A punching and polishing device for processing aluminum products

Abstract

This invention relates to the field of aluminum product manufacturing and processing equipment, and provides a drilling and polishing device for aluminum product processing. The device includes a worktable, a guide channel conveyor plate installed at the top of the worktable's feeding position, a liftable assembly platform above the worktable, and a row of drilling devices arranged at the front of the assembly platform. A hole-sealing and plugging assembly is located below the guide channel conveyor plate, and a lifting assembly for driving the hole-sealing and plugging assembly upwards is located on the side of the assembly. The hole-sealing and plugging assembly includes a component frame cavity opened in the lower part of the guide channel conveyor plate, and multiple vertical columns rotatably installed at equal intervals in the middle of the component frame cavity. A switching disc is fixed to the upper end of each vertical column. In use, by utilizing the multi-specification plugging and lifting columns integrated on the switching disc, this device not only prevents aluminum chips from falling into the bottom hole and avoids scratches on the hole wall, but also provides auxiliary support for the profile, thereby ensuring the continuity and stability of stepped hole processing.

Description

Technical Field

[0001] This invention relates to the field of aluminum product manufacturing and processing equipment, and more specifically, to a drilling and polishing equipment for aluminum product processing. Background Technology

[0002] Aluminum products are a general term for products made from aluminum alloys. Due to their low density, high specific strength, corrosion resistance and easy processing, they are widely used in furniture, construction and industrial components. In the field of all-aluminum furniture, aluminum alloy profiles can replace traditional wood to avoid formaldehyde release and moisture deformation, and have become an important development direction for green home furnishings.

[0003] In the aluminum product processing flow, drilling and polishing are key processes that are closely linked. Drilling is used to create round holes on the profiles for connection, positioning or wiring, while polishing is used to remove burrs, flash and oxide layer generated by drilling and cutting to obtain a smooth surface. For holes that require countersunk connections, a stepped drilling pattern is often used, that is, first drill a small diameter bottom hole, and then use a large diameter tool to expand the hole opening to form a stepped hole structure with a smaller bottom and a larger top, so as to accommodate the embedded assembly of countersunk screws or connectors.

[0004] However, during the aforementioned stepped hole machining process, when using a large-diameter tool to enlarge the hole opening, the continuous ribbon-like aluminum chips generated by cutting are prone to slide down along the hole wall and accumulate inside the small-diameter bottom hole under the action of gravity and the centrifugal force of the tool. Due to the narrow space of the bottom hole, the long strip-shaped aluminum chips are very easy to get stuck between the bottom of the hole and the hole wall. Conventional chip removal methods are difficult to remove them. Even with a negative pressure chip suction device, it is difficult to effectively remove the aluminum chips stuck deep inside. A few processes use workpiece flipping and swinging to assist in chip removal, which not only disrupts the conveying rhythm of the automated production line and interferes with the continuous feeding and positioning of profiles, but also reduces production efficiency and increases process costs. After the workpiece enters the polishing process, the residual aluminum chips are rubbed and scraped against the inner wall of the hole by the polishing tool, causing scratches, pulls and other appearance and precision defects on the hole wall, affecting the product assembly and performance.

[0005] Therefore, this application proposes a drilling and polishing device for aluminum product processing to solve the above problems. Summary of the Invention

[0006] Technical problem to be solved: In view of the problems existing in the prior art, the purpose of this invention is to provide a drilling and polishing equipment for aluminum product processing, which solves the problems in the existing stepped hole processing, where aluminum chips are easily stuck deep in the small diameter bottom hole, and it is difficult to remove them by negative pressure suction. The chip removal is disrupted by flipping or swinging, which reduces efficiency, and the residual aluminum chips scratch the hole wall, affecting the assembly quality.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a drilling and polishing equipment for aluminum product processing, comprising a worktable, a guide groove conveyor plate installed at the top feeding position of the worktable, a liftable assembly table above the worktable and a row of drilling devices installed at the front of the assembly table, a hole sealing and plugging assembly at the lower part of the guide groove conveyor plate, and a lifting assembly for driving the hole sealing and plugging assembly upwards on the side of the hole sealing and plugging assembly; the hole sealing and plugging assembly includes: a component frame cavity opened in the lower part of the guide groove conveyor plate, and an equidistant rotating... Multiple vertical columns are installed in the middle of the component frame cavity. Each vertical column is fixed to a switching disk at its upper end. Multiple plugging and lifting hole columns are equidistantly arranged on the switching disk along the circumference. The upper part of the outer wall of each plugging and lifting hole column is provided with a scraping ring section. The middle of the channel of the guide groove conveying plate is provided with an output hole that communicates with the component frame cavity and allows the plugging and lifting hole columns to pass through. The plugging and lifting hole columns are used to block the bottom hole of the workpiece stepped hole after rising. After the hole is expanded, they are driven to rise again by the lifting component, and the scraping ring section moves up to clean the burrs on the inner wall of the bottom hole.

