Burr grinding machine for aluminum alloy door and window machining

Abstract

The invention discloses an aluminum alloy door and window machining burr grinding machine and belongs to the technical field of grinding machines, the aluminum alloy door and window machining burr grinding machine comprises a supporting platform and a clamping frame installed on the supporting platform, an air cylinder is installed at the top of the clamping frame, the telescopic end of the air cylinder is connected with an XY transverse moving module, and a connecting frame is fixed to the lower end of the XY transverse moving module; and a double-shaft motor is mounted in the connecting frame, a polishing disc is connected to an output shaft at the lower end of the double-shaft motor, and an air cooling cleaning part is mounted on the side edge of the connecting frame. According to the burr grinding machine for aluminum alloy door and window machining, air cooling can be conducted on a grinding disc through rotation of a fan, meanwhile, an obliquely-arranged air outlet spray head is used for driving the air outlet spray head to synchronously rotate when a center rod rotates, and air flow sprayed outwards through the air outlet spray head can assist in cooling the grinding disc; and meanwhile, chippings at the bottom of the grinding disc can be blown off.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding machines, and particularly to a burr grinding machine for processing aluminum alloy doors and windows. Background Technique

[0002] During the processing of aluminum alloy doors and windows, burrs are easily generated at the cutting positions. The existence of these burrs not only affects the aesthetics of the doors and windows, but may also cause an increase in the gap at the welding position, thereby affecting the sealing performance and overall strength of the welded section of the profile. Therefore, in order to ensure the flatness of the edges of aluminum alloy doors and windows, polishing liquid and a grinding disc are usually used to grind the aluminum alloy doors and windows. Chemical mechanical polishing (CMP) is achieved by the combination of the polishing liquid and the grinding disc. During the CMP process, the chemical components in the polishing liquid will react with the surface of the workpiece to form an oxide film or other compounds that are easy to remove. At the same time, the grinding disc will apply mechanical pressure to the surface of the workpiece and drive the workpiece to move regularly. Under the combined action of the polishing liquid and the grinding disc, the convex parts on the surface of the workpiece will be removed by mechanical wear, while the concave parts are protected by the protective film formed by the chemical reaction, thus achieving efficient global flatness.

[0003] For example, in a Chinese patent with the publication number: CN219293566U, the patent name: A grinding device for processing doors and windows, and the publication date: July 4, 2023, it includes a grinding table. Support rods are provided on both the left and right sides of the top of the grinding table. Installation plates are provided at the tops of the support rods. Fixed covers are provided on the outer surfaces of the installation plates. A first motor is provided inside the fixed cover. A protective cover is provided at the output end of the first motor. Telescopic cylinders are provided inside the protective covers. Fixing plates are provided at the piston rods of the telescopic cylinders. Among the above-mentioned existing technologies, the following technical problems exist:

[0004] When the existing grinding machine grinds aluminum alloy doors and windows, it performs grinding operations through the grinding disc on it. However, during the grinding process, it is not convenient to effectively cool the grinding disc, resulting in the grinding disc being in an overheated state for a long time, which easily reduces the service life of the grinding disc. At the same time, a certain amount of debris will be generated during the grinding process. When the debris accumulates between the grinding disc and the doors and windows, after the grinding disc comes into contact with the debris for a long time, it will not only exacerbate the wear of the grinding disc, but may also reduce the contact area between the grinding disc and the grinding area of the doors and windows, reducing the grinding efficiency.

[0005] Therefore, we propose a burr grinding machine for processing aluminum alloy doors and windows to facilitate solving the problems mentioned above. Summary of the Invention

[0006] The object of the present invention is to provide a deburring and grinding machine for aluminum alloy doors and windows, so as to solve the problems raised in the above-mentioned background technology. At present, when the existing grinding machines on the market grind aluminum alloy doors and windows, they use the grinding discs on them for grinding operations. However, during the grinding process, it is not convenient to effectively cool the grinding discs, resulting in the grinding discs being in an overheated state for a long time, which easily reduces the service life of the grinding discs. At the same time, a certain amount of debris will be generated during the grinding process. When the debris accumulates between the grinding discs and the doors and windows, after the grinding discs are in contact with the debris for a long time, it will not only exacerbate the wear of the grinding discs, but also may reduce the contact area between the grinding discs and the grinding areas of the doors and windows, thereby reducing the grinding efficiency.

