A smart CNC grinding machine for stainless steel watch case blanks

By designing a detachable cleaning component and a height adjustment component on the grinder, the problems of inconvenient debris cleaning and poor thickness adaptability of the grinder are solved, achieving efficient cleaning and precise grinding, and improving production efficiency and finished product quality.

CN224939695UActive Publication Date: 2026-11-06SUN HUNG KI METAL PRODUCTS (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202522433197.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-17
Publication Date
2026-11-06
Estimated Expiration
2035-11-17

AI Technical Summary

Technical Problem

Existing polishing machines are inconvenient to disassemble and clean debris after polishing and lack height adjustment, resulting in difficult cleaning and poor polishing effect on dials of varying thicknesses.

Method used

A smart CNC polishing machine for stainless steel watch case blanks was designed, including a disassembly and cleaning component and a height adjustment component. The disassembly and cleaning component facilitates the removal of debris through a clamping plate and a pull plate structure, while the height adjustment component enables precise adjustment through a threaded rod and a height adjustment plate.

Benefits of technology

It achieves efficient cleaning of debris and precise polishing of watch cases of different thicknesses, improving production efficiency and finished product yield, and reducing manual cleaning costs and the difficulty of model changeover and debugging.

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Abstract

This utility model discloses an intelligent CNC polishing machine for stainless steel watch case blanks, including a worktable. The intelligent CNC polishing machine body is fixedly installed on the top of the worktable. A disassembly and cleaning component is slidably connected to one side of the worktable, and a height adjustment component is fixedly installed on the top of the disassembly and cleaning component. The disassembly and cleaning component includes a disassembly plate and a clamping plate. The disassembly plate is located on the top of the worktable, and the clamping plate is fixedly installed on both sides of the disassembly plate. This utility model relates to the field of stainless steel watch case processing technology. This intelligent CNC polishing machine for stainless steel watch case blanks, through its disassembly and cleaning component, can clean up polishing debris easily and conveniently, keeping the polishing area clean at all times. This prevents debris accumulation from scratching the watch case's mirror-like surface, reduces wear on internal transmission parts, extends the machine's service life, and reduces the time cost of frequent manual cleaning, making the processing flow more continuous.
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Description

Technical Field

[0001] This utility model relates to the field of stainless steel watch case processing technology, specifically an intelligent CNC grinding machine for stainless steel watch case blanks. Background Technology

[0002] Stainless steel watch case processing is a core application area in precision manufacturing. Intelligent CNC grinding machines, with their advantages of high precision and high consistency, have become key equipment in this process. The core processing requirements are extremely high surface precision, requiring a mirror-like finish without scratches, pitting, or other defects. Strict dimensional tolerances are also required, with the error in watch case diameter, thickness, and corner radius controlled within ±0.01mm. The machines also have strong material compatibility, as stainless steels such as 316L and 304 have high hardness, necessitating a balance between grinding efficiency and surface integrity.

[0003] The patent publication number "CN211029404U" discloses "This utility model relates to the field of grinding machine technology, and in particular to a low-energy intelligent CNC grinding machine, including a worktable, a support leg on the bottom side of the worktable, a first slide groove on the top side of the worktable, a slider inside the first slide groove, a lead screw on the inner wall of the first slide groove, an adjustment handle on one side of the worktable, a moving plate on the top side of the worktable, a transmission roller inside the moving plate, a transmission belt outside the transmission roller, a drive motor on the top side of the moving plate, a fixed plate on the top side of the worktable, a groove on the bottom side of the fixed plate, several rollers inside the groove, a support frame on one side of the worktable, a second slide groove on the top and bottom side of the support frame, a drive block inside the second slide groove, an electric telescopic rod on the bottom side of the drive block, and a pressure plate on the bottom side of the electric telescopic rod. This low-energy intelligent CNC grinding machine is easy to use, semi-automatic, low-energy, and reduces energy consumption."

[0004] In the aforementioned patent, the existing polishing machine is inconvenient to disassemble and clean the debris after the polishing work is completed, so cleaning it is very troublesome. Moreover, it does not have a good height adjustment function for polishing, so dials of different thicknesses are prone to poor polishing results.

