Double-wheel watch case polishing mechanism

Abstract

The utility model discloses a double -wheeled watchcase polishing mechanism, including frame, and be located first emery wheel, second emery wheel, drive arrangement on the frame, and first emery wheel and second emery wheel are arranged in parallel and interval along the radial direction, and the central axis of first emery wheel and the central axis of second emery wheel are parallel, and the side of axial direction of first emery wheel has first polishing face, and the side of axial direction of second emery wheel close to first polishing face has second polishing face, and drive arrangement drives first emery wheel and second emery wheel rotation, the rotation direction of first emery wheel and second emery wheel is opposite, the utility model discloses can polish and get special texture on watchcase, and the appearance effect is better, can satisfy the demand to special texture.

Description

Technical Field

[0001] This utility model relates to the technical field of watch case polishing equipment, specifically to a dual-wheel watch case polishing mechanism. Background Technology

[0002] The watch case (also known as the bezel) is a component of the watch casing, usually made of metal. It serves to decorate and protect the internal parts of the watch. During production, the outer surface of the watch case needs to be polished to create a sandblasted texture, giving the watch case a hazy appearance.

[0003] Currently, watch cases are polished using a watch case polishing device. This device mainly consists of a clamping mechanism and a polishing mechanism. The clamping mechanism is used to clamp the watch case, while the polishing mechanism has a grinding wheel and a motor. The motor drives the grinding wheel to rotate, causing the circumferential arc-shaped polishing surface of the grinding wheel to polish the watch case. However, when polishing the watch case, the texture obtained by polishing the arc-shaped polishing surface is relatively ordinary, and the appearance effect is not good, which cannot meet the needs of special textures. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a dual-wheel watch case polishing mechanism, which can polish special textures on watch cases, resulting in a better appearance and meeting the demand for special textures.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dual-wheel watch case polishing mechanism, characterized in that it includes a frame, and a first grinding wheel, a second grinding wheel, and a driving device disposed on the frame;

[0007] The first grinding wheel and the second grinding wheel are arranged side by side in the radial direction with a distance between them. The central axis of the first grinding wheel and the central axis of the second grinding wheel are parallel. The first grinding wheel has a first grinding surface on one side in the axial direction, and the second grinding wheel has a second grinding surface on the side in the axial direction close to the first grinding surface. The driving device drives the first grinding wheel and the second grinding wheel to rotate, and the rotation directions of the first grinding wheel and the second grinding wheel are opposite.

[0008] By setting a first grinding wheel and a second grinding wheel to be arranged side by side in the radial direction with a spacing between them, the central axes of the first grinding wheel and the second grinding wheel are parallel. The first grinding wheel has a first polishing surface on one side in the axial direction, and the second grinding wheel has a second polishing surface on the side in the axial direction close to the first polishing surface. During polishing, the first grinding wheel and the second grinding wheel are driven to rotate in opposite directions by a driving device. The first grinding wheel first polishes the watch case, and then the second grinding wheel polishes the first polished area on the watch case a second time. The first polishing and the second polishing respectively form textures with opposite directions. The combination of the two textures with opposite directions forms a special texture with a better appearance, thus meeting the demand for special textures.

[0009] In one embodiment, the drive device has a rotary motor and a transmission assembly, wherein the rotary motor drives a first grinding wheel and a second grinding wheel to rotate synchronously in opposite directions via the transmission assembly.

[0010] In one embodiment, the transmission assembly has a transmission shaft, a first rotating shaft, and a second rotating shaft, all of which are rotatably connected to the frame. The rotary motor drives the transmission shaft to rotate. A first driving bevel gear and a second driving bevel gear are respectively provided at both ends of the transmission shaft. A first driven bevel gear meshing with the first driving bevel gear is provided on the first rotating shaft. A second driven bevel gear meshing with the second driving bevel gear is provided on the second rotating shaft. The first grinding wheel is connected to the first rotating shaft, and the second grinding wheel is connected to the second rotating shaft.

[0011] In one embodiment, the frame is provided with a detachable housing, and the transmission assembly is mounted on the housing.