[0007] To achieve the above object, the present invention provides the following technical solution: A deburring and grinding machine for aluminum alloy doors and windows, including a support platform and a clamping frame installed on the support platform. A cylinder is installed on the top of the clamping frame, and the telescopic end of the cylinder is connected to an XY cross-slide module. The lower end of the XY cross-slide module is fixed with an adapter frame, and a dual-shaft motor is installed inside the adapter frame. The lower output shaft of the dual-shaft motor is connected to a grinding disc. A liquid spraying plate is installed on the clamping frame. The grinding disc combines with the polishing liquid sprayed by the liquid spraying plate to perform chemical mechanical polishing on the burrs of the aluminum alloy doors and windows. An air-cooling cleaning component is installed on the side of the adapter frame for cooling the grinding disc and cleaning the debris below the grinding disc. Clamping components for limiting the doors and windows to be ground are installed on the left and right sides of the support platform.

[0008] Preferably, the XY cross-slide module includes a first slide table and a first motor installed on the first slide table. The output end of the first motor is connected to a first screw rod, and a second slide table is installed on the first screw rod. The second slide table is installed on the guide rail of the first slide table through a slider. A second motor is installed on the second slide table, and the output end of the second motor is connected to a second screw rod. A carrier seat is installed on the second screw rod, and the carrier seat is installed on the guide rail of the second slide table through a slider.

[0009] By adopting the above technical solution, through the sliding cooperation of the slider and the guide rail, it is avoided that the second slide table and the carrier seat rotate respectively following the first screw rod and the second screw rod.

[0010] Preferably, the air-cooling cleaning component includes a speed reducer. The upper output shaft of the dual-shaft motor is connected to a driving gear through the speed reducer. A linkage gear is arranged on the side of the driving gear, and a central rod is key-connected to the middle of the linkage gear. The central rod is rotatably connected to the side of the adapter frame, and a cooling fan is fixed to the lower end of the central rod. A driving screw rod is installed through the middle of the central rod, and a piston block is fixed to the end of the driving screw rod extending into the inside of the central rod. An extension rod is installed on the lower side of the central rod, and an air outlet nozzle is installed on the extension rod.

[0011] By adopting the above technical solution, the reduction gear can be used to decelerate the upper output shaft of the double-shaft motor.

[0012] Preferably, the middle parts of the driving screw rod and the central rod are in threaded connection, and the surface thread of the driving screw rod is arranged in a reciprocating manner. The upper cross-section of the driving screw rod is arranged in a rectangular structure, and the rectangular section of the driving screw rod can slide on the connecting frame.

[0013] By adopting the above technical solution, when the central rod rotates, the reciprocating thread and the sliding of the rectangular section of the driving screw rod on the connecting frame can be utilized to make the driving screw rod perform reciprocating movement in the vertical direction.

[0014] Preferably, the piston block at the lower end of the driving screw rod can slide inside the central rod, and a sealing ring for improving the sealing performance with the inner cavity of the central rod is circumferentially fixed on the piston block. And the inside of the central rod is arranged as a hollow structure.

[0015] By adopting the above technical solution, the movement of the driving screw rod can make the piston block move synchronously, so as to squeeze the air flow in the inner cavity of the central rod by the movement of the piston block.

[0016] Preferably, the inner cavities of the central rod and the extension rod are interconnected, and an inclined air outlet nozzle is connected to the extension rod. The included angle between the extension lines of the air outlet nozzles on the two extension rods on the side of the central rod is an acute angle.

[0017] By adopting the above technical solution, when the air flow inside the central rod is pressurized, the air flow can be ejected outwards through the air outlet nozzle on the extension rod.

[0018] Preferably, a plurality of branch plates are evenly distributed in the middle of the support platform, and the plurality of branch plates are combined horizontally and vertically to form a grid-shaped support plane. The longitudinal section of a single branch plate is arranged in an isosceles triangle structure.

[0019] By adopting the above technical solution, the grid-shaped support plane formed by the horizontal and vertical combination of a plurality of branch plates facilitates the falling of the debris generated by grinding outwards.

[0020] Preferably, the clamping component includes a positioning clamping plate, and the positioning clamping plate is connected to the support platform through an auxiliary spring. The side of the positioning clamping plate away from the center of the support platform is in contact with the convex block integrally formed on the support platform in the initial state. And a guiding magnetic block is fixed at the end of the rod on the positioning clamping plate. A conductive magnetic ring is arranged on the side of the guiding magnetic block, and the conductive magnetic ring is fixed on the side of the support platform.

