Aluminum product automatic punching and polishing device based on machining

Abstract

The invention relates to the technical field of aluminum product machining, in particular to an aluminum product automatic punching and polishing device based on machining, which comprises a base, a conveying device is mounted at the upper end of the base, a clamping and fixing mechanism and a position adjusting mechanism are arranged on the two sides of the conveying device, and the working end of the position adjusting mechanism is connected with a moving seat. And an electric sliding groove is formed in the lower surface of the moving seat, three electric sliding rods are slidably installed in the electric sliding groove, and the three electric sliding rods are correspondingly provided with a punching mechanism, a blowing part and a polishing part correspondingly. Full-process automation of punching, grinding and cleaning is achieved in the modes of multifunctional clamping, multi-procedure automatic integration, vibration suppression, efficient heat dissipation, chip treatment and the like, meanwhile, the machining stability and the surface quality are improved through the centrifugal balance and phase change heat dissipation technology, the device is especially suitable for efficient precision machining of thin-wall parts and precision parts, and the machining efficiency is improved. And the labor cost and the workpiece loss are obviously reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum product processing, and in particular to an automatic drilling and polishing device for aluminum products based on mechanical processing. Background Art

[0002] With the continuous improvement of industrial automation levels, the aluminum product processing field urgently needs to improve existing production processes to meet the growing market demand and improve production efficiency. The current aluminum product processing process usually includes multiple processes such as punching and polishing. Each process works together to achieve aluminum product structural forming and surface treatment.

[0003] However, the existing technology faces the following problems when drilling aluminum products: on the one hand, aluminum has a low melting point (pure aluminum is about 660°C) and good plasticity. The cutting heat during drilling can easily soften the local material, which adheres to the drill bit edge or spiral groove to form built-up edge; at the same time, the cutting heat will cause local heating of the workpiece, resulting in temporary expansion of the hole diameter, and contraction after cooling may cause dimensional deviation and large hole errors; on the other hand, when drilling special-shaped aluminum products or fine aluminum products, the drill bit requires high stability, but the drill bit in the existing technology is prone to vibration, affecting the drilling accuracy. Summary of the Invention

[0004] The purpose of the present invention is to solve the above-mentioned shortcomings in the prior art and to propose an automatic drilling and polishing device for aluminum products based on mechanical processing.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: an automatic punching and polishing device for aluminum products based on mechanical processing, comprising a base, a conveying device is installed on the upper end of the base, a clamping and fixing mechanism and a position adjustment mechanism are provided on both sides of the conveying device, a moving seat is connected to the working end of the position adjustment mechanism, an electric slide is provided on the lower surface of the moving seat, three electric slide rods are slidably installed inside the electric slide rod, and the three electric slide rods are respectively equipped with a punching mechanism, a purge component and a polishing component; The drilling mechanism includes a rotary grinding assembly installed inside the corresponding electric slide rod, the bottom end of the rotary grinding assembly is connected to a drill string, the bottom end of the drill string is detachably mounted with a drill bit, a rotary groove is opened on the upper part of the interior, a first centrifugal assembly is arranged inside the rotary groove, a plurality of heat absorbing elements are connected to the outside of the first centrifugal assembly via a connecting rod, a fin groove is arranged inside the heat absorbing element, and the fin groove and the side wall of the drill string are filled with a phase change material; A plurality of spacing grooves are evenly arranged on the surface of the drill bit from top to bottom, and a second centrifugal component is arranged in the spacing grooves.

[0006] Preferably, the clamping and fixing mechanism includes two fixing seats fixedly mounted on the base, the two fixing seats are symmetrically arranged about the conveying device, a mounting groove is opened inside the fixing seat, an electric slide is installed inside the mounting groove, a first telescopic rod is installed at the working end of the electric slide, the telescopic end of the first telescopic rod faces one end of the conveying device and is fixedly connected to an electric rotating part, and a clamping part is fixedly mounted at the working end of the electric rotating part.

[0007] Preferably, an expansion piece is installed at one end of the clamping piece close to the workpiece, and the expansion piece is used to clamp the tubular workpiece.

[0008] Preferably, the position adjustment mechanism includes two longitudinal moving parts fixedly mounted on the base, a transverse moving part is installed between the working ends of the two longitudinal moving parts, a connecting column is fixedly mounted at the lower end of the transverse moving part, and the lower end of the connecting column is fixedly connected to the moving seat.

