Automatic stacking and throwing device for mobile phone metal middle frame

Abstract

The utility model relates to mobile phone metal middle frame polishing technical field especially, a kind of automatic stack polishing device for mobile phone metal middle frame is provided.The utility model provides the automatic stack polishing device for mobile phone metal middle frame including control cabinet, rack, stacking robot, feeding robot and polishing machine for the low production efficiency, low yield, high labor intensity and high cost of existing polishing device, control cabinet centralized control each component.Jig on rack holds incoming material, bottom plate is used for stacking;Stacking robot is stacked with baffle, cover plate on bottom plate by stacking assembly with first suction head, second suction head, feeding robot clamps the mobile phone metal middle frame that has been stacked moves and sends to polishing machine polishing.The device realizes the automation production of mobile phone metal polishing, improves stacking precision, production efficiency and yield, reduces artificial cost and security risk, applicable to batch production.

Description

Technical Field

[0001] This utility model relates to the field of polishing technology for metal frames of mobile phones, and in particular to an automatic stacking polishing device for metal frames of mobile phones. Background Technology

[0002] Currently, smartphones, tablets, and other smart devices on the market primarily use two types of mid-frame materials: plastic and metal. Compared to plastic mid-frames, metal mid-frames are more rigid, providing more reliable protection and support for internal components. Furthermore, metal mid-frames have excellent thermal conductivity, allowing heat generated during phone operation to be quickly dissipated, preventing overheating from prolonged use and thus ensuring stable performance and extending the phone's lifespan.

[0003] Polishing is a crucial step in the manufacturing process of mobile phone frames. Polishing the frame removes imperfections such as tool marks, burrs, and scratches from the processed surface through fine grinding, improving surface smoothness and enhancing aesthetics and texture. For example, it can create a high-gloss mirror effect for visual contrast. Simultaneously, it smooths out rough areas, making the grip more comfortable and reducing discomfort during use. Furthermore, it provides a smooth base for subsequent processes such as anodizing and coating, ensuring a uniform and durable coating, and making the metal surface denser, indirectly improving corrosion resistance and wear resistance, and extending the lifespan of the appearance.

[0004] Currently used mobile phone frame polishing devices (five-axis polishing machines and manual polishing) have many drawbacks. They are inefficient, with manual loading and unloading and operation taking 2-3 minutes per cycle, 1.2-1.8 times longer than automated equipment. Furthermore, workers' operating speed decreases by about 30% after 4 hours of continuous work, impacting progress. Product quality is also poor, with surface roughness standard deviations reaching 0.03μm due to worker variations, resulting in a pass rate of only 85%. The scrap rate due to human error is approximately 5% per 1000 pieces. Regarding labor intensity and safety, 70% of workers with over 3 years of experience suffer from occupational diseases, with an annual workplace injury rate of 5 per 100 workers, and a 30% higher probability of respiratory illnesses. In terms of overall cost, average monthly wages are projected to increase by 40% from 2020 to 2025, requiring 50% more workers than automated systems for the same production scale, with monthly management costs of approximately 20,000 yuan and annual rework and scrap costs of 500,000-800,000 yuan. Therefore, a new automated stacking and polishing device for mobile phone metal frames is urgently needed. Utility Model Content

[0005] Therefore, it is necessary to address the above-mentioned shortcomings by providing an automatic stacking and polishing device for the metal frame of a mobile phone, comprising:

[0006] Control cabinet;

[0007] A stand, on which a fixture and a base plate are movably provided, the fixture being used to hold incoming metal frames for mobile phones, and the base plate being used to stack the metal frames for mobile phones;

[0008] A stacking robot is located next to the platform. The top of the stacking robot is rotatably equipped with a stacking assembly, which includes: a plurality of first suction heads for picking up products, and a number of second suction heads equal to the number of first suction heads for picking up partitions or covers. The stacking robot is used to stack the mobile phone metal frame and the partitions or covers sequentially on the base plate. The base plate, partitions, and covers are all provided with protrusions that match the inner edge of the mobile phone metal frame. The protrusions are used to prevent the mobile phone metal frame from shifting horizontally and to make the mobile phone metal frame stack vertically.

