A multi-surface polishing tool for a watch case

Abstract

This invention relates to the field of polishing equipment technology, and discloses a multi-faceted polishing fixture for watch cases, including a processing box. A silicone mesh plate is located in the center of the inner side of the processing box, and a placement seat is provided on the silicone mesh plate. Multiple processing chambers for individually processing the watch case are equidistantly arranged on the placement seat. By adding and setting a front-end processing mechanism, which uses alkaline cleaning water immersion combined with ultrasonic vibration and a circulating filtration structure, various oil stains and impurities such as cutting fluid and release agents remaining on the surface and crevices of the watch case can be thoroughly removed, eliminating polishing slippage and surface dulling caused by oil residue. Secondly, relying on constant-temperature liquid immersion, the thin-walled watch case is heated evenly throughout, thoroughly and evenly releasing residual metal stress from previous processing, avoiding subsequent polishing deformation caused by uneven stress release. Simultaneously, it optimizes the polishing process, reduces grinding head vibration, and eliminates wavy lines and light / dark layer defects on the watch case surface.

Description

Technical Field

[0001] This invention relates to the field of polishing equipment technology, specifically a multi-faceted polishing fixture for watch cases. Background Technology

[0002] As the core component of a wristwatch, the watch case is generally manufactured using mass production processes. After machining such as cutting and forging, the surface of the case retains machining marks, microscopic unevenness, and fine burrs. The overall density of the metal surface is insufficient, resulting in a rough feel when worn, easy snagging on clothing, and a high tendency to attract sweat, dust, and other impurities, accelerating metal oxidation and corrosion. Therefore, polishing is a crucial surface finishing process in the mass production of watch cases. By grinding and smoothing out surface imperfections, the smoothness and density of the watch case surface can be effectively optimized, improving the smoothness of wear, unifying the product's appearance and texture, and enhancing the daily protective performance of the watch case.

[0003] Currently, the industry commonly uses fixed-pressure polishing for mass production. While this process is suitable for regular, well-proportioned metal parts, it is unsuitable for the thin walls, complex curved surfaces, and intricate structures of watch cases. The lugs and crown area of ​​a watch case have delicate structures and even thinner walls. Maintaining constant polishing pressure throughout the process can cause excessive grinding in certain areas. While polishing and smoothing the surface, it easily rounds off fine edges, leading to localized structural deformation. This damages the original watch's lines and aesthetic design, resulting in inconsistent appearances and difficulty in ensuring uniformity in mass-produced watch cases.

[0004] The frictional heat generated during polishing can further exacerbate product defects and affect the quality of the finished product. The continuous friction during polishing generates high temperatures, which not only release residual internal stress left from the initial machining of the watch case but also couple with the mechanical grinding force, further amplifying the deformation of thin-walled watch cases. Especially for ultra-thin watch cases with relatively weak structural rigidity, under the combined effects of heat and mechanical force, in addition to problems such as case deformation and disordered textures, oxidation and discoloration of the metal surface can also occur. Ultimately, this results in color differences, deformation, and other defects in batch products, significantly reducing the polishing yield and making it difficult to meet the mass production quality requirements of high-end watches. Therefore, those skilled in the art have proposed a multi-faceted polishing fixture for watch cases to solve the aforementioned technical problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-faceted polishing fixture for watch cases, which solves the problems of structural deformation and over-polishing caused by existing fixed-pressure polishing methods during the watch case processing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-faceted polishing fixture for a watch case, comprising, The processing box has a silicone mesh plate in the middle of its inner side, a placement seat on the silicone mesh plate, and multiple processing chambers for individually processing watch cases are arranged at equal intervals on the placement seat. The front-end processing mechanism, located at the bottom of the processing box, is used to perform front-end processing on the watch cases after batch processing before polishing. The partitioned processing mechanism, located at the top of the processing box, is used to perform partitioned polishing processing on the main plane of the watch case and the lugs and crown. A mobile cleaning unit, located on one side of the processing box, is used to perform mobile cleaning of watch cases processed by the partitioned processing unit. The surface strengthening mechanism, located at the rear of the processing box, is used to strengthen the surface of the watch case after polishing.

[0007] Preferably, the front-end processing mechanism includes a base frame, the bottom of the processing box is fixedly connected to the base frame, the processing box is filled with alkaline cleaning water when processing the watch case, the top center of the base frame is provided with a heating heater to heat the alkaline cleaning water inside the processing box, and the bottom center of the base frame is provided with a multi-stage filter box and a circulation pump on both sides respectively. The circulation pump draws the alkaline cleaning water and impurities in the processing box into the multi-stage filter box for filtration through a connecting pipe, and the filtered alkaline cleaning water flows back into the processing box through a connecting pipe.

[0008] Preferably, the front-end processing mechanism further includes ultrasonic transducers. Multiple ultrasonic transducers are equidistantly arranged at the bottom of the silicone mesh plate along the inner wall of the processing box, and one end of each ultrasonic transducer is connected to a corresponding position on the inner wall of the processing box. A frequency converter is provided in the lower middle part of the front side of the processing box. The frequency converter is connected to all the ultrasonic transducers in the processing box through a sealed circuit, and independently controls the pulse frequency to achieve uniform vibration throughout the entire range. A hot air dryer is slidably connected to the top of the processing box.

[0009] Preferably, the partition processing mechanism includes a connecting frame, the connecting frame is fixedly connected to the top center of the processing box, a base is provided on the top of the processing box, cylinders are provided on both sides of the middle of the connecting frame, the top ends of the cylinder rods are respectively connected to the corresponding positions of the top of the base, the bottom of the processing cavity is provided with an edge holder for positioning and fixing the edge of the watch case, and the bottom center of the processing cavity is provided with a contour positioning seat that matches the internal shape of the watch case.

