Laser etching device for watch accessories

Abstract

The invention relates to the technical field of laser etching equipment, in particular to a laser etching device for watch accessories, and adopts the technical scheme that the laser etching device comprises emitting equipment for emitting laser and a carrying table arranged on one side of the emitting equipment; the carrying table comprises a moving assembly, the moving assembly is provided with a positioning assembly through a preset moving platform, one side of the positioning assembly is provided with a fixing assembly, and the fixing assembly is provided with a limiting piece to form a limiting space; the positioning assembly comprises a plurality of first telescopic pieces and second telescopic pieces which are arranged on the moving platform; the telescopic ends of the at least four first telescopic pieces are connected with the corner areas of the fixing assembly correspondingly, and the telescopic ends are hinged to the fixing assembly through universal joints. The device has the technical effects that through overall work of the device, effective laser etching work can be carried out on radian areas such as watch lugs under the condition that a dial plate is not transferred.

Description

Technical Field

[0001] This invention relates to the field of laser engraving equipment technology, and in particular to a laser engraving device for watch accessories. Background Technology

[0002] In the modern watchmaking industry, laser engraving technology, with its excellent precision, is widely used in the processing of watch cases, back covers, and other accessories. This technology allows for the precise engraving of patterns, text, or logos on these parts, which not only significantly enhances the visual effect and texture of the product, but also creates permanent marks that are difficult to erase, playing an important role in anti-counterfeiting and product identification.

[0003] However, since the lugs of a watch (which are designed and manufactured as an integral part of the dial) need to conform to the curvature of the user's wrist, they will have a certain curvature during processing. The working range that the galvanometer motor and reflective lens of the laser engraving equipment can adjust is limited. This makes the laser work effect poor when laser engraving in curved areas such as the lugs. In order to make the laser accurately engrave in this area, it is often necessary to tilt the watch case. Typically, watch lugs are set in two pairs. In addition, there is a need for laser engraving on the flat areas of the dial. This means that the dial needs to be laser engraved in three sections. The cumbersome process not only reduces production efficiency, but also increases processing costs and the difficulty of quality control. Summary of the Invention

[0004] The purpose of this invention is to provide a laser engraving device for watch accessories, which solves the problems of cumbersome process, reduced processing efficiency, and increased difficulty in quality control when performing laser engraving on the curved surface of workpieces in the prior art.

[0005] To achieve this objective, the present invention adopts the following technical solution: a laser engraving device for watch accessories, comprising an emitting device for emitting laser and a mounting platform disposed on one side of the emitting device; The platform includes a moving component, which is equipped with a positioning component via a preset moving platform. A fixing component is provided on one side of the positioning component, and the fixing component is equipped with a limiter to form a limiting space. The positioning component includes several first telescopic members and second telescopic members disposed on the mobile platform; at least four of the first telescopic members have their telescopic ends connected to the corner areas of the fixed component, and the telescopic ends are hinged to the fixed component via universal joints. The telescopic end of the second telescopic component is rotatably connected to the geometric center of the fixed component via its end head. During operation, the first telescopic component can drive the fixed assembly to rotate around the end head through telescopic drive, so as to adjust the tilt angle of the preset processing part within the limiting space.

