Aluminum alloy signboard surface machining equipment

Abstract

The invention relates to the field of signboard combination machining, in particular to aluminum alloy signboard surface machining equipment. Comprising a machining table and a lifting mechanism, the output end of the lifting mechanism is fixedly connected with an assembly table, four hanging lug forming mechanisms are arranged at the lower end of the assembly table, each hanging lug forming mechanism comprises a three-axis moving mechanism, a water jet cutter and a guide plate, and each guide plate is provided with an avoiding hole; a carrying table is fixedly connected to the middle of the machining table, and punching mechanisms are arranged on the two sides of the carrying table and comprise punching rods. And the chamfering machine is arranged at the lower end of the assembly table through a rail conveying mechanism. When the device runs, after the anti-channeling mechanism positions a signboard, the lifting mechanism drives the water jet cutter to cut the outline of the hanging lug and the guide plate bends the hanging lug, the punching rod penetrates through the avoiding hole to punch the hole, after the punching rod and the guide plate are matched and positioned, the anti-channeling mechanism is withdrawn, the track conveying mechanism drives the chamfering machine to chamfer, and finally all the mechanisms are reset to take materials. According to the equipment, integrated machining of hanging lug cutting, bending, punching and chamfering is achieved, transfer of multiple equipment is not needed, and the machining precision and consistency are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of sign assembly processing, specifically to a surface processing equipment for aluminum alloy signs. Background Technology

[0002] In the outdoor advertising field, besides traditional flat aluminum alloy signs, there are also aluminum alloy signs with hanging ears. These signs use a rectangular aluminum alloy plate with rounded ends as the base, with four hanging ears cut into its surface. The three edges of the hanging ears are cut and then bent at 90° by a bending mechanism, making the hanging ears perpendicular to the sign surface. Each hanging ear also has holes. The core function of this sign design is to achieve convenient installation and stable fixation. During installation, the sign can be quickly fixed to walls, columns, or other mounting bases using bolts, rivets, and other connectors through the holes in the hanging ears. Compared to traditional signs without hanging ears, this significantly improves installation efficiency and structural stability after installation, making it widely applicable to outdoor advertising, traffic signs, corporate signage, and other scenarios requiring long-term fixation and high ease of installation.

[0003] Traditional signs are mostly simple plate-like structures without lugs. The corresponding surface processing equipment can only meet basic processing needs such as cutting and grinding, and cannot adapt to the processing flow of signs with lugs. Signs with lugs need to complete the processes of lug cutting, bending and subsequent processing in sequence. The existing processing mode requires multiple machines such as cutting equipment and bending equipment to work together, but this mode has many key drawbacks.

[0004] Besides affecting processing speed, the primary problem is the difficulty in guaranteeing positioning accuracy. When transferring signs between different devices, repositioning is required. The presence of the mounting lugs makes it difficult to standardize the positioning benchmark, and multiple positioning attempts can easily lead to cumulative errors, resulting in deviations in the accuracy of the lug position, bending angle, and hole position. In severe cases, this can even cause the signs to fail to adapt to different installations. Secondly, processing consistency is poor. When positioning manually or with simple tooling, the positioning parameters of signs from different batches, and even within the same batch, can easily fluctuate, leading to significant differences in lug size, perpendicularity, and hole coaxiality, failing to meet the standardization requirements of mass production.

[0005] In addition, the collaborative operation of multiple devices requires a large amount of manual labor for loading and unloading, positioning adjustments, and quality inspection, which not only increases labor costs but also raises the scrap rate due to the uncertainty of manual operation. At the same time, the transfer and readjustment process between devices can easily cause scratches, deformation, and other damage to the surface of the signs, reducing the product qualification rate.

[0006] In summary, existing processing methods cannot simultaneously achieve the processing precision, efficiency, and cost control of aluminum alloy signboards with lugs. Therefore, we need to design a surface processing equipment for aluminum alloy signboards to achieve integrated processing of lug cutting, bending, and other processes, thereby solving a series of problems caused by the collaboration of multiple equipment. Summary of the Invention

[0007] Therefore, it is necessary to provide an aluminum alloy sign surface processing equipment to address the existing technical problems.

