Cutting mechanism for aluminum alloy door and window processing

Abstract

The utility model discloses a cutting mechanism for aluminum alloy door and window processing, including cutting knife, the side installation of cutting knife has the clamping fixture, and the clamping fixture includes the unlocking sleeve, clamping rod, clamping sleeve, clamping ball, clamping groove, unlocking groove and cooperation groove, and the clamping ball is installed in the cooperation groove and rolls, and the clamping groove is established in the outside of clamping rod, and the unlocking groove is established in the unlocking sleeve and is the variable diameter type structure, and the cooperation groove is established in the lateral wall of clamping sleeve, and the outside of clamping sleeve is installed with locking mechanism, and the locking mechanism includes movable groove, locking frame, locking sleeve, vertical board, horizontal board, connecting block, moving spring, moving block, movable plate, locking groove, locking rod and locking plate, and the movable groove is established on movable plate, and the horizontal board is installed in one side of vertical board, and the moving spring is connected with moving block and connecting block, and the locking groove is established in the outside of clamping sleeve, and the locking rod is installed in locking frame, and the locking plate is connected in one end of locking rod, and the utility model ensures the firm installation of cutting knife while realizing the convenient replacement of cutting knife.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy door and window processing and cutting technology, and more specifically, it relates to a cutting mechanism for aluminum alloy door and window processing. Background Technology

[0002] In the context of the rapid development of the modern aluminum alloy door and window manufacturing industry, the performance and convenience of various processing equipment directly affect production efficiency and product quality. As the core equipment in the production line, the cutting mechanism of aluminum alloy door and window processing undertakes the key task of accurately cutting aluminum profiles. However, existing technologies generally suffer from the technical defect of not being able to easily replace the cutting blades. This problem seriously restricts the improvement of production efficiency. Specifically, most traditional cutting equipment adopts a complex fixed structure. When replacing the cutting blades, operators often need to use a variety of professional tools such as wrenches, Allen wrenches, and screwdrivers to install and remove the cutting blades. This cumbersome replacement method not only greatly prolongs the equipment downtime and reduces the operating efficiency of the production line, but also places high demands on the professional skills of operators and increases the risk of misoperation. Especially in production environments where different specifications of blades need to be frequently replaced to adapt to the cutting needs of various aluminum profiles, this time-consuming replacement process has become a bottleneck affecting the overall production rhythm. As a result, the cutting blade replacement operation is cumbersome, which brings many adverse effects to enterprises, such as loss of working hours and reduced efficiency.

[0003] Secondly, while some manufacturers in the industry have seemingly solved the problem of convenient blade replacement by installing certain devices, these improved designs are still too simple and crude in terms of structure and material selection, resulting in low overall stability. These simple fixing structures often only consider the ease of replacement, ignoring the complex challenges faced by cutting equipment in actual industrial environments, such as rotation, vibration, and impact. During the cutting operation, the cutting blade bears huge rotational inertia and cutting resistance. These simple connection structures are prone to slight displacement due to factors such as continuous vibration during equipment operation. As processing time accumulates, these slight displacements gradually develop into obvious loosening or even complete detachment. When the cutting blade is not fixed stably, it will not only lead to a decrease in cutting accuracy, affecting product quality and consistency, but may also cause serious safety accidents due to the sudden detachment of the blade at high speed, causing direct injury to the equipment and operators. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a cutting mechanism for aluminum alloy door and window processing to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A cutting mechanism for processing aluminum alloy doors and windows, comprising a cutting blade, a locking device installed on one side of the cutting blade, the locking device comprising an unlocking sleeve, a locking rod, a locking sleeve, a locking ball, a locking groove, an unlocking groove, and a mating groove, the unlocking sleeve being rotatably mounted on the outside of the locking sleeve, the locking sleeve being detachably fitted on the outside of the locking sleeve, the locking ball being rotatably mounted in the mating groove, a portion of the locking ball being engaged in the locking groove, the locking groove being located on the outside of the locking rod, the unlocking groove being a variable diameter structure located in the unlocking sleeve, the mating groove being located on the side wall of the locking sleeve, and a locking mechanism installed on the outside of the locking sleeve, the locking mechanism comprising a movable groove, a locking frame, and a lock. The system comprises a fixed sleeve, a longitudinal plate, a transverse plate, a connecting block, a movable spring, a movable block, a movable plate, a locking groove, a locking rod, and a locking plate. The movable groove is located on the movable plate. The locking frame is fixedly installed on one side of the unlocking sleeve. The locking sleeve is slidably installed on the outside of the locking sleeve. The longitudinal plate is fixedly installed on one side of the locking sleeve. The transverse plate is fixedly installed on one side of the longitudinal plate. The connecting block is fixedly installed on the outside of the locking sleeve. The two ends of the movable spring are connected to the movable block and the connecting block, respectively. The movable block is fixedly installed on one side of the movable plate. The movable plate is rotatably installed on the outside of the locking sleeve. The locking groove is located on the outside of the locking sleeve. The locking rod is slidably installed in the locking frame. One end of the locking rod is inserted into the locking groove. The locking plate is fixedly connected to one end of the locking rod.