[0008] In a new embodiment, the accessory frame cavity is provided with an adjustment assembly for switching the plugging hole column. The adjustment assembly includes a worm gear and a connecting rod. The connecting rod is provided with a worm section. The lower part of each vertical column is fixedly connected to a worm gear, and a connecting rod is provided on one side of the worm gear. The worm section on the connecting rod is meshed with the worm gear, and one end of the connecting rod is fixedly connected to the output end of a drive motor fixed to the bottom wall of the accessory frame cavity.

[0009] In a new embodiment, the lifting assembly includes: a hydraulic rod installed on the left and right sides of the front of the bottom wall of the accessory frame cavity; a single frame plate slidably disposed at the front of the accessory frame cavity, and the bottom end of the single frame plate is fixedly connected to the telescopic end of the hydraulic rod; and multiple extension platforms are provided, all installed at the rear end of the single frame plate, with the positions of the multiple extension platforms corresponding one-to-one with the output holes.

[0010] In a new embodiment, a chip suction assembly with an aperture is provided at the center of the top of the assembly table. The chip suction assembly includes: a cylinder, which is installed at the center of the top of the assembly table; a support plate, which is arranged parallel to the bottom of the assembly table, and the telescopic end of the cylinder is fixedly connected to the rear of the top of the support plate; and chip suction rings, which are equidistantly installed at the front end of the support plate, and the chip suction rings are all connected to an external suction device through an internally embedded pipe.

[0011] In a new embodiment, a collar is installed at the top of the chip suction ring, and multiple column grooves are equidistantly arranged in a ring on the inner wall of the collar; a spring contact post is slidably installed in the column groove.

[0012] In a new embodiment, the rear of the assembly table is provided with a stepped polishing assembly for stepped hole polishing. The stepped polishing assembly includes: a locking plate, which is disposed at the rear top of the assembly table; a rotary drive device, which is arranged in a row at the bottom of the locking plate; a stepped hole cleaning shaft is rotatably mounted on the main shaft of the rotary drive device, and a bearing sliding cleaning ring is rotatably mounted on the stepped section of the stepped hole cleaning shaft; and an auxiliary channel plate is provided below the rotary drive device and fixed to the rear top of the worktable.

[0013] In a new embodiment, the switching disk has multiple mounting holes along its circumference, and each mounting hole has a plugging hole column of different diameter slidably disposed therein; rotating the switching disk can make any plugging hole column coaxially aligned with the output hole, which is used to switch plugging hole columns of different diameters.

[0014] In a new embodiment, support rods are installed at the four corners of the top of the workbench. An outer cover is provided on the support rod, and a cylinder is installed on the outer cover. The telescopic end of the cylinder is fixedly connected to the top of the assembly table and is used to drive the assembly table to rise and fall.

[0015] Beneficial effects: Compared with the prior art, the advantages of this invention are as follows: 1. This equipment can quickly adapt to the processing of stepped holes of different diameters by using multiple plugging and lifting pins of different diameters on the switching plate. Only a series of plugging and lifting pins of different sizes need to be prepared to complete the plugging and cleaning, which solves the industry pain points of ribbon aluminum chips falling into small-diameter bottom holes, conventional negative pressure being unable to completely remove chips, and residual aluminum chips interfering with subsequent polishing and causing hole wall scratches in the coaxial hole expansion process; at the same time, the plugging and lifting pins form an auxiliary limit for the hole position of the aluminum profile, which improves the stability and positioning accuracy of the profile during hole expansion when this device is an integrated combined processing machine tool, and ensures the drilling quality.

[0016] 2. This equipment relies on the lifting component to drive the plugging column to rise and seal. While sealing the bottom hole, the scraping ring section pre-scrapes away the burrs on the hole wall. After the hole is enlarged, the cutting debris accumulated at the hole opening step is aligned and concentrated by the suction ring in the hole diameter suction component. Then the plugging column rises again to bring out the hidden burrs and debris inside the bottom hole, which are then adsorbed again by the suction ring, thus thoroughly removing burrs and debris and providing a clean hole wall environment for subsequent polishing.

[0017] 3. Since the object being processed is a stepped hole structure that is larger at the top and smaller at the bottom, the hole contains multiple areas to be processed, including the inner wall of the large hole, the inner wall of the small hole, and the intermediate stepped platform. This device adopts a contour-following stepped polishing structure of the stepped polishing component. It relies on the stepped hole cleaning shaft and the bearing sliding cleaning ring to perform segmented polishing, simultaneously completing the overall polishing of the inner walls of the large and small holes. At the same time, for the annular stepped groove surface, the bearing sliding cleaning ring also acts as a follow-up scraping structure, which can adaptively fit the stepped surface for grinding and cleaning, significantly improving the polishing quality and assembly fit of the stepped hole. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a side view of the present invention.