[0009] Preferably, the rotary grinding assembly includes a second telescopic rod rotatably mounted inside the electric slide rod, the second telescopic rod is driven to rotate by a micro motor fixedly mounted inside the electric slide rod, the telescopic end of the second telescopic rod is fixedly connected to the drill string, and a plurality of third telescopic rods are fixedly mounted on the outer side wall of the telescopic end of the second telescopic rod, the telescopic end of the third telescopic rod is fixedly connected to a grinding block, and sandpaper of different mesh sizes are respectively attached to the outer surfaces of the grinding blocks.

[0010] Preferably, a plurality of air holes communicating with the interior of the rotating tank are provided on the upper surface of the drill string.

[0011] Preferably, the first centrifugal assembly includes two connecting plates fixedly connected to the inner top wall and inner bottom wall of the drill string, a rotating shell is rotatably installed between the two connecting plates, a vertical first support column is fixedly installed inside the rotating shell, and the outer side of the first support column is rotatably connected to the first centrifugal block and the second centrifugal block from top to bottom in sequence, and the specifications of the first centrifugal block and the second centrifugal block are different.

[0012] Preferably, the second centrifugal assembly comprises a second support column vertically fixedly installed in the spacing groove, and a third centrifugal block is rotatably sleeved on the outer side of the second support column.

[0013] Preferably, the purge member is detachably mounted on the lower end of the corresponding electric slide rod for cleaning the inside of the hole.

[0014] Preferably, the polishing member is detachably mounted on the lower end of the corresponding electric slide rod for polishing the inside of the hole.

[0015] Compared with the prior art, the advantages of the present invention are: 1. This application utilizes a conveyor device and a first telescopic rod to rapidly transport materials to a designated location and achieve stable clamping. For irregularly shaped parts, the opening and closing of the clamping member and the angle adjustment function of the electric rotating member solve the problem of securing irregularly shaped workpieces. For tubular materials, the expansion member extends into the inner wall of the tube to form a tight clamp. Combined with the lifting and lowering motion of the electric slide, this ensures that different types of materials can be precisely positioned before processing, improving the device's adaptability to complex workpieces and avoiding processing deviations caused by unstable clamping.

[0016] 2. In this application, the lateral and longitudinal moving parts are linked to precisely control the spatial position of the connecting column. Combined with the electric slide and electric slide rod below the moving base, rapid switching between components such as the purge, polishing, and second telescopic rod is achieved. After drilling is complete, the device automatically performs deburring and polishing processes in sequence, eliminating the need for manual intervention. This reduces workpiece turnover losses and improves processing efficiency. The multi-process integrated design enables the equipment to complete the entire process, from drilling to surface treatment, making it particularly suitable for the one-stop processing needs of precision parts.

[0017] 3. In this application, the rotating groove within the drill string, combined with the first and second centrifugal blocks, generates a dynamic balancing torque through asymmetric centrifugal force, reducing drilling vibration and significantly improving machining stability under complex working conditions such as thin-walled aluminum parts and deep holes. The phase-change material within the heat-absorbing element and fin grooves utilizes the rotating centrifugal force to drive the liquid phase-change material for forced convection heat dissipation. Combined with the heat absorption of the phase-change material on the drill string sidewalls and the ventilation holes for ventilation, a three-dimensional heat dissipation system is formed, effectively suppressing transient high temperatures during drilling, preventing thermal deformation of soft metal workpieces such as aluminum and copper and drill bit melting and sticking, and ensuring fine machining accuracy.

[0018] 4. The drill's spacer grooves guide chip removal, preventing blockage at the hole bottom that could cause the drill to jam or scratch the workpiece. Combined with a third centrifugal block to offset eccentric rotational vibration, this reduces bending stress and the risk of fatigue cracks in the drill, extending tool life. The grinding block performs coarse grinding during the drilling process, utilizing the cooling effect of the drilling process to prevent sandpaper from melting and sticking. Combined with subsequent purging and polishing steps, this allows for continuous operation, ensuring surface quality and hole wall accuracy.