[0006] The present invention is further configured such that a frame is provided on the outside of the cutting blade, a mounting bracket is detachably provided on the top of the frame, a drive assembly is detachably provided on the mounting bracket, a drive shaft is rotatably mounted on the mounting bracket, the output end of the drive assembly is connected to the drive shaft, a fixing plate is fixedly provided on one end of the drive shaft, the cutting blade is detachably mounted on one side of the fixing plate, the locking rod is fixedly connected to one side of the fixing plate, and a mounting plate is detachably provided on one side of the cutting blade.

[0007] The present invention is further configured such that a movable frame is provided on the frame, a placement platform is detachably provided on the movable frame, rollers are rotatably provided below the movable frame, and a slide rail is detachably provided on the frame. The rollers roll within the slide rail. This design forms a stable and reliable workpiece conveying system. The precise cooperation between the rotatable rollers and the slide rail ensures the smooth movement of the movable frame, improves the stability and positional accuracy of workpiece conveying during the cutting process, and enhances the overall cutting quality and work efficiency.

[0008] The present invention is further configured such that a groove is provided on the outer side of the locking sleeve, and a slider is slidably disposed in the groove. The slider is fixedly installed on the inner side of the locking sleeve. This structural design realizes precise guidance and limiting between the locking sleeve and the locking sleeve. The precise cooperation between the groove and the slider ensures that the locking sleeve can only move in a straight line along the preset trajectory without deflection or shaking, which significantly improves the motion accuracy and stability of the locking mechanism.

[0009] The present invention is further configured such that a movable spring is connected to one side of the locking sleeve, and a thrust bearing is detachably provided on one side of the movable plate. The other end of the movable spring is connected to the thrust bearing. This elastic connection mechanism ensures the stable reset of the locking sleeve. At the same time, the setting of the thrust bearing greatly reduces the frictional resistance between the movable plate and the movable spring when the movable plate rotates, making the operation easier and smoother.

[0010] The present invention is further configured such that a movable hole is provided in the connecting block, and a movable rod is connected to one side of the movable block. One end of the movable rod is slidably inserted into the movable hole. This plug-in limiting structure precisely controls the movement trajectory and range of the movable block and the movable spring. The sliding of the movable rod in the movable hole ensures that it can only reciprocate on the predetermined path without deflection, thereby improving the operating accuracy and stability of the locking mechanism.

[0011] The present invention is further configured such that a locking spring is movably sleeved on the outside of the locking rod, and the two ends of the locking spring are respectively connected to the locking plate and the retaining sleeve. This elastic constraint design provides the locking rod with a continuous restoring force, ensuring that the locking rod can accurately return to the locked state.

[0012] The present invention is further configured such that one end of the locking rod and the edge of the inner wall of the locking groove are both designed with rounded corners. This humanized design significantly reduces the frictional resistance and stress concentration between the locking rod and the locking groove during the insertion and removal process. The rounded corners guide the locking rod to smoothly enter the locking groove without jamming or scratching, thus reducing material wear and deformation.

