Rotary laser etching mechanism for vacuum coating

The self-locking adjustment assembly, composed of a worm gear ring, worm, gear, and rack, enables synchronous movement of the clamping parts of the rotary laser engraving mechanism, solving the problem of slow adjustment speed of the clamping components in the existing technology, and improving the laser engraving accuracy and the applicability of the equipment.

CN224128852UActive Publication Date: 2026-04-17BEIJING CHENGKUAN VACUUM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING CHENGKUAN VACUUM TECH CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The clamping components of existing rotary laser engraving mechanisms need to be adjusted one by one, which is slow. Especially for round objects, the concentricity needs to be repeatedly calibrated. The operator's experience has a great influence, resulting in the laser engraving pattern being misaligned and the lines being uneven.

Method used

The self-locking adjustment assembly, consisting of a worm gear ring, worm, gear, and rack, enables synchronous movement of the clamping components by meshing the worm gear ring and worm with the gear and rack. Combined with the plug-in assembly, it achieves rapid concentric positioning of the clamping components.

Benefits of technology

The clamping process is fast and efficient, improving object stability, enhancing laser engraving precision, reducing operation time, and expanding the equipment's applicability to objects of different shapes and sizes.

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Abstract

The utility model relates to the technical field of rotary laser etching, in particular to a rotary laser etching mechanism for vacuum coating, which comprises a worktable, a turntable rotatably arranged at the top of the worktable, a laser etching device arranged on the worktable and positioned above the turntable, an upper cover fixedly mounted at the top of the turntable, and four clamping pieces slidably arranged at the top of the upper cover. A self-locking adjusting assembly used for controlling the four clamping pieces to get close to each other or get away from each other is arranged in the rotating disc, and the four clamping pieces are matched with the self-locking adjusting assembly in an inserted connection mode through inserting connection assemblies. Through the arrangement of the clamping piece, the self-locking adjusting assembly and the inserting assembly, the clamping process is quicker and more efficient through a synchronous moving mechanism of the clamping piece, meanwhile, an object can be quickly concentric with the rotating disc, the stability of the object in the laser etching process can be guaranteed, and therefore the laser etching precision is improved; and meanwhile, a self-locking effect is achieved between the worm gear ring and the worm, so that the stability of an object during laser etching machining can be further improved.
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Description

Technical Field

[0001] This utility model relates to the field of rotary laser engraving technology, and in particular to a rotary laser engraving mechanism for vacuum coating. Background Technology

[0002] Vacuum coating technology is a surface treatment technology that utilizes a vacuum environment. After vacuum coating is completed, a rotary laser engraving mechanism is needed for processing or engraving. Through the rotary laser engraving mechanism, high-precision engraving, lettering, or marking can be performed on objects, and it is suitable for processing various materials such as metal, plastic, and glass.

[0003] A user-friendly rotary laser engraving mechanism for vacuum coating is disclosed in Chinese Patent Publication No. CN222492598U. This mechanism, by setting up a clamping device, can clamp and fix the object being coated during processing, preventing the object from shifting during rotation. Fixing the object ensures its stability during rotation, improving processing precision and accuracy. However, according to rotary laser engraving mechanisms and existing technologies in related fields, existing clamping components are mostly independently adjustable structures. During clamping, the position of each clamping component needs to be adjusted one by one, which is slow. Especially for circular objects, concentricity needs to be repeatedly calibrated, which is greatly affected by the operator's experience. If an eccentric error occurs, it will lead to the position of the laser engraved pattern shift and uneven line thickness. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a rotary laser engraving mechanism for vacuum coating.

[0005] The purpose of this utility model is achieved through the following technical solution: a rotary laser engraving mechanism for vacuum coating, including a worktable, a turntable rotatably mounted on the top of the worktable, a laser engraving device mounted on the worktable above the turntable, a top cover fixedly mounted on the top of the turntable, four clamping members slidably mounted on the top of the top cover, and a self-locking adjustment component inside the turntable for controlling the four clamping members to move closer or further apart from each other, and the four clamping members are all plugged into the self-locking adjustment component through a plug-in component.

[0006] Preferably, the self-locking adjustment assembly includes a worm gear ring, a worm, four gears, and four racks. The worm gear ring is located at the center inside the turntable. The inner wall of the worm gear ring has a plurality of teeth. The four gears are evenly spaced and circumferentially distributed inside the worm gear ring, and all four gears mesh with the worm gear ring. The worm meshes with the outside of the worm gear ring. The four racks mesh with the four gears respectively, and the positions of the four racks correspond to the positions of the four clamping members.

[0007] Preferably, two adjacent racks are staggered vertically, and the bottom of each of the four gears on the turntable is provided with a first rotating hole, and the bottom of each of the four gears is connected to the first rotating hole through a bearing.

[0008] Preferably, the turntable has a second rotating hole corresponding to the position of the worm gear, the worm gear is connected to the second rotating hole through a bearing, and a knob is fixedly provided at one end of the worm gear that passes through the turntable and is located outside the turntable.