[0006] Compared with the prior art, the present invention has the following beneficial effects: This device allows for effective laser engraving of curved areas such as the lugs without moving the dial. This avoids the problems of existing technology, which requires the watch case to be tilted to accurately laser-engraved curved areas. This cumbersome process reduces production efficiency and increases processing costs and the difficulty of quality control. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0009] Figure 1 A schematic diagram of the structure of a laser engraving device for a watch accessory; Figure 2 A schematic diagram of the structure of a laser engraving device mounting platform 200 for a watch accessory; Figure 3 A schematic diagram of the structure of the first telescopic component 11 and the second telescopic component 12 of a laser engraving device for a watch accessory; Figure 4 Exploded view of a fixing component 2 of a laser engraving device for a watch accessory; Figure 5 A schematic diagram of the structure of the first type of adsorption rod 23 for a laser engraving device for a watch accessory; Figure 6 A schematic diagram illustrating the working state of a laser engraving device for a watch accessory; Figure 7 A cross-sectional view of the top cover 22 of a laser engraving device for a watch accessory; Figure 8 A schematic diagram of the second type of adsorption rod 23 for a laser engraving device of a watch accessory; Figure 9 A schematic diagram of the telescopic cavity 4b structure of a laser engraving device for a watch accessory; Figure 10 Diagram showing the working state of the telescopic cavity 4b of a laser engraving device for a watch accessory; Figure 11 A diagram showing the first working state of a laser engraving device for a watch accessory; Figure 12 A diagram showing the second working state of a laser engraving device for a watch accessory; Figure 13 A schematic diagram of the third working state of a laser engraving device for a watch accessory; Figure 14 This is a structural schematic diagram of the pre-processed part 001; Figure 15 Diagram showing the working state of the adsorption rod 23 of the laser engraving device for a watch accessory; Illustration: Launching device 100, mounting platform 200, positioning component 1, fixing component 2, moving component 3, moving platform 3a, limiting component 4, limiting space 4a, first telescopic component 11, second telescopic component 12, universal joint 11a, end cap 12a. Mounting box 21, hollow cavity 21a, suction tube 21b, top cover 22, suction hole 22a, Adsorption rod 23, adsorption chamber 23a Enclosed cavity 22b, inhalation end 22c, elastic sheath 24 Telescopic cavity 4b, connecting pipe 41 Adhesive pad 23b Slide rail 31, slider 32 Preset processing part 001, flattening area 001a, arc area 001b, example laser engraving area 100a. Detailed Implementation

[0010] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0011] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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 the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0012] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0013] This invention provides a laser engraving device for watch accessories, such as... Figures 1-15 As shown, it includes a laser emission device 100 for emitting laser light, and a mounting platform 200 disposed on one side of the laser emission device 100; The platform 200 includes a moving component 3. The moving component 3 is equipped with a positioning component 1 via a preset moving platform 3a. A fixing component 2 is provided on one side of the positioning component 1. The fixing component 2 is equipped with a limiting member 4 to form a limiting space 4a. The positioning component 1 includes a plurality of first telescopic members 11 and second telescopic members 12 disposed on the mobile platform 3a; at least four of the first telescopic members 11 have their telescopic ends connected to the corner areas of the fixed component 2 respectively, and the telescopic ends are hinged to the fixed component 2 through universal joints 11a. The telescopic end of the second telescopic component 12 is rotatably connected to the geometric center of the fixed component 2 via end head 12a; During operation, the first telescopic component 11 can drive the fixed assembly 2 to rotate around the end 12a via telescopic drive, so as to adjust the tilt angle of the preset processing part 001 within the limiting space 4a.

[0014] Specifically, when this device is in operation, a pre-processed part 001 conforming to a fixed size is placed within the limiting space 4a. like Figure 6 As shown, at this time, the side wall of the pre-processed part 001 abuts against the inner side wall of the limiting member 4 to fix the pre-processed part 001, and at this time the pre-processed part 001 is supported by the fixing component 2. Then, the transmitting device 100 starts working, projecting a laser from its transmitting end to first perform laser engraving on the surface of the preset processing part 001. However, as Figure 14 As shown, the surface of the pre-processed part 001 is divided into a flattened region 001a and a curved region 001b. In existing technologies, when laser engraving the curved region 001b, the laser's working effect is unsatisfactory due to its large curvature. For laser engraving of the curved region 001b, it is necessary to remove the pre-processed part 001 after laser engraving the flattened region 001a, and then use another angled mounting platform to place the pre-processed part 001. This reduces the tangential angle between the curved region 001b and the laser, thereby improving the laser engraving effect in this area. However, this significantly reduces work efficiency. Therefore, this device is equipped with a positioning component 1. Specifically, when laser engraving is required on the arc region 001b... The moving component 3 begins to operate, driving the positioning component 1, the fixing component 2, the limiting component 4, and the preset processed part 001 to move until they reach the curved area 001b on one side, as shown. Figure 11-13 As shown, enter the example laser engraving area 100a. Among them, the example laser engraving range 100a is the optimal working range that the galvanometer motor and reflector built into the transmitting device 100 can be adjusted to. Then as Figure 13 As shown, the telescopic part of the first telescopic member 11 on one side extends and the first telescopic member on the other side shortens. The fixed component 2 is driven to rotate around the ball joint structure of the end 12a through the universal joint 11a, so that the arc area 001b of the preset processing part 001 forms a preset angle with the laser incident direction. At this point, the arc region 001b is tilted, and the tangent angle between the laser and the arc region 001b decreases, thereby achieving efficient laser processing of the arc region 001b. Furthermore, the second telescopic component 12 maintains the geometric center position of the workpiece unchanged during rotation, ensuring that the engraved pattern is free from distortion.