[0009] A loading robot is located next to the platform, and the top of the loading robot is rotatably equipped with a gripper for gripping stacked mobile phone metal frames.

[0010] A polishing machine is located next to the feeding robot and is used to polish the stacked metal frames of mobile phones.

[0011] The control cabinet is electrically connected to the stacking robot, the loading robot, and the polishing machine.

[0012] Preferably, the fixture platform is provided on the frame, the fixture platform is provided with a plurality of first positioning posts, and the lower surface of the fixture is provided with a plurality of first positioning grooves that match the first positioning posts.

[0013] Preferably, the stand is provided with a positioning platform, the base plate is provided on the positioning platform, the positioning platform is provided with a photoelectric sensor for calibration and positioning, and the photoelectric sensor is electrically connected to the control cabinet.

[0014] Preferably, the frame is provided with a loading platform, the loading platform is provided with a second positioning post and a magnet, and the base plate is provided with a second positioning groove that matches the second positioning post and an iron block that corresponds to the magnet.

[0015] Preferably, the stand is recessed with a first cleaning tank for cleaning the metal frame of a mobile phone placed on the fixture, and the stacking assembly further includes a third suction head for picking up the fixture.

[0016] Preferably, the stacking robot and the loading robot are ABB-IRB1600-10-1.45 six-axis robotic arms.

[0017] Preferably, the stacking assembly includes a base plate connected to the top of the stacking robot. A plurality of first connecting plates are radially and spaced apart on the base plate. A first suction head and a second suction head are alternately disposed on one end of the plurality of first connecting plates away from the base plate. A second connecting plate longer than the first connecting plates is also disposed on the base plate. A third suction head is disposed on one end of the second connecting plate away from the second connecting plate.

[0018] Preferably, the polishing machine includes a housing, a polishing wheel disposed inside the housing, a servo motor drivenly connected to the polishing wheel, a spray pipe disposed beside the polishing wheel, a delivery pump connected to the spray pipe, a filter for collecting and filtering polishing liquid, an electrical control box, and a three-color warning light disposed on the top of the housing. The electrical control box is electrically connected to the servo motor, the delivery pump, the filter, and the three-color warning light. The electrical control box is also electrically connected to the control cabinet. A loading window is provided on the side of the housing near the loading robot, and an observation window is also provided on the housing.

[0019] Preferably, it further includes a second cleaning tank, which is located between the loading robot and the polishing machine.

[0020] The aforementioned automated stacking and polishing device for mobile phone metal frames achieves fully automated operation through a control cabinet that coordinates stacking robots, feeding robots, and polishing machines. This solves the problems of low production efficiency, poor yield, high labor intensity, and high cost associated with manual polishing and traditional equipment in existing technologies. The stacking robot utilizes stacking components with first and second suction heads, along with protrusions on the base plate, partitions, and cover plate that match the inner edge of the mobile phone metal frame. This precisely limits the horizontal displacement of the frame, achieving stable vertical stacking and preventing over- or under-polishing caused by stacking misalignment. The entire process requires no manual intervention, reducing human error and handling damage, thus improving yield. Automated continuous production reduces the time spent on each operation, increasing production efficiency. Reducing the need for a large workforce lowers labor costs, management costs, and rework / scrap costs, while also reducing occupational disease and work injury risks, making it suitable for mass production. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an automatic stacking and polishing device for a mobile phone metal frame in one embodiment of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure of the automatic stacking and polishing device for the metal frame of a mobile phone in the embodiment shown;

[0023] Figure 3 for Figure 2 The schematic diagram of the fixture platform on the stand shown in the embodiment is as follows;

[0024] Figure 4 for Figure 2 The diagram shows the structure of the positioning platform on the stand in the embodiment shown.

[0025] Figure 5 for Figure 2 The diagram shows the structure of the loading platform on the frame in the embodiment shown.

