A replaceable optical lens coating tray device

Abstract

The utility model discloses a replaceable optical lens coating tray device relates to optical coating equipment technical field, the utility model discloses a mounting seat is provided with the tray body at the top, the mounting seat inner chamber is provided with the clamping mechanism, and the clamping mechanism includes the first gear of setting in the mounting seat inner chamber, the utility model discloses through worm wheel worm drive pair drive multiple first gear synchronous rotation, drives extruding rod radial displacement clamping tray positioning rod, replaces the clearance fit structure of traditional bolt, eliminates the small -range displacement problem of tray because of assembly gap, ensures the position accuracy of lens and coating source in the coating process, promotes the coating uniformity and product consistency, and worm wheel worm drive pair has the self -locking characteristic, when stopping rotating knob, worm wheel cannot reverse rotation personally, can effectively prevent the clamping loose because of equipment vibration or misoperation, guarantees the stability of tray in whole technological cycle.

Description

Technical Field

[0001] This utility model belongs to the field of optical coating equipment technology, and in particular relates to a replaceable optical lens coating tray device. Background Technology

[0002] Optical lenses typically require coatings during manufacturing to alter their surface optical properties, such as anti-reflection, reflection, and beam splitting. Coating processes are generally performed in vacuum coating equipment, with lenses loaded and secured to the equipment's worktable using specialized trays. In actual production, frequent tray changes are necessary to accommodate lenses of different diameters, curvatures, or materials.

[0003] In existing technologies, the mounting and fixing of optical lens coating trays typically employs a clearance fit structure of pins and pin holes: a positioning pin is set at the bottom of the tray, which is then inserted and fixed to the corresponding pin hole on the mounting base. However, this structure has significant drawbacks: due to manufacturing tolerances and assembly clearances of the pins and pin holes, the tray is prone to slight displacement under the vibration environment of the coating equipment (such as vacuum pump operation, target sputtering impact) or its own gravity, resulting in a relative positional shift between the lens and the coating source. This leads to uneven coating thickness, localized missed coatings, or contamination, severely affecting product yield.

[0004] To address these issues, we provide a replaceable optical lens coating tray device. Utility Model Content

[0005] The purpose of this invention is to provide a replaceable optical lens coating tray device. By cooperating with the clamping mechanism and the driving mechanism, it solves the problems of low fitting gap and low replacement efficiency in the existing replaceable optical lens coating tray devices.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a replaceable optical lens coating tray device, comprising a mounting base, with a tray body disposed on the top of the mounting base; a clamping mechanism is disposed within the inner cavity of the mounting base, the clamping mechanism comprising a first gear disposed within the inner cavity of the mounting base, a fixed cylinder fixedly connected to the inner cavity of the mounting base, a through hole formed on the surface of the fixed cylinder, and a pressing rod disposed within the inner cavity of the through hole; the inner cavity of the mounting base also comprises a driving mechanism, the driving mechanism comprising a worm gear rotatably connected to the inner cavity of the mounting base via a bearing seat, a worm wheel meshing with the surface of the worm gear, a rotating shaft fixedly connected to the axis of the worm wheel, and a second gear fixedly connected to the surface of the rotating shaft.

[0008] The present invention is further configured such that a driving block is fixedly connected to one end of the extrusion rod, a spring is sleeved on the surface of the extrusion rod, and a driving wheel is fixedly connected to the shaft of the first gear.

[0009] The present invention is further configured such that one end of the spring is fixedly connected to one side of the driving block, and the other end of the spring is fixedly connected to the surface of the fixed cylinder.

[0010] The present invention is further configured such that a constraint rod is fixedly connected to one side of the first gear, and a constraint groove adapted to the constraint rod is provided in the inner cavity of the mounting base.

[0011] The present invention is further configured such that a positioning rod is fixedly connected to the bottom of the tray body, and the positioning rod corresponds one-to-one with the fixed cylinder.

[0012] The present invention is further configured such that the second gear meshes with the first gear, and the number of the first gears is four.

[0013] The present invention is further configured such that one end of the worm gear extends through to the outside of the mounting base and is fixedly connected to a knob, and the front of the mounting base is provided with a rotation direction arrow.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model uses a worm gear transmission pair to drive multiple sets of first gears to rotate synchronously, which in turn drives the extrusion rod to move radially and clamp the tray positioning rod. This replaces the traditional pin-type clearance fit structure, eliminating the problem of small displacement of the tray caused by assembly gaps. It ensures the positional accuracy of the lens and coating source during the coating process, improves coating uniformity and product consistency, and the worm gear transmission pair has a self-locking characteristic (the worm lead angle is less than the friction angle). When the knob is stopped, the worm wheel cannot rotate in the opposite direction on its own, which can effectively prevent the clamping from loosening due to equipment vibration or misoperation, and ensure the stability of the tray throughout the entire process cycle.