[0012] In one embodiment, the housing is provided with a first accommodating cavity and a second accommodating cavity, the two ends of the transmission shaft extend into the first accommodating cavity and the second accommodating cavity respectively, the first rotating shaft passes through the first accommodating cavity, the second rotating shaft passes through the second accommodating cavity, the first driving bevel gear and the first driven bevel gear are both disposed in the first accommodating cavity, and the second driving bevel gear and the second driven bevel gear are both disposed in the second accommodating cavity.

[0013] In one embodiment, a mounting hole is connected between the first accommodating cavity and the second accommodating cavity, the drive shaft is rotatably disposed in the mounting hole, the opposite side walls of the first accommodating cavity are provided with first through holes, the first rotating shaft is rotatably disposed in the first through holes, the opposite side walls of the second accommodating cavity are provided with second through holes, and the second rotating shaft is rotatably disposed in the second through holes.

[0014] In one embodiment, the sidewalls of the first accommodating cavity and / or the second accommodating cavity are provided with clearance holes facing the mounting hole, and the drive shaft can be inserted into the mounting hole or removed from the clearance hole.

[0015] In one embodiment, the clearance hole is covered with a side cover, and the upper ends of the first and second accommodating cavities are open to form openings, with a top cover at the openings.

[0016] In one embodiment, the drive shaft is provided with a drive wheel, and the drive wheel is connected to the main shaft of the rotary motor through a transmission component.

[0017] In one embodiment, the central axis of the first grinding wheel and the central axis of the second grinding wheel are both parallel to the horizontal plane. An airflow gap is formed between the peripheral sidewalls of the first grinding wheel and the peripheral sidewalls of the second grinding wheel. The inlet of the airflow gap faces upward and the outlet of the airflow gap faces downward. The first grinding wheel is located on the left side of the airflow gap, and the second grinding wheel is located on the right side of the airflow gap. During operation, the first grinding wheel rotates clockwise and the second grinding wheel rotates counterclockwise.

[0018] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, by setting a first grinding wheel and a second grinding wheel to be arranged side by side in the radial direction with a spacing, the central axes of the first grinding wheel and the central axes of the second grinding wheel are parallel. The first grinding wheel has a first grinding surface on one side in the axial direction, and the second grinding wheel has a second grinding surface on the side in the axial direction close to the first grinding surface. During grinding, the first grinding wheel and the second grinding wheel are driven to rotate in opposite directions by a driving device. The first grinding wheel first grinds the watch case, and then the second grinding wheel grinds the first grinding position on the watch case a second time. The first grinding and the second grinding form textures with opposite directions. The combination of the two textures with opposite directions forms a special texture with better appearance, thereby meeting the demand for special textures.

[0019] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the assembly of the first grinding wheel, the second grinding wheel, the transmission assembly, and the housing according to an embodiment of the present utility model;

[0022] Figure 3 yes Figure 2 A structural diagram with the top cover removed;

[0023] Figure 4 yes Figure 2 A top view of the cross-section;

[0024] Figure 5 yes Figure 2 A front view illustration.

[0025] Explanation of reference numerals in the attached diagram:

[0026] 10-Frame, 11-First grinding wheel, 111-First grinding area, 12-Second grinding wheel, 121-Second grinding area, 13-Airflow gap, 131-Inlet, 132-Outlet, 20-Drive device, 21-Rotary motor, 22-Transmission assembly, 23-Drive shaft, 231-First driving bevel gear, 232-Second driving bevel gear, 233-Transmission wheel, 24-First rotating shaft, 241-First driven bevel gear, 242-Step, 243-Nut, 25-Second rotating shaft, 251-Second driven bevel gear, 26-Bearing, 27-Transmission component, 30-Box, 31-First accommodating cavity, 311-Allowing hole, 32-Second accommodating cavity, 33-Mounting hole, 34-First through hole, 35-Second through hole, 36-Side cover, 37-Top cover, 38-Protective cover, 39-Notch. Detailed Implementation

[0027] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] like Figure 1-5 As shown, this utility model discloses a dual-wheel watch case polishing mechanism, including a frame 10, a first grinding wheel 11, a second grinding wheel 12, and a driving device 20 disposed on the frame 10.