[0009] Preferably, all four clamping members are L-shaped, and a rubber layer is fixedly provided on the side of each of the four clamping members facing the center of the turntable.

[0010] Preferably, the plug-in assembly includes a slider fixedly disposed at the bottom of the clamping member, a plug rod fixedly disposed at the bottom end of the slider, and a plug hole adapted to the position of the rack corresponding to the position of the plug rod.

[0011] Preferably, the upper cover has grooves at the positions of the four sliders, and the worktable has a drive component inside for controlling the rotation of the turntable.

[0012] Beneficial effects:

[0013] This rotary laser engraving mechanism for vacuum coating, through the inclusion of clamping components, self-locking adjustment components, and plug-in components, utilizes the synchronous movement mechanism of the clamping components to make the clamping process faster and more efficient. It also enables the object to quickly align with the turntable, which helps ensure the stability of the object during laser engraving, thereby improving the accuracy of the laser engraving. Furthermore, the rapid clamping and releasing function of the clamping components reduces operation time, improving overall work efficiency. Additionally, the self-locking effect between the worm gear ring and the worm further enhances the stability of the object during laser engraving. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the first working state of the clamping component of this utility model;

[0017] Figure 3This is a schematic diagram of the second working state of the clamping component of this utility model;

[0018] Figure 4 This is a structural schematic diagram of the third working state of the clamping component of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the self-locking adjustment component of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the plug-in assembly of this utility model.

[0021] In the diagram: 1. Workbench; 2. Turntable; 3. Laser engraving device; 4. Top cover; 401. Slide groove; 5. Clamping component; 6. Self-locking adjustment component; 601. Worm gear ring; 602. Worm; 6021. Knob; 603. Gear; 604. Rack; 6041. Socket; 7. Plug-in component; 701. Slider; 702. Insert rod. Detailed Implementation

[0022] 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 based on the specific circumstances.

[0023] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0024] like Figures 1 to 6 As shown, a rotary laser engraving mechanism for vacuum coating includes a worktable 1, a turntable 2 rotatably mounted on the top of the worktable 1, and a drive component (not shown in the figure, but can be a motor, thus allowing the turntable 2 to rotate) for controlling the rotation of the turntable 2 inside the worktable 1. A laser engraving device 3 is mounted above the turntable 2 on the worktable 1. A top cover 4 is fixedly mounted on the top of the turntable 2, and four clamping members 5 are slidably mounted on the top of the top cover 4. The four clamping members 5 are all L-shaped, and a rubber layer is fixedly mounted on the side of each of the four clamping members 5 facing the center of the turntable 2. The rubber layer can increase the friction between the clamping members 5 and the object, ensuring the stability of the object after it is clamped and positioned by the clamping members 5. A self-locking adjustment component 6 is provided inside the turntable 2 for controlling the four clamping members 5 to move closer or further apart from each other. The four clamping members 5 are all plugged into the self-locking adjustment component 6 through a plug-in component 7.

[0025] like Figure 5 As shown, the self-locking adjustment assembly 6 includes a worm gear ring 601, a worm 602, four gears 603, and four racks 604. The worm gear ring 601 is located at the center inside the turntable 2, and its inner wall has several teeth. The four gears 603 are evenly spaced and circumferentially distributed inside the worm gear ring 601, and all four gears 603 mesh with the worm gear ring 601. The worm 602 meshes with the outside of the worm gear ring 601. The four racks 604 mesh with the four gears 603 respectively, and all four racks 604 are slidably disposed inside the turntable 2. The positions of the four racks 604 correspond to the positions of the four clamping members 5. Adjacent racks 604 are staggered vertically, thereby preventing adjacent racks 604 from sliding together. The gears 603 on the turntable 2 are connected by bearings at the bottom of the four gears 603. The bearings reduce the friction of the gears 603 during rotation and improve their stability. The turntable 2 is also connected by a second rotating hole at the position of the worm gear 602. The worm gear 602 is connected by bearings at the second rotating hole. The bearings reduce the friction of the worm gear 602 during rotation and improve its stability. A knob 6021 is fixed at the end of the worm gear 602 that passes through the turntable 2 and is located outside the turntable 2. The knob 6021 facilitates the rotation of the worm gear 602 by the operator.

[0026] like Figures 4 to 6 As shown, the insertion assembly 7 includes a slider 701 fixedly mounted on the bottom of the clamping member 5. A rod 702 is fixedly mounted on the bottom end of the slider 701. A toothed rack 604 has a corresponding insertion hole 6041 at the position of the rod 702. The upper cover 4 has a sliding groove 401 at the position of each of the four sliders 701. The synchronous movement mechanism of the clamping member 5 makes the clamping process faster and more efficient, and at the same time, it can make the object quickly concentric with the turntable 2. This helps to ensure the stability of the object during laser engraving, thereby improving the accuracy of laser engraving. The quick clamping and releasing function of the clamping member reduces the operation time and improves the overall work efficiency. At the same time, the worm gear ring 601 and the worm 602 have a self-locking effect, which can further improve the stability of the object during laser engraving.