[0008] To address the problems in the existing technology, the technical solution adopted by this invention is as follows:

[0009] An aluminum alloy sign surface processing equipment, comprising:

[0010] A lifting mechanism is set on the upper part of the processing table. The output end of the lifting mechanism is fixedly connected to the assembly table. Four ear forming mechanisms are set at the lower end of the assembly table. The ear forming mechanism includes a three-axis moving mechanism set below the assembly table. The output end of the three-axis moving mechanism is fixedly connected to a water jet. A guide plate is set on the side of the three-axis moving mechanism. The lower end of the guide plate is formed with clearance holes.

[0011] A platform is fixed in the middle of the processing table, and two punching mechanisms are set on both sides of the platform. The punching mechanism includes a punch rod set in a horizontal position. When the punch rod moves, it passes through the clearance hole to make a hole for the hanging ear of the sign.

[0012] The processing table is equipped with anti-slip mechanisms on both sides to position the signboards, and a chamfering machine is installed at the bottom of the assembly table via a track conveyor.

[0013] Furthermore, the ear-hanging forming mechanism also includes a positioning platform fixedly connected to the lower end of the assembly platform. A hydraulic motor is fixedly connected to the middle of the positioning platform, and a turntable that is rotatably connected to the positioning platform is provided at the lower end of the hydraulic motor.

[0014] The output end of the hydraulic motor is fixedly connected to the turntable along the same axis, and the frame of the three-axis moving mechanism is fixedly connected to the turntable.

[0015] Furthermore, a pressing cylinder is fixedly connected to the positioning table on the side of the hydraulic motor. The output end of the pressing cylinder is fixedly connected to the upper end of the guide plate. Guide rods that are slidably connected to the positioning table are provided on both sides of the pressing cylinder. The lower end of the guide rods is fixedly connected to the guide plate.

[0016] Furthermore, a stamping cylinder is provided on each side of the platform, and the output end of the stamping cylinder is coaxially fixed to the punch rod.

[0017] Furthermore, a positioning plate is fixedly connected to the output end of the stamping cylinder, and a baffle is provided on the side of the positioning plate away from the platform. Two buffer shafts are fixedly connected to the side of the baffle close to the positioning plate, and springs are sleeved on the outside of the buffer shafts.

[0018] One end of the spring is fixed to the positioning plate, and the other end is fixed to the baffle.

[0019] Furthermore, a retaining plate is provided on the side of the positioning plate away from the baffle, and the retaining plate is fixedly connected to the ends of the two buffer shafts.

[0020] Furthermore, an extrusion roller fixed to the platform is provided above the stamping cylinder, and the hanging lug folds down and abuts against the outer wall of the extrusion roller.

[0021] Furthermore, the anti-slip mechanism includes a support platform located next to the platform and fixed to the processing table. An angular cylinder is arranged in an evenly spaced array on the side of the support platform away from the platform. After the angular cylinder is activated, its output end presses against and positions the part of the sign located on the upper part of the support platform.

[0022] Furthermore, a gasket is fixed to the output end of the corner cylinder, and the lower end of the gasket is formed with anti-slip texture.

[0023] Furthermore, a pneumatic slide is slidably installed on the side of the support platform away from the carrier platform, and the corner cylinder is fixedly connected to the upper end of the pneumatic slide.

[0024] The beneficial effects of this invention compared to the prior art are:

[0025] Firstly, this device uses a positioning table, hydraulic motor, turntable, and three-axis moving mechanism to achieve precise control of the waterjet cutting angle and trajectory, avoiding repeated positioning errors during the transfer of multiple devices. At the same time, the anti-slip mechanism, the coordinated positioning of the corner cylinder and the gasket, the cooperation between the guide plate and the extrusion roller during bending, and the clamping positioning between the guide plate and the baffle during punching, ensure the uniformity of processing benchmarks through multiple links, effectively reducing cumulative errors, ensuring the accuracy of the hanging ear position, bending angle, and hole position, and improving installation adaptability.