[0010] Preferably, the partitioned processing mechanism further includes a mounting base. Multiple sets of mounting bases are equidistantly arranged on the bottom of the base, and multiple synchronous drivers are equidistantly arranged on the top of the base. The synchronous drivers synchronously drive the bottom of each set of mounting bases to rotate synchronously. An inner grinding seat is provided in the middle of the bottom end of each mounting base, and an outer grinding sleeve is provided near the edge of the bottom end of each mounting base. A polishing part is provided at the bottom of both the inner grinding seat and the outer grinding sleeve.

[0011] Preferably, the partitioned processing mechanism further includes an inflation chamber. An inflation chamber is provided in the middle of the inner side of both the inner grinding seat and the outer grinding sleeve. Multiple vertical guide ribs are equidistantly arranged on the inner wall of each inflation chamber. Multiple electro-proportional valves are equidistantly arranged in the middle of the base. When the electro-proportional valves inject externally input gas into the inflation chambers of the inner grinding seat and the outer grinding sleeve, they set the injection pressure of the different inflation chambers. The pressure in the inflation chamber of the inner grinding seat is medium pressure, and the pressure in the inflation chamber of the outer grinding sleeve is low pressure.

[0012] Preferably, the flow cleaning mechanism includes a strip conveyor, which is provided on the upper part of one side of the treatment box. An inclined plate is rotatably connected to one side of the inner wall of the treatment box. Multiple guide grooves are equidistantly provided on the upper surface of the inclined plate. Multiple discharge grooves are equidistantly provided on the placement seat, and the discharge grooves connect each treatment chamber. Multiple vibrators are equidistantly provided on the middle part of the side of the base away from the inclined plate. A three-way pipe is provided at the bottom of the treatment box, and one end of the three-way pipe is connected to the outlet of the circulating pump.

[0013] Preferably, the surface strengthening mechanism includes a folded sealing plate, a folded sealing plate for sealing the inside of the processing box is provided in the upper middle part of the inner side of the processing box, a vacuum pump is provided in the lower middle part of the rear side of the processing box, electrode plates are provided on both sides of the inner wall of the processing chamber, a high-frequency energy storage power supply is provided on one side of the lower middle part of the rear end of the processing box, and a display controller is provided on one side of the upper middle part of the front end of the processing box.

[0014] Preferably, the surface strengthening mechanism further includes a precursor storage tank. A precursor storage tank is provided on the other side of the lower middle part of the rear end of the processing box. A metering pump is provided on one side of the middle part of the rear end of the processing box. A dispersion box is provided in the middle of the rear side of the processing box. A vaporizer is provided on the inner wall of the processing chamber. The vaporizer is connected to the interior of the dispersion box through an internal flow channel in the base. The precursor storage tank delivers it to the dispersion box through the metering pump.