[0020] Figure 3 This is a schematic diagram of the guide groove conveyor plate position structure of the present invention.

[0021] Figure 4 This is a schematic diagram of the position and structure of the sealing and plugging component and the lifting component of the present invention.

[0022] Figure 5 This is a schematic diagram of the sealing and plugging component structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the adjustment component structure of the present invention.

[0024] Figure 7 This is a schematic diagram of the lifting component structure of the present invention.

[0025] Figure 8 This is a schematic diagram of the switching disk structure of the present invention.

[0026] Figure 9 This is a schematic diagram of the workbench structure of the present invention.

[0027] Figure 10 For the present invention Figure 9 Enlarged view of the structure at point A.

[0028] Figure 11 For the present invention Figure 9 Enlarged view of the structure at point B.

[0029] Figure 12 This is a schematic diagram of the structure of the aperture chip suction assembly of the present invention.

[0030] Figure 13 This is a schematic diagram of the chip suction ring structure of the present invention.

[0031] The attached diagram is labeled as follows: 1. Workbench; 101. Support rod; 102. External cover; 103. Cylinder 2; 2. Guide channel conveyor plate; 3. Assembly table; 4. Sealing and plugging assembly; 41. Accessory frame cavity; 42. Vertical column; 43. Switching disc; 44. Plug-in hole column; 441. Scraping ring section; 45. Output hole; 5. Lifting assembly; 51. Hydraulic rod; 52. Single-frame plate; 53. Extension platform; 6. Adjustment assembly; 61. Worm gear; 62. Connecting rod; 621. Worm section; 7. Aperture chip suction assembly; 71. Cylinder 1; 72. Support plate; 73. Chip suction ring; 731. Collar; 732. Column groove; 733. Spring contact post; 8. Stepped polishing assembly; 81. Locking plate; 82. Rotary drive device; 83. Stepped cleaning shaft; 84. Bearing sliding cleaning ring; 85. Auxiliary trough conveying plate. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] This application provides a drilling and polishing device for aluminum product processing, which solves the problems in existing stepped hole processing, such as aluminum chips easily getting stuck deep in the small-diameter bottom hole, difficulty in removing them with negative pressure suction, and disrupted rhythm and reduced efficiency due to flipping or swinging chip removal. In addition, residual aluminum chips scratch the hole wall and affect assembly quality. During use, with the help of multi-specification plugging and lifting columns integrated on the switching plate, this device can not only prevent aluminum chips from falling into the bottom hole and avoid scratching the hole wall, but also provide auxiliary support for the profile, thereby ensuring the continuity and stability of stepped hole processing.

[0034] The technical solutions in this application are intended to solve the above-mentioned technical problems, and the overall approach is as follows.

[0035] Example 1, please refer to Figures 1-13 This application provides a drilling and polishing device for aluminum product processing, including a worktable 1, a guide channel conveyor plate 2 installed at the top feeding position of the worktable 1, a liftable assembly table 3 above the worktable 1, and a row of drilling devices installed at the front of the assembly table 3. A hole sealing and plugging component 4 is provided at the lower part of the guide channel conveyor plate 2, and a lifting component 5 for driving it to rise is provided on the side of the hole sealing and plugging component 4. The hole sealing and plugging component 4 includes: a component frame cavity 41 opened at the lower part of the guide channel conveyor plate 2, and a component rotatably installed at an equal distance in the middle of the component frame cavity 41. Multiple vertical columns 42 are provided, and a switching disk 43 is fixedly connected to the upper end of each vertical column 42. Multiple plugging hole columns 44 are equidistantly arranged along the circumferential direction on the switching disk 43. A scraping ring section 441 is provided on the upper part of the outer wall of the plugging hole column 44. The middle part of the channel of the guide groove conveying plate 2 is provided with an output hole 45 that communicates with the accessory frame cavity 41 and allows the plugging hole column 44 to pass through. The plugging hole column 44 is used to block the bottom hole of the stepped hole of the workpiece after rising, and after the hole expansion is completed, it is driven to rise again by the lifting component 5, and the scraping ring section 441 moves up to clean the burrs on the inner wall of the bottom hole.

[0036] Furthermore, in this embodiment, please refer to Figure 9 As shown, support rods 101 are installed at the four corners of the top of the workbench 1. An outer cover 102 is provided on the support rods 101. A cylinder 103 is installed on the outer cover 102. The telescopic end of the cylinder 103 is fixedly connected to the top of the assembly table 3 and is used to drive the assembly table 3 to rise and fall.