[0019] To summarize, this application realizes the automation of the entire process of drilling, grinding, and cleaning through multi-functional clamping, multi-process automation integration, vibration suppression and efficient heat dissipation, and chip processing. At the same time, centrifugal balancing and phase change heat dissipation technology are used to improve processing stability and surface quality. It is especially suitable for efficient and precise processing of thin-walled parts and precision parts, significantly reducing labor costs and workpiece losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an automated drilling and polishing device for aluminum products based on mechanical processing proposed by the present invention; Figure 2 This is a schematic diagram of the structure of the cooperation between the transverse moving part and the longitudinal moving part of the automatic punching and polishing device for aluminum products based on mechanical processing proposed by the present invention; Figure 3 Schematic diagram of the structure of the fixed seat and electric slide table of the automatic punching and polishing device for aluminum products based on mechanical processing proposed by the present invention Figure 4 This is a schematic diagram of the structure of the movable base and the electric slide in cooperation with each other in an automatic punching and polishing device for aluminum products based on mechanical processing proposed by the present invention; Figure 5 This is a schematic diagram of the structure of the second telescopic rod and the third telescopic rod cooperating with each other in the automatic punching and polishing device for aluminum products based on mechanical processing proposed by the present invention; Figure 6 This is a schematic diagram of the structure of the rotating groove and the air vents cooperating with each other in an automatic punching and polishing device for aluminum products based on mechanical processing proposed by the present invention; Figure 7 This is a schematic diagram of the structure of the connection plate and the rotating shell cooperating with each other in an automatic punching and polishing device for aluminum products based on machining proposed by the present invention; Figure 8 This is a schematic diagram of the structure of the drill bit and the third centrifugal block cooperating with each other in the automatic drilling and polishing device for aluminum products based on mechanical processing proposed by the present invention; Figure 9 for Figure 8 Enlarged structural diagram at point A in the middle.

[0021] In the figure: 1 base, 2 conveying device, 3 horizontal moving member, 4 longitudinal moving member, 5 fixed seat, 6 electric slide, 7 first telescopic rod, 8 electric rotating member, 9 clamping member, 10 expansion member, 11 connecting column, 12 moving seat, 1301 electric slide, 1302 electric slide, 14 purge member, 15 polishing member, 16 second telescopic rod, 17 third telescopic rod, 18 grinding block, 19 drill string, 20 rotating groove, 21 air vent, 22 heat absorbing member, 23 fin groove, 24 connecting rod, 25 connecting plate, 26 rotating shell, 27 first support column, 28 first centrifugal block, 29 second centrifugal block, 30 drill bit, 31 spacing groove, 32 second support column, 33 third centrifugal block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figures 1 to 9, an automatic punching and polishing device for aluminum products based on mechanical processing, including a base 1, a conveying device 2 is installed on the upper end of the base 1, the conveying device 2 is a prior art, and its specific structural design is not repeated here, both sides of the conveying device 2 are provided with a fixed seat 5 fixedly installed on the base 1, the two fixed seats 5 are symmetrically arranged about the conveying device 2, and the two fixed seats 5 are provided with a mounting groove inside, an electric slide 6 is installed inside the mounting groove, and a first telescopic rod 7 is installed at the working end of the electric slide 6, and the electric slide 6 is used to control the first telescopic rod 7 to move up and down The telescopic end of the first telescopic rod 7 is directed toward one end of the conveying device 2 and is fixedly connected to an electric rotating member 8. A clamping member 9 is fixedly installed on the working end of the electric rotating member 8. The clamping member 9 is a prior art. The electric rotating member 8 adjusts the clamping angle by adjusting the rotation of the clamping member 9. An expansion member 10 is installed on the end of the clamping member 9 close to the workpiece. The expansion member 10 is also a prior art. It can expand on the inner side of a workpiece such as a pipe to clamp it. The cooperation of the clamping member 9 and the expansion member 10 can stably clamp and fix most workpieces.

[0024] Similarly, both sides of the conveying device 2 are provided with longitudinal moving parts 4 fixedly mounted on the base 1, and a transverse moving part 3 is installed between the working ends of the two longitudinal moving parts 4. The lower end (working end) of the transverse moving part 3 is fixedly mounted with a connecting column 11, and the lower end of the connecting column 11 is fixedly mounted with a moving seat 12. The moving seat 12 is located directly above the conveying device 2, and the moving seat 12 can be adjusted in multiple directions through the longitudinal moving part 4 and the transverse moving part 3.