[0026] Figure 6 This is a schematic diagram of the structure of the base plate of the automatic stacking and polishing device for the metal frame of a mobile phone in one embodiment of the present invention;

[0027] Figure 7 for Figure 2 A schematic diagram of the structure of the polishing machine for the automatic stacking and polishing device for the metal frame of a mobile phone in the embodiment shown;

[0028] Figure 8 for Figure 2 A schematic diagram of the stacking robot of the automatic stacking and throwing device for the metal frame of a mobile phone in the embodiment shown;

[0029] Figure 9 for Figure 8 A schematic diagram of the stacking assembly located on top of the stacking robot in the embodiment shown.

[0030] Explanation of reference numerals in the attached drawings: 100-Control cabinet, 200-Frame, 210-Jig, 210a-First positioning slot, 220-Base plate, 220a-Second positioning slot, 230-Jig platform, 231-First positioning post, 240-Positioning platform, 241-Photoelectric sensor, 250-Loading platform, 251-Second positioning post, 252-Magnet, 260-First cleaning tank, 300-Stacking robot, 310-Stacking assembly, 311-First suction head, 312-Second suction head Head, 3121-partition, 3122-cover plate, 313-third suction head, 314-substrate, 3141-first connecting plate, 3142-second connecting plate, 400-feeding robot, 500-polishing machine, 510-machine housing, 510a-feeding window, 510b-observation window, 520-polishing wheel, 530-servo motor, 540-spray pipe, 550-transfer pump, 560-filter, 570-three-color warning light, 580-electrical control box, 600-second cleaning tank. Detailed Implementation

[0031] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0032] This utility model discloses an automatic stacking and polishing device for the metal frame of a mobile phone, such as... Figures 1-9As shown, the device includes: a control cabinet 100, a frame 200, a stacking robot 300, a loading robot 400, and a polishing machine 500. The control cabinet 100 is electrically connected to the stacking robot 300, the loading robot 400, and the polishing machine 500, and centrally controls the stacking robot 300, the loading robot 400, and the polishing machine 500. The frame 200 is movably equipped with a fixture 210 and a base plate 220. The fixture 210 is used to hold the metal frame of the mobile phone. The metal frame of the mobile phone can be transferred from the previous process to the frame 200 of this device along with the fixture 210, or it can be transferred from the previous process to the fixture 210 of the frame 200. The base plate 220 is used to place the bottom of the polishing unit formed by stacking the metal frame of the mobile phone, the partition 3121, or the cover plate 3122 in sequence when stacking the mobile phone frame. The stacking robot 300 is located next to the stand 200 and is used to stack the mobile phone metal frame, partition 3121, and cover plate 3122 on the base plate 220 in sequence to form a polishing unit. In order to prevent the mobile phone metal frame from shifting horizontally and to stack the mobile phone metal frame vertically, the base plate 220, partition 3121, and cover plate 3122 are all provided with protrusions that match the inner edge of the mobile phone metal frame. The stacking robot 300 has a stacking assembly 310 rotatably mounted on its top. The stacking assembly 310 includes: a plurality of first suction heads 311 for picking up the metal frame of a mobile phone, and a number of second suction heads 312 equal to the number of first suction heads 311 for picking up partitions 3121 or cover plates 3122. The stacking assembly 310 rotates to sequentially use the first suction heads 311 to pick up or put down the metal frame of the mobile phone, and use the second suction heads 312 to pick up or put down the partitions 3121 or cover plates 3122 to achieve stacking. In this embodiment, the first suction heads 311 are equipped with electromagnets, which pick up the metal frame of the mobile phone by magnetic force. The second suction heads 312 are equipped with vacuum suction cups, which pick up the partitions 3121 or cover plates 3122 by vacuuming. The loading robot 400 is located next to the platform 200, and its top is rotatably equipped with a gripper for gripping the stacked metal frame of the mobile phone (i.e., the aforementioned polishing unit). The gripper grips the polishing unit and transfers it to the polishing machine 500 for polishing. The polishing machine 500 is located next to the loading robot 400 and is used to polish the stacked metal frames of mobile phones. The polishing machine 500 has a placement position for fixing the polishing unit, and the loading robot 400 can also be used to continuously grab the polishing unit for polishing.