[0015] Working Principle: When polishing watch cases, the front-end processing mechanism of the equipment starts first. The operator places the watch case to be processed stably in the processing chamber inside the placement seat. Then, a measured amount of prepared alkaline cleaning water is injected into the processing tank. The alkaline cleaning water stored inside the processing tank can evenly seep into the processing chamber through the silicone mesh plate, achieving complete immersion of the watch case. At the same time, the heating heater fixed above the base is activated, and the alkaline cleaning water inside the processing tank is heated in a gradient manner through uniform heating. As the water temperature gradually rises, the alkaline cleaning water can fully dissolve and peel away impurities. This process removes various surface contaminants such as cutting fluid, machine oil, mold release agents, and rust-preventive oil that adhere to the watch case during the initial machining process. The pre-treatment cleaning process thoroughly cleans the watch case, removing these contaminants. Under continuous immersion in a constant-temperature liquid, the entire watch case inside the treatment chamber heats up evenly, effectively releasing residual metal stress accumulated during cutting and forging processes. This addresses the root cause of defects such as case warping, lug deformation, and edge springback that can occur during subsequent polishing of ultra-thin, thin-walled watch cases. It effectively preserves the lines and contours of the original watch design. Furthermore, the uniform heating and thorough stress release before polishing allow the watch case to withstand subsequent polishing processes. The process involves more uniform stress and a smoother processing, effectively avoiding mechanical vibrations from the polishing head and eliminating surface defects such as wavy lines and uneven light and shadow. Compared to traditional static immersion methods, this process uses a full-area constant-temperature liquid immersion mode, eliminating localized temperature differences and heat blind spots on the watch case. This results in a more thorough and uniform release of residual metal stress, laying a solid foundation for subsequent high-precision polishing. While the constant-temperature immersion removes contaminants and releases stress, the ultrasonic transducer inside the treatment chamber simultaneously activates, generating high-frequency ultrasonic vibrations in an alkaline clean water environment. These high-frequency vibrations continuously generate a large number of microscopic cavitation bubbles. The continuous bursting of air bubbles impacts areas inaccessible to conventional cleaning methods, such as the complex curves, deep and shallow grooves, and precision assembly holes of the watch case. This powerfully removes stubborn cutting oil stains, residual mold release agents, and other impurities adhering to the surface and deep within the crevices of the watch case, achieving a comprehensive, thorough cleaning. Simultaneously, a circulation pump mounted on the chassis starts, continuously drawing alkaline cleaning water from the treatment tank through external piping and delivering it to a multi-stage filtration tank. As the water flows through the specialized filter materials in the multi-stage filtration tank, oil stains, metal fragments, and stripped impurities are effectively separated and trapped. The filtered and purified cleaning liquid is then returned to the treatment tank through a return pipeline. Through continuous liquid circulation filtration and dynamic flushing, various impurities generated during the stripping process are continuously removed, completely preventing impurities from re-adhering to the watch case surface and causing secondary pollution. This ensures a continuously clean cleaning environment. After completing the high-temperature immersion cleaning and stress relief pretreatment of the watch case, the alkaline cleaning water inside the treatment tank is completely drained. Then, the staff moves the hot air dryer mounted above the treatment tank.The hot air dryer is precisely positioned directly above the base. The constant-temperature hot air output from the dryer thoroughly dries the watch case positioned on the base, completely removing any trace amounts of liquid remaining on the surface and in the crevices. This completes the pre-treatment process before polishing. After the pre-treatment, the equipment's partitioned processing mechanism is activated. Before the actual polishing, the pre-treated watch case is precisely positioned using the contour positioning seat at the bottom. Simultaneously, edge holders limit and fix the outer edge of the watch case, effectively restraining displacement and movement during processing. This stable clamping and fixing before polishing ensures the precision of the subsequent polishing. After clamping and fixing, the cylinder of the connecting frame is activated. In operation, the cylinder's extension rod pushes outward, simultaneously causing the base at the bottom to move vertically downward, allowing the entire base to enter the processing chamber and come into contact with the surface of the placement seat. At the same time, the mounting base fixed to the bottom of the base extends into the corresponding processing chamber, ensuring precise contact between the watch case surface inside the processing chamber and the inner grinding seat and outer grinding sleeve located at the bottom of the mounting base. At this point, an external air source supplies precise air to the inflation chambers inside the inner grinding seat and outer grinding sleeve through the delivery pipeline. Simultaneously, the electro-proportional valve on the base outputs constant air pressure to the two inflation chambers according to preset system parameters. The medium-pressure air output from the inner grinding seat inflation chamber ensures the polishing and leveling effect of the main surface of the watch case, guaranteeing the flatness and gloss of the crystal. The low-pressure air output from the outer grinding sleeve inflation chamber is suitable for the lugs. The thin-walled, finely structured components, such as the case edges, crown hole perimeter, and inner grooves, ensure a thorough and uniform fit between the grinding wheel and the irregularly shaped recesses, achieving refined polishing. This fundamentally avoids problems like over-polishing of fine structures, rounding of edges, and contour deformation. After air pressure adjustment, the synchronous driver mounted on the base starts operating, synchronously driving the lower connected mounting base to rotate at a uniform speed. During the rotation of the mounting base, the outer grinding sleeve and inner grinding seat rotate coaxially as a whole. During rotation, the polishing parts on the surfaces of the inner grinding seat and outer grinding sleeve perform integrated polishing on all areas of the watch case, including flat surfaces, curved surfaces, edges, and grooves. At the same time, the vertical guide ribs arranged inside the air filling chamber effectively improve the structural stability of the outer grinding sleeve and inner grinding seat, preventing damage during high-speed rotation of the grinding wheel. To address issues such as distortion, misalignment, and torsional damage, the system ensures continuous, stable, and orderly polishing operations, precisely completing the automated polishing process for watch cases. During the simultaneous polishing process, the equipment's flowing cleaning mechanism activates. External cleaning water is quantitatively delivered to the strip conveyor within the processing tank via a conveyor and connecting pipeline. The water is evenly distributed and flows out steadily. Guided by guide grooves on the inclined plate, the distributed water flows smoothly towards the placement seat, then flows into the processing chamber through a pre-set discharge groove on the placement seat. This flowing water effectively washes away metal debris, polishing dust, and other impurities generated during polishing, preventing secondary contamination and surface scratches caused by residual impurities.On the other hand, the continuously flowing cold water can be used to cool the heated watch case in real time, effectively suppressing the metal oxidation and discoloration defects caused by high-temperature friction on thin-walled watch cases, ensuring a uniform and consistent color after polishing. After the cleaning process is completed by the strip conveyor, the vibrator installed at the bottom of the placement seat starts running. Through high-frequency micro-vibration, the entire watch case vibrates slightly, causing the residual liquid and trace impurities adhering to the surface, gaps, and textures of the watch case to be completely vibrated and removed. The removed waste liquid and impurities are collected downwards through the discharge tank of the placement seat and the silicone mesh plate of the treatment box, and finally discharged outside the equipment through the three-way pipe at the bottom, completely completing the dynamic flow cleaning process during polishing. After the polishing and cleaning processes are completed, the surface strengthening mechanism of the equipment is activated. The operator first pushes the folding sealing plate on top of the treatment chamber to fully unfold it, achieving a complete seal of the internal cavity and isolating it from external air and dust interference. Then, the vacuum pump on the treatment chamber is activated to continuously extract air from the cavity, achieving the pre-set vacuum level. Once the vacuum level is reached, the high-frequency energy storage power supply starts working, exciting uniform and stable low-temperature plasma between the electrode plates arranged inside the treatment chamber. The plasma beam evenly bombards the metal surface of the watch case, further removing trace amounts of residual organic impurities on the surface and simultaneously breaking down metal... By utilizing surface molecular bonds, the surface energy and adhesion activity of the metal surface are effectively enhanced. This plasma activation treatment is conducted entirely in a low-temperature environment, preventing the generation of high-temperature heat and completely avoiding problems such as metal burns, surface coating damage, and discoloration. It causes no damage to the watch case itself. After surface activation, the nano-coating precursor material inside the precursor tank is quantitatively delivered and vaporized via a high-precision metering pump. The vaporized material is then transported to a dispersion box and uniformly dispersed throughout the entire chamber via a vaporizer built into the processing chamber. Under a stable plasma field, the vaporized material molecules undergo ionization, decomposition, and recombination reactions, uniformly depositing on the clean, polished metal surface of the watch case. A dense, transparent nano-protective coating is formed. This coating is uniformly thin and adheres perfectly to the metal substrate surface without covering or obscuring the original mirror finish and brushed texture of the watch case. Simultaneously, the precision holes sealed in the earlier stages are not blocked by the coating, preserving the watch case's appearance and assembly precision. After the nano-coating deposition and strengthening process is completed, the vacuum pump is turned off, allowing the internal chamber of the processing chamber to slowly depressurize and return to normal pressure. Then, the workers refold the unfolded sealing plate, open the chamber, and remove the finished watch case. This completes the fully automated processing steps of pre-treatment decontamination and stress relief, precision polishing, dynamic cleaning, and nano-surface strengthening for the watch case.