[0037] As a preferred embodiment of this solution, this device is an integrated combined processing machine tool that focuses on the continuous processing of stepped hole drilling and polishing of aluminum profiles. It is specifically designed to solve the common defects in the coaxial hole enlargement process of stepped holes. Based on the processing characteristics of drilling the bottom hole first and then enlarging the top hole, it effectively improves the industry pain points of easy falling of ribbon aluminum chips into the small-diameter bottom hole during the hole enlargement process, difficulty in completely removing chips with conventional negative pressure, and interference of residual aluminum chips with subsequent polishing processes, causing scratches and damage to the hole wall.

[0038] Specifically, the workflow of this drilling and polishing equipment for aluminum product processing is as follows: First, the aluminum profile workpiece with the pre-machined small-diameter bottom hole is fed into the channel of the guide groove conveyor plate 2 located at the top feeding position of the workbench 1 by the conveying device; the workpiece slides along the channel until the pre-machined small-diameter bottom hole on it is aligned with the output hole 45 in the middle of the guide groove conveyor plate 2. At the same time, the bottom hole is also aligned with the axis of the drilling device arranged in a row at the front of the assembly table 3, which is used as a hole enlarging tool at this time, and the plugging column 44 in the hole sealing and plugging assembly 4. After positioning is completed, the workpiece remains stationary and waits for processing. It should be noted that the drilling device is a spindle unit with replaceable tools, and drill bits or reamers can be installed according to the process requirements. Second, if the small diameter bottom hole diameter of the current workpiece is different from that of the previous batch of workpieces, it is necessary to switch the plugging hole column 44 to select a plugging hole column 44 with a diameter matching the bottom hole. The switching action is completed by the drive motor, connecting rod 62, worm section 621 and worm wheel 61 in the adjustment assembly 6. If the bottom hole diameter of the continuously processed workpieces is the same, this step is not required and the adjustment assembly 6 remains in place. Third, after the positioning and matching plugging hole column 44 is switched into place, the lifting assembly 5 is started. The hydraulic rod 51, the single frame plate 52 and the extension platform 53 work together to drive the plugging hole column 44 to rise and perform the sealing action. At this time, the small diameter bottom hole of the stepped groove has been completely blocked by the plugging hole column 44, and the burrs on the inner wall have been initially removed. Fourth, after the sealing is completed, the assembly table 3 begins to descend to perform the hole reaming process. The drilling devices arranged in rows at the front of the assembly table 3, equipped with large-diameter reaming tools, move downwards accordingly, with the axis of the reaming tools coinciding with the axis of the sealed bottom hole. The tool first contacts the workpiece surface, then performs hole reaming and cutting on the opening of the existing bottom hole, removing material to form a stepped hole with a larger diameter section at the top and a smaller diameter bottom hole at the bottom. During the reaming process, the aluminum alloy material is cut into continuous filamentous or long coiled aluminum chips. Under the centrifugal force of the rotating tool and its own gravity, the aluminum chips slide down along the inner wall of the larger diameter section of the stepped hole. Since the smaller diameter bottom hole has been completely sealed from below by the plugging column 44, the sliding aluminum chips are blocked by the top surface of the plugging column 44 and cannot enter the interior of the smaller diameter bottom hole, thus preventing the aluminum chips from getting stuck in the small hole. After the reaming is completed, the reaming tool rises with the assembly table 3 and detaches from the workpiece. It should be noted that the top surface of the plugging column 44 is flush with or slightly lower than the step surface of the stepped hole during the plugging process, so that the aluminum chips generated by the hole enlargement accumulate above the step surface and do not fall into the small diameter hole. Fifth, in order to thoroughly remove any burrs that may remain on the inner wall of the bottom hole and aluminum chips that fall on the stepped surface of the stepped hole, the following combined action is performed: the hydraulic rod 51 of the lifting component 5 continues to extend upward a certain distance, pushing the plugging hole column 44 to move upward a certain amount. At this time, the scraping ring 441 slides again in the upper area of ​​the inner wall of the bottom hole, further removing any fine burrs that may remain after the first scraping. Since the bottom hole has been completely blocked, the second scraping will not push the chips into the workpiece. At the same time as or immediately after the scraping, the hole diameter chip suction component 7 is activated, and the cylinder 71 pushes the support plate 72 down, so that the chip suction ring 73 is close to the stepped hole opening. The external suction device forms a negative pressure inside the chip suction ring 73 through the embedded pipe, sucking away the aluminum chips that fall on the stepped surface. The suction action lasts for several seconds until the chips accumulated in the enlarged hole area of ​​the stepped hole are removed. Sixth, after the debris is removed and the chip suction ring 73 is reset, the lifting assembly 5 descends, the plugging hole column 44 disengages from the bottom hole and resets, the aluminum profile moves backward, so that the stepped hole reaches below the step polishing assembly 8, and the step polishing assembly 8 starts to work to polish the stepped surface of the stepped hole: the locking plate 81 is fixed at the bottom rear end of the assembly table 3, and the rotary drive device 82 is arranged in a row at the bottom of the locking plate 81; the locking plate 81 descends synchronously with the external lifting device, and drives the stepped hole cleaning shaft 83 to move down accordingly, so that the end face of the bearing sliding cleaning ring 84 contacts the stepped surface of the stepped hole; the rotary drive device 82 starts, and its main shaft drives the stepped hole cleaning shaft 83 to rotate, and the bearing sliding cleaning ring 84 rotates and rubs on the stepped surface to polish. After the polishing continues for a preset time, the rotary drive device 82 stops, the locking plate 81 rises, so that the stepped hole cleaning shaft 83 disengages from the workpiece, and the polishing operation of the stepped hole is completed; Seventh, after all processing steps are completed, each moving component is reset in sequence, and the processed workpiece is output outward along the guide rail 2 or the auxiliary rail 85, leaving the processing station. Thus, a complete work cycle ends.