[0025] The lower surface of the movable base 12 is provided with an electric slide 1301. The electric slide 1301 is in one of the shapes of X, Y or O. Three electric slide rods 1302 are slidably installed inside the electric slide 1301. The three electric slide rods 1302 move inside the electric slide 1301 according to the set program, thereby processing the workpiece in sequence. A second telescopic rod 16 is rotatably installed inside one of the electric slide rods 1302. The second telescopic rod 16 is driven by a micro motor (not shown in the figure) fixedly installed inside the electric slide rod 1302. The telescopic end of the second telescopic rod 16 is fixedly connected to a drill string 19, and a drill bit 30 is detachably mounted on the bottom end of the drill string 19. A plurality of third telescopic rods 17 are fixedly mounted on the outer side wall of the telescopic end of the second telescopic rod 16. The telescopic end of the third telescopic rod 17 is fixedly connected to a grinding block 18. Sandpaper of different mesh sizes are attached to the outer surfaces of the grinding blocks 18. The operation of the third telescopic rod 17 can drive a specified grinding block 18 to move, so that the sandpaper of the specified mesh size can be used to grind the surface of the workpiece.

[0026] A rotating groove 20 is provided above the interior of the drill string 19, and a plurality of air vents 21 connected to the interior of the rotating groove 20 are provided on the upper surface of the drill string 19. Two connecting plates 25 are fixedly connected to the inner top wall and inner bottom wall of the drill string 19 respectively. A rotating shell 26 is rotatably installed between the two connecting plates 25, and a vertical first support column 27 is fixedly installed inside the rotating shell 26. The outer side of the first support column 27 is rotatably connected to the first centrifugal block 28 and the second centrifugal block 29 from top to bottom in sequence, and the specifications of the first centrifugal block 28 and the second centrifugal block 29 are different, so that the two can generate asymmetric centrifugal force when rotating.

[0027] A plurality of connecting rods 24 are fixedly connected at equal angles to the outer surface of the rotating shell 26. A heat absorbing element 22 is fixedly connected to one end of the connecting rod 24 away from the rotating shell 26. The heat absorbing element 22 is designed in an arc shape and is provided with a fin groove 23 inside. The fin groove 23 is filled with phase change material. When the rotating shell 26 rotates, it drives the heat absorbing element 22 to rotate. During the rotation, centrifugal force is generated, which drives the phase change material inside the fin groove 23 to flow outward, forming forced convection heat dissipation. The side wall of the drill string 19 is also filled with phase change material. When the drill string 19 rotates, the drill string 19 dissipates heat through the air vents 21 to reduce the possibility of melting and sticking on the drill string 19.

[0028] A plurality of spacing grooves 31 are evenly arranged on the surface of the drill bit 30 from top to bottom. The spacing grooves 31 are used to prevent chips from accumulating at the bottom of the hole or between the drill bit 30 and the hole wall, and prevent the drill bit 30 from getting stuck. A vertical second support column 32 is fixedly installed in each spacing groove 31, and a third centrifugal block 33 is provided on the outer rotating sleeve of the second support column 32. The third centrifugal block 33 can offset part of the centrifugal force eccentricity during rotation, reduce bending stress or fatigue cracks caused by unbalanced vibration of the drill bit 30 body, improve stability during drilling and increase the life of the drill bit 30.

[0029] A purge component 14 is detachably mounted on the lower end of another electric slide bar 1302 , and a polishing component 15 is detachably mounted on the lower end of the last electric slide bar 1302 . Both the purge component 14 and the polishing component 15 are existing technologies and are used to clean and polish the inside of the hole.

[0030] When the device of the present invention is in operation, the material is first transported to the position where it needs to be clamped via the conveyor device 2 installed on the base 1. The first telescopic rods 7 on both sides of the conveyor device 2 extend to clamp the material. If the material is a special-shaped part, the special-shaped part can be clamped by opening or retracting the clamping member 9, and the clamping angle can also be adjusted by the electric rotating member 8. When the tubular material needs to be punched, the expansion member 10 provided on the clamping member 9 will open inside the tube, tightly contacting the inner wall of the tube to form a clamping state, and the electric slide 6 is activated. The electric slide 6 is installed in the fixed base 5, driving the first telescopic rod 7 and the material to rise.

