A watch case polishing device

Abstract

The utility model discloses a kind of watchcase surface polishing devices, including workbench and multiple watchcase bodies, the top outer wall and bottom outer wall of workbench are equipped with mounting bracket and limiting mechanism respectively, lifting mechanism and adsorption mechanism are equipped on mounting bracket, the limiting mechanism includes two first motors, the bottom outer wall of workbench is equipped with connecting frame and driven gear, the bottom of connecting frame is equipped with two first motors, the output shaft of first motor is fixedly connected with driving gear, the top of driving gear is connected with workbench by bearing, driving gear and driven gear are engaged with each other. The watchcase surface polishing device disclosed in the utility model has the effects of improving polishing efficiency, reducing the time of adjusting equipment, and flexibly adapting to various specifications and sizes of circular watchcase bodies.

Description

Technical Field

[0001] This utility model relates to the field of watch manufacturing technology, and in particular to a watch case surface polishing device. Background Technology

[0002] Polishing the watch case removes burrs, scratches, and oxide layers produced during the watch case manufacturing process, making the surface smoother and more aesthetically pleasing. At the same time, fine polishing can improve the watch case's corrosion resistance, reduce the risk of dirt adhesion and rust caused by surface roughness, and extend its service life. In addition, a smooth watch case surface can improve wearing comfort and prevent scratches to the skin or clothing.

[0003] While existing watch case polishing equipment has reduced the burden of manpower to some extent, its grinding head structure is often designed for watch cases of specific sizes, lacking flexibility. When the diameter of the round watch case to be processed changes, it is usually necessary to stop the machine to replace the matching grinding head or the entire set of fixtures, which seriously affects the continuity of production and increases equipment adjustment time and tool management costs. For example, a watch factory needs to polish various round watch cases with diameters ranging from 38 mm to 44 mm. Every time a new size is changed, the machine must be stopped and a matching fixed grinding head must be replaced. After polishing a batch of 40 mm watch cases, if a 42 mm watch case needs to be processed, the worker must manually disassemble the old grinding head, install the new grinding head, and recalibrate the equipment. This process not only takes tens of minutes, resulting in low production efficiency, but also the frequent changes of equipment can easily introduce errors, making it difficult to ensure the consistency of polishing quality between different batches of watch cases. Utility Model Content

[0004] This utility model discloses a watch case surface polishing device, which aims to solve the technical problems of existing watch case surface polishing equipment. Although it reduces the burden of manpower to a certain extent, its grinding head structure is often designed for watch cases of specific sizes and lacks flexibility. When the diameter of the round watch case to be processed changes, it is usually necessary to stop the machine to replace the matching grinding head or the whole set of fixtures, which seriously affects the continuity of production and increases the technical problems of equipment adjustment time and tool management costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A watch case polishing device includes a worktable and multiple watch case bodies. The top and bottom outer walls of the worktable are respectively provided with a mounting bracket and a limiting mechanism. The mounting bracket is provided with a lifting mechanism and a suction mechanism. The limiting mechanism includes two first motors. The bottom outer wall of the worktable is provided with a connecting bracket and a driven gear. The bottom of the connecting bracket is provided with two first motors. The output shaft of the first motor is fixedly connected to a drive gear. The top of the drive gear is connected to the worktable through a bearing. The drive gear and the driven gear mesh with each other. The top of the driven gear is provided with a limiting plate. The limiting plate has four equally spaced limiting openings. The top outer wall of the worktable is provided with limiting components near the four corners. The limiting components are slidably connected to the inner wall of the limiting openings.