[0013] Compared with the prior art, this utility model provides a cutting mechanism for aluminum alloy door and window processing, which has the following advantages: 1. The locking device innovatively solves the key defect of cumbersome blade replacement in existing aluminum alloy door and window processing cutting mechanisms through the careful coordination of the unlocking sleeve, locking rod, locking sleeve, locking ball, locking groove, unlocking groove, and mating groove. This device adopts a rotary drive principle, achieving convenient installation and removal of the cutting blade through simple rotation and pulling actions. This innovative design eliminates the need for operators to use professional tools such as wrenches, Allen wrenches, and screwdrivers; blade installation and removal can be completed simply by rotation and pulling, significantly simplifying the operation process and greatly shortening maintenance time. Especially in production environments where different specifications of cutting blades need to be frequently changed to adapt to various aluminum profile cutting needs, this quick connection method greatly improves the flexibility and maintenance efficiency of the equipment, effectively avoiding the risk of improper blade installation or damage due to improper operation. It provides a convenient and efficient blade replacement solution for aluminum alloy door and window processing cutting mechanisms, fundamentally improving the practicality and ease of operation of the equipment, significantly reducing enterprise maintenance costs and downtime, and improving the overall operating efficiency of the production line.

[0014] 2. The locking mechanism consists of a movable groove, locking frame, locking sleeve, longitudinal plate, transverse plate, connecting block, moving spring, moving block, movable plate, locking groove, locking rod, and locking plate. It innovatively solves the fundamental defect of low cutting blade fixing stability in existing technologies. This mechanism is designed to form a multi-layered anti-loosening system: firstly, the locking rod engages with the locking groove to form the first mechanical lock; secondly, the inner wall of the locking sleeve limits the outer wall of the locking plate, providing the second layer of protection; and thirdly, the staggered limiting formed by the movable plate, transverse plate, and longitudinal plate provides the third layer of locking, ensuring that even under the influence of vibration, cutting impact, and other complex factors during high-speed operation of the equipment, the locking structure can still maintain its position. With its high stability, the locking groove design and the rounded corner structure at one end of the locking rod reduce friction and wear, improving operational smoothness and service life. This multi-layered anti-loosening system fundamentally eliminates the possibility of the cutting blade loosening or even falling off due to external vibration or internal cutting impact during high-speed rotation. It effectively avoids product quality problems caused by decreased cutting accuracy and prevents serious safety accidents caused by sudden blade detachment at high speeds. It provides a stable and reliable working guarantee for aluminum alloy door and window processing cutting mechanisms, significantly improving equipment safety and service life, and providing solid technical support for the normal production and operation of enterprises. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a cutting mechanism for processing aluminum alloy doors and windows according to this utility model; Figure 2 This is a schematic diagram of the drive shaft and cutting blade in this utility model; Figure 3 This is a schematic diagram of the locking device and locking mechanism in this utility model; Figure 4 This is a cross-sectional structural diagram of the locking device and locking mechanism in this utility model; Figure 5 This is a cross-sectional view of the locking device and locking mechanism in this utility model from a second angle.

[0016] In the diagram: 1. Cutting blade; 2. Unlocking sleeve; 3. Locking rod; 4. Locking sleeve; 5. Locking ball; 6. Locking groove; 7. Unlocking groove; 8. Mating groove; 9. Movable groove; 10. Locking frame; 11. Locking sleeve; 12. Vertical plate; 13. Horizontal plate; 14. Connecting block; 15. Moving spring; 16. Moving block; 17. Movable plate; 18. Locking groove; 19. Locking rod; 20. Locking plate; 21. Frame; 22. Mounting frame; 23. Drive assembly; 24. Drive shaft; 25. Fixed plate; 26. Mounting plate; 27. Movable frame; 28. Placement platform; 29. ​​Roller; 30. Slide rail; 31. Slide groove; 32. Slider; 33. Movable spring; 34. Thrust bearing; 35. Moving hole; 36. Moving rod; 37. Locking spring. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0020] Please see Figures 1-5A cutting mechanism for processing aluminum alloy doors and windows includes a cutting blade 1. A locking device is installed on one side of the cutting blade 1. The locking device includes an unlocking sleeve 2, a locking rod 3, a locking sleeve 4, a locking ball 5, a locking groove 6, an unlocking groove 7, and a mating groove 8. The unlocking sleeve 2 is rotatably installed on the outside of the locking sleeve 4. The locking sleeve 4 is detachably fitted on the outside of the locking sleeve 4. The locking ball 5 is rolled in the mating groove 8. A portion of the locking ball 5 is engaged in the locking groove 6. The locking groove 6 is located on the outside of the locking rod 3. The unlocking groove 7 has a variable diameter structure and is located in the unlocking sleeve 2. The mating groove 8 is located on the side wall of the locking sleeve 4. A locking mechanism is installed on the outside of the locking sleeve 4. The locking mechanism includes a movable groove 9, a locking frame 10, a locking sleeve 11, a vertical plate 12, a horizontal plate 13, a connecting block 14, a moving spring 15, and a moving... The system comprises a block 16, a movable plate 17, a locking groove 18, a locking rod 19, and a locking plate 20. The movable groove 9 is located on the movable plate 17. The locking frame 10 is fixedly installed on one side of the unlocking sleeve 2. The locking sleeve 11 is slidably installed on the outside of the locking sleeve 4. The longitudinal plate 12 is fixedly installed on one side of the locking sleeve 11. The transverse plate 13 is fixedly installed on one side of the longitudinal plate 12. The connecting block 14 is fixedly installed on the outside of the locking sleeve 4. The two ends of the moving spring 15 are respectively connected to the moving block 16 and the connecting block 14. The moving block 16 is fixedly installed on one side of the movable plate 17. The movable plate 17 is rotatably installed on the outside of the locking sleeve 4. The locking groove 18 is located on the outside of the locking sleeve 4. The locking rod 19 is slidably installed in the locking frame 10. One end of the locking rod 19 is inserted into the locking groove 18. The locking plate 20 is fixedly connected to one end of the locking rod 19.

