectively reduce the waste length of the end of the aluminum alloy profile during inclined cutting.

[0050] 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 aluminum alloy profile on the side of the first positioning plate 94 is cut, since the cutting blade 45 is in an inclined state at this time, the positioning of the end of the aluminum alloy profile on the other side is no longer at the same position. Therefore, when cutting the aluminum alloy profile on the other side, the output end of the first electric sliding table 5 drives the support plate 6 to move, so as to adjust the position of the cutting blade 45 on the first rotating table 2, thus ensuring the consistency of the cutting length.

[0051] It should be noted that the present invention is provided with a first electric sliding table 5 to adjust the position of the cutting blade 45 on the first rotating table 2. Therefore, non-equal length cutting of two groups of aluminum alloy profiles can also be achieved.

[0052] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. Cutting device for processing aluminum alloy doors and windows, characterized in that: It includes a support platform (1), a first rotating table (2), a second rotating table (3) rotatably connected to the support platform (1), and a transmission component (7); A first electric slide table (5) is fixedly installed on the support platform (1), and a support plate (6) slidably connected to the support platform (1) is installed at the output end of the first electric slide table (5). The first rotating table (2) is rotatably connected to the support plate (6); The transmission component (7) includes a first transmission shaft (71) rotatably arranged on the support platform (1) and two groups of first bevel gears (72). The two groups of first bevel gears (72) are respectively installed at the rotating connection of the first rotating table (2) and the second rotating table (3). A second bevel gear (73) is fixedly installed at one end of the first transmission shaft (71), and a second transmission shaft (74) is slidably connected to the other end. The second bevel gear (73) meshes and drives with the corresponding first bevel gear (72). The second transmission shaft (74) is rotatably connected to the support plate (6), and a third bevel gear (75) meshing and driving with the corresponding first bevel gear (72) is fixedly installed at the end of the second transmission shaft (74); A driving component (8) is installed on the support platform (1), and the driving component (8) is used to drive the first transmission shaft (71) to rotate; Movable cutting machines (4) are installed on both the first rotating table (2) and the second rotating table (3); The driving component (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 through the transmission component (7), so as to control the cutting direction and enable the two cutting machines (4) to cut both ends of the raw material synchronously; The support platform (1) includes a support frame (11). An operation table (12) is fixedly installed on the support frame (11). An adjustment table (13) with the same height as the operation table (12) is slidably connected to the support frame (11). A first limiting plate (14) and a second limiting plate (15) are fixedly installed on the operation table (12); It further includes a positioning component (9). The positioning component (9) includes a lead screw (91) rotatably installed on the support frame (11). A connecting frame (92) slidably connected to the support frame (11) is in threaded cooperation with the lead screw (91). A fourth bevel gear (93) is fixedly installed on the lead screw (91). The two groups of fourth bevel gears (93) are both meshed and driven with the first bevel gear (72). A first positioning plate (94) is fixedly installed on one connecting frame (92), and a second positioning plate (95) is fixedly installed on the other connecting frame (92).

2. The cutting device for processing aluminum alloy doors and windows according to claim 1, characterized in that: A knife groove (16) is obliquely formed on the second limiting plate (15), and a plurality of side limiting plates (17) are fixedly installed on both the operation 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 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 collinear.

4. The cutting device for processing aluminum alloy doors and windows according to claim 3, wherein: The first rotating table (2) includes a rotating frame (21). A support shaft (22) is fixedly installed at the bottom of the rotating frame (21), and a rotating plate (23) is fixedly installed at the top of the rotating frame (21). The axis of the support shaft (22) and the axis of the rotating plate (23) are collinear. A knife hole (24) is formed in the rotating plate (23), and 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 the support shaft (22) of the first rotating table (2) is rotatably connected to the support plate (6).

5. The cutting device for processing aluminum alloy doors and windows according to claim 4, wherein: The second rotating table (3) has the same structure as the first rotating table (2). The rotating plate (23) on the second rotating table (3) is rotatably connected to the operating table (12), and the second rotating table (3) is rotatably connected to the support frame (11) through the support shaft (22). Two groups of the first bevel gears (72) are respectively fixedly installed on the support shafts (22) of the first rotating table (2) and the second rotating table (3).

6. The cutting device for processing aluminum alloy doors and windows according to claim 5, wherein: The support plate (6) has the same sliding direction as the adjusting table (13). The center line connection of the rotating plates (23) on the second rotating table (3) and the first rotating table (2) is parallel to the sliding direction of the adjusting table (13).

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

8. The cutting device for processing aluminum alloy doors and windows according to claim 5, characterized in that: The cutting machine (4) includes a second electric sliding table (41) fixedly installed on the rotating frame (21). The output end of the second electric sliding table (41) is fixedly installed with an adjusting frame (42) slidably connected to the rotating frame (21). 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). 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 installed on the connecting shaft (44), and the cutting blade (45) passes through the knife hole (24). A number of side limiting 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) includes a second motor (81) fixedly installed on the support frame (11) and a first gear (82) fixedly installed on the first transmission shaft (71). The output shaft of the second motor (81) is fixedly connected with a second gear (83), and the second gear (83) meshes with the first gear (82) for transmission.

10. The cutting device for processing aluminum alloy doors and windows according to any one of claims 2-9, characterized in that: It further includes a number of clamping assemblies (10). The clamping assembly (10) includes a first cylinder (101). The first cylinder (101) is fixedly installed on the operation table (12) or the adjustment table (13). The pushing direction of the first cylinder (101) is perpendicular to the sliding direction of the adjustment table (13). A top plate (102) is fixedly installed on the output shaft of the first cylinder (101). 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) cooperate to clamp and fix both sides of the aluminum alloy. A second cylinder (103) is fixedly installed on the top plate (102). A top block (104) is fixedly installed on the output shaft of the second cylinder (103). The top block (104) is used to clamp and fix the top of the aluminum alloy.

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