Watch bezel polishing device

Abstract

The utility model discloses a bezel polishing device which comprises a machine frame, a clamping mechanism, a polishing mechanism and a first driving piece, the clamping mechanism, the polishing mechanism and the first driving piece are arranged on the machine frame, the first driving piece drives the clamping mechanism and the polishing mechanism to move close to or away from each other in the front-back direction, the polishing mechanism is provided with a first base and a polishing assembly, and a friction piece is arranged on the polishing assembly. The clamping mechanism is provided with a base, a second base, a clamping assembly and a second driving piece, the second base is arranged on the base in a front-back sliding mode, the second driving piece is arranged between the second base and the base, the clamping assembly is arranged on the second base, and the friction piece is located on the front side of the clamping assembly. According to the utility model, the friction piece and the watch bezel adopt a front-back elastic abutting mode, so that in the polishing process of the watch bezel, the abutting force of the friction piece on the watch bezel is prevented from being too large, and the watch bezel is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the technical field of watch bezel processing equipment, specifically to a watch bezel polishing device. Background Technology

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

[0003] Currently, bezel polishing devices are used to polish watch bezels. These devices mainly consist of a clamping mechanism and a polishing mechanism. The clamping mechanism holds the bezel in place, while the friction element (sand belt or grinding wheel) on the polishing mechanism polishes the bezel. However, in traditional bezel polishing devices, the friction element exerts excessive pressure on the bezel during operation, which can easily damage the bezel. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a watch bezel polishing device. The friction component and the watch bezel are elastically engaged at the front and back, which prevents excessive pressure from the friction component on the watch bezel during the polishing process and thus prevents damage to the watch bezel.

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

[0006] A bezel polishing device includes a frame, a clamping mechanism, a polishing mechanism, and a first driving member disposed on the frame. The first driving member drives the clamping mechanism and the polishing mechanism to move closer to or further away in the front-back direction.

[0007] The polishing mechanism has a first base and a polishing assembly, the polishing assembly is disposed on the first base, and a friction element is provided on the polishing assembly;

[0008] The clamping mechanism has a base, a second base, a clamping assembly, and a second driving member. The second base is slidably disposed on the base. The second driving member is disposed between the second base and the base. The clamping assembly is disposed on the second base and can clamp the bezel. The friction member is located on the front side of the clamping assembly. During operation, the second driving member causes the bezel located on the clamping assembly to maintain elastic contact with the friction member in the front-back direction.

[0009] By setting up a clamping mechanism consisting of a base, a second base, a clamping assembly, and a second driving member, the second base is slidably mounted on the base, the second driving member is located between the second base and the base, the clamping assembly is mounted on the second base, and the friction member is located on the front side of the clamping assembly. During operation, the second driving member generates an elastic force in the front-back direction on the second base and the clamping assembly, so that the bezel on the clamping assembly and the friction member maintain elastic contact in the front-back direction. This prevents the friction member from exerting excessive pressure on the bezel during the bezel polishing process, thus preventing damage to the bezel.

[0010] In one embodiment, the base has two mounting portions spaced apart from each other, the second base has two movable portions connected to each other, the movable portions are slidably disposed on the corresponding mounting portions, the clamping assembly is located between the two movable portions, and the second driving member is provided between the mounting portions and the movable portions.

[0011] In one embodiment, the mounting part includes two mounting blocks spaced apart front to back, a guide rod is provided between the two mounting blocks, the movable part is slidably connected to the guide rod, and the mounting block located on the front side restricts the second base from disengaging from the guide rod.

[0012] In one embodiment, the second drive member has an air chamber and an air nozzle. In the second base and the base, one is provided with the air chamber and the other is provided with the air nozzle. One end of the air nozzle is movably disposed in the air chamber. The air chamber is connected to an external air source through the air nozzle.

[0013] In one embodiment, the second driving element is a buffer spring that causes the second base to always have a tendency to move forward.

[0014] In one embodiment, the clamping assembly has a connecting seat, and a chuck, a third driving member, and a fourth driving member disposed on the connecting seat. The connecting seat is connected to a second base. The third driving member drives the chuck to open and close, and the fourth driving member drives the chuck and the third driving member to rotate about a first axis. The first axis is coaxial with the central axis of the bezel.

[0015] In one embodiment, the third driving component is a cylinder, and the lower end of the cylinder is provided with a connecting shaft. The connecting shaft is rotatably inserted into the shaft hole on the connecting seat. A first air passage and a second air passage are provided between the cylinder body, the connecting shaft and the connecting seat. Both the first air passage and the second air passage are connected to the piston chamber inside the cylinder.