[0026] Secondly, this device uses pneumatic components such as stamping cylinders and pressing cylinders to provide stable power, and with the help of guide rods, buffer shafts and other guiding and buffering structures, it ensures the stability of the execution parameters of each process. The cutting, bending, punching and chamfering processes of the hanging ears are all completed on the same equipment, and the processing benchmark is consistent throughout the process. This avoids parameter fluctuations caused by manual or simple tooling positioning, and reduces the differences in hanging ear size, verticality and hole coaxiality between different batches and within the same batch of nameplates, which meets the requirements of standardized production.

[0027] Thirdly, this device achieves integrated processing of multiple processes, eliminating the need for manual transfer between equipment, loading and unloading, and repeated positioning adjustments, thus reducing manpower input. At the same time, the identification plate remains in a stable positioning state throughout the processing, avoiding surface scratches and deformation during transfer. Furthermore, the operation of each mechanism is smooth. For example, the spring buffer of the buffer shaft can prevent rigid impact damage, significantly reducing the scrap rate and balancing processing efficiency and cost control. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of an embodiment;

[0029] Figure 2 This is a side view of an embodiment;

[0030] Figure 3This is a three-dimensional structural diagram of the ear-hanging forming mechanism and the punching mechanism in the embodiment;

[0031] Figure 4 yes Figure 3 Enlarged view of the structure at point A in the middle;

[0032] Figure 5 This is a three-dimensional structural diagram of the ear-hanging forming mechanism and the platform in the embodiment;

[0033] Figure 6 yes Figure 5 Enlarged view of the structure at point B in the middle;

[0034] Figure 7 This is an exploded view of the three-dimensional structure of the guide plate of the punch in the embodiment.

[0035] The numbers on the map are:

[0036] 1. Processing table; 2. Lifting mechanism; 3. Assembly table; 4. Carrier table; 5. Positioning table; 6. Hydraulic motor; 7. Turntable; 8. Three-axis moving mechanism; 9. Water jet; 10. Pressing cylinder; 11. Guide rod; 12. Guide plate; 13. Clearance hole; 14. Stamping cylinder; 15. Punch rod; 16. Baffle; 17. Spring; 18. Buffer shaft; 19. Positioning plate; 20. Clamping plate; 21. Extrusion roller; 22. Anti-slip mechanism; 23. Support table; 24. Corner cylinder; 25. Gasket; 26. Air slide table; 27. Chamfering machine. Detailed Implementation

[0037] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0038] refer to Figures 1 to 7 A surface processing device for aluminum alloy signs, comprising:

[0039] A lifting mechanism 2 is set on the upper end of the processing table 1. The output end of the lifting mechanism 2 is fixedly connected to the assembly table 3. The lower end of the assembly table 3 is equipped with four ear forming mechanisms for processing and forming the ear of the sign. The ear forming mechanism includes a three-axis moving mechanism 8 set below the assembly table 3. The output end of the three-axis moving mechanism 8 is fixedly connected to a water jet 9. When the water jet 9 is started, it cuts the outer contour of the ear through high-pressure water flow. A guide plate 12 for pressing and bending the ear is set on the side of the three-axis moving mechanism 8. The lower end of the guide plate 12 is formed with a clearance hole 13.

[0040] A platform 4 is fixedly connected to the middle of the processing table 1. Two punching mechanisms are respectively set on both sides of the platform 4. The punching mechanism includes a punch rod 15 set in a horizontal state. When the punch rod 15 moves, it passes through the clearance hole 13 to perform hole processing on the hanging ear of the sign.

[0041] The processing table 1 is equipped with anti-slip mechanisms 22 on both sides to position the signboard, and the lower end of the assembly table 3 is equipped with a chamfering machine 27 via a track conveying mechanism.