[0039] In this embodiment, please refer to Figures 5-7 As shown, the accessory frame cavity 41 is provided with an adjustment assembly 6 for switching the plugging hole column 44. The adjustment assembly 6 includes a worm gear 61 and a connecting rod 62. The connecting rod 62 is provided with a worm section 621. The lower part of the vertical column 42 is fixedly connected to the worm gear 61, and a connecting rod 62 is provided on one side of the worm gear 61. The worm section 621 on the connecting rod 62 is meshed with the worm gear 61, and one end of the connecting rod 62 is fixedly connected to the output end of the drive motor fixed to the bottom wall of the accessory frame cavity 41.

[0040] Furthermore, in this embodiment, please refer to Figures 6-8 As shown, the switching disk 43 has multiple mounting holes along its circumference, and each mounting hole has a plugging hole column 44 of different diameters that can be slidably installed in it. Rotating the switching disk 43 can make any plugging hole column 44 coaxially aligned with the output hole 45, which is used to switch between plugging hole columns 44 of different diameters.

[0041] In a preferred embodiment of this solution, the automatic switching of the plugging hole column 44 is achieved through a transmission mechanism consisting of a worm gear 61, a connecting rod 62, and a worm segment 621 thereon. During operation, the drive motor fixed to the bottom wall of the accessory frame cavity 41 is started, and its output end drives the connecting rod 62 to rotate. The worm segment 621 on the connecting rod 62 drives the worm gear 61 that meshes with it to rotate. The worm gear 61 drives the vertical column 42 to rotate, which in turn causes the switching disk 43 fixed to the upper end of the vertical column 42 to rotate accordingly. The switching disk 43 has multiple mounting holes along its circumference, and a plugging hole column 44 is slidably installed in each mounting hole. The diameters of the plugging hole columns 44 are different and correspond to small-diameter bottom holes of different specifications. When the switching disk 43 rotates to a specific angle, the plugging hole column 44 with the diameter matching the bottom hole of the current workpiece is precisely switched to a position coaxially aligned with the output hole 45, and then it can be lifted up and used by the lifting component 5. The adjustment component 6 effectively solves the problem in the prior art that manual shutdown is required to replace the plugging parts or adjust the equipment when dealing with bottom holes of different diameters. It avoids the efficiency loss and operational errors caused by frequent disassembly and assembly. Through the self-locking characteristics of the transmission pair between the worm gear 61 and the worm section 621, the position of the plugging lifting column 44 is stably locked after the switching is completed, without the need for additional braking devices, ensuring the reliability and positional accuracy of subsequent plugging actions. At the same time, multiple plugging lifting columns 44 of different diameters are integrated on the same switching disk 43. The switching process can be completed by simply rotating the drive motor by a fixed angle, which greatly shortens the switching time and realizes rapid mixed-line production of multi-specification products.

[0042] In this embodiment, please refer to Figure 7 and Figure 10 As shown, the lifting assembly 5 includes: a hydraulic rod 51, installed on the left and right sides of the front part of the bottom wall of the accessory frame cavity 41; a single frame plate 52, slidably disposed at the front part of the accessory frame cavity 41, and the bottom end of the single frame plate 52 is fixedly connected to the telescopic end of the hydraulic rod 51; and multiple extension platforms 53, all installed at the rear end of the single frame plate 52, with the positions of the multiple extension platforms 53 corresponding one-to-one with the output holes 45.