[0015] Preferably, the fixing component 2 includes a hollow cavity 21a formed inside the mounting box 21, and an air suction pipe 21b provided on one side; The top cover 22 covers the side of the mounting box 21 facing the launching device 100 and is provided with a number of adsorption holes 22a, which connect the hollow cavity 21a with the external space.

[0016] Specifically, when lasers are used to laser-etch parts, the laser burns the parts and produces smoke, which in turn affects the laser-etching effect on the parts' surface. Therefore, this device is provided with several adsorption holes 22a. Specifically, during laser processing, the pre-processed workpiece 001 is supported by the top cover 22. Before the device is put into operation, the first external air pump is connected to the suction pipe 21b of the mounting box 21 through an air pipe to ensure that a stable negative pressure is formed in the hollow cavity 21a. During laser engraving, the smoke generated by the laser burning the preset workpiece 001 is drawn into the hollow cavity 21a through the adsorption hole 22a on the top cover 22 and discharged through the suction pipe 21b, avoiding the attenuation of laser energy by the smoke and ensuring clear pattern edges. Furthermore, when the air is flowing, the adsorption hole 22a generates a certain adsorption force on the placed preset workpiece 001, so that the preset workpiece 001 will not have a slight displacement when it is driven by the positioning component 1 and the moving component 3, thereby further ensuring the laser engraving effect.

[0017] Preferably, the fixing component 2 further includes a plurality of suction rods 23; The adsorption rod 23 is disposed in the adsorption hole 22a, and an adsorption cavity 23a is formed along its axial direction. The adsorption cavity 23a is coaxially connected with the adsorption hole 22a, and the hollow cavity 21a is connected to the external space through the adsorption cavity 23a. From a horizontal perspective, the top end faces of several adsorption rods 23 form a curved structure that fits the concave surface of the pre-processed part 001 to increase the contact area with the pre-processed part 001, so as to ensure that the negative pressure acts directly on the concave surface of the pre-processed part 001 through the adsorption cavity 23a.

[0018] Preferably, the adsorption rod 23 is fixedly connected to the adsorption hole 22a.

[0019] Specifically, because the pre-processed part 001 is thin in actual operation, it cannot make large-area contact with the adsorption hole 22a, thus affecting the fixing effect. Therefore, this device is also equipped with an adsorption rod 23, such as Figure 5 , Figure 6 and Figure 15 As shown, its top end face is designed as an arc shape with the same curvature as the concave surface of the pre-machined part 001. The adsorption chamber 23a and the adsorption hole 22a are coaxially connected, ensuring that the negative pressure acts directly on the concave surface of the pre-processed workpiece 001 through the adsorption chamber 23a. The contact area is greatly increased by the fitting curve formed by several adsorption rods 23, which solves the problem of unstable fixation caused by insufficient contact area of ​​thin workpieces such as the pre-processed workpiece 001.

[0020] Preferably, the adsorption rod 23 is detachably connected to the adsorption hole 22a.

[0021] Specifically, since the concave surface curvature varies between different batches of pre-processed parts 001, in order for the adsorption rod 23 to fit with pre-processed parts 001 with different concave surface curvatures, Therefore, the adsorption rod 23 is threadedly connected to the adsorption hole 22a. In this way, when the curvature of the concave surface changes, the adsorption rod 23 can be removed by rotating it and replaced with an adsorption rod 23 of the corresponding specification, so that several adsorption rods 23 can fit concave surfaces with different curvatures.