[0006] By adopting the above technical solution, polishing efficiency can be improved, equipment adjustment time can be reduced, and various sizes of round watch cases can be flexibly adapted. Specifically, multiple watch cases to be polished are placed on the worktable, and then two first motors are started. They drive their respective drive gears to rotate. Since the two drive gears mesh with a driven gear at the same time, they jointly drive the driven gear and its limiting plate to rotate smoothly in the mounting groove of the worktable. When the limiting plate rotates, the inner wall of the limiting port pushes the slidably connected protrusion, thereby causing the polishing block to move radially back and forth along the slide groove on the fixed frame. This allows for adjustment according to the size of the watch case. Since the polishing surface is an arc that matches the shape of the watch case, the polishing surface can perfectly fit the side contour of the watch case. Then, driven by the lifting mechanism, the suction mechanism moves downward. The suction mechanism then firmly attaches and fixes the watch case and drives it to rotate in place, so that the polishing block performs all-round and uniform polishing on the side of the watch case, achieving highly efficient automated polishing.

[0007] As a further embodiment of this utility model: the limiting component includes four fixing frames, each of the two outer walls of the fixing frames is provided with a sliding groove, a grinding block is slidably connected to the sliding groove, and a protrusion is provided on the bottom outer wall of the grinding block, the protrusion being slidably connected to the inner wall of the limiting port.

[0008] By adopting the above technical solution, it is ensured that the polishing force is always perpendicular to and evenly distributed on the curved surface of the watch case, avoiding problems such as uneven polishing, sharp edges or excessive local wear caused by mismatched trajectory, thereby greatly improving the polishing accuracy and the consistency of product appearance.

[0009] As a further embodiment of this utility model: the adsorption mechanism includes a support plate, a second motor, and a cylinder. The support plate is located between the two limiting blocks. The second motor is fixedly installed on the bottom outer wall of the limiting plate. The output shaft of the second motor is fixedly connected to the support plate. A suction cup is provided on the bottom outer wall of the support plate. The suction cup has a hollow structure inside. The cylinder is located in the hollow cavity of the suction cup. A piston rod is provided at the output end of the cylinder. A piston is fixedly connected to the bottom end of the piston rod.

[0010] By adopting the above technical solution, in the initial state, the output shaft of the cylinder drives the piston rod to extend downward until the piston is flush with the bottom surface of the suction cup. When the suction cup moves down to the top surface of the watch case body synchronously and stably with the lifting mechanism, the cylinder starts to work. The output end of the cylinder drives the piston rod to move upward, and the piston also moves upward. Since the suction cup has a hollow structure, the upward movement of the piston increases the internal space of the suction cup and reduces the air pressure. Under the action of external atmospheric pressure, the watch case body is pressed tightly onto the suction cup, thereby realizing the adsorption function. Then, the second motor is started. The output shaft of the second motor drives the support plate to rotate, which in turn drives the suction cup, the cylinder inside the suction cup, the piston rod, the piston, and the watch case body below the suction cup to rotate synchronously. The side of the watch case body to be polished comes into contact with the polishing surface of the polishing block, thereby realizing fast and precise polishing.

[0011] In summary, this application includes at least one of the following beneficial technical effects: 1. The two first motors in the limiting mechanism drive the driven gear and the limiting plate to rotate, so that the limiting component drives the grinding block to move radially. It can quickly adapt to round watch cases of different sizes. In conjunction with the lifting mechanism and the adsorption mechanism, it drives the watch case to rotate in place, realizing all-round uniform grinding, improving grinding efficiency and reducing equipment adjustment time.

[0012] 2. The limiting component ensures that the polishing force is always vertical and evenly distributed on the curved surface of the watch case, avoiding uneven polishing, sharp edges, or excessive wear in some areas due to mismatched trajectories. This greatly improves the polishing accuracy and the consistency of the product appearance. In the adsorption mechanism, the cylinder drives the piston to change the air pressure inside the suction cup, so that the watch case is pressed tightly onto the suction cup under atmospheric pressure, making it fixed and stable. Then, the second motor drives the watch case to rotate synchronously, achieving fast and accurate polishing.

[0013] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a surface polishing device proposed in this utility model.

[0015] Figure 2This is a schematic diagram of the limiting mechanism of a surface polishing device proposed in this utility model.