[0043] As a preferred embodiment of this solution, a linkage lifting mechanism consisting of a hydraulic rod 51, a single-frame plate 52, and multiple extension platforms 53 is used to synchronously drive multiple plugging hole columns 44. In specific operation, the telescopic end of the hydraulic rod 51 extends upward, pushing the single-frame plate 52 to slide vertically upward along the front of the accessory frame cavity 41. The single-frame plate 52 drives multiple extension platforms 53 fixed at its rear end to rise synchronously. The upper end face of each extension platform 53 contacts the bottom of the corresponding plugging hole column 44 and lifts the plugging hole column 44 upward, so that it passes through the channel above the accessory frame cavity 41 and the output hole 45 on the guide groove conveying plate 2 in sequence, and finally enters the bottom hole of the workpiece to complete the sealing. When the telescopic end of the hydraulic rod 51 retracts, the single-frame plate 52 and the extension platform 53 descend, and the plugging hole column 44 falls back to its original position under its own weight, waiting for the next working cycle. The lifting assembly 5 connects multiple extension platforms 53 into one unit through a single frame plate 52. All sealing actions are driven simultaneously by a hydraulic rod 51, ensuring that the lifting and lowering of the plugging hole column 44 at all workstations are completely synchronized. This eliminates the risk of leakage or over-blocking of individual bottom holes due to inconsistent actions. At the same time, the hydraulic drive has a large output force and smooth movement. Even if multiple holes are lifted at the same time and encounter large resistance such as the additional force generated by burr scraping, the sealing can be reliably completed. It is suitable for continuous operation in mass production.

[0044] In this embodiment, please refer to Figure 9 and Figure 12 As shown, the top center of the assembly platform 3 is provided with a chip suction assembly 7 with an aperture. The chip suction assembly 7 includes: a cylinder 71, which is installed at the top center of the assembly platform 3; a support plate 72, which is arranged parallel to the bottom of the assembly platform 3, and the telescopic end of the cylinder 71 is fixedly connected to the rear of the top of the support plate 72; and chip suction rings 73, which are equidistantly installed at the front end of the support plate 72, and all chip suction rings 73 are connected to an external suction device through an internal pipe.

[0045] In a preferred embodiment of this solution, a lifting and suction structure consisting of cylinder 71, support plate 72, and suction ring 73 enables the active removal of aluminum chips from the stepped surface of the enlarged hole. During operation, the telescopic end of cylinder 71 extends downwards, pushing support plate 72 vertically downwards. This causes the suction ring 73 at the front end of support plate 72 to approach the opening of the stepped hole. Simultaneously, an external suction device activates, creating a negative pressure within the suction ring 73. This pressure draws in the aluminum chips remaining in the enlarged stepped hole (where the bottom hole is blocked by the plugged lifting column 44) through an internal pipe and collects them. After suction is complete, cylinder 71 retracts, and suction ring 73 rises to its original position. The aperture chip suction assembly 7 effectively solves the problem that aluminum chips remain on the step surface after hole enlargement, and fall and scratch the workpiece surface or contaminate the cleaning tank liquid during subsequent conveying or polishing. By performing negative pressure suction immediately after hole enlargement, online removal of chips is achieved, avoiding the incompleteness and low efficiency of manual chip blowing. The chip suction ring 73 and the support plate 72 are linked to lift and lower, without occupying an extra work station. Meanwhile, when the chip-collecting ring 73 descends and approaches the orifice, its annular structure forms a locally closed area around the orifice, which significantly improves the efficiency of negative pressure suction. Especially for light aluminum chips, it can be quickly sucked away before the chips are compressed or stuck together. At the same time, the cantilever layout of the support plate 72, with the rear top connected to the cylinder 71 and the chip-collecting ring 73 installed at the front end, makes the front end of the chip-collecting ring 73 slightly lower than the rear end when it descends, naturally forming a fit with the workpiece surface, further improving the chip-collecting effect.

[0046] Furthermore, in this embodiment, please refer to Figure 13 As shown, a collar 731 is installed at the top of the chip suction ring 73, and multiple grooves 732 are equidistantly arranged in a ring on the inner wall of the collar 731; a spring contact post 733 is slidably installed in the groove 732.