[0042] When the device is in operation, the operator places the aluminum alloy sign to be processed stably on the upper surface of the platform 4, ensuring that the processing reference of the sign is aligned with the positioning reference of the platform 4. At this time, the anti-shifting mechanisms 22 on both sides of the processing table 1 are activated simultaneously to limit and fix the sign in the horizontal direction, preventing the sign from shifting during subsequent processing and ensuring processing accuracy. Then, the lifting mechanism 2 is activated and drives the assembly platform 3 to move downward until the water jet 9, which is fixed to the output end of the three-axis moving mechanism 8, is moved to the surface of the sign. Then, the water jet 9 is activated, and the high-pressure water jet acts on the surface of the sign. At the same time, the three-axis moving mechanism 8 drives the water jet 9 to move in three-dimensional space according to the preset ear contour trajectory. Through the cutting action of the high-pressure water jet, the contour cutting of the ear is completed on the surface of the sign.

[0043] After the outline of the hanging ear is cut and shaped, the guide plate 12 moves downward until its lower end contacts the cut hanging ear area on the sign. Then, the guide plate 12 continues to move downward and applies downward pressure to the hanging ear, driving it to fold downward along the cut outline. When the hanging ear is folded to a 90° perpendicular position to the main body of the sign, the lifting mechanism 2 stops moving downward. At this time, the guide plate 12 remains in a tight position against the hanging ear. Immediately afterwards, the punching mechanism on both sides of the platform 4 is activated. Its drive component drives the punch rod 15 to move horizontally towards the hanging ear. The punch rod 15 passes through the preset hole of the hanging ear and the clearance hole 13 on the guide plate 12 in sequence, completing the punching process of the hanging ear during the passing process. After the punching is completed, the punch rod 15 remains in the passing state.

[0044] After the ear-hanging holes are punched, the guide plate 12 remains in a tight-fitting state against the ear-hanging holes, and the punch rod 15 remains in a state where it passes through the ear-hanging holes. The two work together to form a stable positioning of the sign. At this time, the anti-slip mechanism 22 on both sides of the processing table 1 retracts and separates from the surface of the sign. Subsequently, the track conveying mechanism at the lower end of the assembly table 3 starts, driving the chamfering machine 27 to move according to the preset processing trajectory of the outer contour of the sign. The processing end of the chamfering machine 27 contacts the outer edge of the upper surface of the sign, and performs chamfering processing on the outer edge corners of the upper surface of the sign to remove the burrs generated by cutting during the forming process and to form a smooth transition. It should be noted that the track conveying mechanism adopts mature existing technology. Its specific structure can adopt conventional linear conveying structures such as motor combined with gear and rack transmission, synchronous belt transmission, etc. It can achieve smooth movement of the chamfering machine 27 according to the outer contour of the sign (a combination of straight lines and curves). Its specific structure will not be described in detail here. After the chamfering is completed, the track conveying mechanism drives the chamfering machine 27 to reset to the initial position, and the punching mechanism drives the punch rod 15 to move away from the hanging ear until the punch rod 15 is completely separated from the hanging ear; then the lifting mechanism 2 drives the assembly platform 3 to move upward and reset, the guide plate 12 separates from the hanging ear, and the operator can take the processed sign from the platform 4 to complete a single processing cycle.

[0045] To enable the three-axis moving mechanism 8 to rotate so that the water jet 9 can cut the arc portion of the lug, the following features are specifically designed:

[0046] like Figure 3 and Figure 5 As shown, the ear-hanging forming mechanism also includes a positioning platform 5 fixedly connected to the lower end of the assembly platform 3. A hydraulic motor 6 is fixedly connected to the middle of the positioning platform 5, and a turntable 7 rotatably connected to the positioning platform 5 is provided at the lower end of the hydraulic motor 6.