[0033] The workflow of the automatic stacking and polishing device for mobile phone metal frames provided by this utility model is as follows: Step 1, confirm that the device status and parameters are normal, and prohibit non-technical personnel from adjusting the equipment or modifying the parameters; Step 2, manually or on the production line, transport the fixture 210 containing the mobile phone metal frame to the platform 200 or transport the mobile phone metal frame to the fixture 210 on the platform 200; Step 3, the stacking robot sequentially picks up the mobile phone metal frame, partition 3121, and cover plate 3122 from the fixture 210; Step 4, the stacking robot 300 stacks the mobile phone metal frame and partition 3121 sequentially to the bottom. On plate 220, a cover plate 3122 is placed on top to form a polishing unit; Step 5, the loading robot 400 transfers the polishing unit into the polishing machine 500; Step 6, the polishing machine 500 polishes the metal frame of the mobile phone; Step 7, after polishing, the loading robot 400 moves the polishing unit from the polishing machine 500 to the stand 200; Step 8, the stacking robot 300 sequentially picks up the cover plate 3122, the metal frame of the mobile phone, and the partition plate 3121 to release the stacking state; Step 9, the metal frame of the mobile phone is cleaned; Step 10, the metal frame of the mobile phone is transferred to the next process.

[0034] The automatic stacking and polishing device for mobile phone metal frames provided by this utility model uses raised structures on the base plate 220, partition plate 3121, and cover plate 3122 that match the inner edge of the mobile phone metal frame to precisely limit the horizontal displacement of the mobile phone metal frame, ensuring that the mobile phone metal frame is accurately aligned and stacked in the vertical direction. This significantly improves the stacking accuracy and provides a solid guarantee for the stability of subsequent polishing processes, effectively avoiding the problem of local over-polishing or under-polishing caused by stacking misalignment. Secondly, the entire process is fully automated by the control cabinet 100 coordinating the stacking robot 300, the loading robot 400, and the polishing machine 500. From stacking and transfer to polishing, no manual intervention is required, which not only reduces labor costs but also avoids fatigue errors that may occur during manual operation and the three types of damage to the frame during handling, thus improving the overall product yield. Furthermore, the stacking robot 300 features a multi-head design. The device can simultaneously grip a polishing unit's metal frame, partition 3121, and cover plate 3122, reducing the time required for each stacking operation. The seamless integration of the loading robot 400 and the polishing machine 500 enables continuous production, significantly improving overall production efficiency and making it ideal for mass production scenarios. Simultaneously, the partition 3121 and cover plate 3122 isolate adjacent frames, preventing direct contact and friction that could cause surface scratches. The robot's suction head and grippers employ a non-rigid contact method, further reducing damage to the frame surface and effectively ensuring product appearance precision. Furthermore, the device boasts strong compatibility; by replacing the corresponding base plate 220, partition 3121, and cover plate 3122, it can be adapted to different models of smartphones, tablets, and other smart devices with metal frames without requiring significant adjustments to the main body of the device. Its high flexibility effectively meets the needs of factories producing multiple models in batches.