[0021] By adopting the above technical solution, the magnetic attraction force generated by the conductive magnetic ring on the guiding magnetic block after being electrified can make the positioning clamping plate move towards the center direction of the support platform, so as to limit the doors and windows to be polished.

[0022] Preferably, the side of the positioning clamping plate and the support platform is slidably connected, and the electromagnetic guiding ring can generate a magnetic suction force on the guiding magnet at the end of the rod body on the positioning clamping plate after being energized.

[0023] By adopting the above technical solution, through the magnetic suction force of the guiding magnet, the positioning clamping plate can be made to move towards the center direction of the support platform.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: The deburring and grinding machine for processing aluminum alloy doors and windows can cool the grinding disc by the rotation of the fan. At the same time, by using the inclined air outlet nozzle, when the central rod rotates, it drives the air outlet nozzle to rotate synchronously. The airflow ejected from the air outlet nozzle can not only assist in cooling the grinding disc, but also blow off the debris at the bottom of the grinding disc;

[0025] 1. A cooling fan is provided. The rotation of the central rod can make the cooling fan rotate synchronously. By using the rotation of the cooling fan, the grinding disc below can be cooled by air cooling. At the same time, through the reciprocating movement of the piston block, the airflow inside the central rod can be extruded into the extension rod and ejected outward through the air outlet nozzle. The airflow ejected from the air outlet nozzle can not only assist in cooling the grinding disc, but also use the oblique airflow to blow away the debris at the bottom of the grinding disc. The polishing liquid ejected from the liquid spraying plate and the rotation of the grinding disc are used to achieve chemical mechanical polishing of the aluminum alloy doors and windows;

[0026] 2. A branch plate is provided. Through a plurality of horizontally and vertically combined branch plates, a grid-shaped support plane is formed in the middle of the support platform. The grid-shaped support plane facilitates the debris to fall into the interior of the support platform through the grid, and at the same time, the inclined surface on the side of the branch plate can guide the debris;

[0027] 3. A positioning clamping plate is provided. After the electromagnetic guiding ring is energized, it can generate a magnetic suction force on the guiding magnet. By using the magnetic suction force, the positioning clamping plate can be made to move towards the center direction of the support platform, so as to fix the aluminum alloy doors and windows to be ground. After the electromagnetic guiding ring is powered off, the positioning clamping plate can impact the support platform after resetting. By using the vibration generated by the impact on the support platform, the debris remaining on the inclined surface of the branch plate can be shaken off. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front three-dimensional structural schematic diagram of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the support platform and the branch plate of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the cylinder and the XY cross-slide module of the present invention;

[0031] Figure 4 Structural schematic diagram of the bearing seat and connecting frame of the present invention;

[0032] Figure 5 Structural schematic diagram of the branch plate of the present invention;

[0033] Figure 6 For the present invention Figure 2 Enlarged structural schematic diagram at position A in;

[0034] Figure 7 Structural schematic diagram of the dual-axis motor and speed reducer of the present invention;

[0035] Figure 8 Structural schematic diagram of the extension rod and air outlet nozzle of the present invention;

[0036] Figure 9 Cross-sectional structural schematic diagram of the central rod and piston block of the present invention.