[0016] This invention provides a multi-faceted polishing fixture for watch cases. It offers the following advantages: 1. This invention, by adding and setting a front-end processing mechanism, before polishing the watch case, uses alkaline cleaning water immersion combined with ultrasonic vibration and a circulating filtration structure to thoroughly remove various oil stains and impurities such as cutting fluid and release agent from the surface and gaps of the watch case, eliminating problems such as polishing slippage and surface dullness caused by oil residue. Secondly, relying on the whole-area immersion in constant temperature liquid, the thin-walled watch case is heated evenly, thoroughly and evenly releasing the metal stress remaining from the previous processing, avoiding subsequent polishing deformation caused by uneven stress release, and optimizing the polishing process, reducing grinding head vibration, and eliminating wavy lines and light and dark discontinuities on the watch case surface.

[0017] 2. By adding and setting a partitioned processing mechanism, this invention not only relies on the contour positioning seat and edge holder to accurately limit and fix the watch case during polishing, avoiding workpiece displacement and shaking during processing and ensuring the uniformity of the polished appearance of batch watch cases, but also adopts a partitioned air pressure polishing method to distinguish between medium and low pressure to adapt to different areas of the watch case structure. This processing method can be specifically adapted to the processing characteristics of thin walls and irregular curved surfaces, solving the problem of rounding and deformation of lugs and edges caused by traditional fixed pressure polishing, and completely preserving the original appearance lines and structural layering of the watch.

[0018] 3. By adding and setting a flowing cleaning mechanism, this invention can continuously flush and clean the metal shavings and polishing dust generated during the polishing process, and promptly remove residual impurities from the surface and crevices of the watch case to prevent secondary scratches and surface contamination caused by impurities, thus effectively improving the cleanliness of the polished product. On the other hand, it can use flowing water to cool down the watch case that has been heated by polishing friction in real time, weakening the coupling deformation effect of mechanical friction and high temperature, improving the problem of thin-walled watch cases being prone to oxidation and discoloration when heated, and ensuring that the color of batch products is uniform.

[0019] 4. By adding and setting a surface strengthening mechanism, after the watch case is polished, this invention not only thoroughly removes trace organic residues from the surface of the watch case through low-temperature plasma activation treatment, but also optimizes the molecular structure of the metal surface, enhances surface adhesion activity, and eliminates the problem of later oxidation and corrosion caused by surface impurities. Furthermore, without changing the original mirror surface, brushed texture, and precision hole structure of the watch case, a nano-protective coating can be deposited to compensate for the lack of density of the metal surface after polishing, enhance the watch case's anti-fouling and anti-corrosion performance, and effectively improve the problem of the watch aging and losing its luster after long-term wear. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the front structure of the present invention; Figure 2 This is a schematic diagram of the rear structure of the present invention; Figure 3 This is a cross-sectional view of the internal structure of the processing box of the present invention; Figure 4 This is a partial structural diagram of the connecting frame of the present invention; Figure 5 This is a schematic diagram of the base bottom structure of the present invention; Figure 6 This is a schematic diagram of the bottom structure of the mounting base of the present invention; Figure 7 This is a cross-sectional schematic diagram of the internal structure of the inner and outer grinding bases of the present invention; Figure 8 This is a schematic diagram of the base structure of the present invention.

[0021] The components include: 1. Processing tank; 2. Base frame; 3. Heating heater; 4. Circulating pump; 5. Multi-stage filter box; 6. Variable frequency controller; 7. Display controller; 8. Mounting base; 9. Base; 10. Cylinder; 11. Connecting frame; 12. Electro-proportional valve; 13. Hot air dryer; 14. Strip conveyor; 15. Metering pump; 16. Synchronous drive; 17. Folding sealing plate; 18. High-frequency energy storage power supply; 19. Vacuum pump; 20. 21. Three-way pipe; 22. Dispersion box; 23. Precursor storage tank; 24. Silicone mesh plate; 25. Ultrasonic vibrating plate; 26. Placement seat; 27. Processing chamber; 28. Inclined plate; 29. ​​Guide groove; 30. Vibrator; 31. Outer grinding sleeve; 32. Inner grinding seat; 33. Polishing section; 34. Vertical guide rib; 35. Inflation chamber; 36. Contouring positioning seat; 37. Electrode plate; 38. Vaporizer; 39. Edge retainer; 30. Discharge groove. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 2 This invention provides a multi-faceted polishing fixture for watch cases, including a processing box 1. A silicone mesh plate 23 is provided in the middle of the inner side of the processing box 1. A placement seat 25 is provided on the silicone mesh plate 23. Multiple processing cavities 26 for individually processing the watch case are provided at equal intervals on the placement seat 25. Please see the appendix Figure 2 - Appendix Figure 3 The front-end processing mechanism, located at the bottom of the processing box 1, is used to perform front-end processing on the watch cases after batch processing before polishing. The front-end processing mechanism includes a base frame 2. The bottom of the processing box 1 is fixedly connected to the base frame 2. When processing the watch case, the processing box 1 is filled with alkaline cleaning water. The top center of the base frame 2 is equipped with a heating heater 3 to heat the alkaline cleaning water inside the processing box 1. The bottom center of the base frame 2 is equipped with a multi-stage filter box 5 and a circulation pump 4 on both sides. The circulation pump 4 draws the alkaline cleaning water and impurities in the processing box 1 into the multi-stage filter box 5 for filtration through a connecting pipe. The filtered alkaline cleaning water flows back into the processing box 1 through the connecting pipe.