[0016] In one embodiment, the circumferential outer wall of the connecting shaft is provided with a first annular groove and a second annular groove, the first air passage is connected to the first annular groove, and the second air passage is connected to the second annular groove.

[0017] In one embodiment, a fifth driving member is provided on the second base, which drives the clamping assembly to rotate about a second axis, the second axis being perpendicular to the central axis of the bezel.

[0018] In one embodiment, the frame is provided with a sixth driving member and a seventh driving member. The sixth driving member drives the clamping mechanism to move left and right, and the seventh driving member drives the grinding mechanism to move up and down.

[0019] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, by setting up a clamping mechanism consisting of a base, a second base, a clamping assembly, and a second driving member, the second base is slidably mounted on the base, the second driving member is located between the second base and the base, the clamping assembly is mounted on the second base, and the friction member is located on the front side of the clamping assembly. During operation, the second driving member generates an elastic force in the front-back direction on the second base and the clamping assembly, so that the bezel on the clamping assembly and the friction member maintain elastic contact in the front-back direction. Thus, during the bezel polishing process, the friction member avoids excessive pressure on the bezel and prevents damage to the bezel.

[0020] 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

[0021] Figure 1 This is a schematic diagram of the assembly structure of the first embodiment of this utility model;

[0022] Figure 2 This is an assembly diagram of the clamping mechanism and the sixth driving component according to the first embodiment of this utility model;

[0023] Figure 3 yes Figure 2 A schematic diagram of the decomposition process;

[0024] Figure 4 This is an assembly diagram of the clamping mechanism of the first embodiment of the present utility model without the clamp, the third driving member and the fourth driving member;

[0025] Figure 5 This is an assembly diagram of the mounting part and the movable part according to the first embodiment of this utility model;

[0026] Figure 6 yes Figure 5 A cross-sectional schematic diagram;

[0027] Figure 7 This is a first-view cross-sectional schematic diagram of the clamping assembly according to the first embodiment of this utility model;

[0028] Figure 8 yes Figure 7 A magnified view of part A in the diagram.

[0029] Figure 9 This is a second-view cross-sectional schematic diagram of the clamping assembly according to the first embodiment of this utility model;

[0030] Figure 10 This is a schematic diagram of the assembly of the grinding wheel and abrasive belt according to the first embodiment of this utility model;

[0031] Figure 11 This is a schematic diagram of the assembly of two grinding wheels according to the first embodiment of this utility model;

[0032] Figure 12 This is a schematic diagram of the assembly structure of the second embodiment of this utility model;

[0033] Figure 13 This is a top view schematic diagram of the second embodiment of the present utility model;

[0034] Figure 14 This is a schematic diagram of the assembly of two sanding belts according to the second embodiment of this utility model;

[0035] Figure 15 This is a schematic diagram of the assembly structure of the third embodiment of this utility model.

[0036] Explanation of reference numerals in the attached diagram:

[0037] 10-Frame, 11-First drive unit, 12-Sixth drive unit, 13-Seventh drive unit, 20-Clamping mechanism, 21-Second base, 211-Moving part, 22-Clamping assembly, 221-Connecting seat, 2211-Shaft hole, 222-Chuck, 223-Third drive unit, 2231-Connecting shaft, 2232-Cylinder body, 2233-Piston chamber, 2234-First annular groove, 2235-Second annular groove, 2236-Third annular groove, 2237-Second sealing ring, 224-Fourth drive unit, 2241-Gear, 224 2-Motor, 225-First air passage, 226-Second air passage, 23-Second driving component, 231-Air chamber, 232-Air nozzle, 233-Air pipe connector, 234-Buffer spring, 24-Base, 241-Mounting part, 2411-Mounting block, 242-Guide rod, 243-Through hole, 244-Baffle, 25-Fifth driving component, 26-Allowing groove, 27-Paraffin block, 28-Wheel dressing block, 30-Grinding mechanism, 31-First base, 32-Grinding assembly, 33-Friction component, 331-Sand belt, 332-Grinding wheel, 40-Bezel. Detailed Implementation

[0038] 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.

[0039] 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.