[0022] Preferably, the adsorption rod 23 is slidably inserted into the adsorption hole 22a; The top cover 22 has a closed cavity 22b inside, and the closed cavity 22b has an air intake end 22c that communicates with the external space; Furthermore, the fixing component 2 also includes several elastic sleeves 24, which are fixedly connected to the top cover 22 and have axially penetrating through holes inside to form adsorption holes 22a. During operation, the adsorption hole 22a contracts radially under the negative pressure of the closed cavity 22b to hold the adsorption rod 23 tightly and restrict its axial movement.

[0023] Specifically, before the device is put into operation, the second external air pump is connected to the suction end 22c. In order to quickly adjust the position of the adsorption rods 23 so that several adsorption rods 23 can fit against the concave surface of the pre-processed workpiece 001 When the pre-processed part 001 is placed, its bottom surface contacts the top of several adsorption rods 24, and its side wall abuts tightly against the positioning surface of the limiting part 4, thus achieving initial positioning. Then, by pressing the pre-processed part 001 with external force, the adsorption rod 24 in contact moves axially along the adsorption hole 22a until the bottom edge of the part contacts the top cover 22, forming a stable support surface. Subsequently, the second external air pump operates, drawing air from the closed cavity 22b through the suction end 22c, creating a negative pressure inside the cavity. Under the action of the internal and external pressure difference, the elastic sleeve 24 undergoes radial contraction, reducing the inner diameter of the adsorption hole 22a and forming an interference fit with the outer wall of the adsorption rod 23. The axial position of the adsorption rod 23 is locked by friction. In this way, when it is necessary to adsorb and fix pre-processed parts 001 of different specifications, the adsorption rod 24 can be quickly adjusted.

[0024] Preferably, the limiting member 4 is made of a deformable material, with an internal telescopic cavity 4b and a connecting pipe 41 on one side; One end of the connecting pipe 41 is connected to the telescopic cavity 4b, and the other end is connected to the suction pipe 21b of the fixed component 2; The connecting pipe 41 is equipped with a valve. When the valve is opened, the air in the telescopic cavity 4b is connected to the connecting pipe 41.

[0025] Preferably, the deformable material is an elastomer material with a Shore hardness of 50-60.

[0026] Specifically, since the limiting member 4 needs to abut against the side wall of the pre-processed part 001, the limiting member 4 will block the side wall of the pre-processed part 001. When the fixed component 2 rotates, the projection of the limiting component 4 in the height direction forms a covering area on the arc region 001b; This significantly affects the processing accuracy of laser work in the curved area 001b, therefore, the limiting component 4 of this device is made of a deformable material such as rubber, and... Figure 9 As shown, it is provided with a telescopic cavity 4b; Specifically, when laser engraving is required on the curved area 001b, the valve inside the connecting pipe 41 is opened. At this time, the first external air pump is already drawing air from the suction pipe 21b. Thus, the air in the telescopic cavity 4b flows along the connecting pipe 41 and the suction pipe 21b and is drawn away. At this time, the limiting member 4 begins to contract due to the loss of internal air support. Figure 10In this state, the arc area 001b will no longer be covered by the limiting member 4.

[0027] Preferably, the adsorption rod 23 protrudes from one end of the top cover 22 and is covered with a rubber pad 23b.

[0028] Specifically, in order to ensure that the adsorption rod 23 can successfully adsorb the preset workpiece 001, therefore, as Figure 8 As shown, this device is also equipped with a rubber pad 23b. In this way, the adsorption rod 23 can better fit with the pre-processed workpiece 001, and also avoid the adsorption rod 23 scratching the surface of the pre-processed workpiece 001.

[0029] Preferably, the moving component 3 includes a slide rail 31 and a slider 32; the slide rail 31 is disposed on one side of the transmitting device 100 and is slidably connected to the slider 32, and the moving platform 3a is disposed on the slider 32.