[0030] The first grinding wheel 11 and the second grinding wheel 12 are arranged side by side and spaced apart in the radial direction. The central axis of the first grinding wheel 11 and the central axis of the second grinding wheel 12 are parallel. The central axis of the first grinding wheel 11 and the central axis of the second grinding wheel 12 are not perpendicular to the horizontal plane. The first grinding wheel 11 has a first grinding surface on one side in the axial direction, and the second grinding wheel 12 has a second grinding surface on the side in the axial direction close to the first grinding surface. Both the first grinding surface and the second grinding surface are planar. The driving device 20 drives the first grinding wheel 11 and the second grinding wheel 12 to rotate. The rotation directions of the first grinding wheel 11 and the second grinding wheel 12 are opposite. One of the first grinding wheel 11 and the second grinding wheel 12 is a coarse grinding wheel, and the other is a fine grinding wheel.

[0031] The driving device 20 has a rotary motor 21 and a transmission assembly 22. The rotary motor 21 drives the first grinding wheel 11 and the second grinding wheel 12 to rotate synchronously in opposite directions through the transmission assembly 22. By setting the transmission assembly 22, the first grinding wheel 11 and the second grinding wheel 12 can be rotated synchronously in opposite directions by combining a single rotary motor 21 with the transmission assembly 22. The first grinding wheel 11 and the second grinding wheel 12 rotate at the same speed, making the special texture obtained by grinding more uniform.

[0032] The transmission assembly 22 has a transmission shaft 23, a first rotating shaft 24, and a second rotating shaft 25, all of which are rotatably connected to the frame 10. The first rotating shaft 24 and the second rotating shaft 25 are both perpendicular to the transmission shaft 23. The rotary motor 21 drives the transmission shaft 23 to rotate. The two ends of the transmission shaft 23 are respectively provided with a first driving bevel gear 231 and a second driving bevel gear 232. The first rotating shaft 24 is provided with a first driven bevel gear 241 that meshes with the first driving bevel gear 231. The second rotating shaft 25 is provided with a second driven bevel gear 251 that meshes with the second driving bevel gear 232. The first grinding wheel 11 is connected to one end of the first rotating shaft 24, and the second grinding wheel 12 is connected to one end of the second rotating shaft 25.

[0033] The frame 10 is provided with a detachable housing 30, which is detachably connected to the frame 10 by screws. The transmission component 22 is installed on the housing 30. It can be understood that the housing 30 can also be detachably installed on the frame 10 by clamping. By setting a detachable housing 30, during assembly, the transmission component 22 is first installed on the housing 30, and then the housing 30 is installed on the frame 10. During disassembly, the housing 30 is removed first, and then the transmission component 22 is removed, thus making traditional assembly, installation and disassembly more convenient.

[0034] The housing 30 has a first accommodating cavity 31 and a second accommodating cavity 32. The two ends of the transmission shaft 23 extend into the first accommodating cavity 31 and the second accommodating cavity 32, respectively. The first rotating shaft 24 passes through the first accommodating cavity 31, and the second rotating shaft 25 passes through the second accommodating cavity 32. The first driving bevel gear 231 and the first driven bevel gear 241 are both located in the first accommodating cavity 31, and the second driving bevel gear 232 and the second driven bevel gear 251 are both located in the second accommodating cavity 32. By setting the first driving bevel gear 231 and the first driven bevel gear 241 in the first accommodating cavity 31 and the second driving bevel gear 232 and the second driven bevel gear 251 in the second accommodating cavity 32, the structure is compact, so that the combination of the housing 30 and the transmission assembly 22 occupies little space.

[0035] A mounting hole 33 connects the first accommodating cavity 31 and the second accommodating cavity 32. The drive shaft 23 is rotatably disposed in the mounting hole 33 via two bearings 26. The opposite side walls of the first accommodating cavity 31 are provided with first through holes 34. The first rotating shaft 24 is rotatably disposed in the first through holes 34 via bearings 26. Each first through hole 34 has a bearing 26. The opposite side walls of the second accommodating cavity 32 are provided with second through holes 35. The second rotating shaft 25 is rotatably disposed in the second through holes 35 via bearings 26. Each second through hole 35 has a bearing 26.

[0036] The sidewalls of the first accommodating cavity 31 and / or the second accommodating cavity 32 are provided with clearance holes 311 that are directly opposite the mounting hole 33. The drive shaft 23 can be inserted into the mounting hole 33 through the clearance hole 311 or removed from the clearance hole 311.