[0040] like Figure 1-11 As shown, this utility model discloses a bezel polishing device. In the first embodiment, the bezel polishing device includes a frame 10, a clamping mechanism 20, a polishing mechanism 30, and a first driving member 11 disposed on the frame 10. The first driving member 11 drives the clamping mechanism 20 and the polishing mechanism 30 to move closer or further away in the front-back direction. Specifically, the first driving member 11 drives the polishing mechanism 30 to move back and forth. The first driving member 11 can be driven by a lead screw + motor 2242 or by a linear motor 2242.

[0041] The grinding mechanism 30 has a first base 31 and a grinding component 32. The grinding component 32 is disposed on the first base 31 and is provided with a friction element 33. The friction element 33 is at least one abrasive belt 331 and / or at least one abrasive wheel 332. Specifically, the friction element 33 is two abrasive belts 331, which are a coarse abrasive belt and a fine abrasive belt, and the two abrasive belts 331 are arranged vertically at intervals.

[0042] The clamping mechanism 20 has a base 24, a second base 21, a clamping assembly 22, and a second driving member 23. The second base 21 is slidably disposed on the base 24. The second driving member 23 is disposed between the second base 21 and the base 24. The clamping assembly 22 is disposed on the second base 21. The clamping assembly 22 can clamp the bezel 40. The friction member 33 is located on the front side of the clamping assembly 22. During operation, the second driving member 23 keeps the bezel 40 located on the clamping assembly 22 in elastic contact with the friction member 33 in the front-back direction.

[0043] The base 24 has two mounting portions 241 spaced apart from each other on the left and right. The second base 21 has two movable portions 211 connected to each other. The movable portions 211 are slidably disposed on the corresponding mounting portions 241. The clamping assembly 22 is located between the two movable portions 211. The second driving member 23 is provided between the mounting portion 241 and the movable portion 211.

[0044] The mounting part 241 includes two mounting blocks 2411 spaced apart front to back, and a guide rod 242 is provided between the two mounting blocks 2411. The movable part 211 is slidably connected to the guide rod 242 front to back, and the mounting block 2411 located on the front side restricts the second base 21 from disengaging from the guide rod 242.

[0045] The second driving component 23 has an air chamber 231 and an air nozzle 232. In the second base 21 and the base 24, one has the air chamber 231 and the other has the air nozzle 232. One end of the air nozzle 232 is movably disposed within the air chamber 231. The air chamber 231 is connected to an external air source through the air nozzle 232. Specifically, the air chamber 231 is disposed on the second base 21, and the air nozzle 232 is disposed on the base 24. An air pipe connector 233 is connected to the end of the air nozzle 232 away from the air chamber 231. The circumferential outer wall of the air nozzle 232 is connected to the air chamber. A first sealing ring (not shown) is provided between the inner walls of 231, and the positions of the air nozzle 232 and the air chamber 231 can be interchanged; by setting a second driving member 23 composed of the air chamber 231 and the air nozzle 232, the gas supplied by the external air source enters the air chamber 231 after passing through the air nozzle 232, so that the air forms an air cushion, so that the second base 21 can elastically jump in the front and back direction. In addition, the air pressure of the air chamber 231 can be adjusted by adjusting the amount of air input to achieve different degrees of polishing. For example, when the amount of air input is small, the pressure between the bezel 40 and the friction member 33 is reduced, and the degree of polishing is low.

[0046] The second driving element 23 may also be a buffer spring 234, which makes the second base 21 always have a tendency to move forward.

[0047] The buffer spring 234 is a compression spring. The front end of the compression spring abuts against the second base 21, and the rear end of the compression spring abuts against the base 24.

[0048] The base 24 is provided with a through hole 243. A detachable baffle 244 is provided at the end of the through hole 243 away from the second base 21. The pressure spring is disposed in the through hole 243. The rear end of the pressure spring abuts against the baffle 244. The baffle 244 is detachably connected to the second base 21 by screws. Specifically, the through hole 243 and the baffle 244 are both provided on the rear mounting block 2411. It can be understood that the pressure spring can also be replaced by a tension spring. By providing the through hole 243 and the baffle 244, the baffle 244 can be detached, thereby facilitating the assembly and disassembly of the pressure spring.

[0049] The clamping assembly 22 has a connecting seat 221, and a chuck 222, a third driving member 223, and a fourth driving member 224 disposed on the connecting seat 221. The connecting seat 221 is connected to the second base 21. The third driving member 223 drives the chuck 222 to open and close, so that the chuck 222 clamps or releases the bezel 40. The fourth driving member 224 drives the chuck 222 and the third driving member 223 to rotate around a first axis. The first axis is coaxial with the central axis of the bezel 40. One end of the connecting seat 221 is rotatably connected to the first movable part 211, and the other end of the connecting seat 221 is rotatably connected to the second movable part 211.