[0047] The output end of the hydraulic motor 6 is coaxially fixed to the turntable 7, and the frame of the three-axis moving mechanism 8 is fixed to the turntable 7.

[0048] During the ear loop contour cutting process, when the arc end of the ear loop needs to be processed, the hydraulic motor 6 starts and drives the turntable 7 to rotate around the vertical axis. The three-axis moving mechanism 8, which is fixed to the turntable 7, rotates synchronously with the turntable 7, thereby driving the water jet 9 to adjust to the preset rotation angle. At the same time, the three-axis moving mechanism 8 drives the water jet 9 to move along the arc trajectory. Combined with the rotation driven by the hydraulic motor 6, the water jet 9 can accurately fit the contour of the arc part of the ear loop for cutting, ensuring the forming accuracy of the arc part.

[0049] In order to enable the guide plate 12 to move vertically so that it can bend the cut and shaped lugs, the following features are specifically provided:

[0050] like Figure 5 , Figure 6 and Figure 7 As shown, a pressing cylinder 10 is fixedly connected to the positioning table 5 on the side of the hydraulic motor 6. The output end of the pressing cylinder 10 is fixedly connected to the upper end of the guide plate 12. Guide rods 11 that are slidably connected to the positioning table 5 are provided on both sides of the pressing cylinder 10. The lower end of the guide rods 11 is fixedly connected to the guide plate 12.

[0051] After the lug is cut, the pressure cylinder 10 is activated and pushes the guide plate 12 to slide vertically downwards. The guide rod 11 assists in limiting the movement of the guide plate 12 to prevent it from shifting during movement. After the pressure cylinder 10 pushes the guide plate 12 into contact with the lug, it continues to output power to drive the guide plate 12 downwards, causing the lug to fold along the cutting line until the lug is perpendicular to the main body of the sign. The pressure cylinder 10 maintains pressure to keep the guide plate 12 pressed against the lug, ensuring the verticality is stable after bending.

[0052] To achieve the driving of the strike rod 15, the following features are specifically designed:

[0053] like Figure 3 , Figure 4 and Figure 7 As shown, a stamping cylinder 14 is provided on both sides of the platform 4, and the output end of the stamping cylinder 14 is coaxially fixed to the punch rod 15.

[0054] After the lug is bent and pressed against the guide plate 12, the stamping cylinder 14 starts and drives the punch rod 15 to move horizontally toward the lug. The output power of the stamping cylinder 14 is stable, ensuring that the punch rod 15 passes through the clearance hole 13 of the guide plate 12 with constant pressure and speed and then acts on the preset hole position of the lug to complete the punching process. After the punching is completed, the stamping cylinder 14 drives the punch rod 15 to remain in the inserted state, providing support for the subsequent positioning of the sign. After the chamfering is completed, the stamping cylinder 14 starts in reverse to drive the punch rod 15 to reset.

[0055] To enable the punching mechanism to assist in positioning the side of the lug away from the guide plate 12 during the hole-forming process, the following features are specifically provided:

[0056] like Figure 4 and Figure 7 As shown, a positioning plate 19 is fixedly connected to the output end of the stamping cylinder 14. A baffle 16 is provided on the side of the positioning plate 19 away from the platform 4. Two buffer shafts 18 are fixedly connected on the side of the baffle 16 close to the positioning plate 19. A spring 17 is sleeved on the outside of the buffer shafts 18.

[0057] One end of the spring 17 is fixedly connected to the positioning plate 19, and the other end is fixedly connected to the baffle 16.

[0058] As the stamping cylinder 14 moves the punch rod 15, the baffle 16 first contacts the side of the hanging ear furthest from the guide plate 12. As the stamping cylinder 14 continues to advance, the spring 17 is compressed and generates a reverse elastic force, causing the baffle 16 to apply a stable clamping force to the hanging ear. At this time, the guide plate 12 and the baffle 16 are clamped and positioned from both sides of the hanging ear. Under the positioning action of the two, the punch rod 15 accurately passes through the hanging ear to punch a hole, preventing the hanging ear from shifting during punching. At the same time, the buffering effect of the spring 17 can prevent the baffle 16 from causing rigid impact to the hanging ear and resulting in damage.