[0016] Figure 3 This is a schematic diagram of the lifting mechanism and adsorption mechanism of a surface polishing device proposed in this utility model.

[0017] Figure 4 This is a schematic diagram of the grinding block structure of a surface grinding device proposed in this utility model.

[0018] In the attached diagram: 1. Workbench; 2. Mounting bracket; 3. Connecting bracket; 4. First motor; 5. Electric telescopic rod; 6. Limiting plate; 7. Slider; 8. Case body; 9. Fixing bracket; 10. Grinding block; 11. Driven gear; 12. Drive gear; 13. Limiting disc; 14. Limiting port; 15. Support plate; 16. Suction cup; 17. Cylinder; 18. Piston; 19. Second motor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figure 1 , Figure 2 and Figure 4 A watch case polishing device includes a worktable 1 and multiple watch case bodies 8. The top and bottom outer walls of the worktable 1 are respectively provided with a mounting frame 2 and a limiting mechanism. The mounting frame 2 is provided with a lifting mechanism and a suction mechanism. The limiting mechanism includes two first motors 4. The bottom outer wall of the worktable 1 is provided with a connecting frame 3 and a driven gear 11. The bottom of the connecting frame 3 is provided with two first motors 4. The output shaft of the first motor 4 is fixedly connected to a drive gear 12. The top of the drive gear 12 is connected to the worktable 1 through a bearing. The drive gear 12 and the driven gear 11 mesh with each other. The top of the driven gear 11 is provided with a limiting plate 13. The limiting plate 13 has four equally spaced limiting openings 14. The top outer wall of the worktable 1 is provided with limiting components near the four corners. The limiting components are slidably connected to the inner wall of the limiting openings 14.

[0021] It should be noted that the two first motors 4 have the same rotation direction and speed.

[0022] The limiting component includes four fixing brackets 9. Each fixing bracket 9 has a sliding groove on its two outer walls. A polishing block 10 is slidably connected to the sliding groove. The bottom outer wall of the polishing block 10 has a protrusion. The protrusion is slidably connected to the inner wall of the limiting port 14, ensuring that the polishing force is always perpendicular to and evenly distributed on the arc surface of the watch case body 8. This avoids problems such as uneven polishing, sharp edges, or excessive wear in some areas caused by mismatched trajectories, thereby greatly improving the polishing accuracy and the consistency of the product appearance.

[0023] In the specific implementation process, the polishing surface of the polishing block 10 near the watch case body 8 and the limiting port 14 are both arc-shaped structures. The arc-shaped polishing surface is in close contact with the side of the watch case body 8, and the arc-shaped limiting port 14 precisely controls the movement trajectory of the polishing block 10. At the same time, it can effectively prevent the watch case body 8 from moving slightly during the polishing process and improve the processing accuracy.

[0024] The workbench 1 has an installation opening and an installation groove at the center of the top outer wall. The limiting plate 13 is installed on the installation groove, and the watch case body 8 is located on the top outer wall of the limiting plate 13. The connection between the limiting plate 13 and the driven gear 11 passes through the inner wall of the installation opening. This arrangement allows the rotational power of the driven gear 11 to be directly transmitted to the limiting plate 13 located on the workbench 1. The inner wall of the installation groove constrains the side of the limiting plate 13, effectively preventing the limiting plate 13 from radially running or swaying during rotation.

[0025] It should be noted that the top surface of the limiting plate 13 is provided with a soft pad, which is designed to prevent wear when the bottom of the watch case body 8 comes into contact with the limiting plate 13.