[0031] At this time, the transverse moving part 3 drives the connecting column 11 to move to the appropriate position, and the longitudinal moving part 4 controls the transverse moving part 3 to move up and down, thereby driving the connecting column 11 to move up and down. The lower end of the connecting column 11 is fixedly connected to the moving seat 12, and an electric slide 1301 is provided on the lower surface of the moving seat 12. Three electric slide rods 1302 are installed in the electric slide 1301. The three electric slide rods 1302 are respectively connected to the purge part 14, the polishing part 15 and the second telescopic rod 16. When drilling is required, the electric slide Rod 1302 will move the second telescopic rod 16 to the center point of the movable base 12, and the internal micro motor will be started. At the same time, the third telescopic rod 17 arranged on the outside of the second telescopic rod 16 will extend outward, pushing a grinding block 18 to move outward. Sandpaper of different mesh sizes is attached to the outside of each grinding block 18. The third telescopic rod 17 will push out grinding blocks 18 of different mesh sizes as needed. Then the second telescopic rod 16 will drive the drill string 19 and the grinding block 18 to move downward, and the two are not in a fitted state.

[0032] As the drill string 19 rotates, the first and second centrifugal masses 28, 29 on the first support column 27 undergo centrifugal rotation. Due to the disparity in weight and size, asymmetric centrifugal forces are generated. As the rotational speed changes, the combined centrifugal forces create a dynamically adjusted balancing torque, offsetting vibrations generated during drilling. This reduces drill bit 30 runout (radial runout) by 30%-50%, a particularly significant improvement when drilling thin-walled aluminum parts or deep holes. A connecting rod 24 is also provided on the outer surface of the rotating shell 26, and the other end of the connecting rod 24 is fixedly connected to the heat absorbing element 22. A fin groove 23 is provided inside the heat absorbing element 22. When the rotating shell 26 rotates, it will drive the heat absorbing element 22 to rotate. During the rotation, centrifugal force is generated, which drives the phase change material inside the heat absorbing element 22 to flow outward, forming forced convection heat dissipation. The phase change material is provided in the fin groove 23 as a filler. After melting, the phase change material becomes liquid and flows in the gap of the fin groove 23, forming natural convection (such as a thermal siphon effect), further improving the heat exchange efficiency between the fins. Phase change material is also provided in the side wall of the drill string 19 to absorb heat, and heat is dissipated through the air vents 21 during rotation, reducing the possibility of melting and sticking on the drill string 19. Compared with liquid cooling and wind cooling, the heat dissipation effect of this device is more suitable for fine drilling and drilling of special-shaped devices. The combination of phase change material and fins can suppress the thermal deformation of the workpiece caused by instantaneous high temperature (such as local melting when drilling soft metals such as aluminum and copper), and is especially suitable for rapid drilling of thin-walled parts or precision parts.

[0033] A spacing groove 31 is provided on the drill bit 30. The function of the spacing groove 31 is to prevent chips from accumulating at the bottom of the hole or between the drill bit 30 and the hole wall, thereby preventing the drill bit 30 from getting stuck, the workpiece from being scratched, or the hole diameter from being enlarged due to chip blockage. A second support column 32 is provided in the spacing groove 31, and a third centrifugal block 33 is rotatably connected to the outer side of the second support column 32. The third centrifugal block 33 can offset part of the centrifugal force eccentricity during rotation, reduce bending stress or fatigue cracks of the drill bit 30 body caused by unbalanced vibration, improve stability during drilling, and increase the life of the drill bit 30.

[0034] When drilling downward, the grinding block 18 at the rear end will directly perform rough grinding. Since the inside of the hole is cooled during drilling, the rough grinding effect will be better and will not cause the problem of melting and sticking to the grinding block 18. After drilling, the electric slide 1302 drives the drill bit 30 and other components to slide in the electric slide 1301. After sliding to a corner, the purging part 14 will be driven by the electric slide 1302 to the drilling position to purge the burrs and debris inside. After the purge is completed, the purging part 14 returns to its position and the polishing part 15 will be driven by the electric slide 1302 to the drilling position for polishing.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic punching and polishing device for aluminum products based on mechanical processing, comprising a base (1), a conveying device (2) being installed on the upper end of the base (1), characterized in that: The conveying device (2) is provided with a clamping and fixing mechanism and a position adjustment mechanism on both sides. The working end of the position adjustment mechanism is connected to a movable seat (12). The lower surface of the movable seat (12) is provided with an electric slide groove (1301). Three electric slide rods (1302) are slidably installed inside the electric slide groove (1301). The three electric slide rods (1302) are respectively provided with a punching mechanism, a purge member (14) and a polishing member (15). The punching mechanism includes a rotary grinding assembly installed inside the corresponding electric slide rod (1302), the bottom end of the rotary grinding assembly is connected to a drill string (19), the bottom end of the drill string (19) is detachably mounted with a drill bit (30), a rotary groove (20) is provided on the upper part of the interior, a first centrifugal assembly is provided inside the rotary groove (20), a plurality of heat absorbing components (22) are connected to the outside of the first centrifugal assembly via a connecting rod (24), a fin groove (23) is provided inside the heat absorbing component (22), and the fin groove (23) and the side wall of the drill string (19) are filled with phase change material; The surface of the drill bit (30) is evenly provided with a plurality of spacing grooves (31) from top to bottom, and a second centrifugal assembly is provided in the spacing grooves (31).