[0035] In one embodiment, such as Figures 1-3 As shown, a fixture platform 230 is provided on the frame 200. The fixture platform 230 has several protruding first positioning posts 231. Correspondingly, the lower surface of the fixture 210 has several first positioning grooves 210a that match the first positioning posts 231. Based on this, when the fixture 210 is placed on the fixture platform 230, the first positioning posts 231 of the fixture platform 230 match the first positioning grooves 210a on the lower surface of the fixture 210, which can firmly restrict the horizontal displacement of the fixture 210 on the frame 200, keeping the fixture 210 always in a preset fixed position. This avoids positional shifts caused by equipment vibration, material placement impact, etc., thereby ensuring... The first suction head 311 of the stacking robot 300 accurately picks up the metal frame of the mobile phone, reducing problems such as missed suction and suction position deviation, and improving the stability of the stacking process. At the same time, the fixture 210 can be "placed and accurately" without repeated calibration of the relative position of the stacking robot 300 and the fixture, reducing the difficulty of robot debugging, shortening production preparation time, and improving changeover efficiency. Moreover, it can avoid the suction head from scratching or squeezing the metal frame of the mobile phone during suction due to fixture deviation, reducing secondary damage, ensuring the surface quality of the metal frame of the mobile phone, and strengthening the synergy between the fixture and the stacking robot 300, avoiding automation process blockage and improving overall automation efficiency.

[0036] In one embodiment, such as Figure 1 , Figure 2 , Figure 4As shown, a positioning platform 240 is provided on the stand 200, and a base plate 220 is disposed on the positioning platform 240. A photoelectric sensor 241 for calibration and positioning is provided on the positioning platform 240, and the photoelectric sensor 241 is electrically connected to the control cabinet 100. In this embodiment, the positioning platform 240 is located next to the fixture 210, which can shorten the transfer path of the mobile phone's metal frame. By setting the photoelectric sensor 241 on the positioning platform 240 where the base plate 220 is placed, the actual position of the base plate 220 is detected in real time using photoelectric sensing technology, and the position information is fed back to the control cabinet 100. The control cabinet 100 then calibrates the motion parameters of the stacking robot 300 based on the feedback data, ensuring that the relative positions of the base plate 220 and the stacking robot 300 are always accurately matched. The photoelectric sensor 241 can also dynamically monitor the position of the base plate 220, promptly detecting any misalignment of the base plate 220 caused by equipment vibration, installation errors, etc. The control cabinet 100 then adjusts the stacking path of the stacking robot 300 in real time, preventing misalignment of the mobile phone metal frame due to inaccurate positioning of the base plate 220, further improving stacking accuracy and providing a more stable foundation for subsequent polishing processes. Secondly, compared to traditional mechanical positioning methods, the real-time calibration function of the photoelectric sensor 241 makes the positioning of the base plate 220 more flexible. Even if slight displacement occurs in the base plate 220 during long-term production, it can be corrected promptly. This system ensures consistent positioning of the stacking robot 300 when placing the phone's metal frame, partitions 3121, and cover plate 3122, reducing production interruptions caused by positioning issues and improving continuous equipment operation efficiency. Furthermore, precise positioning guarantees consistent placement of the phone's metal frame by the stacking robot 300, preventing collisions and friction between components due to base plate misalignment, reducing the risk of scratches on the phone's metal frame surface, and improving product quality. Simultaneously, this automated calibration method reduces the need for manual inspection and adjustment of the base plate 220 position, lowering labor costs and operational errors, making the entire production process more automated and intelligent, and adapting to the needs of large-scale mass production. In addition, the photoelectric sensor 241 can monitor the number of stacked phone metal frames and partitions 3121 in real time, and can promptly notify the control cabinet 100 to stop stacking when a preset number or height is reached. This eliminates the need for frequent parameter changes when stacking phone metal frames of different heights and sizes, simplifying the production process.