[0047] As a preferred embodiment of this solution, by adding a collar 731 with a spring contact post 733 to the top of the chip suction ring 73, the burrs attached to the scraping ring segment 441 on the plugging hole column 44 during the rising process are mechanically shaken off. In specific operation, after the hole enlargement is completed and the hole suction assembly 7 removes the debris from the stepped surface, the lifting assembly 5 drives the plugging hole column 44 to continue rising. At this time, the scraping ring segment 441 on the upper part of the outer wall of the plugging hole column 44 carries the residual burrs scraped off from the inner wall of the bottom hole and moves upwards. When the scraping ring segment 441 passes the spring contact post 733 inside the collar 731, the burrs are removed by the spring contact post 733. The scraping ring 441 has an annular protrusion structure, which makes instantaneous contact with the spring contact post 733 and forces the spring contact post 733 to compress. After the scraping ring 441 passes the spring contact post 733, the spring contact post 733 springs back to its original position under the action of spring force and makes contact with the next scraping ring 441 or the outer wall of the plugging hole post 44 again. This process is repeated, and the spring contact post 733 produces a continuous pulse-like knocking action on the rising plugging hole post 44, causing the burrs attached to the scraping ring 441 to detach under the action of vibration and fall to the stepped surface of the lower stepped hole, where they are then sucked away by the suction device. This structure effectively solves the problem that the scraping ring 441 carries burrs after cleaning the inner wall of the bottom hole, causing the burrs to be reintroduced into the bottom hole or scattered on the workpiece surface. By dynamically striking the rising plugging hole column 44 with the spring contact column 733, the burrs are forcibly separated and directionally dropped, intercepting and concentrating the burrs in the stepped surface area already covered by the chip suction component, which is convenient for subsequent suction and removal and avoids secondary pollution. Meanwhile, the spring contact post 733 not only plays the role of knocking off chips, but its annular equidistant distribution also makes the plugging hole post 44 subject to symmetrical knocking from multiple angles and points during the rising process, resulting in a more uniform vibration frequency and amplitude, and the chip removal effect is better than single-point knocking.

[0048] In this embodiment, please refer to Figure 9 and Figure 11 As shown, the rear of the assembly table 3 is provided with a stepped polishing assembly 8 for stepped hole polishing. The stepped polishing assembly 8 includes: a locking plate 81, which is set at the rear top of the assembly table 3; a rotary drive device 82, which is arranged in a row at the bottom of the locking plate 81; a stepped hole cleaning shaft 83 is rotatably mounted on the main shaft of the rotary drive device 82, and a bearing sliding cleaning ring 84 is rotatably mounted on the stepped section of the stepped hole cleaning shaft 83; and an auxiliary trough plate 85 is fixed to the rear top of the worktable 1 below the rotary drive device 82.

[0049] In a preferred embodiment of this solution, the polishing of the stepped surface of the stepped hole is achieved through the cooperation of the locking plate 81, the rotary drive device 82, the stepped hole cleaning shaft 83, the bearing sliding cleaning ring 84, and the auxiliary groove conveying plate 85. During operation, after hole enlargement, chip removal, and wall scraping are completed, the locking plate 81 descends, causing the end face of the bearing sliding cleaning ring 84 at the lower end of the stepped hole cleaning shaft 83 to contact the stepped surface of the stepped hole. The rotary drive device 82 is activated, and its main shaft drives the stepped hole cleaning shaft 83 to rotate. The bearing sliding cleaning ring 84 rotates along with the stepped hole cleaning shaft 83, generating relative friction between its end face and the stepped surface, thereby performing fine polishing on the stepped surface. Simultaneously, the upper surface of the auxiliary groove conveying plate 85, fixed at the rear of the top of the worktable 1, contacts the bottom of the workpiece, providing stable support to the tail of the workpiece and preventing vibration or deformation of the long aluminum profile during polishing due to excessive overhang, ensuring uniform polishing pressure. This stepped polishing assembly 8 effectively solves the technical problem in the prior art that the stepped surface of stepped holes is often ignored, or that it is difficult to achieve uniform contact and polishing of the bottom surface of countersunk holes using only general polishing tools. Through the specially designed stepped hole cleaning shaft 83 and the bearing sliding cleaning ring 84 installed on it, the shape of the polishing tool matches the stepped surface of the stepped hole, realizing precise polishing of the stepped surface. This ensures that the screw head is completely in contact with the stepped surface when the countersunk screw is assembled, avoiding assembly defects such as screw skewing, head protrusion, or abnormal locking torque caused by rough or uneven stepped surfaces. Meanwhile, the bearing sliding ring 84 and the stepped cleaning shaft 83 are rotatably connected by a bearing. When the end face of the bearing sliding ring 84 is pressed against the stepped surface and rotates relative to it, the bearing sliding ring 84 itself can generate a small amount of axial wobble and radial float under the support of the bearing, following the micro-concavity and convexity of the stepped surface. This conformal ability allows the bearing sliding ring 84 to adaptively fit the stepped surface. Even if there is a slight tilt or local high point on the workpiece surface, it can maintain uniform surface contact pressure. The surface roughness consistency obtained after polishing is significantly better than that of a rigidly fixed polishing wheel. Secondly, the locking plate 81 is located at the top rear of the assembly table 3. The locking plate 81 is independently controlled up and down by another lifting device installed at the top rear of the outer cover 102, which will not interfere with the up and down movement of the assembly table 3. The two operate independently.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A drilling and polishing equipment for aluminum product processing, comprising a worktable (1), a guide groove conveyor plate (2) installed at the top feeding position of the worktable (1), a liftable assembly table (3) provided above the worktable (1), and a row of drilling devices installed at the front of the assembly table (3), characterized in that: The lower part of the guide groove conveying plate (2) is provided with a sealing and plugging component (4), and the side of the sealing and plugging component (4) is provided with a lifting component (5) for driving it to rise. The sealing and plugging assembly (4) includes: A component frame cavity (41) is opened at the lower part of the guide groove conveying plate (2), and a plurality of vertical columns (42) are equidistantly rotatably installed in the middle of the component frame cavity (41). A switching disk (43) is fixedly connected to the upper end of each vertical column (42). A plurality of plugging hole columns (44) are equidistantly arranged on the switching disk (43) along the circumferential direction. A scraping ring section (441) is provided on the upper part of the outer wall of the plugging hole column (44). The guide channel plate (2) has an output hole (45) in the middle of the channel that is connected to the accessory frame cavity (41) and allows the plugging hole column (44) to pass through. The plugging and lifting column (44) is used to block the bottom hole of the stepped hole of the workpiece after it rises, and after the hole expansion is completed, it is driven to rise again by the lifting component (5), and the scraping ring section (441) moves up to clean the burrs on the inner wall of the bottom hole.