[0026] Specifically, multiple watch case bodies 8 to be polished are placed on the worktable 1, and then two first motors 4 are started, which drive their respective drive gears 12 to rotate. Since the two drive gears 12 mesh with a driven gear 11 at the same time, they jointly drive the driven gear 11 and its limiting plate 13 to rotate smoothly in the mounting groove of the worktable 1. When the limiting plate 13 rotates, the inner wall of the limiting port 14 pushes the protrusion that is slidably connected to it, so that the polishing block 10 moves radially back and forth along the sliding groove on the fixed frame 9, and can be adjusted according to the specifications and dimensions of the watch case body 8. Since the polishing surface is an arc that matches the shape of the watch case body 8, the polishing surface can perfectly fit the side contour of the watch case body 8. Then, driven by the lifting mechanism, the suction mechanism moves downward, and then the watch case body 8 is firmly suctioned and fixed by the suction mechanism and rotated in place, so that the polishing block 10 performs all-round and uniform polishing on the side of the watch case body 8, realizing efficient automated polishing.

[0027] Reference Figure 1 and Figure 3In a preferred embodiment, the lifting mechanism includes an electric telescopic rod 5, which is fixedly installed on the top outer wall of the mounting frame 2. The movable end of the electric telescopic rod 5 is fixedly connected to a limiting plate 6. A connecting groove is provided on the inner wall of the opposite side of the mounting frame 2. The limiting plate 6 is slidably connected to the inner wall of the connecting groove. Two sliders 7 are provided on the bottom outer wall of the limiting plate 6. A limiting block is provided on one side outer wall of the slider 7. The movable end of the electric telescopic rod 5 extends downward and drives the limiting plate 6 to move downward. The limiting plate 6 and the sliders 7 slide in the connecting groove, thereby preventing the limiting plate 6 from rotating or shaking when subjected to force.

[0028] It should be noted that the slider 7 has an "L" shape and the limiting block has a "U" shape. The slider 7 has an "L" shape, and its vertical side is connected to the limiting plate 6. The horizontal side is used to support and connect the limiting block. The limiting block has a "U" shape, which can lock and position the support plate 15 from both sides and the bottom, thereby improving the stability of the device.

[0029] Reference Figure 1 and Figure 3 In a preferred embodiment, the adsorption mechanism includes a support plate 15, a second motor 19, and a cylinder 17. The support plate 15 is located between two limiting blocks. The second motor 19 is fixedly installed on the bottom outer wall of the limiting plate 6. The output shaft of the second motor 19 is fixedly connected to the support plate 15. The bottom outer wall of the support plate 15 is provided with a suction cup 16. The inside of the suction cup 16 is a hollow structure. The cylinder 17 is located in the hollow cavity of the suction cup 16. The output end of the cylinder 17 is provided with a piston rod. The bottom end of the piston rod is fixedly connected to a piston 18.

[0030] Specifically, in the initial state, the output shaft of cylinder 17 drives the piston rod to extend downward until the piston 18 is flush with the bottom surface of the suction cup 16. When the suction cup 16 moves down to the top surface of the watch case body 8 in sync with the lifting mechanism, cylinder 17 starts to work. The output end of cylinder 17 drives the piston rod to move upward, and piston 18 also moves upward. Since the suction cup 16 has a hollow structure, the upward movement of piston 18 increases the internal space of suction cup 16 and reduces the air pressure. Under the action of external atmospheric pressure, watch case body 8 is pressed tightly onto suction cup 16, thereby achieving the adsorption function. Then, the second motor 19 is started. The output shaft of the second motor 19 drives the support plate 15 to rotate, which in turn drives suction cup 16, cylinder 17 inside suction cup 16, piston rod, piston 18, and watch case body 8 below suction cup 16 to rotate synchronously. The side of watch case body 8 to be polished comes into contact with the polishing surface of polishing block 10, thereby achieving fast and precise polishing.