[0030] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser engraving device for watch accessories, characterized in that, It includes a laser emitting device (100) for emitting lasers, and a mounting platform (200) disposed on one side of the laser emitting device (100). The mounting platform (200) includes a moving component (3), which is equipped with a positioning component (1) via a preset moving platform (3a). A fixing component (2) is provided on one side of the positioning component (1), and the fixing component (2) is provided with a limiting member (4) to form a limiting space (4a). The positioning component (1) includes a plurality of first telescopic members (11) and second telescopic members (12) disposed on the mobile platform (3a); at least four of the first telescopic members (11) have their telescopic ends connected to the corner areas of the fixed component (2) respectively, and the telescopic ends are hinged to the fixed component (2) through universal joints (11a); The telescopic end of the second telescopic member (12) is rotatably connected to the geometric center of the fixed component (2) via the end head (12a); During operation, the first telescopic component (11) can drive the fixed component (2) to rotate around the end (12a) by telescopic drive, so as to adjust the tilt angle of the preset processing part (001) in the limiting space (4a).

2. The laser engraving device for a watch accessory according to claim 1, characterized in that, The fixing component (2) includes a mounting box (21) and a top cover (22); The housing (21) has a hollow cavity (21a) inside and an air suction pipe (21b) on one side. The top cover (22) covers the side of the mounting box (21) facing the launching device (100) and is provided with a plurality of adsorption holes (22a), which connect the hollow cavity (21a) to the external space.

3. The laser engraving device for a watch accessory according to claim 2, characterized in that, The fixing component (2) also includes several suction rods (23); The adsorption rod (23) is disposed in the adsorption hole (22a) and an adsorption cavity (23a) is formed along its axial direction. The adsorption cavity (23a) is coaxially connected with the adsorption hole (22a) and the hollow cavity (21a) is connected to the external space through the adsorption cavity (23a). From a horizontal perspective, the top end faces of several of the adsorption rods (23) form a curved structure that fits the concave surface of the pre-processed part (001) to increase the contact area with the pre-processed part (001) and ensure that the negative pressure acts directly on the concave surface of the pre-processed part (001) through the adsorption cavity (23a).

4. The laser engraving device for a watch accessory according to claim 3, characterized in that, The adsorption rod (23) is fixedly connected to the adsorption hole (22a).

5. The laser engraving device for a watch accessory according to claim 3, characterized in that, The adsorption rod (23) is detachably connected to the adsorption hole (22a).

6. The laser engraving device for a watch accessory according to claim 3, characterized in that, The adsorption rod (23) is slidably inserted into the adsorption hole (22a); The top cover (22) has a closed cavity (22b) inside, and the closed cavity (22b) has an air intake end (22c) that communicates with the external space. The fixing component (2) also includes several elastic sleeves (24), which are fixedly connected to the top cover (22) and have axial through holes inside to form the adsorption holes (22a). During operation, the adsorption hole (22a) contracts radially under the negative pressure of the closed cavity (22b) to hold the adsorption rod (23) tightly and restrict its axial movement.

7. A laser engraving device for a watch accessory according to any one of claims 3-6, characterized in that, The limiting member (4) is made of deformable material, with an internal telescopic cavity (4b) and a connecting pipe (41) on one side. One end of the connecting pipe (41) is connected to the telescopic cavity (4b), and the other end is connected to the suction pipe (21b) of the fixing component (2); The connecting pipe (41) is equipped with a valve. When the valve is opened, the air in the telescopic cavity (4b) is connected to the connecting pipe (41).

8. The laser engraving device for a watch accessory according to claim 7, characterized in that, The deformable material is an elastomer material with a Shore hardness of 50-60.

9. The laser engraving device for a watch accessory according to claim 1, characterized in that, The adsorption rod (23) protrudes from one end of the top cover (22) and is covered with a rubber pad (23b).

10. The laser engraving device for a watch accessory according to claim 1, wherein the moving component (3) includes a slide rail (31) and a slider (32). The slide rail (31) is located on one side of the launching device (100), and a slider (32) is slidably connected to it. The moving platform (3a) is located on the slider (32).

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