[0021] A frame 21 is provided on the outside of the cutting blade 1. A mounting bracket 22 is detachably provided on the top of the frame 21. A drive assembly 23 is detachably provided on the mounting bracket 22. A drive shaft 24 is rotatably mounted on the mounting bracket 22. The output end of the drive assembly 23 is connected to the drive shaft 24. A fixing plate 25 is fixedly provided on one end of the drive shaft 24. The cutting blade 1 is detachably mounted on one side of the fixing plate 25. A locking rod 3 is fixedly connected to one side of the fixing plate 25. A mounting plate 26 is detachably provided on one side of the cutting blade 1.

[0022] The frame 21 is provided with a movable frame 27, the movable frame 27 is detachably provided with a placement platform 28, the movable frame 27 is rotatably provided with a roller 29 below it, and the frame 21 is detachably provided with a slide rail 30, the roller 29 is rotatably positioned in the slide rail 30.

[0023] In this embodiment, when the device is needed, the aluminum alloy door and window workpiece to be cut is first placed on the corresponding position on the placement platform 28, and the position to be cut is aligned with the position of the cutting blade 1. The workpiece can be fixed by an external device. Then, the drive assembly 23 is turned on, and the drive assembly 23 drives the drive shaft 24 to rotate. Then, the drive shaft 24 drives the fixing plate 25 to rotate, and the fixing plate 25 drives the cutting blade 1 and the mounting plate 26 to rotate through the locking rod 3. Then, the movable frame 27 is pushed, and the movable frame 27 drives the bottom roller 29 to move along the slide rail 30, so that the movable frame 27 drives the placement platform 28 and the workpiece above it to move. Then, the cutting blade 1 will cut the workpiece, and the cutting blade 1 will enter the clearance groove opened on the placement platform 28 and the movable frame 27 to realize the cutting work of the aluminum alloy door and window workpiece.

[0024] Please see Figures 3-5 As a further implementation of the overall device: a groove 31 is provided on the outer side of the locking sleeve 4, and a slider 32 is slidably provided in the groove 31. The slider 32 is fixedly installed on the inner side of the locking sleeve 11.

[0025] A movable spring 33 is connected to one side of the locking sleeve 11, and a thrust bearing 34 is detachably provided on one side of the movable plate 17. The other end of the movable spring 33 is connected to the thrust bearing 34.

[0026] A movable hole 35 is provided in the connecting block 14, and a movable rod 36 is connected to one side of the movable block 16. One end of the movable rod 36 is slidably inserted into the movable hole 35.

[0027] A locking spring 37 is movably sleeved on the outside of the locking rod 19, and the two ends of the locking spring 37 are connected to the locking plate 20 and the locking sleeve 4 respectively.

[0028] Both the locking rod 19 and the inner edge of the locking groove 18 are designed with rounded corners.