[0050] The fourth driving component 224 has a gear 2241 and a motor 2242. The gear 2241 is rotatably connected to the connecting seat 221. The clamping assembly 22 is mounted on the gear 2241. The motor 2242 drives the gear 2241 to rotate, so that the gear 2241 drives the clamping assembly 22 to rotate. Specifically, the chuck 222 and the third driving component 223 are both mounted on the gear 2241 by screws.

[0051] The third driving component 223 is a cylinder. The lower end of the cylinder is provided with a connecting shaft 2231. The connecting shaft 2231 is rotatably inserted into the shaft hole 2211 on the connecting seat 221. A first air passage 225 and a second air passage 226 are provided between the cylinder body 2232, the connecting shaft 2231 and the connecting seat 221. The first air passage 225 and the second air passage 226 are both connected to the piston chamber 2233 in the cylinder. The opening and closing of the cylinder driving chuck 222 is a mature existing technology, so it will not be described in detail.

[0052] The circumferential outer wall of the connecting shaft 2231 is provided with a first annular groove 2234 and a second annular groove 2235. The first air passage 225 is connected to the first annular groove 2234, and the second air passage 226 is connected to the second annular groove 2235.

[0053] A third annular groove 2236 is provided above the first annular groove 2234, between the first annular groove 2234 and the second annular groove 2235, and below the second annular groove 2235. A second sealing ring 2237 is provided in the third annular groove 2236. Specifically, the third annular groove 2236 is provided on the circumferential outer wall of the connecting shaft 2231. It can be understood that the third annular groove 2236 can also be provided on the circumferential inner wall of the shaft hole 2211.

[0054] The second base 21 is provided with a fifth driving member 25, which drives the clamping assembly 22 to rotate around a second axis, which is perpendicular to the central axis of the bezel 40. Specifically, the driving end of the fifth driving member 25 is connected to the connecting seat 221.

[0055] The frame 10 is equipped with a sixth driving member 12 and a seventh driving member 13. The sixth driving member 12 drives the clamping mechanism 20 to move left and right, and the seventh driving member 13 drives the grinding mechanism 30 and the first driving member 11 to move up and down. Both the sixth driving member 12 and the seventh driving member 13 can be driven by a lead screw + motor 2242, or they can be driven by a linear motor 2242.

[0056] The friction element 33 can also be a combination of a single sanding belt 331 and a single grinding wheel 332 (e.g.) Figure 10 (As shown).

[0057] The friction element 33 can also be two grinding wheels 332, which are respectively a coarse grinding wheel and a fine grinding wheel, and the two grinding wheels 332 are arranged vertically at intervals (e.g., Figure 11 (As shown).

[0058] The first driving component 11 drives the grinding mechanism 30 to move back and forth.

[0059] like Figure 12-13 As shown, in the second embodiment, the difference from the first embodiment is that the two grinding wheels 332 are spaced apart from each other, and a clearance groove 26 is provided between the chuck 222 on the clamping assembly 22 and one side of the second base 21. The clearance groove 26 allows the two grinding wheels 332 to enter and exit at the same time. During operation, the two grinding wheels 332 extend into the clearance groove 26 at the same time, and the grinding wheel 332 closer to the clamping assembly 22 polishes the outer wall of the bezel 40.

[0060] The friction element 33 can also be two sanding belts 331, with the two sanding belts 331 spaced apart from each other (e.g., ...). Figure 14 (As shown).

[0061] like Figure 15As shown, in the third embodiment, the difference from the first and second embodiments is that the second base 21 is provided with a wax block 27 and a polishing block 28. The polishing block 28 can polish and correct the circumferential contour of the grinding wheel 332. During operation, the grinding wheel 332 rubs against the wax block 27, so that the wax is attached to the grinding wheel 332. Then the grinding wheel 332 polishes the bezel 40. The first driving member 11 drives the clamping mechanism 20 and the sixth driving member 12 to move back and forth.