[0059] To prevent the buffer shaft 18 from separating from the positioning plate 19 due to excessive displacement before the baffle 16 contacts the lug, the following features are specifically provided:

[0060] like Figure 4 As shown, a retaining plate 20 is provided on the side of the positioning plate 19 away from the baffle 16, and the retaining plate 20 is fixedly connected to the ends of the two buffer shafts 18.

[0061] When the device is not in operation or when the buffer shaft 18 is reset, the buffer shaft 18 moves away from the positioning plate 19 under the elastic force of the spring 17. When the buffer shaft 18 moves to its maximum stroke, the clamping plate 20 abuts against the side of the positioning plate 19 away from the baffle 16, restricting the buffer shaft 18 from moving further, thereby preventing the buffer shaft 18 from dislodging from the positioning plate 19 due to excessive displacement. The clamping plate 20 is fixedly connected to the ends of the two buffer shafts 18 to ensure synchronous limiting of the two buffer shafts 18 and to ensure the overall structural stability of the buffer mechanism.

[0062] To assist in positioning the hook that has been flipped by the guide plate 12, the following features are specifically provided:

[0063] Above the stamping cylinder 14 is a pressing roller 21 fixedly connected to the platform 4. After the lug is folded downwards, it abuts against the outer wall of the pressing roller 21. As the guide plate 12 pushes the lug downwards, the side of the lug away from the guide plate 12 gradually contacts the outer wall of the pressing roller 21. As the lug continues to fold, the pressing roller 21 generates a reverse supporting force on the lug, which cooperates with the pressure of the guide plate 12 to limit the folding trajectory of the lug. When the lug is folded to a 90° vertical position, the pressing roller 21 and the guide plate 12 clamp it from both sides of the lug, further ensuring the verticality of the lug after bending and preventing the lug from springing back due to elastic deformation.

[0064] To ensure the signage is positioned correctly and to prevent it from shifting during surface processing, the following features are specifically included:

[0065] like Figure 3 , Figure 4 and Figure 5As shown, the anti-slip mechanism 22 includes a support platform 23 located on the side of the platform 4 and fixedly connected to the processing table 1. Angle cylinders 24 are arranged in an evenly spaced array on the side of the support platform 23 away from the platform 4. After the angle cylinders 24 are started, their output ends press and position the part of the sign located on the upper end of the support platform 23.

[0066] After the operator places the sign on the carrier 4, the corner cylinder 24 on the support 23 is activated. Its output end first rotates to a direction perpendicular to the edge of the sign, and then extends towards the sign until its output end is tightly pressed against the part of the sign located above the support 23. Multiple corner cylinders 24 are evenly distributed in an array to ensure that the pressing force on the sign is evenly distributed. Together with the anti-slip mechanism 22 on both sides of the processing table 1, they form a cooperative positioning to restrict the horizontal movement of the sign from multiple directions, providing a stable positioning reference for processes such as cutting and bending.

[0067] To increase the contact area between the output end of the corner cylinder 24 and the sign, the following features are specifically designed:

[0068] like Figure 5 and Figure 6 As shown, a gasket 25 is fixedly connected to the output end of the corner cylinder 24, and the lower end of the gasket 25 has anti-slip texture. When the corner cylinder 24 clamps and positions the sign, the gasket 25 fixed to the output end contacts the surface of the sign. The gasket 25 increases the contact area between the output end of the corner cylinder 24 and the sign, allowing the clamping force to be transmitted more evenly to the surface of the sign, avoiding excessive local pressure that could damage the surface of the sign. The anti-slip texture at the lower end of the gasket 25 increases the friction between it and the sign, further preventing the sign from sliding relative to the sign during processing due to force, thus improving the reliability of positioning.