[0029] More specifically, when the cutting blade 1 needs to be replaced, firstly, rotate the movable plate 17 clockwise, causing the movable plate 17 to drive the movable groove 9 and the thrust bearing 34 on one side to rotate clockwise. The movable plate 17 will also drive the moving block 16 on one side to rotate clockwise. Then, the moving block 16 will drive the moving rod 36 on one side to rotate clockwise along the moving hole 35. The moving block 16 and the connecting block 14 will cooperate to compress the moving spring 15. When the moving spring 15 is compressed to its limit, the movable groove 9 will rotate to the position corresponding to the horizontal plate 13. Then, push the locking sleeve 11. The locking sleeve 11 will drive the inner slider 32 to slide along the slide groove 31. Then, the locking sleeve 11 will drive the vertical plate 12 and the horizontal plate 13 on one side to slide through the movable groove 9. The locking sleeve 11 and the thrust bearing 34 will cooperate to compress the moving spring 33. When the movable spring 33 is compressed to its limit, the horizontal plate 13 closest to the locking sleeve 11 passes through the movable groove 9 and moves to the other side of the movable plate 17. Then the movable plate 17 is released, and the movable spring 15 pushes the movable block 16 to rotate and reset. Then the movable block 16 drives one side of the movable rod 36 to reverse along the movable hole 35. The movable block 16 will also drive the movable groove 9 and the thrust bearing 34 to rotate in the opposite direction through the movable plate 17. When the movable spring 15 is fully reset, the movable groove 9 rotates and resets to a position that does not correspond to the horizontal plate 13. Then the vertical plate 12 and the horizontal plate 13 closest to the locking sleeve 11 cooperate to limit the locking sleeve 11 to one side of the movable plate 17, so that the locking sleeve 11 no longer limits the outer wall of the locking plate 20. Then the unlocking sleeve 2 is rotated in the forward direction. The locking rod 19, locking plate 20, and locking spring 37 are rotated forward by the locking bracket 10 on one side. Then, the inner wall of the locking groove 18 presses against one end of the locking rod 19. Due to the rounded corner design of one side of the inner wall of the locking groove 18 and one end of the locking rod 19, one end of the locking rod 19 slides out of the locking groove 18, and the other end of the locking rod 19 is stretched outward by the locking spring 37 driven by the locking plate 20. At the same time, the unlocking sleeve 2 drives the inner diameter-type unlocking groove 7 to rotate forward, so that the wider side of the inner wall of the unlocking groove 7 corresponds to the position of the mating groove 8. Then, the locking sleeve 4 is pulled outward. The locking sleeve 4 drives the mating groove 8, the locking ball 5, and other components to move outward. Then, the inner wall of the locking groove 6 presses against the outer wall of the locking ball 5, and then part of the locking ball 5 exits from the locking groove 6. The ball 5 gradually rolls outward along the mating groove 8, allowing a portion of it to enter the unlocking groove 7, thus completely removing the locking sleeve 4. Because the mating groove 8 has a concave design, it prevents the ball 5 from falling inside the locking sleeve 4. Then, following the same steps, remove the other locking sleeves 4. Next, remove the mounting plate 26 and the cutting blade 1, allowing for easy removal of the cutting blade 1 without tools. The cutting blade 1 can then be replaced. After replacement, reinstall the cutting blade 1 on one side of the fixing plate 25, then install the mounting plate 26 on the outside of the cutting blade 1, ensuring the locking rod 3 passes through the pre-drilled holes in the cutting blade 1 and mounting plate 26. Finally, fit the locking sleeve 4 onto the outside of the locking rod 3.Then, the unlocking sleeve 2 is rotated in the opposite direction. The unlocking sleeve 2, through the locking frame 10, drives the locking plate 20, the locking rod 19, and the locking spring 37 to rotate in the opposite direction. The unlocking sleeve 2 also drives the inner unlocking groove 7 to rotate in the opposite direction. Then, the inner wall of the unlocking groove 7 presses against the outer wall of the locking ball 5, causing part of the locking ball 5 to gradually roll out of the unlocking groove 7. The locking ball 5 will roll inward along the mating groove 8, causing part of the locking ball 5 to be inserted into the locking groove 6. At this time, the locking frame 10 moves the locking rod 19 and other components to the position corresponding to the original locking groove 18. Then, the locking spring 37 pulls the locking plate 20 inward. The locking plate 20 slides, and then the locking rod 19 slides back to its original position. One end of the locking rod 19 is then reinserted into the original locking groove 18. The movable plate 17 is then rotated forward again, causing the interactive groove and thrust bearing 34 to rotate forward. The movable plate 17 then drives the moving rod 36 to rotate forward along the moving hole 35 via the moving block 16. The moving block 16 and connecting block 14 then press against the moving spring 15. When the moving groove 9 rotates to the position corresponding to the locking plate, the moving spring 33 pushes the locking sleeve 11, causing the inner slider 32 to move along... The slide groove 31 slides back to its original position, and then the locking sleeve 11 drives the three horizontal plates 13 to slide back to their original position via the longitudinal plate 12. When the movable spring 33 is fully reset, the other two horizontal plates 13 slide to the sides of the movable plate 17 respectively. Then the movable plate 17 is released, and the movable spring resets again, pushing the movable block 16 to rotate back to its original position. Then the movable block 16 drives the movable rod 36 to rotate back to its original position along the movable hole 35, and the movable block 16 drives the movable plate 17 to rotate back to its original position. This causes the movable plate 17 to drive the thrust bearing 34 and the movable groove 9 to rotate back to their original position, causing the movable groove 9 to rotate again. The lock sleeve 11 is reset to a position not corresponding to the horizontal plate 13. Then, the vertical plate 12 and the corresponding two horizontal plates 13 cooperate to limit and support the lock sleeve 11 to one side of the movable plate 17. Combined with the slider 32 and the sliding groove 31, the lock sleeve 11 is prevented from moving. The inner wall of the lock sleeve 11 then stably limits the outer wall of the locking plate 20, preventing the locking plate 20 and the locking rod 19 from moving. Finally, the locking rod 19 and the locking groove 18 cooperate to limit the locking frame 10, preventing accidental rotation of the locking frame 10 and the unlocking sleeve 2, thus avoiding accidental unlocking and ensuring a stable installation of the cutting blade 1.