[0037] In one embodiment, such as Figure 1 , Figure 2 , Figure 5As shown, the frame 200 is equipped with a loading platform 250, on which a second positioning post 251 and a magnet 252 are mounted. The base plate 220 is equipped with a second positioning groove 220a that matches the second positioning post 251 and an iron block that corresponds to the magnet 252. By mechanically engaging the second positioning post 251 on the loading platform 250 with the second positioning groove 220a on the base plate 220, and combining this with the magnetic attraction between the magnet 250 and the iron block on the base plate 220, a double constraint is formed, achieving high-precision positioning and stable fixation of the base plate 220. Its advantages are as follows: it significantly improves the placement accuracy of the base plate 220, reduces the matching error with the inner edge of the mobile phone metal frame, and ensures the consistency of the stacking of the mobile phone metal frames; the attraction force of the magnet 252 effectively resists equipment vibration and robot operation impact, adapts to high-speed automated production, reduces positioning compensation actions, and significantly improves equipment utilization; the durable structure such as the second positioning post 251 and the magnet 252 has no easily damaged parts, making cleaning and maintenance convenient and reducing maintenance costs; in addition, replacing the second positioning post 251 can make it compatible with the base plate 220 of various mobile phone metal frames, improving the versatility of the equipment; the magnetic adsorption process is safe with no sharp parts, reducing the risk of operator injury and material falling hazards, and comprehensively optimizing production efficiency, quality and safety.

[0038] In one embodiment, such as Figure 1 , Figure 2 As shown, the platform is equipped with a first cleaning tank 260 for cleaning the metal frame of a mobile phone placed on a fixture. The stacking assembly 310 also includes a third suction head 313 for picking up the fixture 210. The stacking robot 300 uses the third suction head 313 on the stacking assembly 310 to pick up the fixture 210 containing the metal frame of the mobile phone, and then transfers the fixture 210 to the first cleaning tank 260 for cleaning. By adding a first cleaning tank 260 to the platform 200 and configuring a third suction head 313 on the stacking assembly 310, online automated cleaning of the metal frame of the mobile phone before stacking is achieved. Cleaning removes impurities from the surface of the phone's metal frame, preventing them from embedding or getting stuck between the metal frame and partitions during stacking. This reduces uneven local pressure during polishing and effectively improves the yield rate. The first cleaning tank 260 is integrated on the stand 200, and the stacking robot 300 integrates the third suction head 313, which directly picks up the fixture 210 to complete the cleaning and transfer, shortening the process flow. The third suction head 313 is compatible with different fixtures 210, and the cleaning parameters can be flexibly adjusted to adapt to the production of multiple models and materials of phone metal frames, comprehensively optimizing production quality, efficiency, and cost.

[0039] In one embodiment, such as Figure 1 , Figure 2 , Figure 8 As shown, the stacking robot 300 and the loading robot 400 are ABB-IRB1600-10-1.45 six-axis robotic arms.

[0040] In one embodiment, such as Figure 8 , Figure 9 As shown, the stacking assembly 310 includes a base plate 314 connected to the top of the stacking robot 300. A plurality of first connecting plates 3141 are radially and spaced apart on the base plate 314. A first suction head 311 and a second suction head 312 are alternately disposed at the end of the plurality of first connecting plates 3141 away from the base plate 314. A second connecting plate 3142 longer than the first connecting plates 3141 is also disposed on the base plate 3144. A third suction head 313 is disposed at the end of the second connecting plate 3142 away from the second connecting plate 3142. In this embodiment, the plurality of first connecting plates 3141 and second connecting plates 3142 are respectively disposed on different semicircles of the rotational circumferential plane on which the base plate 314 is located. The radial arrangement of several first connecting plates 3141 and second connecting plates 3142 allows the three types of suction heads to be spaced at angular intervals, avoiding motion interference. This enables the simultaneous suction of the mobile phone metal frame, partition 3121 / cover 3122, and transfer of the fixture 210 in a single rotation, significantly shortening production time and improving production efficiency. The second connecting plate 3142 is longer, allowing the third suction head 313 to be adapted to fixtures 210 of different sizes, preventing the fixture 210 from interfering with the operation of other suction heads due to its excessive size.