[0069] In order to move the corner cylinder 24 closer to and away from the support table 23, and to ensure that it avoids the movement trajectory of the chamfering machine 27, the following features are also provided:

[0070] like Figure 5 As shown, a pneumatic slide 26 is slidably provided on the side of the support platform 23 away from the carrier platform 4, and the corner cylinder 24 is fixedly connected to the upper end of the pneumatic slide 26.

[0071] During the initial positioning, cutting, bending, and punching processes of the signboard, the pneumatic slide table 26 moves the corner cylinder 24 closer to the platform 4, keeping the corner cylinder 24 firmly positioned against the signboard. Before entering the chamfering process, the pneumatic slide table 26 starts and moves the corner cylinder 24 away from the platform 4 until the corner cylinder 24 is completely out of the preset movement trajectory range of the chamfering machine 27, avoiding interference with the moving chamfering machine 27. After the chamfering is completed, the pneumatic slide table 26 resets the corner cylinder 24, preparing it for the next processing step.

[0072] The detailed working principle of this device is as follows:

[0073] The operator first places the aluminum alloy sign to be processed on the upper surface of the platform 4, aligning the processing reference of the sign with the positioning reference of the platform 4. At this time, the air slide 26 at the support 23 drives the corner cylinder 24 to move towards the platform 4. After the corner cylinder 24 is activated, it rotates and pushes the shim 25 to press against the edge of the sign. At the same time, the actuators of the anti-slip mechanisms 22 on both sides of the processing table 1 extend and press against the surface of the sign. Through multi-directional coordination, the sign is stably positioned in the horizontal direction.

[0074] Subsequently, the lifting mechanism 2 drives the assembly platform 3 to move downwards until the water jet 9 is close to the surface of the sign. After the water jet 9 is activated, the hydraulic motor 6 drives the turntable 7 to rotate and adjust the angle of the water jet 9. At the same time, the three-axis moving mechanism 8 drives the water jet 9 to move along the preset trajectory to precisely cut the outline of the hanging ear. After the hanging ear is cut, the pressing cylinder 10 pushes the guide plate 12 downwards. The guide rod 11 provides guidance for the guide plate 12 to ensure smooth movement. After the guide plate 12 contacts the hanging ear, it continues to apply pressure, causing the hanging ear to fold along the cutting line. During the folding process, the hanging ear abuts against the extrusion roller 21, and the guide plate 12 works together to ensure that the hanging ear is folded to a 90° vertical state and remains firmly pressed.

[0075] Immediately afterwards, the stamping cylinder 14 is started, which drives the positioning plate 19, the baffle 16 and the punch rod 15 to move toward the hanging ear. The baffle 16 first contacts the hanging ear and cooperates with the guide plate 12 to clamp the hanging ear. The punch rod 15 passes through the clearance hole 13 to complete the punching and then remains in the through state.

[0076] Subsequently, the anti-slip mechanism 22 retracts, the pneumatic slide 26 drives the corner cylinder 24 away from the platform 4 to avoid the trajectory, and the track conveying mechanism drives the chamfering machine 27 to move along the outer contour of the sign to chamfer and deburr the edges. After chamfering is completed, the chamfering machine 27 resets, the stamping cylinder 14 drives the punch rod 15 to reset, the lifting mechanism 2 drives the assembly platform 3 and guide plate 12 to reset, the pneumatic slide 26 drives the corner cylinder 24 to reset, and the operator removes the processed sign, completing one processing cycle. The entire process achieves integrated cutting, bending, punching, and chamfering through the coordinated operation of various mechanisms, eliminating the need for inter-equipment transfer.