[0037] A side cover 36 is provided at the clearance hole 311. The upper ends of the first accommodating cavity 31 and the second accommodating cavity 32 are open to form an opening, and a top cover 37 is provided at the opening. By providing the side cover 36 and the top cover 37, the dustproof and waterproof effects are achieved, and it is also beneficial to maintain the first driving bevel gear 231, the first driven bevel gear 241, the second driving bevel gear 232 and the second driven bevel gear 251.

[0038] The first rotating shaft 24 has a step 242 on its circumferential outer wall near the first grinding wheel 11. The step 242 abuts against the inner ring of the adjacent bearing 26. The end of the first rotating shaft 24 away from the first grinding wheel 11 passes through the first through hole 34 and is threaded with a nut 243. The nut 243 abuts against the inner ring of the adjacent bearing 26. The outer ring of the bearing 26 abuts against the housing 30. The nut 243 is covered with a protective cover 38. The protective cover 38 is detachably connected to the housing 30 by screws. The installation methods of the transmission shaft 23 and the second rotating shaft 25 are the same as those of the first rotating shaft 24, so they will not be described again.

[0039] The drive shaft 23 is provided with a drive wheel 233, which is connected to the main shaft of the rotary motor 21 through a transmission component 27. Specifically, the drive wheel 233 is a pulley, and the transmission component 27 is a drive belt. The housing 30 is provided with a notch 39, which is located between the first accommodating cavity 31 and the second accommodating cavity 32. The notch 39 is connected to the mounting hole 33, and the conventional wheel is rotatably disposed in the notch 39.

[0040] The central axis of the first grinding wheel 11 and the central axis of the second grinding wheel 12 are both parallel to the horizontal plane. An airflow gap 13 is formed between the peripheral sidewalls of the first grinding wheel 11 and the peripheral sidewalls of the second grinding wheel 12. The inlet 131 of the airflow gap 13 faces upward, and the outlet 132 of the airflow gap 13 faces downward. The first grinding wheel 11 is located on the left side of the airflow gap 13, and the second grinding wheel 12 is located on the right side of the airflow gap 13. During operation, the first grinding wheel 11 rotates clockwise, and the second grinding wheel 12 rotates counterclockwise. By setting the inlet 131 of the airflow gap 13 to face upward and the outlet 132 to face downward, and the first grinding wheel 11 and the second grinding wheel 12 to be located on the left and right sides of the airflow gap 13 respectively, during operation, the first grinding wheel 11 rotates clockwise, and the second grinding wheel 12 rotates counterclockwise. The air in the airflow gap 13 flows downward, thereby driving the nearby air and dust to flow downward, which is beneficial for dust to fall.

[0041] The width b of the airflow gap 13 is 5mm-20mm, preferably 10mm-15mm.

[0042] like Figure 5 As shown, the first grinding surface between the central axis of the first grinding wheel 11 and the air flow gap 13 is the first grinding area 111, and the second grinding surface between the central axis of the second grinding wheel 12 and the air flow gap 13 is the second grinding area 121. When grinding the watch case, the watch case is first ground in the first grinding area 111 and then transferred to the second grinding area 121 for grinding.

[0043] It should be noted that the rotary motor 21 and the transmission shaft 23 of this utility model are connected by indirect transmission, or they can be connected by direct transmission. This utility model uses a single rotary motor 21 as a power source, or it can use two rotary motors 21 to drive the first grinding wheel 11 and the second grinding wheel 12 to rotate synchronously in opposite directions. The transmission wheel 233 can also be a synchronous belt pulley or a sprocket, and the corresponding transmission component 27 is a synchronous belt or a chain. Both the first grinding wheel 11 and the second grinding wheel 12 can be fine grinding wheels.