[0037] In the figure: 1, support platform; 2, clamping frame; 3, cylinder; 4, XY cross-slide module; 401, first slide; 402, first motor; 403, first screw; 404, second slide; 405, second motor; 406, second screw; 407, bearing seat; 5, connecting frame; 6, dual-axis motor; 7, grinding disc; 8, air-cooled cleaning component; 801, speed reducer; 802, power gear; 803, linkage gear; 804, central rod; 805, cooling fan; 806, driving screw; 807, piston block; 808, extension rod; 809, air outlet nozzle; 9, branch plate; 10, clamping component; 101, positioning clamping plate; 102, auxiliary spring; 103, guiding magnetic block; 104, electromagnetic guiding ring; 11, convex block; 12, liquid spraying plate. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Embodiment 1: Please refer to Figures 1-9, when the existing grinding machine grinds aluminum alloy doors and windows, it uses the grinding disc 7 on it for grinding operations. However, during the grinding process, it is not easy to effectively cool the grinding disc 7, resulting in the grinding disc 7 being in an overheated state for a long time, which easily reduces the service life of the grinding disc 7. At the same time, a certain amount of debris will be generated during the grinding process. When the debris accumulates between the grinding disc 7 and the doors and windows, after the grinding disc 7 comes into contact with the debris for a long time, it will not only exacerbate the wear of the grinding disc 7, but also may reduce the contact area between the grinding disc 7 and the grinding area of the doors and windows, reducing the grinding efficiency. To solve this technical problem, the following technical content is disclosed in this embodiment. A deburring grinding machine for aluminum alloy door and window processing includes a support platform 1 and a clamping frame 2 installed on the support platform 1. A cylinder 3 is installed on the top of the clamping frame 2, and the telescopic end of the cylinder 3 is connected to the XY cross-slide module 4. A connecting frame 5 is fixed at the lower end of the XY cross-slide module 4, and a dual-shaft motor 6 is installed inside the connecting frame 5. The lower output shaft of the dual-shaft motor 6 is connected to a grinding disc 7. An air-cooling cleaning component 8 is installed on the side of the connecting frame 5 for cooling the grinding disc 7 and cleaning the debris below the grinding disc 7. Clamping components 10 for limiting the doors and windows to be ground are installed on the left and right sides of the support platform 1. The XY cross-slide module 4 includes a first slide 401 and a first motor 402 installed on the first slide 401. The output end of the first motor 402 is connected to a first screw 403, and a second slide 404 is installed on the first screw 403. The second slide 404 is installed on the guide rail of the first slide 401 through a slider. A second motor 405 is installed on the second slide 404, and the output end of the second motor 405 is connected to a second screw 406. A bearing seat 407 is installed on the second screw 406, and the bearing seat 407 is installed on the guide rail of the second slide 404 through a slider. The air-cooling cleaning component 8 includes a reducer 801, and the upper output shaft of the dual-shaft motor 6 is connected to a driving gear 802 through the reducer 801. A linkage gear 803 is arranged on the side of the driving gear 802, and a central rod 804 is key-connected to the middle of the linkage gear 803. The central rod 804 is rotatably connected to the side of the connecting frame 5, and a cooling fan 805 is fixed at the lower end of the central rod 804. A driving screw 806 is installed through the middle of the central rod 804, and a piston block 807 is fixed at the end of the driving screw 806 extending into the interior of the central rod 804. An extension rod 808 is installed on the side of the lower end of the central rod 804, and an air outlet nozzle 809 is installed on the extension rod 808. The middle part of the driving screw 806 and the central rod 804 are threadedly connected, and the thread on the surface of the driving screw 806 is arranged in a reciprocating manner. The upper cross-section of the driving screw 806 is set as a rectangular structure. The rectangular section of the driving screw 806 can slide on the connecting frame 5. The piston block 807 at the lower end of the driving screw 806 can slide inside the central rod 804, and a sealing ring for improving the sealing performance with the inner cavity of the central rod 804 is circumferentially fixed on the piston block 807. And the interior of the central rod 804 is set as a hollow structure,The inner cavities of both the central rod 804 and the extension rod 808 are interconnected, and an inclined air outlet nozzle 809 is connected to the extension rod 808. The included angle between the extension lines of the air outlet nozzles 809 on the two extension rods 808 on the side of the central rod 804 is an acute angle.

[0040] When it is necessary to limit the position of the aluminum alloy doors and windows, place the aluminum alloy doors and windows in the middle of the support platform 1, and then fix the aluminum alloy doors and windows through the clamping component 10 on the side of the support platform 1. Then, control the XY cross-movement module 4 and the grinding disc 7 to move downward and contact the aluminum alloy doors and windows through the air cylinder 3. At this time, the first motor 402 can be turned on. The activation of the first motor 402 can use the first screw rod 403 to make the second sliding table 404 move in the X-axis direction on the first sliding table 401. By turning on the second motor 405, after the second motor 405 is turned on, the second screw rod 406 can be rotated, thereby making the bearing seat 407 connected by threads move in the Y-axis direction. The adjustment of the grinding position of the grinding disc 7 is realized through the movement of the XY cross-movement module 4 in the X-axis and Y-axis directions. Connect the liquid spraying plate 12 with the external polishing liquid conveying module. During grinding, the polishing liquid conveying module can be used to convey the polishing liquid into the liquid spraying plate 12. At this time, the polishing liquid is sprayed out from the liquid spraying plate 12 towards the aluminum alloy doors and windows to be ground. Turn on the double-axis motor 6. After the double-axis motor 6 is turned on, its grinding disc 7 can be rotated to realize deburring. Thus, the chemical mechanical polishing of the aluminum alloy doors and windows is realized by the combined action of the polishing liquid and the grinding disc 7. After the double-axis motor 6 is turned on, the upper output shaft is decelerated by the speed reducer 801, and the rotational power is transmitted to the driving gear 802. After the driving gear 802 rotates, it can drive the center rod 804 to rotate by using the meshing-connected linkage gear 803. Through the rotation of the center rod 804, the cooling fan 805 rotating at the lower end can be used to cool the grinding disc 7 by air cooling. The middle part of the center rod 804 and the driving screw rod 806 are connected by reciprocating threads, and at the same time, the rectangular section above the driving screw rod 806 can only slide along the connecting frame 5. Therefore, when the center rod 804 rotates, the driving screw rod 806 can be made to move up and down reciprocally in the vertical direction. When the driving screw rod 806 moves downward, the piston block 807 can be made to move inside the center rod 804. After the piston block 807 moves, the air flow inside the center rod 804 is squeezed out into the extension rod 808. The air flow in the extension rod 808 is sprayed out through the air outlet nozzle 809. The air flow sprayed out through the air outlet nozzle 809 can also be used to cool the grinding disc 7. When the driving screw rod 806 drives the piston block 807 to move upward, the air outlet nozzle 809 sucks in the external air flow, and this reciprocates to realize cooling. The air outlet nozzle 809 is inclined. When the center rod 804 rotates, the air outlet nozzle 809 on the extension rod 808 can be made to rotate synchronously. Through the rotation of the air outlet nozzle 809, not only can different positions on the grinding disc 7 be blown, but also the inclined air outlet nozzle 809 can blow the air flow obliquely below the grinding disc 7, thereby blowing away the debris below the grinding disc 7.