[0024] When the front-end processing mechanism is started, the operator places the watch case to be processed stably into the processing chamber 26 inside the placement seat 25, and then injects a measured amount of prepared alkaline cleaning water into the processing tank 1. The alkaline cleaning water stored inside the processing tank 1 can evenly seep into the processing chamber 26 through the silicone mesh plate 23, achieving complete immersion of the watch case. At the same time, the heating heater 3 fixed above the base 2 is started synchronously, and the alkaline cleaning water inside the processing tank 1 is heated in a gradient manner through uniform heating. As the water temperature gradually rises, the alkaline cleaning water can fully dissolve and peel off various surface contaminants such as cutting fluid, machine oil, mold release agent, and rust-preventive oil that adhered to the watch case during the previous machining process, and thoroughly complete the pre-cleaning operation of the watch case.

[0025] Under the continuous immersion in a constant-temperature liquid, the watch case inside the treatment chamber 26 heats up uniformly, which fully releases the residual metal stress accumulated during the cutting, forging, and other front-end processing steps. This fundamentally solves defects such as case warping, lug deformation, and edge springback that occur in the subsequent polishing process of ultra-thin and thin-walled watch cases. It effectively preserves the lines and contours of the watch's original design. At the same time, the uniform heating and thorough stress release treatment before polishing allows the watch case to be subjected to more even force and the processing process to be smoother during the subsequent polishing process. It effectively avoids mechanical vibration caused by the polishing head during operation and eliminates appearance defects such as wavy lines and light and shadow breaks on the watch case surface. Compared with the traditional static immersion method, this process adopts a full-area constant-temperature liquid immersion mode, with no local temperature differences or heat blind spots on the watch case. The release of residual metal stress is more thorough and uniform, laying a high-quality foundation for subsequent high-precision polishing processing.

[0026] The front-end processing mechanism also includes ultrasonic transducers 24. Multiple ultrasonic transducers 24 are equidistantly arranged along the inner wall of the processing box 1 at the bottom of the silicone mesh plate 23, and one end of each ultrasonic transducer 24 is connected to a corresponding position on the inner wall of the processing box 1. A frequency converter 6 is provided in the lower middle part of the front side of the processing box 1. The frequency converter 6 is connected to all the ultrasonic transducers 24 in the processing box 1 through a sealed circuit, and independently controls the pulse frequency to achieve uniform vibration throughout the entire area. A hot air dryer 13 is slidably connected to the top of the processing box 1.

[0027] While the watch is being soaked in a constant temperature environment to remove dirt and release stress, the ultrasonic transducer 24 built into the treatment box 1 starts working simultaneously. It generates high-frequency ultrasonic vibrations in an alkaline clean water environment. The high-frequency vibrations continuously generate a large number of microscopic cavitation bubbles. The bubbles continuously burst and impact areas that are difficult to reach by conventional cleaning, such as the complex curved surfaces, deep and shallow grooves, and precision assembly holes of the watch case. This effectively removes stubborn cutting oil stains, residual mold release agents, and other impurities that are attached to the surface and deep crevices of the watch case, achieving all-round cleaning of the watch case without dead angles.

[0028] Simultaneously, the circulation pump 4 mounted on the base frame 2 starts synchronously, continuously drawing alkaline cleaning water from inside the treatment tank 1 through external pipelines and delivering it to the multi-stage filter box 5. As the water flows through the specialized filter material inside the multi-stage filter box 5, oil, metal fragments, and stripping impurities carried in the water are fully separated and trapped. The filtered and purified cleaning liquid is then returned to the treatment tank 1 through the return pipeline. Through continuous liquid circulation filtration and dynamic flushing, various impurities generated during the stripping process can be continuously removed, completely preventing impurities from re-adhering to the surface of the casing and causing secondary pollution, thus ensuring the continuous cleanliness of the cleaning environment.

[0029] After completing the high-temperature immersion cleaning and stress relief pretreatment of the watch case, the alkaline cleaning water inside the treatment chamber 1 is completely drained. Then, the staff moves the hot air dryer 13 mounted on top of the treatment chamber 1, precisely positioning it directly above the base 9. The constant-temperature hot air output from the hot air dryer 13 thoroughly dries the watch case positioned on the base 9, completely removing any trace amounts of liquid remaining on the surface and in the crevices of the case. This completes the entire pretreatment process before the watch case polishing.

[0030] Please see the appendix Figure 4 - Appendix Figure 5 The partitioned processing mechanism, located at the top of the processing box 1, is used to perform partitioned polishing processing on the main plane of the watch case and the lugs and crown. The partitioned processing mechanism includes a connecting frame 11. The connecting frame 11 is fixedly connected to the top center of the processing box 1. A base 9 is provided on the top of the processing box 1. Cylinders 10 are provided on both sides of the middle of the connecting frame 11. The top of the rod of the cylinder 10 is connected to the corresponding position of the top of the base 9. An edge holder 38 for positioning and fixing the edge of the watch case is provided at the bottom of the processing cavity 26. A contour positioning seat 35 matching the internal shape of the watch case is provided at the bottom center of the processing cavity 26.