[0062] The working principle of the first embodiment of this utility model is as follows: The operator places the bezel 40 to be polished on the chuck 222. The third driving member 223 drives the chuck 222 to clamp the bezel 40. The first driving member 11 drives the polishing mechanism 30 to move backward, starts the polishing assembly 32, and the friction member 33 rotates. The second driving member 23 drives the second base 21 to move forward. The second base 21 drives the clamping assembly 22 to move forward synchronously, so that the outer wall of the bezel 40 abuts against the friction member 33. The friction member 33 polishes the bezel 40 during the rotation (first with coarse sandpaper, then with fine sandpaper). After the bezel 40 has been polished at one angle, the fourth driving member 224 drives the chuck 222 and the third driving member 223 to rotate, so that the bezel 40 rotates to the next angle, and polishes the bezel 40 again until the bezel 40 has been polished at all angles.

[0063] In summary, this utility model provides a clamping mechanism 20 consisting of a base 24, a second base 21, a clamping assembly 22, and a second driving member 23. The second base 21 is slidably mounted on the base 24, the second driving member 23 is located between the second base 21 and the base 24, the clamping assembly 22 is mounted on the second base 21, and the friction member 33 is located in front of the clamping assembly 22. During operation, the second driving member 23 generates an elastic force along the front-back direction on the second base 21 and the clamping assembly 22, so that the bezel 40 on the clamping assembly 22 and the friction member 33 maintain elastic contact along the front-back direction. This prevents excessive pressure from the friction member 33 on the bezel 40 during the polishing process and avoids damage to the bezel 40.

[0064] 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 bezel polishing device, characterized by, It includes a frame, and a clamping mechanism, a grinding mechanism, and a first driving member disposed on the frame. The first driving member drives the clamping mechanism and the grinding mechanism to move closer to or further away in the front-back direction. The polishing mechanism has a first base and a polishing assembly, the polishing assembly is disposed on the first base, and a friction element is provided on the polishing assembly; The clamping mechanism has a base, a second base, a clamping assembly, and a second driving member. The second base is slidably disposed on the base. The second driving member is disposed between the second base and the base. The clamping assembly is disposed on the second base and can clamp the bezel. The friction member is located on the front side of the clamping assembly. During operation, the second driving member causes the bezel located on the clamping assembly to maintain elastic contact with the friction member in the front-back direction.

2. The watch bezel sharpening device of claim 1, wherein, The base has two mounting portions spaced apart on the left and right, and the second base has two movable portions connected to each other. The movable portions are slidably disposed on the corresponding mounting portions. The clamping assembly is located between the two movable portions, and the second driving member is provided between the mounting portions and the movable portions.

3. The watch bezel sharpening device of claim 2, wherein, The mounting part includes two mounting blocks spaced apart front to back, with a guide rod between the two mounting blocks. The movable part is slidably connected to the guide rod, and the mounting block located on the front side restricts the second base from disengaging from the guide rod.

4. The watch bezel sharpening device of claim 1, wherein, The second driving component has an air chamber and an air nozzle. In the second base and the base, one is provided with the air chamber and the other is provided with the air nozzle. One end of the air nozzle is movably disposed in the air chamber. The air chamber is connected to an external air source through the air nozzle.

5. The watch bezel sharpening device of claim 1, wherein, The second driving component is a buffer spring, which causes the second base to always have a tendency to move forward.

6. The watch bezel sharpening device of claim 1, wherein, The clamping assembly has a connecting seat, and a chuck, a third driving member, and a fourth driving member disposed on the connecting seat. The connecting seat is connected to a second base. The third driving member drives the chuck to open and close. The fourth driving member drives the chuck and the third driving member to rotate around a first axis. The first axis is coaxial with the central axis of the bezel.

7. The bezel polishing apparatus according to claim 6, characterized in that, The third driving component is a cylinder. The lower end of the cylinder is provided with a connecting shaft. The connecting shaft is rotatably inserted into the shaft hole on the connecting seat. A first air passage and a second air passage are provided between the cylinder body, the connecting shaft and the connecting seat. Both the first air passage and the second air passage are connected to the piston chamber inside the cylinder.

8. The watch bezel sharpening device of claim 7, wherein, The connecting shaft has a first annular groove and a second annular groove on its circumferential outer wall. The first air passage is connected to the first annular groove, and the second air passage is connected to the second annular groove.

9. The watch bezel sharpening device of claim 6, wherein, The second base is provided with a fifth driving member, which drives the clamping assembly to rotate around a second axis, which is perpendicular to the central axis of the bezel.

10. The watch bezel sharpening device of any one of claims 1-9, wherein, The frame is equipped with a sixth driving component and a seventh driving component. The sixth driving component drives the clamping mechanism to move left and right, and the seventh driving component drives the grinding mechanism to move up and down.

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