[0041] Embodiment 2: The technical content disclosed in this embodiment is a further improvement based on the above Embodiment 1. The following technical content is disclosed in this embodiment. A plurality of branch plates 9 are evenly distributed in the middle of the support platform 1, and the plurality of branch plates 9 are horizontally and vertically combined to form a grid-shaped support plane. The longitudinal section of a single branch plate 9 is set as an isosceles triangle structure. The clamping component 10 includes a positioning clamping plate 101, and the positioning clamping plate 101 is connected to the support platform 1 through an auxiliary spring 102. One side edge of the positioning clamping plate 101 away from the center of the support platform 1 is in contact with the convex block 11 integrally formed on the support platform 1 in the initial state. A guiding magnetic block 103 is fixed at the end of the rod on the positioning clamping plate 101. A guiding electromagnetic ring 104 is arranged on the side of the guiding magnetic block 103, and the guiding electromagnetic ring 104 is fixed on the side of the support platform 1. The side of the positioning clamping plate 101 and the support platform 1 is in sliding connection, and the guiding electromagnetic ring 104 can generate a magnetic attraction force on the guiding magnetic block 103 at the end of the rod on the positioning clamping plate 101 after being powered on.

[0042] When grinding aluminum alloy doors and windows, place the aluminum alloy doors and windows on the upper end of the branch plate 9, and then power on the guiding electromagnetic ring 104. The powered-on guiding electromagnetic ring 104 can generate a magnetic attraction force on the guiding magnetic block 103. When the magnetic attraction force acts, the positioning clamping plate 101 can be made to move towards the center direction of the support platform 1. By using the movement of the positioning clamping plate 101, the aluminum alloy doors and windows to be ground can be clamped. Since the middle part of the support platform 1 is composed of a plurality of branch plates 9 horizontally and vertically combined to form a grid-shaped support plane, the debris generated during the processing can fall into the collection area inside the support platform 1 through the grid gaps. The branch plate 9 with an isosceles triangle structure in the longitudinal section can guide the debris, so that the debris can better enter the inside of the support platform 1 along the inclined surface of the branch plate 9. After processing the aluminum alloy doors and windows, power off the guiding electromagnetic ring 104. After the guiding electromagnetic ring 104 is powered off, the positioning clamping plate 101 rebounds under the action of the auxiliary spring 102. After resetting, the positioning clamping plate 101 impacts the convex block 11 on the support platform 1. By using the impact on the convex block 11, the support platform 1 can be made to vibrate, so that the debris on the support platform 1 can be better shaken down into the grid gaps.