[0031] When the partitioned processing mechanism is started, before the formal polishing process begins, the staff will precisely fit and position the pre-treated watch case inside the processing chamber 26 using the bottom contour positioning seat 35. At the same time, the edge holder 38 will limit and fix the outer edge of the watch case, effectively restraining the displacement and shaking of the watch case during the processing process, and stably completing the precision clamping and fixing operation before polishing, ensuring the subsequent polishing accuracy.

[0032] Please see the appendix Figure 6 - Appendix Figure 7 The partitioned processing mechanism also includes mounting bases 8. Multiple sets of mounting bases 8 are equidistantly arranged at the bottom of the base 9. Multiple synchronous drivers 16 are equidistantly arranged at the top of the base 9. The synchronous drivers 16 drive the bottom of each set of mounting bases 8 to rotate synchronously. An inner grinding seat 31 is provided in the middle of the bottom end of each mounting base 8. An outer grinding sleeve 30 is provided near the edge of the bottom end of each mounting base 8. A polishing part 32 is provided at the bottom of both the inner grinding seat 31 and the outer grinding sleeve 30.

[0033] After the clamping and fixing are completed, the cylinder 10 assembled on the connecting frame 11 starts to operate. The telescopic rod of the cylinder 10 pushes outward, which simultaneously drives the base 9 at the bottom to move vertically downward, so that the base 9 enters the processing box 1 and comes into contact with the surface of the placement seat 25. At the same time, the mounting seat 8 fixed at the bottom of the base 9 extends into the corresponding processing cavity 26, so that the surface of the watch case in the processing cavity 26 is precisely fitted with the inner grinding seat 31 and the outer grinding sleeve 30 set at the bottom of the mounting seat 8.

[0034] The partitioned processing mechanism also includes an air chamber 34. An air chamber 34 is provided in the middle of the inner side of the inner grinding seat 31 and the outer grinding sleeve 30. Multiple vertical guide ribs 33 are equidistantly arranged on the inner wall of the air chamber 34. Multiple electric proportional valves 12 are equidistantly arranged in the middle of the base 9. When the electric proportional valve 12 injects externally input gas into the air chamber 34 in the inner grinding seat 31 and the outer grinding sleeve 30, it sets the injection pressure of the different air chambers 34. The air pressure in the air chamber 34 in the inner grinding seat 31 is medium pressure, and the air pressure in the air chamber 34 in the outer grinding sleeve 30 is low pressure.

[0035] At this time, the external air source supplies air precisely to the air chambers 34 inside the inner grinding seat 31 and the outer grinding sleeve 30 through the delivery pipeline. At the same time, the electric proportional valve 12 mounted on the base 9 outputs constant air pressure to the two air chambers 34 according to the system preset parameters. The medium pressure output by the air chamber 34 of the inner grinding seat 31 can ensure the polishing and leveling effect of the main surface of the watch case, and ensure the flatness and gloss of the mirror. The low pressure output by the air chamber 34 of the outer grinding sleeve 30 can be adapted to the lugs, case edges, crown hole perimeter, inner grooves and other thin-walled fine structures, ensuring that the grinding wheel and the irregular recessed positions are fully fitted and evenly contacted, achieving fine polishing, and fundamentally avoiding problems such as over-polishing of fine structures, rounding of edges and corners, and deformation of contours.

[0036] After the air pressure is adjusted, the synchronous driver 16 mounted on the base 9 starts to run, synchronously driving the mounting base 8 connected to the lower part to rotate at a uniform speed. During the rotation of the mounting base 8, the outer grinding sleeve 30 and the inner grinding seat 31 are synchronously rotated coaxially. During the rotation, the polishing part 32 on the surface of the inner grinding seat 31 and the outer grinding sleeve 30 performs integrated polishing processing on the entire area of ​​the watch case, including the flat surface, curved surface, edges, and grooves. At the same time, the vertical guide ribs 33 arranged inside the air chamber 34 can effectively improve the structural stability of the outer grinding sleeve 30 and the inner grinding seat 31, avoiding problems such as twisting, offset, and torsional damage during the high-speed rotation of the grinding wheel, ensuring that the polishing operation is carried out continuously, stably, and orderly, and accurately completing the automated polishing process of the watch case.

[0037] Please see the appendix Figure 3 A mobile cleaning mechanism is located on one side of the processing box 1 and is used to perform mobile cleaning on the watch case being processed by the partition processing mechanism. The mobile cleaning mechanism includes a strip conveyor 14. The strip conveyor 14 is installed on the upper part of one side of the treatment box 1. An inclined plate 27 is rotatably connected to one side of the inner wall of the treatment box 1. Multiple guide grooves 28 are equidistantly opened on the upper surface of the inclined plate 27. Multiple discharge grooves 39 are equidistantly opened on the placement seat 25. The discharge grooves 39 connect each treatment chamber 26. Multiple vibrators 29 are equidistantly arranged on the middle part of the side of the base 9 away from the inclined plate 27. A three-way pipe 20 is installed at the bottom of the treatment box 1, and one end of the three-way pipe 20 is connected to the outlet of the circulating pump 4.