[0041] In one embodiment, such as Figure 1 , Figure 2 , Figure 7As shown, the polishing machine 500 includes a housing 510, a polishing wheel 520 disposed inside the housing 510, a servo motor 530 connected to the polishing wheel 520 for transmission, a spray pipe 540 disposed next to the polishing wheel 520, a delivery pump 550 connected to the spray pipe 540, a filter 560 for collecting and filtering polishing liquid, an electrical control box 580, and a three-color warning light 570 disposed on the top of the housing 510. The electrical control box 580 is electrically connected to the servo motor 530, the delivery pump 540, the filter 560, and the three-color warning light 570. The electrical control box 582 is electrically connected to the control cabinet 100. A loading window 510a is opened on the side of the housing 510 near the loading robot 400, and an observation window 510b is also opened on the housing 510. In this embodiment, the polishing machine 500 operates as follows: First, when the stacked mobile phone metal frames are fed into the designated position inside the polishing machine 500 by the loading robot 400 through the loading window 510a of the housing 510, the electrical control box 580 receives the signal from the control cabinet 100 and starts the working program, controlling the servo motor 530 to operate. The servo motor 530 drives the polishing wheel 520 to start rotating. At the same time, the electrical control box 580 starts the delivery pump 550, which continuously sprays polishing liquid through the spray pipe 540 onto the polishing parts of the polishing wheel 520 and the mobile phone metal frames, providing lubrication and cooling for the polishing process. During the polishing process, the operator can observe the polishing status in real time through the observation window 510b on the housing 510. The waste liquid and impurities generated during polishing are collected and transported to the filter 560 for filtration. The filtered polishing liquid can be recycled. During this period, the electrical control box 580 monitors the operating status of the servo motor 530, the delivery pump 550, and the filter 560 in real time. If the equipment is operating normally, the tri-color warning light 570 on the top of the housing 510 will display green. If a fault occurs (such as insufficient polishing fluid or motor malfunction), the tri-color warning light 570 will switch to red and issue a warning, while the electrical control box 580 may trigger a shutdown protection. If it is in standby or preparation mode, the tri-color warning light 570 will display yellow. After polishing is completed, the electrical control box 580 controls all components to stop working, and the loading robot 400 removes the polished metal frame of the mobile phone through the loading window 510a. The polishing machine 500 awaits the next work instruction.

[0042] In one embodiment, such as Figure 1 As shown, a second cleaning tank 600 is provided between the loading robot 400 and the polishing machine 500 for cleaning the polished metal frame of the mobile phone. After the metal frame of the mobile phone is polished by the polishing machine 500, the grippers of the loading robot 400 will first transfer it to the second cleaning tank 600. The second cleaning tank 600 will use spraying, ultrasonic or immersion methods to specifically remove the polishing liquid, metal shavings and other impurities remaining on the surface of the metal frame of the mobile phone. After cleaning, the loading robot 400 will then transfer the clean metal frame of the mobile phone to the next process.

[0043] The aforementioned automated stacking and polishing device for mobile phone metal frames achieves fully automated operation through a control cabinet that coordinates stacking robots, feeding robots, and polishing machines. This solves the problems of low production efficiency, poor yield, high labor intensity, and high cost associated with manual polishing and traditional equipment in existing technologies. The stacking robot utilizes stacking components with first and second suction heads, along with protrusions on the base plate, partitions, and cover plate that match the inner edge of the mobile phone metal frame. This precisely limits the horizontal displacement of the frame, achieving stable vertical stacking and preventing over- or under-polishing caused by stacking misalignment. The entire process requires no manual intervention, reducing human error and handling damage, thus improving yield. Automated continuous production reduces the time spent on each operation, increasing production efficiency. Reducing the need for a large workforce lowers labor costs, management costs, and rework / scrap costs, while also reducing occupational disease and work injury risks, making it suitable for mass production.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatic stacking and polishing device for metal frames of mobile phones, comprising a control cabinet (100), characterized in that, Also includes: A stand (200) is provided with a fixture (210) and a base plate (220) movably mounted on it. The fixture (210) is used to hold incoming metal frames for mobile phones, and the base plate (220) is used to stack the metal frames for mobile phones. A stacking robot (300) is located next to the platform (200). The stacking robot (300) is rotatably equipped with a stacking assembly (310) at its top. The stacking assembly (310) includes: a plurality of first suction heads (311) for picking up products, and a number of second suction heads (312) equal to the number of the first suction heads (311) for picking up partitions (3121) or cover plates (3122). The stacking robot (300) is used to stack the mobile phone metal frame and the partitions (3121) or cover plates (3122) sequentially on the base plate (220). The base plate (220), partitions (3121), and cover plates (3122) are all provided with protrusions that match the inner edge of the mobile phone metal frame. The protrusions are used to prevent the mobile phone metal frame from shifting horizontally and to stack the mobile phone metal frame in the vertical direction. A loading robot (400) is located next to the platform (200). The top of the loading robot (400) is rotatably equipped with a gripper for gripping stacked mobile phone metal frames. A polishing machine (500) is located next to the loading robot (400) and is used to polish the stacked metal frames of mobile phones. The control cabinet (100) is electrically connected to the stacking robot (300), the loading robot (400), and the polishing machine (500).