[0030] In summary, when using or operating the equipment: First, place the aluminum alloy door and window workpiece to be cut on the corresponding position on the placement table 28, aligning the position to be cut with the position of the cutting blade 1. The workpiece can be fixed by an external device. Then, turn on the drive assembly 23, which drives the drive shaft 24 to rotate. The drive shaft 24 then drives the fixing plate 25 to rotate, causing the fixing plate 25 to rotate through the locking rod 3, which in turn drives the cutting blade 1 and the mounting plate 26 to rotate. Then, push the movable frame 27, which drives the bottom roller 29 to move along the slide rail 30. This causes the movable frame 27 to move the placement table 28 and the workpiece above it. The cutting blade 1 then cuts the workpiece and enters the clearance groove on the placement table 28 and the movable frame 27, thus completing the cutting of the aluminum alloy door and window workpiece.

[0031] When the cutting blade 1 needs to be replaced, first rotate the movable plate 17 clockwise, causing the movable plate 17 to drive the movable groove 9 and the thrust bearing 34 on one side to rotate clockwise. The movable plate 17 will also drive the moving block 16 on one side to rotate clockwise. Then, the moving block 16 will drive the moving rod 36 on one side to rotate clockwise along the moving hole 35. The moving block 16 and the connecting block 14 will cooperate to press the moving spring 15. When the moving spring 15 is pressed to its limit, the movable groove 9 will rotate to the position corresponding to the horizontal plate 13. Then, push the locking sleeve 11. The locking sleeve 11 will drive the inner slider 32 to slide along the slide groove 31. Then, the locking sleeve 11 will drive the vertical plate 12 and the horizontal plate 13 on one side to slide through the movable groove 9. The locking sleeve 11 and the thrust bearing 34 will cooperate to press the movable spring 33. When the moving spring 33 is compressed to its limit, the horizontal plate 13 closest to the locking sleeve 11 passes through the movable groove 9 and moves to the other side of the movable plate 17. Then the movable plate 17 is released, the moving spring 15 pushes the moving block 16 to rotate and reset. Then the moving block 16 drives one side of the moving rod 36 to reverse along the moving hole 35, and the moving block 16 will drive the movable groove 9 and the thrust bearing 34 to rotate in the opposite direction through the movable plate 17. When the moving spring 15 is fully reset, the movable groove 9 rotates and resets to a position that does not correspond to the horizontal plate 13. Then the vertical plate 12 and the horizontal plate 13 closest to the locking sleeve 11 cooperate to limit the locking sleeve 11 to one side of the movable plate 17, so that the locking sleeve 11 no longer limits the outer wall of the locking plate 20. Then the unlocking sleeve 2 is rotated in the forward direction, and the unlocking sleeve 2 passes through One side of the locking frame 10 drives the locking rod 19, locking plate 20, and locking spring 37 to rotate forward. Then, the inner wall of the locking groove 18 presses against one end of the locking rod 19. Due to the rounded corner design of one side of the inner wall of the locking groove 18 and one end of the locking rod 19, one end of the locking rod 19 slides out of the locking groove 18, and the other end of the locking rod 19 is stretched outward by the locking spring 37 driven by the locking plate 20. At the same time, the unlocking sleeve 2 drives the inner variable diameter opening of the unlocking groove 7 to rotate forward, so that the wider side of the inner wall of the unlocking groove 7 corresponds to the position of the mating groove 8. Then, the locking sleeve 4 is pulled outward. The locking sleeve 4 drives the mating groove 8, the locking ball 5, and other components to move outward. Then, the inner wall of the locking groove 6 presses against the outer wall of the locking ball 5, and then part