[0038] When the mobile cleaning mechanism is started, external cleaning water is quantitatively delivered to the strip conveyor 14 assembled in the treatment box 1 through the conveying equipment and connecting pipeline. The water is evenly distributed by the strip conveyor 14 and flows out steadily. The distributed water is guided by the guide groove 28 on the inclined plate 27 and flows smoothly towards the placement seat 25. Then, it flows into the treatment chamber 26 through the pre-set discharge groove 39 of the placement seat 25. The flowing water can wash away metal debris, polishing dust and other impurities generated during the polishing process in real time, avoiding the secondary pollution of the watch case and surface scratches caused by the residue of impurities. On the other hand, the continuously flowing cold water can keep the watch case heated by polishing friction in real time, effectively suppressing the metal oxidation and discoloration defects caused by high temperature friction of thin-walled watch cases, and ensuring that the color of the watch case is uniform after polishing.

[0039] After the water conveying and cleaning process of the strip conveyor 14 is completed, the vibrator 29 installed at the bottom of the placement seat 25 is started. The high-frequency micro-vibration drives the entire case to vibrate slightly, so that the residual liquid and trace impurities attached to the surface, gaps and textures of the case are completely vibrated and removed. The removed waste liquid and impurities are collected downward through the discharge groove 39 of the placement seat 25 and the silicone mesh plate 23 of the treatment box 1, and finally discharged to the outside of the equipment through the three-way pipe 20 at the bottom, thus completely completing the dynamic flow cleaning operation in the polishing process.

[0040] Please see the appendix Figure 2 and attached Figure 8 The surface strengthening mechanism is located at the rear of the processing box 1 and is used to strengthen the surface of the watch case after polishing.

[0041] The surface strengthening mechanism includes a folded sealing plate 17. The upper inner part of the processing box 1 is provided with a folded sealing plate 17 to seal the inside of the processing box 1. The lower rear part of the processing box 1 is provided with a vacuum pump 19. Electrode plates 36 are provided on both sides of the inner wall of the processing chamber 26. A high-frequency energy storage power supply 18 is provided on one side of the lower rear part of the processing box 1. A display controller 7 is provided on one side of the upper front part of the processing box 1.

[0042] When the surface strengthening mechanism is started, the staff first pushes the folding sealing plate 17 on the top of the processing box 1 to fully unfold it, so as to achieve a complete seal of the internal cavity of the processing box 1 and isolate external air and dust interference. Then, the vacuum pump 19 on the processing box 1 is started to continuously extract the air inside the cavity, so that the inside of the processing box 1 reaches the vacuum environment preset by the process.

[0043] Once the vacuum level in the cavity reaches the standard, the high-frequency energy storage power supply 18 starts working, causing uniform and stable low-temperature plasma to be generated between the electrode plates 36 arranged inside the processing cavity 26. The plasma beam bombards the metal surface of the watch case evenly, which can further remove trace organic residual impurities on the surface layer, and break the molecular bonds of the metal surface layer, effectively improving the surface energy and adhesion activity of the metal surface. The entire plasma activation process is carried out in a low-temperature environment and will not generate high-temperature heat, which can completely avoid problems such as metal burns, damage to the surface coating, and discoloration of the appearance, without causing any damage to the watch case itself.

[0044] The surface strengthening mechanism also includes a precursor storage tank 22. The precursor storage tank 22 is located on the other side of the lower middle part of the rear end of the processing box 1. A metering pump 15 is located on one side of the middle part of the rear end of the processing box 1. A dispersion box 21 is located in the middle of the rear side of the processing box 1. A vaporizer 37 is located on the inner wall of the processing chamber 26. The vaporizer 37 is connected to the interior of the dispersion box 21 through the internal flow channel in the base 9. The precursor storage tank 22 delivers the precursor to the dispersion box 21 through the metering pump 15.

[0045] After the surface activation treatment is completed, the nano-coating precursor material inside the precursor storage tank 22 is quantitatively delivered and vaporized by the high-precision metering pump 15. The vaporized material medium is delivered to the dispersion box 21 and then uniformly dispersed into the entire cavity through the vaporizer 37 built into the processing chamber 26. Under the action of a stable plasma field, the vaporized material molecules undergo ionization, decomposition, and recombination reactions, and a dense and transparent nano-protective coating is uniformly deposited on the clean metal surface of the polished watch case to form a layer. The nano-coating is uniform and extremely thin, and can completely adhere to the surface of the metal substrate without covering or obscuring the original mirror gloss and brushed texture of the watch case. At the same time, the precision holes that were sealed in the early stage will not be blocked by the coating, thus completely preserving the appearance and assembly precision of the watch case.

[0046] After the nano-coating deposition and strengthening process is completed, the vacuum pump 19 is turned off, allowing the internal cavity of the processing chamber 1 to slowly depressurize and return to normal pressure. Then, the staff refolds and resets the unfolded folding sealing plate 17, opens the cavity, and takes out the processed watch case. Finally, the entire automated processing process of pre-treatment of the watch case, including decontamination and stress relief, precision polishing, dynamic cleaning, and nano-surface strengthening, is completed in one integrated manner.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-faceted polishing fixture for a watch case, characterized in that, include, Processing box (1), a silicone mesh plate (23) is provided in the middle of the inner side of the processing box (1), a placement seat (25) is provided on the silicone mesh plate (23), and multiple processing chambers (26) for individually processing the watch case are provided at equal intervals on the placement seat (25). The front-end processing mechanism is located at the bottom of the processing box (1) and is used to perform front-end processing on the watch case after batch processing before polishing. The partitioned processing mechanism is located on the top of the processing box (1) and is used to perform partitioned polishing processing on the main plane of the watch case and the lugs and crown. A mobile cleaning mechanism is set on one side of the processing box (1) for performing mobile cleaning on the watch case being processed by the partition processing mechanism. The surface strengthening mechanism is located on the rear side of the processing box (1) and is used to strengthen the surface of the watch case after polishing.