[0005] To address these issues, this invention provides an intelligent CNC grinding machine for stainless steel watch case blanks. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an intelligent CNC grinding machine for stainless steel watch case blanks, which solves the problem that existing grinding machines are inconvenient to disassemble and clean up debris after grinding, making cleaning very troublesome.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel watch case blank intelligent CNC polishing machine, comprising a worktable, an intelligent CNC polishing machine body fixedly mounted on the top of the worktable, a disassembly and cleaning component slidably connected to one side of the worktable, and a height adjustment component fixedly mounted on the top of the disassembly and cleaning component; the disassembly and cleaning component includes a disassembly plate and a first clamping plate, the disassembly plate being disposed on the top of the worktable, the first clamping plate being fixedly mounted on both sides of the disassembly plate and engaging with the worktable, a connecting plate being fixedly mounted on one side of the disassembly plate, a fixing frame being fixedly mounted on the bottom of the worktable, a sliding rod being slidably connected to the bottom of the fixing frame, a spring being sleeved on the side wall of the sliding rod, a lifting plate being fixedly connected to the top of the sliding rod, and a clamping rod being fixedly connected to the top of the lifting plate and engaging with the connecting plate.

[0008] Furthermore, the disassembly and cleaning assembly also includes a pull plate, which is fixedly connected to the bottom end of the slide bar.

[0009] By adopting the above technical solution, the cleaning components can be easily pulled, improving the flexibility and efficiency of debris removal.

[0010] Furthermore, the height adjustment assembly includes a second fixed frame and a threaded rod. The second fixed frame is fixedly installed on the top of the disassembly plate. The threaded rod is connected to the inner side wall of the second fixed frame via a bearing. A rectangular plate is threadedly connected to the side wall of the threaded rod. A height adjustment plate is fixedly installed on one side of the rectangular plate. A hollow rod is fixedly connected to the bottom of the height adjustment plate. A connecting rod is fixedly connected to the top of the disassembly plate. The hollow rod and the connecting rod are slidably connected.

[0011] By adopting the above technical solution, the height adjustment is stable and precise, effectively ensuring the precision requirements of the watch case polishing.

[0012] Furthermore, the height adjustment assembly also includes a second locking plate, which is fixedly installed on the top of the height adjustment plate, and the watch case body is snapped onto the side wall of the second locking plate.

[0013] By adopting the above technical solution, the watch case can be quickly clamped, avoiding displacement during polishing and improving processing stability.

[0014] Furthermore, the height adjustment assembly also includes a knob, which is fixedly connected to the top of the threaded rod.

[0015] By adopting the above technical solution, manual adjustment is convenient and labor-saving, reducing the operational threshold for height adjustment.

[0016] Furthermore, collection boxes are fixedly installed on both sides of the workbench, and the two collection boxes are arranged opposite to each other.

[0017] By adopting the above technical solution, scattered debris can be collected in a centralized manner, reducing the amount of cleaning work and maintaining a clean environment.

[0018] Furthermore, a support block is provided at the bottom of the workbench, and the bottom of the support block is treated with an anti-slip coating.

[0019] By adopting the above technical solution, the stability of equipment placement is enhanced, and the shaking during grinding is avoided from affecting the processing accuracy.

[0020] Beneficial effects

[0021] This utility model provides an intelligent CNC grinding machine for stainless steel watch case blanks. Compared with the prior art, it has the following advantages:

[0022] 1. This intelligent CNC grinding machine for stainless steel watch cases can clean up grinding debris through its disassembly and cleaning components. The cleaning is simple and convenient, keeping the grinding area clean at all times. This prevents debris from accumulating and scratching the watch case's mirror-like surface. It also reduces wear on internal transmission parts, extends the machine's lifespan, and reduces the time cost of frequent manual cleaning. This makes the processing flow more seamless and further improves batch production efficiency and finished product yield.

[0023] 2. This intelligent CNC grinding machine for stainless steel watch case blanks features a height adjustment component, allowing for height adjustment and ensuring excellent grinding results for watch cases of any thickness. This significantly improves the machine's adaptability, enabling it to process watch blanks of various specifications without the need to change special fixtures or equipment. It also ensures uniform grinding pressure for watch cases of different thicknesses, effectively avoiding the problems of deformation in thin watch cases and incomplete grinding in thick watch cases. This further improves the surface precision consistency of mass production and reduces changeover and debugging costs. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0027] Figure 3 This is a rear view of the overall structure of this utility model;

[0028] Figure 4 This is a utility model Figure 3 Enlarged view of the structure at point B.