2. The drilling and polishing equipment for aluminum product processing as described in claim 1, characterized in that, The accessory frame cavity (41) is provided with an adjustment component (6) for switching the plugging hole column (44), the adjustment component (6) including a worm gear (61) and a connecting rod (62). The connecting rod (62) is provided with a worm section (621). Each of the vertical columns (42) is fixedly connected to a worm gear (61) at the bottom, and a connecting rod (62) is provided on one side of the worm gear (61). The worm segment (621) on the connecting rod (62) is meshed with the worm wheel (61), and one end of the connecting rod (62) is fixedly connected to the output end of the drive motor fixed to the bottom wall of the accessory frame cavity (41).

3. The drilling and polishing equipment for aluminum product processing as described in claim 1, characterized in that, The lifting component (5) includes: Hydraulic rod (51) is installed on the left and right sides of the bottom wall of the accessory frame cavity (41); A single-frame plate (52) is slidably disposed in front of the accessory frame cavity (41), and the bottom end of the single-frame plate (52) is fixedly connected to the telescopic end of the hydraulic rod (51). Multiple extension platforms (53) are provided and are installed at the rear end of the single frame plate (52). The positions of the multiple extension platforms (53) correspond one-to-one with the output holes (45).

4. The drilling and polishing equipment for aluminum product processing as described in claim 1, characterized in that, The assembly table (3) is provided with a chip suction assembly (7) at the top center, and the chip suction assembly (7) includes: Cylinder 1 (71) is installed at the top center of the assembly table (3); The support plate (72) is arranged parallel to the bottom end of the assembly table (3), and the telescopic end of the cylinder (71) is fixedly connected to the rear top of the support plate (72). The dust collection rings (73) are equidistantly installed at the front end of the support plate (72), and the dust collection rings (73) are all connected to the external suction device through the embedded pipe.

5. The drilling and polishing equipment for aluminum product processing as described in claim 4, characterized in that, The top of the chip suction ring (73) is fitted with a collar (731), and the inner wall of the collar (731) is provided with a plurality of column grooves (732) at equal intervals. A spring contact post (733) is slidably installed in the column groove (732).

6. The drilling and polishing equipment for aluminum product processing as described in claim 1, characterized in that, The rear of the assembly table (3) is provided with a stepped polishing assembly (8) for stepped hole polishing, the stepped polishing assembly (8) comprising: A locking plate (81) is provided at the rear top of the assembly table (3); Rotary drive devices (82) are arranged in a row at the bottom of the locking plate (81); A stepped cleaning shaft (83) is rotatably mounted on the main shaft of the rotary drive device (82), and a bearing sliding cleaning ring (84) is rotatably mounted on the stepped section of the stepped cleaning shaft (83). The rotary drive device (82) is provided with an auxiliary trough plate (85) fixed to the rear of the top of the workbench (1).

7. The drilling and polishing equipment for aluminum product processing as described in claim 1, characterized in that, The switching disk (43) has multiple mounting holes along its circumference, and each mounting hole has a plugging hole column (44) of different diameter slidingly disposed therein. Rotating the switching disk (43) allows any one of the plugging hole columns (44) to be coaxially aligned with the output hole (45), which is used to switch plugging hole columns (44) of different diameters.

8. The drilling and polishing equipment for aluminum product processing as described in claim 1, characterized in that, The workbench (1) has four support rods (101) installed at the top corners. The support rods (101) are provided with an outer cover (102). The outer cover (102) is equipped with a cylinder (103). The telescopic end of the cylinder (103) is fixedly connected to the top of the assembly table (3) and is used to drive the assembly table (3) to rise and fall.

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