[0043] The content not described in detail in this specification belongs to the known prior art of those skilled in the art.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A machine for grinding burrs of aluminum alloy doors and windows, comprising a support platform (1) and a clamping frame (2) mounted on the support platform (1), a cylinder (3) being mounted on the top of the clamping frame (2), and the telescopic end of the cylinder (3) being connected to an XY lateral movement module (4), a connecting frame (5) being fixed at the lower end of the XY lateral movement module (4), and a double-axis motor (6) being mounted inside the connecting frame (5), a grinding disc (7) being connected to the output shaft at the lower end of the double-axis motor (6), a liquid spraying plate (12) being mounted on the clamping frame (2), and the polishing liquid sprayed by the grinding disc (7) and the liquid spraying plate (12) being combined to perform chemical mechanical polishing on the burrs of the aluminum alloy doors and windows, characterized in that: An air-cooling cleaning component (8) is installed on the side of the connecting frame (5) for cooling the grinding disc (7) and cleaning the debris under the grinding disc (7). Clamping components (10) for limiting the position of the doors and windows to be polished are installed on the left and right sides of the support platform (1).

2. The burr grinding machine for aluminum alloy doors and windows according to claim 1, characterized in that: The XY lateral movement module (4) comprises a first slide (401) and a first motor (402) mounted on the first slide (401); the output end of the first motor (402) is connected to a first screw (403), and the first screw (403) is mounted on a second slide (404); the second slide (404) is mounted on a guide rail of the first slide (401) via a slider; the second slide (404) is mounted on a second motor (405), and the output end of the second motor (405) is connected to a second screw (406); the second screw (406) is mounted on a bearing seat (407), and the bearing seat (407) is mounted on the guide rail of the second slide (404) via a slider.

3. The burr grinding machine for aluminum alloy doors and windows according to claim 1, characterized in that: The air-cooling cleaning component (8) comprises a reducer (801), and the upper output shaft of the dual-axis motor (6) is connected to a power gear (802) via the reducer (801); a linkage gear (803) is arranged on the side of the power gear (802), and a center rod (804) is keyed in the middle of the linkage gear (803); the center rod (804) is rotatably connected to the side of the connecting frame (5), and a cooling fan (805) is fixed to the lower end of the center rod (804); a driving screw (806) is installed through the middle of the center rod (804), and a piston block (807) is fixed to one end of the driving screw (806) extending into the center rod (804); an extension rod (808) is installed on the side of the lower end of the center rod (804), and an air outlet nozzle (809) is installed on the extension rod (808).

4. The burr grinding machine for aluminum alloy doors and windows according to claim 3 is characterized in that: The middle parts of the driving screw (806) and the center rod (804) are threadedly connected, and the surface thread of the driving screw (806) is arranged to be reciprocating. The cross section of the upper end of the driving screw (806) is arranged to be a rectangular structure, and the rectangular section of the driving screw (806) can slide on the connecting frame (5).

5. The burr grinding machine for aluminum alloy doors and windows according to claim 3 is characterized in that: The piston block (807) at the lower end of the driving screw rod (806) is able to slide inside the center rod (804), and a sealing ring is fixed around the piston block (807) to improve the sealing performance with the internal cavity of the center rod (804), and the interior of the center rod (804) is set as a hollow structure.

6. The burr grinding machine for aluminum alloy doors and windows according to claim 3, characterized in that: The internal cavities of the central rod (804) and the extension rod (808) are interconnected, and an inclined air outlet nozzle (809) is connected to the extension rod (808). The angle between the extension lines of the air outlet nozzles (809) on the two extension rods (808) on the side of the central rod (804) is an acute angle.

7. The burr grinding machine for aluminum alloy doors and windows according to claim 1, characterized in that: A plurality of branch plates (9) are evenly distributed in the middle of the support platform (1), and the plurality of branch plates (9) are combined horizontally and vertically to form a grid-like support plane, and the longitudinal section of a single branch plate (9) is arranged to be an isosceles triangle structure.

8. The burr grinding machine for aluminum alloy doors and windows according to claim 1, characterized in that: The clamping component (10) comprises a positioning clamp (101), and the positioning clamp (101) is connected to the support platform (1) via an auxiliary spring (102); a side edge of the positioning clamp (101) away from the center of the support platform (1) is in initial state in contact with a protrusion (11) integrally formed on the support platform (1); a guide magnetic block (103) is fixed to the end of the rod body on the positioning clamp (101); a conductive magnetic ring (104) is provided on the side of the guide magnetic block (103); and the conductive magnetic ring (104) is fixed to the side of the support platform (1).

9. The burr grinding machine for aluminum alloy doors and windows according to claim 8, characterized in that: The side edges of the positioning clamp (101) and the supporting platform (1) are slidably connected, and the conductive magnetic ring (104) can generate magnetic attraction on the guiding magnetic block (103) at the end of the rod body on the positioning clamp (101) after being energized.

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