2. The automatic stacking and polishing device for a mobile phone metal frame according to claim 1, characterized in that, The stand (200) is provided with a fixture platform (230), the fixture platform (230) is provided with a plurality of first positioning posts (231), and the lower surface of the fixture (210) is provided with a plurality of first positioning grooves (210a) that match the first positioning posts (231).

3. The automatic stacking and polishing device for a mobile phone metal frame according to claim 1, characterized in that, The stand (200) is provided with a positioning platform (240), the base plate (220) is provided on the positioning platform (240), the positioning platform (240) is provided with a photoelectric sensor (241) for calibration and positioning, and the photoelectric sensor (241) is electrically connected to the control cabinet (100).

4. The automatic stacking and polishing device for a mobile phone metal frame according to claim 1, characterized in that, The frame (200) is provided with a loading platform (250), the loading platform (250) is provided with a second positioning post (251) and a magnet (252), and the base plate (220) is provided with a second positioning groove (220a) that matches the second positioning post (251) and an iron block that corresponds to the magnet (252).

5. The automatic stacking and polishing device for a mobile phone metal frame according to claim 1, characterized in that, The stand (200) is recessed with a first cleaning tank (260) for cleaning the metal frame of a mobile phone placed on the fixture (210), and the stacking assembly (310) also includes a third suction head (313) for picking up the fixture (210).

6. The automatic stacking and polishing device for a mobile phone metal frame according to claim 1, characterized in that, The stacking robot (300) and the loading robot (400) are ABB-IRB1600-10-1.45 six-axis robotic arms.

7. The automatic stacking and polishing device for a mobile phone metal frame according to claim 5, characterized in that, The stacking assembly (310) includes a substrate (314) connected to the top of the stacking robot (300). A plurality of first connecting plates (3141) are radially and spaced apart on the substrate (314). The first suction head (311) and the second suction head (312) are alternately disposed at the ends of the plurality of first connecting plates (3141) away from the substrate (314). The substrate (314) is also provided with a second connecting plate (3142) longer than the first connecting plate (3141). The third suction head (313) is disposed at the end of the second connecting plate (3142) away from the second connecting plate (3142).

8. The automatic stacking and polishing device for a mobile phone metal frame according to claim 1, characterized in that, The polishing machine (500) includes a housing (510), a polishing wheel (520) disposed inside the housing (510), a servo motor (530) connected to the polishing wheel (520) for transmission, a spray pipe (540) disposed next to the polishing wheel (520), a delivery pump (550) connected to the spray pipe (540), a filter (560) for collecting and filtering polishing liquid, an electrical control box (580), and a three-color warning light (570) disposed on the top of the housing. The electrical control box (580) is electrically connected to the servo motor (530), the delivery pump (550), the filter (560), and the three-color warning light (570). The electrical control box (580) is electrically connected to the control cabinet (100). A loading window (510a) is opened on the side of the housing (510) near the loading robot. An observation window (510b) is also opened on the housing (510).

9. The automatic stacking and polishing device for a mobile phone metal frame according to claim 1, characterized in that, It also includes a second cleaning tank (600), which is located between the loading robot (400) and the polishing machine (500).

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