of the locking ball 5 exits from the locking groove 6. The ball 5 gradually rolls outward along the mating groove 8, allowing a portion of it to enter the unlocking groove 7, thus completely removing the locking sleeve 4. Because the mating groove 8 has a concave design, it prevents the ball 5 from falling inside the locking sleeve 4. Then, following the same steps, remove the other locking sleeves 4. Next, remove the mounting plate 26 and the cutting blade 1, allowing for easy removal without tools. The cutting blade 1 can then be replaced. After replacement, reinstall the cutting blade 1 on one side of the fixing plate 25, then install the mounting plate 26 on the outside of the cutting blade 1, ensuring the locking rod 3 passes through the pre-drilled holes in the cutting blade 1 and mounting plate 26. Finally, fit the locking sleeve 4 onto the outside of the locking rod 3.Then, the unlocking sleeve 2 is rotated in the opposite direction. The unlocking sleeve 2, through the locking frame 10, drives the locking plate 20, the locking rod 19, and the locking spring 37 to rotate in the opposite direction. The unlocking sleeve 2 also drives the inner unlocking groove 7 to rotate in the opposite direction. Then, the inner wall of the unlocking groove 7 presses against the outer wall of the locking ball 5, causing part of the locking ball 5 to gradually roll out of the unlocking groove 7. The locking ball 5 will roll inward along the mating groove 8, causing part of the locking ball 5 to be inserted into the locking groove 6. At this time, the locking frame 10 moves the locking rod 19 and other components to the position corresponding to the original locking groove 18. Then, the locking spring 37 pulls the locking plate 20 inward. The locking plate 20 slides, and then the locking rod 19 slides back to its original position. One end of the locking rod 19 is then reinserted into the original locking groove 18. The movable plate 17 is then rotated forward again, causing the interactive groove and thrust bearing 34 to rotate forward. The movable plate 17 then drives the moving rod 36 to rotate forward along the moving hole 35 via the moving block 16. The moving block 16 and connecting block 14 then press against the moving spring 15. When the moving groove 9 rotates to the position corresponding to the locking plate, the moving spring 33 pushes the locking sleeve 11, causing the inner slider 32 to move along... The slide groove 31 slides back to its original position, and then the locking sleeve 11 drives the three horizontal plates 13 to slide back to their original position via the longitudinal plate 12. When the movable spring 33 is fully reset, the other two horizontal plates 13 slide to the sides of the movable plate 17 respectively. Then the movable plate 17 is released, and the movable spring resets again, pushing the movable block 16 to rotate back to its original position. Then the movable block 16 drives the movable rod 36 to rotate back to its original position along the movable hole 35, and the movable block 16 drives the movable plate 17 to rotate back to its original position. This causes the movable plate 17 to drive the thrust bearing 34 and the movable groove 9 to rotate back to their original position, causing the movable groove 9 to rotate again. The lock sleeve 11 is reset to a position not corresponding to the horizontal plate 13. Then, the vertical plate 12 and the corresponding two horizontal plates 13 cooperate to limit and support the lock sleeve 11 to one side of the movable plate 17. Combined with the slider 32 and the sliding groove 31, the lock sleeve 11 is prevented from moving. The inner wall of the lock sleeve 11 then stably limits the outer wall of the locking plate 20, preventing the locking plate 20 and the locking rod 19 from moving. Finally, the locking rod 19 and the locking groove 18 cooperate to limit the locking frame 10, preventing accidental rotation of the locking frame 10 and the unlocking sleeve 2, thus avoiding accidental unlocking and ensuring a stable installation of the cutting blade 1.