2. The multi-faceted polishing fixture for a watch case according to claim 1, characterized in that, The front-end processing mechanism includes a base frame (2). The bottom of the processing box (1) is fixedly connected to the base frame (2). When processing the watch case, the processing box (1) is filled with alkaline cleaning water. The top center of the base frame (2) is provided with a heating heater (3) to heat the alkaline cleaning water inside the processing box (1). The bottom center of the base frame (2) is provided with a multi-stage filter box (5) and a circulation pump (4) on both sides. The circulation pump (4) draws the alkaline cleaning water and impurities in the processing box (1) into the multi-stage filter box (5) for filtration through a connecting pipe. The filtered alkaline cleaning water flows back into the processing box (1) through the connecting pipe.

3. The multi-faceted polishing fixture for a watch case according to claim 2, characterized in that, The front-end processing mechanism also includes an ultrasonic vibrating plate (24). Multiple ultrasonic vibrating plates (24) are equidistantly arranged at the bottom of the silicone mesh plate (23) along the inner wall of the processing box (1). One end of each ultrasonic vibrating plate (24) is connected to the corresponding position of the inner wall of the processing box (1). A frequency converter (6) is provided in the lower middle part of the front side of the processing box (1). The frequency converter (6) is connected to all the ultrasonic vibrating plates (24) in the processing box (1) through a sealed line, and independently controls the pulse frequency to achieve uniform vibration throughout the entire range. A hot air dryer (13) is slidably connected to the top of the processing box (1).

4. The multi-faceted polishing fixture for a watch case according to claim 1, characterized in that, The partition processing mechanism includes a connecting frame (11). The connecting frame (11) is fixedly connected to the top center of the processing box (1). A base (9) is provided on the top of the processing box (1). Cylinders (10) are provided on both sides of the middle of the connecting frame (11). The top of the rod of the cylinder (10) is connected to the corresponding position of the top of the base (9). An edge holder (38) for positioning and fixing the edge of the watch case is provided at the bottom of the processing cavity (26). A contour positioning seat (35) matching the internal shape of the watch case is provided at the bottom center of the processing cavity (26).

5. The multi-faceted polishing fixture for a watch case according to claim 4, characterized in that, The partition processing mechanism also includes a mounting base (8). Multiple sets of mounting bases (8) are equidistantly arranged at the bottom of the base (9). Multiple synchronous drivers (16) are equidistantly arranged at the top of the base (9). The synchronous drivers (16) drive the bottom of each set of mounting bases (8) to rotate synchronously. An inner grinding seat (31) is provided at the middle of the bottom of each mounting base (8). An outer grinding sleeve (30) is provided at the bottom of each mounting base (8) near the edge. A polishing part (32) is provided at the bottom of both the inner grinding seat (31) and the outer grinding sleeve (30).

6. The multi-faceted polishing fixture for a watch case according to claim 5, characterized in that, The partitioned processing mechanism also includes an air chamber (34). An air chamber (34) is provided in the middle of the inner side of the inner grinding seat (31) and the outer grinding sleeve (30). Multiple vertical guide ribs (33) are provided at equal intervals on the inner wall of the air chamber (34). Multiple electric proportional valves (12) are provided at equal intervals in the middle of the base (9). When the electric proportional valve (12) injects externally input gas into the air chamber (34) in the inner grinding seat (31) and the outer grinding sleeve (30), it sets the injection pressure of the different air chambers (34) to which it belongs. The air pressure in the air chamber (34) in the inner grinding seat (31) is medium pressure, and the air pressure in the air chamber (34) in the outer grinding sleeve (30) is low pressure.

7. The multi-faceted polishing fixture for a watch case according to claim 6, characterized in that, The mobile cleaning mechanism includes a strip conveyor (14). The strip conveyor (14) is provided on the upper part of one side of the treatment box (1). An inclined plate (27) is rotatably connected to one side of the inner wall of the treatment box (1). Multiple guide grooves (28) are equidistantly provided on the upper surface of the inclined plate (27). Multiple discharge grooves (39) are equidistantly provided on the placement seat (25). The discharge grooves (39) connect each treatment chamber (26). Multiple vibrators (29) are equidistantly provided on the middle part of the side of the base (9) away from the inclined plate (27). A three-way pipe (20) is provided at the bottom of the treatment box (1), and one end of the three-way pipe (20) is connected to the outlet of the circulating pump (4).

8. The multi-faceted polishing fixture for a watch case according to claim 1, characterized in that, The surface strengthening mechanism includes a folded sealing plate (17). The upper inner side of the processing box (1) is provided with a folded sealing plate (17) to seal the inside of the processing box (1). A vacuum pump (19) is provided in the lower rear side of the processing box (1). Electrode plates (36) are provided on both sides of the inner wall of the processing chamber (26). A high-frequency energy storage power supply (18) is provided on one side of the lower rear end of the processing box (1). A display controller (7) is provided on one side of the upper front end of the processing box (1).

9. The multi-faceted polishing fixture for a watch case according to claim 8, characterized in that, The surface strengthening mechanism also includes a precursor storage tank (22). The precursor storage tank (22) is provided on the other side of the lower middle part of the rear end of the processing box (1). A metering pump (15) is provided on one side of the middle part of the rear end of the processing box (1). A dispersion box (21) is provided in the middle of the rear side of the processing box (1). A vaporizer (37) is provided on the inner wall of the processing chamber (26). The vaporizer (37) is connected to the interior of the dispersion box (21) through the internal flow channel in the base (9). The precursor storage tank (22) is transported to the dispersion box (21) by the metering pump (15).

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