2. The automatic drilling and polishing device for aluminum products based on mechanical processing according to claim 1 is characterized in that: The clamping and fixing mechanism comprises two fixing seats (5) fixedly mounted on the base (1), the two fixing seats (5) being symmetrically arranged with respect to the conveying device (2), a mounting groove being provided inside the fixing seat (5), an electric slide (6) being mounted inside the mounting groove, a first telescopic rod (7) being mounted on the working end of the electric slide (6), the telescopic end of the first telescopic rod (7) being directed toward one end of the conveying device (2) and being fixedly connected to an electric rotating member (8), and a clamping member (9) being fixedly mounted on the working end of the electric rotating member (8).

3. The automatic drilling and polishing device for aluminum products based on mechanical processing according to claim 2 is characterized in that: An expansion piece (10) is installed at one end of the clamping piece (9) close to the workpiece, and the expansion piece (10) is used to clamp the tubular workpiece.

4. The automatic drilling and polishing device for aluminum products based on mechanical processing according to claim 1 is characterized in that: The position adjustment mechanism comprises two longitudinal moving members (4) fixedly mounted on a base (1), a transverse moving member (3) being mounted between the working ends of the two longitudinal moving members (4), a connecting column (11) being fixedly mounted at the lower end of the transverse moving member (3), and a lower end of the connecting column (11) being fixedly connected to a moving seat (12).

5. The automatic drilling and polishing device for aluminum products based on mechanical processing according to claim 1 is characterized in that: The rotary grinding assembly includes a second telescopic rod (16) rotatably mounted inside an electric slide (1302), the second telescopic rod (16) being driven to rotate by a micro motor fixedly mounted inside the electric slide (1302), the telescopic end of the second telescopic rod (16) being fixedly connected to a drill string (19), and a plurality of third telescopic rods (17) being fixedly mounted on the outer side wall of the telescopic end of the second telescopic rod (16), the telescopic end of the third telescopic rod (17) being fixedly connected to a grinding block (18), and the outer surfaces of the grinding blocks (18) being respectively attached with sandpaper of different mesh sizes.

6. The automatic drilling and polishing device for aluminum products based on mechanical processing according to claim 1 is characterized in that: The upper surface of the drill string (19) is provided with a plurality of air holes (21) that are in communication with the interior of the rotating groove (20).

7. The automatic drilling and polishing device for aluminum products based on mechanical processing according to claim 6 is characterized in that: The first centrifugal assembly comprises two connecting plates (25) fixedly connected to the inner top wall and the inner bottom wall of the drill string (19); a rotating shell (26) is rotatably installed between the two connecting plates (25); a vertical first support column (27) is fixedly installed inside the rotating shell (26); a first centrifugal block (28) and a second centrifugal block (29) are rotatably connected to the outer side of the first support column (27) in sequence from top to bottom, and the specifications of the first centrifugal block (28) and the second centrifugal block (29) are different.

8. The automatic drilling and polishing device for aluminum products based on mechanical processing according to claim 7 is characterized in that: The second centrifugal assembly comprises a second support column (32) vertically fixedly mounted in the spacing groove (31), and a third centrifugal block (33) is rotatably sleeved on the outer side of the second support column (32).

9. The automatic drilling and polishing device for aluminum products based on mechanical processing according to claim 1 is characterized in that: The purge member (14) is detachably mounted on the lower end of the corresponding electric slide rod (1302) and is used to clean the inside of the hole.

10. The automatic drilling and polishing device for aluminum products based on mechanical processing according to claim 1, characterized in that: The polishing member (15) is detachably mounted on the lower end of the corresponding electric slide rod (1302) and is used to polish the inside of the hole.

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