[0029] In the diagram: 1. Workbench; 2. Intelligent CNC grinding machine body; 3. Disassembly and cleaning assembly; 31. Disassembly plate; 32. First clamping plate; 33. Connecting plate; 34. First fixing frame; 35. Slide rod; 36. Spring; 37. Lifting plate; 38. Clamping rod; 39. Pull plate; 4. Height adjustment assembly; 41. Second fixing frame; 42. Threaded rod; 43. Rectangular plate; 44. Height adjustment plate; 45. Hollow rod; 46. Connecting rod; 47. Second clamping plate; 48. Knob; 5. Case body; 6. Collection box; 7. Support block. Detailed Implementation

[0030] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0031] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] Reference Figures 1 to 4 This application provides an intelligent CNC polishing machine for stainless steel watch case blanks, including a worktable 1. An intelligent CNC polishing machine body 2 is fixedly installed on the top of the worktable 1. A disassembly and cleaning assembly 3 is slidably connected to one side of the worktable 1. A height adjustment assembly 4 is fixedly installed on the top of the disassembly and cleaning assembly 3. The disassembly and cleaning assembly 3 includes a disassembly plate 31 and a clamping plate 32. The disassembly plate 31 is disposed on the top of the worktable 1, and the clamping plate 32 is fixedly installed on both sides of the disassembly plate 31. The worktables 1 are interlocked. A connecting plate 33 is fixedly installed on one side of the disassembly plate 31. A fixing frame 34 is fixedly installed at the bottom of the worktable 1. A slide rod 35 is slidably connected to the bottom of the fixing frame 34. A spring 36 is sleeved on the side wall of the slide rod 35. A lifting plate 37 is fixedly connected to the top of the slide rod 35. A locking rod 38 is fixedly connected to the top of the lifting plate 37. The locking rod 38 is interlocked with the connecting plate 33. The disassembly and cleaning assembly 3 also includes a pull plate 39, which is fixedly connected to the bottom end of the slide rod 35.

[0033] In this embodiment, before grinding, the disassembly cleaning component 3 is disassembled and the clamping plate 32 is engaged with the worktable 1 to quickly fix the disassembly plate 31, providing a stable foundation for subsequent components. When the grinding debris accumulates, the pull plate 39 is pulled down, causing the slide rod 35 to slide along the fixing frame 34. This causes the slide rod 35 to move the lifting plate 37 down and compress the spring 36, causing the clamping rod 38 to disengage from the connecting plate 33, releasing the disassembly plate 31 from its fixation. The disassembly plate 31 and the top component are then removed. After cleaning the processing area and component debris, the components are reset. The pull plate 39 is released, and the spring 36 pushes the clamping rod 38 to re-engage, completing the fixation. No complicated tools are required, achieving efficient debris cleaning and avoiding scratches on the casing or affecting the equipment's accuracy.

[0034] Reference Figures 1 to 4 In one aspect of this embodiment, the height adjustment component 4 includes a second fixed frame 41 and a threaded rod 42. The second fixed frame 41 is fixedly installed on the top of the disassembly plate 31. The threaded rod 42 is connected to the inner side wall of the second fixed frame 41 via a bearing. A rectangular plate 43 is threadedly connected to the side wall of the threaded rod 42. A height adjustment plate 44 is fixedly installed on one side of the rectangular plate 43. A hollow rod 45 is fixedly connected to the bottom of the height adjustment plate 44. A connecting rod 46 is fixedly connected to the top of the disassembly plate 31. The hollow rod 45 and the connecting rod 46 are slidably connected. The height adjustment component 4 also includes a second locking plate 47, which is fixedly installed on the top of the height adjustment plate 44. A watch case body 5 is snapped onto the side wall of the second locking plate 47. The height adjustment component 4 also includes a knob 48, which is fixedly connected to the top of the threaded rod 42. Collection boxes 6 are fixedly installed on both sides of the workbench 1, and the two collection boxes 6 are arranged opposite to each other. A support block 7 is provided at the bottom of the workbench 1, and the bottom of the support block 7 is treated with anti-slip treatment.

[0035] In this embodiment, based on the thickness of the watch case body 5, the knob 48 of the height adjustment component 4 is rotated, causing the threaded rod 42 to rotate within the bearing of the fixed frame 41. Through threaded transmission, the rectangular plate 43 drives the height adjustment plate 44 to rise and fall. The hollow rod 45 slides along the connecting rod 46 to ensure smooth adjustment. The watch case body 5 is then snapped into the clamping plate 47 for fixation. The intelligent CNC grinding machine body 2 is started to grind according to the preset program. The anti-slip support block 7 at the bottom of the worktable 1 enhances stability and avoids vibration affecting accuracy, achieving precise and efficient grinding of watch cases of different thicknesses. In this case, the thread helix angle is less than or equal to the equivalent friction angle.