[0031] Working principle: In use, multiple watch case bodies 8 to be polished are placed on the worktable 1, and then the two first motors 4 are started, which drive their respective drive gears 12 to rotate. Since the two drive gears 12 mesh with a driven gear 11 at the same time, they jointly drive the driven gear 11 and its limiting plate 13 to rotate smoothly in the mounting groove of the worktable 1. When the limiting plate 13 rotates, the inner wall of the limiting port 14 pushes the slidably connected protrusion, thereby causing the polishing block 10 to reciprocate radially along the sliding groove on the fixed frame 9. This allows it to be adjusted according to the specifications and dimensions of the watch case body 8. Since the polishing surface is an arc shape that matches the shape of the watch case body 8, the polishing surface can perfectly fit the side contour of the watch case body 8. Then, driven by the lifting mechanism, the suction mechanism moves downward. The suction mechanism then firmly attaches and fixes the watch case body 8 and drives the watch case body 8 to rotate in place, so that the polishing block 10 performs all-round and uniform polishing on the side of the watch case body 8, realizing efficient automated polishing.

[0032] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A watch case surface polishing apparatus, comprising a worktable (1) and a plurality of watch case bodies (8), characterized in that, The top outer wall and bottom outer wall of the workbench (1) are respectively provided with a mounting frame (2) and a limiting mechanism. The mounting frame (2) is provided with a lifting mechanism and a suction mechanism. The limiting mechanism includes two first motors (4). The bottom outer wall of the workbench (1) is provided with a connecting frame (3) and a driven gear (11). The bottom of the connecting frame (3) is provided with two first motors (4). The output shaft of the first motor (4) is fixedly connected to a drive gear (12). The top of the drive gear (12) is connected to the workbench (1) through a bearing. The drive gear (12) meshes with the driven gear (11). The top of the driven gear (11) is provided with a limiting plate (13). The limiting plate (13) has four equally spaced limiting ports (14). The top outer wall of the workbench (1) is provided with limiting components near the four corners. The limiting components are slidably connected to the inner wall of the limiting ports (14).

2. The surface polishing device according to claim 1, characterized in that, The limiting component includes four fixing frames (9). Each fixing frame (9) has a sliding groove on its two outer walls. A grinding block (10) is slidably connected to the sliding groove. A protrusion is provided on the bottom outer wall of the grinding block (10). The protrusion is slidably connected to the inner wall of the limiting port (14).

3. The surface polishing device according to claim 2, characterized in that, The polishing surface of the polishing block (10) near the watch case body (8) and the limiting port (14) are both arc-shaped structures.

4. The surface polishing device according to claim 1, characterized in that, An installation port and a mounting groove are provided at the center of the top outer wall of the workbench (1). The limiting plate (13) is installed on the mounting groove. The watch case body (8) is located on the top outer wall of the limiting plate (13). The connection between the limiting plate (13) and the driven gear (11) passes through the inner wall of the installation port.

5. The surface polishing device according to claim 4, characterized in that, The lifting mechanism includes an electric telescopic rod (5), which is fixedly installed on the top outer wall of the mounting frame (2). The movable end of the electric telescopic rod (5) is fixedly connected to a limiting plate (6). A connecting groove is provided on the inner wall of the opposite side of the mounting frame (2). The limiting plate (6) is slidably connected to the inner wall of the connecting groove. Two sliders (7) are provided on the bottom outer wall of the limiting plate (6). A limiting block is provided on one side outer wall of the slider (7).

6. The surface polishing device according to claim 5, characterized in that, The slider (7) has an "L" shape and the limiting block has a "U" shape.

7. The surface polishing device according to claim 5, characterized in that, The adsorption mechanism includes a support plate (15), a second motor (19), and a cylinder (17). The support plate (15) is located between the two limiting blocks. The second motor (19) is fixedly installed on the bottom outer wall of the limiting plate (6). The output shaft of the second motor (19) is fixedly connected to the support plate (15). The bottom outer wall of the support plate (15) is provided with a suction cup (16). The inside of the suction cup (16) is a hollow structure. The cylinder (17) is located in the hollow cavity of the suction cup (16). The output end of the cylinder (17) is provided with a piston rod. The bottom end of the piston rod is fixedly connected with a piston (18).

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