[0027] The driving components of the laser engraving device 3 described in this application are all known in the art, therefore their specific structure and working principle are not described in detail.

[0028] The work process is as follows:

[0029] S1: When laser engraving is required on cylindrical objects, first place the cylindrical object between the four clamping parts 5, and then rotate the worm gear 602 by turning the knob 6021. By utilizing the meshing between the worm gear 602 and the turbine ring 601, the turbine ring 601 can be rotated.

[0030] S2: When the turbine ring 601 rotates, the four gears 603 will rotate synchronously in the same direction. By utilizing the meshing between the rack 604 and the gears 603, the four racks 604 can drive the four clamping parts 5 to move synchronously towards the center of the turntable 2 through the plug-in assembly 7, thereby allowing the four clamping parts 5 to clamp the cylindrical object.

[0031] S3: The synchronous movement mechanism of the clamping component 5 makes the clamping process faster and more efficient, and at the same time enables the object to quickly become concentric with the turntable 2. This helps to ensure the stability of the object during laser engraving, thereby improving the accuracy of laser engraving. In addition, the quick clamping and releasing function of the clamping component reduces the operation time and improves the overall work efficiency. At the same time, the worm gear ring 601 and the worm 602 have a self-locking effect, which can further improve the stability of the object during laser engraving.

[0032] S4: When laser engraving is required on an object with a square cross-section, the four corners of the object can be aligned with the clamping parts 5, and then the four clamping parts 5 can be controlled to move towards the object synchronously, so that the object quickly becomes concentric with the turntable 2.

[0033] S5: When laser engraving is required on an object with a rectangular cross-section, the two clamping parts 5 can be removed, and then the two clamping parts 5 can be controlled to move towards the object simultaneously, so that the object is quickly held in the middle of the turntable 2.

[0034] S6: Combining steps S4 and S5, it increases the applicability of the device, enabling it to handle objects of different shapes and sizes, providing greater flexibility and allowing the device to handle objects of various shapes without changing the hardware;

[0035] S7: After the object is clamped, the turntable 2 is rotated by the drive component, and then the object can be laser engraved by the laser engraving device 3.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rotary engraving mechanism for vacuum coating, characterized by: The device includes a workbench (1), a turntable (2) is rotatably mounted on the top of the workbench (1), a laser engraving device (3) is mounted on the workbench (1) above the turntable (2), a top cover (4) is fixedly mounted on the top of the turntable (2), four clamping parts (5) are slidably mounted on the top of the top cover (4), and a self-locking adjustment component (6) is provided inside the turntable (2) for controlling the four clamping parts (5) to move closer or further away from each other. The four clamping parts (5) are all plugged into the self-locking adjustment component (6) through a plug-in component (7).

2. The rotary etching mechanism for vacuum coating according to claim 1, characterized in that: The self-locking adjustment assembly (6) includes a worm gear ring (601), a worm (602), four gears (603) and four racks (604). The worm gear ring (601) is located at the center inside the turntable (2). The inner wall of the worm gear ring (601) is provided with several teeth. The four gears (603) are evenly spaced and circumferentially distributed inside the worm gear ring (601), and all four gears (603) mesh with the worm gear ring (601). The worm (602) meshes with the outside of the worm gear ring (601). The four racks (604) mesh with the four gears (603) respectively, and the positions of the four racks (604) correspond to the four clamping members (5).

3. The rotary etching mechanism for vacuum coating according to claim 2, characterized in that: The two adjacent racks (604) are staggered vertically. The turntable (2) has a first rotating hole at the bottom of each of the four gears (603). The bottom of each of the four gears (603) is connected to the first rotating hole through a bearing.

4. The rotary etching mechanism for vacuum coating according to claim 3, characterized in that: The turntable (2) has a second rotating hole corresponding to the position of the worm (602). The worm (602) is connected to the second rotating hole through a bearing. A knob (6021) is fixedly provided at one end of the worm (602) that passes through the turntable (2) and is located outside the turntable (2).

5. A rotary laser engraving mechanism for vacuum coating according to claim 3, characterized in that: All four clamping members (5) are L-shaped, and a rubber layer is fixedly provided on the side of each clamping member (5) facing the center of the turntable (2).

6. The rotary etching mechanism for vacuum coating according to claim 5, characterized in that: The plug-in assembly (7) includes a slider (701) fixedly disposed at the bottom of the clamping member (5), and a plug rod (702) is fixedly disposed at the bottom end of the slider (701). The rack (604) has a plug hole (6041) that matches the position of the plug rod (702).

7. The rotary etching mechanism for vacuum coating according to claim 6, characterized in that: The upper cover (4) has grooves (401) at the positions of the four sliders (701), and the inside of the worktable (1) is provided with a drive component for controlling the rotation of the turntable (2).

Citation Information

Patent Citations

  • Rotary laser etching mechanism convenient to operate and used for vacuum coating

    CN222492598U