[0036] Working principle: Before grinding, the disassembly cleaning component 3 is disassembled and the clamping plate 32 is engaged with the worktable 1 to quickly fix the disassembly plate 31, providing a stable foundation for subsequent components. When the grinding debris accumulates, the pull plate 39 is pulled down, which drives the slide rod 35 to slide along the fixed frame 34. This causes the slide rod 35 to move the lifting plate 37 down and compress the spring 36, causing the clamping rod 38 to disengage from the connecting plate 33, releasing the disassembly plate 31 from the fixation. The disassembly plate 31 and the top component are then pulled out. After cleaning the processing area and component debris, the components are reset. The pull plate 39 is released, and the spring 36 pushes the clamping rod 38 to re-engage, completing the fixation. No complicated tools are required, achieving efficient debris cleaning and avoiding scratches on the casing or affecting the accuracy of the equipment.

[0037] Based on the thickness of the watch case body 5, rotate the knob 48 of the height adjustment component 4 to drive the threaded rod 42 to rotate within the bearing of the fixed frame 41. Through threaded transmission, the rectangular plate 43 drives the height adjustment plate 44 to rise and fall. The hollow rod 45 slides along the connecting rod 46 to ensure smooth adjustment. The watch case body 5 is then snapped into the clamping plate 47 for fixation. The intelligent CNC grinding machine body 2 is started to grind according to the preset program. The anti-slip support block 7 at the bottom of the worktable 1 enhances stability and avoids vibration affecting accuracy, thus achieving precise and efficient grinding of watch cases of different thicknesses.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A CNC grinding machine for stainless steel watch case blanks, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly installed with a smart CNC grinding machine body (2), and a disassembly and cleaning component (3) is slidably connected to one side of the workbench (1). A height adjustment component (4) is fixedly installed on the top of the disassembly and cleaning component (3). The disassembly cleaning component (3) includes a disassembly plate (31) and a first clamping plate (32). The disassembly plate (31) is set on the top of the workbench (1). The first clamping plate (32) is fixedly installed on both sides of the disassembly plate (31). The first clamping plate (32) is clamped to the workbench (1). A connecting plate (33) is fixedly installed on one side of the disassembly plate (31). A first fixing frame (34) is fixedly installed at the bottom of the workbench (1). A slide rod (35) is slidably connected to the bottom of the first fixing frame (34). A spring (36) is sleeved on the side wall of the slide rod (35). A lifting plate (37) is fixedly connected to the top of the slide rod (35). A clamping rod (38) is fixedly connected to the top of the lifting plate (37). The clamping rod (38) is clamped to the connecting plate (33).

2. The intelligent CNC grinding machine for stainless steel watch case blanks according to claim 1, characterized in that: The disassembly and cleaning assembly (3) also includes a pull plate (39) which is fixedly connected to the bottom end of the slide bar (35).

3. The intelligent CNC grinding machine for stainless steel watch case blanks according to claim 1, characterized in that: The height adjustment assembly (4) includes a fixed frame (41) and a threaded rod (42). The fixed frame (41) is fixedly installed on the top of the disassembly plate (31). The threaded rod (42) is connected to the inner side wall of the fixed frame (41) by a bearing. A rectangular plate (43) is threadedly connected to the side wall of the threaded rod (42). A height adjustment plate (44) is fixedly installed on one side of the rectangular plate (43). A hollow rod (45) is fixedly connected to the bottom of the height adjustment plate (44). A connecting rod (46) is fixedly connected to the top of the disassembly plate (31). The hollow rod (45) and the connecting rod (46) are slidably connected.

4. The intelligent CNC grinding machine for stainless steel watch case blanks according to claim 3, characterized in that: The height adjustment assembly (4) also includes a second locking plate (47), which is fixedly installed on the top of the height adjustment plate (44), and the watch case body (5) is snapped onto the side wall of the second locking plate (47).

5. The intelligent CNC grinding machine for stainless steel watch case blanks according to claim 4, characterized in that: The height adjustment assembly (4) also includes a knob (48) which is fixedly connected to the top of the threaded rod (42).

6. The intelligent CNC grinding machine for stainless steel watch case blanks according to claim 1, characterized in that: Collection boxes (6) are fixedly installed on both sides of the workbench (1), and the two collection boxes (6) are arranged opposite to each other.

7. The intelligent CNC grinding machine for stainless steel watch case blanks according to claim 1, characterized in that: The bottom of the workbench (1) is provided with a support block (7), and the bottom of the support block (7) is treated with anti-slip treatment.

Citation Information

Patent Citations

  • Low-energy-consumption intelligent numerical control grinding machine

    CN211029404U