[0044] In summary, this utility model, by setting a first grinding wheel 11 and a second grinding wheel 12 side by side in the radial direction with a spacing between them, with the central axis of the first grinding wheel 11 and the central axis of the second grinding wheel 12 parallel, and a first grinding surface on one side of the first grinding wheel 11 in the axial direction, and a second grinding surface on the side of the second grinding wheel 12 near the first grinding surface in the axial direction, during grinding, the first grinding wheel 11 and the second grinding wheel 12 are driven to rotate in opposite directions by the driving device 20. The first grinding wheel 11 first grinds the watch case, and then the second grinding wheel 12 grinds the first grinding position on the watch case a second time. The first grinding and the second grinding form textures with opposite directions, and the combination of the two textures with opposite directions forms a special texture with a better appearance, thus meeting the demand for special textures; in addition, the effect of special textures is best when grinding the flat surface of the watch case.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the actual technical aspects of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A double wheel type watch case polishing mechanism, characterized by, Includes a frame, and a first grinding wheel, a second grinding wheel, and a drive unit mounted on the frame; The first grinding wheel and the second grinding wheel are arranged side by side in the radial direction with a distance between them. The central axis of the first grinding wheel and the central axis of the second grinding wheel are parallel. The first grinding wheel has a first grinding surface on one side in the axial direction, and the second grinding wheel has a second grinding surface on the side in the axial direction close to the first grinding surface. The driving device drives the first grinding wheel and the second grinding wheel to rotate, and the rotation directions of the first grinding wheel and the second grinding wheel are opposite.

2. The double-wheeled watch case polishing mechanism of claim 1, wherein, The driving device has a rotary motor and a transmission assembly. The rotary motor drives the first grinding wheel and the second grinding wheel to rotate synchronously in opposite directions through the transmission assembly.

3. The double-wheeled watch case polishing mechanism of claim 2, wherein, The transmission assembly has a transmission shaft, a first rotating shaft, and a second rotating shaft, all of which are rotatably connected to the frame. The rotary motor drives the transmission shaft to rotate. The two ends of the transmission shaft are respectively provided with a first driving bevel gear and a second driving bevel gear. The first rotating shaft is provided with a first driven bevel gear that meshes with the first driving bevel gear. The second rotating shaft is provided with a second driven bevel gear that meshes with the second driving bevel gear. The first grinding wheel is connected to the first rotating shaft, and the second grinding wheel is connected to the second rotating shaft.

4. The dual-wheel watch case polishing mechanism according to claim 3, characterized in that, The frame is equipped with a detachable housing, and the transmission assembly is mounted on the housing.

5. The double-wheeled watch case polishing mechanism of claim 4, wherein, The housing is provided with a first accommodating cavity and a second accommodating cavity. The two ends of the transmission shaft extend into the first accommodating cavity and the second accommodating cavity respectively. The first rotating shaft passes through the first accommodating cavity, and the second rotating shaft passes through the second accommodating cavity. The first driving bevel gear and the first driven bevel gear are both located in the first accommodating cavity, and the second driving bevel gear and the second driven bevel gear are both located in the second accommodating cavity.

6. The double-wheeled watch case polishing mechanism of claim 5, wherein, The first accommodating cavity and the second accommodating cavity are connected by a mounting hole. The drive shaft is rotatably disposed in the mounting hole. The opposite side walls of the first accommodating cavity are provided with first through holes, and the first rotating shaft is rotatably disposed in the first through holes. The opposite side walls of the second accommodating cavity are provided with second through holes, and the second rotating shaft is rotatably disposed in the second through holes.

7. The double-wheeled watch case polishing mechanism of claim 6, wherein, The sidewalls of the first accommodating cavity and / or the second accommodating cavity are provided with clearance holes facing the mounting hole, and the drive shaft can be inserted into the mounting hole or removed from the clearance hole.

8. The double-wheeled watch case polishing mechanism of claim 7, wherein, A side cover is provided at the clearance hole, and the upper ends of the first and second accommodating cavities are open to form openings, with a top cover provided at the openings.

9. The double-wheeled watch case polishing mechanism of claim 3, wherein, The drive shaft is equipped with a drive wheel, and the drive wheel is connected to the main shaft of the rotary motor through a transmission component.

10. A double wheel watch case polishing mechanism according to any one of claims 1 to 9, wherein, The central axis of the first grinding wheel and the central axis of the second grinding wheel are both parallel to the horizontal plane. An air passage gap is formed between the peripheral sidewall of the first grinding wheel and the peripheral sidewall of the second grinding wheel. The inlet of the air passage gap faces upward and the outlet of the air passage gap faces downward. The first grinding wheel is located on the left side of the air passage gap and the second grinding wheel is located on the right side of the air passage gap. During operation, the first grinding wheel rotates clockwise and the second grinding wheel rotates counterclockwise.

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