[0032] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cutting mechanism for processing aluminum alloy doors and windows, comprising a cutting blade (1), characterized in that: A locking device is installed on one side of the cutting blade (1). The locking device includes an unlocking sleeve (2), a locking rod (3), a locking sleeve (4), a locking ball (5), a locking groove (6), an unlocking groove (7), and a mating groove (8). The locking ball (5) is rolled in the mating groove (8). The locking groove (6) is opened on the outside of the locking rod (3). The unlocking groove (7) is opened in the unlocking sleeve (2) with a variable diameter structure. The mating groove (8) is opened on the side wall of the locking sleeve (4). A locking mechanism is installed on the outside of the locking sleeve (4). The locking mechanism includes a movable groove (9), a locking frame (10), a locking sleeve (11), a longitudinal plate (12), a transverse plate (13), and a connecting plate. Connecting block (14), moving spring (15), moving block (16), movable plate (17), locking groove (18), locking rod (19) and locking plate (20). The movable groove (9) is opened on the movable plate (17). The locking frame (10) is installed on one side of the unlocking sleeve (2). The longitudinal plate (12) is installed on one side of the locking sleeve (11). The transverse plate (13) is installed on one side of the longitudinal plate (12). The moving spring (15) is connected to the moving block (16) and connecting block (14). The locking groove (18) is opened on the outside of the locking sleeve (4). The locking rod (19) is installed in the locking frame (10). The locking plate (20) is connected to one end of the locking rod (19).

2. The cutting mechanism for processing aluminum alloy doors and windows according to claim 1, characterized in that: The cutting blade (1) is provided with a frame (21) on the outside. The top of the frame (21) is detachably provided with a mounting bracket (22). The mounting bracket (22) is detachably provided with a drive assembly (23). The mounting bracket (22) is rotatably mounted with a drive shaft (24). The output end of the drive assembly (23) is connected to the drive shaft (24). One end of the drive shaft (24) is fixedly provided with a fixing plate (25). The cutting blade (1) is detachably mounted on one side of the fixing plate (25). The locking rod (3) is fixedly connected to one side of the fixing plate (25). The cutting blade (1) is detachably provided with a mounting plate (26) on one side.

3. A cutting mechanism for processing aluminum alloy doors and windows according to claim 2, characterized in that: The frame (21) is provided with a movable frame (27), the movable frame (27) is detachably provided with a placement platform (28), the movable frame (27) is rotatably provided with a roller (29) below it, the frame (21) is detachably provided with a slide rail (30), and the roller (29) rolls in the slide rail (30).

4. A cutting mechanism for processing aluminum alloy doors and windows according to any one of claims 1-3, characterized in that: The locking sleeve (4) has a groove (31) on its outer side, and a slider (32) is slidably provided in the groove (31). The slider (32) is fixedly installed inside the locking sleeve (11).

5. A cutting mechanism for processing aluminum alloy doors and windows according to claim 4, characterized in that: A movable spring (33) is connected to one side of the locking sleeve (11), and a thrust bearing (34) is detachably provided on one side of the movable plate (17). The other end of the movable spring (33) is connected to the thrust bearing (34).

6. A cutting mechanism for processing aluminum alloy doors and windows according to claim 5, characterized in that: The connecting block (14) has a movable hole (35), and a movable rod (36) is connected to one side of the movable block (16). One end of the movable rod (36) is slidably inserted into the movable hole (35).

7. A cutting mechanism for processing aluminum alloy doors and windows according to claim 6, characterized in that: A locking spring (37) is movably sleeved on the outside of the locking rod (19), and the two ends of the locking spring (37) are connected to the locking plate (20) and the locking sleeve (4) respectively.

8. A cutting mechanism for processing aluminum alloy doors and windows according to claim 7, characterized in that: Both the locking rod (19) and the inner edge of the locking groove (18) are designed with rounded corners.

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