[0077] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A surface processing device for aluminum alloy signs, characterized in that, include: A lifting mechanism (2) is set on the upper end of the processing table (1). The output end of the lifting mechanism (2) is fixedly connected to the assembly table (3). Four ear forming mechanisms are set at the lower end of the assembly table (3). The ear forming mechanism includes a three-axis moving mechanism (8) set below the assembly table (3). A water jet (9) is fixedly connected to the output end of the three-axis moving mechanism (8). A guide plate (12) is set on the side of the three-axis moving mechanism (8). A clearance hole (13) is formed at the lower end of the guide plate (12). The processing table (1) is fixedly connected to the platform (4) in the middle. Two punching mechanisms are respectively set on both sides of the platform (4). The punching mechanism includes a punch rod (15) set in a horizontal state. When the punch rod (15) moves, it passes through the clearance hole (13) to perform hole processing on the hanging ear of the sign. The processing table (1) is equipped with anti-slip mechanisms (22) for positioning the signboard on both sides, and the lower end of the assembly table (3) is equipped with a chamfering machine (27) via a track conveying mechanism.

2. The surface processing equipment for aluminum alloy signs according to claim 1, characterized in that, The ear-hanging forming mechanism also includes a positioning platform (5) fixedly connected to the lower end of the assembly platform (3). A hydraulic motor (6) is fixedly connected to the middle of the positioning platform (5). A turntable (7) is provided at the lower end of the hydraulic motor (6) and is rotatably connected to the positioning platform (5). The output end of the hydraulic motor (6) is fixedly connected to the turntable (7) along the same axis, and the frame of the three-axis moving mechanism (8) is fixedly connected to the turntable (7).

3. The surface processing equipment for aluminum alloy signs according to claim 2, characterized in that, A pressing cylinder (10) is fixedly connected to the positioning table (5) on the side of the hydraulic motor (6). The output end of the pressing cylinder (10) is fixedly connected to the upper end of the guide plate (12). Guide rods (11) are slidably connected to the positioning table (5) on both sides of the pressing cylinder (10). The lower end of the guide rods (11) is fixedly connected to the guide plate (12).

4. The surface processing equipment for aluminum alloy signs according to claim 3, characterized in that, A stamping cylinder (14) is provided on both sides of the platform (4), and the output end of the stamping cylinder (14) is coaxially fixed to the punch rod (15).

5. The surface processing equipment for aluminum alloy signs according to claim 4, characterized in that, A positioning plate (19) is fixedly connected to the output end of the stamping cylinder (14). A baffle (16) is provided on the side of the positioning plate (19) away from the platform (4). Two buffer shafts (18) are fixedly connected on the side of the baffle (16) close to the positioning plate (19). A spring (17) is sleeved on the outside of the buffer shaft (18). One end of the spring (17) is fixed to the positioning plate (19), and the other end is fixed to the baffle (16).

6. The surface processing equipment for aluminum alloy signs according to claim 5, characterized in that, A clamping plate (20) is provided on the side of the positioning plate (19) away from the baffle (16), and the clamping plate (20) is fixedly connected to the ends of the two buffer shafts (18).

7. The surface processing equipment for aluminum alloy signs according to claim 4, characterized in that, Above the stamping cylinder (14) is a pressing roller (21) that is fixed to the platform (4). The hanging ear is folded down and abuts against the outer wall of the pressing roller (21).

8. The surface processing equipment for aluminum alloy signs according to claim 1, characterized in that, The anti-slip mechanism (22) includes a support platform (23) located on the side of the platform (4) and fixed to the processing table (1). Angle cylinders (24) are arranged in an evenly spaced array on the side of the support platform (23) away from the platform (4). After the angle cylinder (24) is started, its output end presses against and positions the part of the sign located on the upper end of the support platform (23).

9. The surface processing equipment for aluminum alloy signs according to claim 8, characterized in that, A gasket (25) is fixed to the output end of the corner cylinder (24), and the lower end of the gasket (25) is formed with anti-slip texture.

10. The surface processing equipment for aluminum alloy signs according to claim 8, characterized in that, A pneumatic slide (26) is slidably provided on the side of the support platform (23) away from the carrier platform (4), and the corner cylinder (24) is fixedly connected to the upper end of the pneumatic slide (26).

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