[0016] 2. This utility model uses four first gears to drive the four extrusion rods in a synchronous radial manner through the second gears, thereby preventing the tray from tilting due to uneven force on one side, ensuring the coaxiality of the tray installation, and further improving the coating quality.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1This is a perspective view of a replaceable optical lens coating tray device.

[0020] Figure 2 This is a diagram showing the engagement of the first and second gears in a replaceable optical lens coating tray device.

[0021] Figure 3 This is a diagram showing the assembly of the drive wheel, drive block, and pressing rod in a replaceable optical lens coating tray device.

[0022] Figure 4 This is a diagram showing the fit between the worm gear and worm wheel in a replaceable optical lens coating tray device.

[0023] Figure 5 This is a diagram showing the fit between the constraint rod and the constraint groove in a replaceable optical lens coating tray device.

[0024] In the attached diagram: 1. Mounting base; 2. Tray body; 3. First gear; 4. Fixing cylinder; 5. Through hole; 6. Pressing rod; 7. Worm gear; 8. Worm wheel; 9. Rotating shaft; 10. Second gear; 11. Drive block; 12. Spring; 13. Drive wheel; 14. Constraint rod; 15. Constraint groove; 16. Positioning rod; 17. Knob; 18. Rotation direction arrow. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1-5 This utility model is a replaceable optical lens coating tray device, including a mounting base 1, with a tray body 2 on the top of the mounting base 1; a clamping mechanism is provided in the inner cavity of the mounting base 1, the clamping mechanism includes a first gear 3 disposed in the inner cavity of the mounting base 1, a fixed cylinder 4 fixedly connected to the inner cavity of the mounting base 1, a through hole 5 opened on the surface of the fixed cylinder 4, and a pressing rod 6 disposed in the inner cavity of the through hole 5; the inner cavity of the mounting base 1 is also provided with a driving mechanism, the driving mechanism includes a worm 7 rotatably connected to the inner cavity of the mounting base 1 through a bearing seat, a worm wheel 8 meshing with the surface of the worm 7, a rotating shaft 9 fixedly connected to the axis of the worm wheel 8, and a second gear 10 fixedly connected to the surface of the rotating shaft 9.

[0028] Further details: The fixed cylinder 4 extends to the outside of the mounting base 1. The height of the first gear 3 is less than the height of the fixed cylinder 4. The worm 7 and worm wheel 8 form a transmission pair with a self-locking function, which can prevent reverse rotation under vibration, ensure the stability of the clamping state, effectively eliminate assembly gaps, avoid pallet displacement during the process, and improve coating uniformity and product consistency.

[0029] Example 2

[0030] Please see Figures 1-5 Based on embodiment 1, a drive block 11 is fixedly connected to one end of the extrusion rod 6, a spring 12 is sleeved on the surface of the extrusion rod 6, a drive wheel 13 is fixedly connected to the shaft of the first gear 3, one end of the spring 12 is fixedly connected to one side of the drive block 11, and the other end of the spring 12 is fixedly connected to the surface of the fixed cylinder 4. A constraint rod 14 is fixedly connected to one side of the first gear 3, a constraint groove 15 adapted to the constraint rod 14 is opened in the inner cavity of the mounting base 1, a positioning rod 16 is fixedly connected to the bottom of the tray body 2, the positioning rod 16 corresponds to the fixed cylinder 4 one by one, the second gear 10 meshes with the first gear 3, there are four first gears 3, one end of the worm gear 7 passes through to the outside of the mounting base 1 and is fixedly connected to a knob 17, and a rotation arrow 18 is provided on the front of the mounting base 1.

[0031] Further details: When the drive wheel 13 rotates, it pushes the drive block 11, which in turn drives the pressing rod 6 to move radially, achieving clamping or releasing functions. The spring 12 is set to push the pressing rod 6 to reset when the drive block 11 is not under force, thereby releasing the pallet body 2. The cooperation between the constraint rod 14 and the constraint groove 15 can limit the first gear 3 to only rotate, preventing axial displacement and ensuring transmission accuracy. The positioning rod 16 is inserted into the fixed cylinder 4 to achieve the initial positioning of the pallet body 2, providing a basis for subsequent clamping. Through the synchronous action of multiple first gears 3, the synchronous clamping or releasing of multiple positioning rods 16 is achieved, improving the stability and balance of pallet installation. The rotation arrow 18 is used to indicate the rotation direction of the knob 17, avoiding misoperation and improving the convenience and accuracy of use.

[0032] The working principle of this utility model is as follows: Align the four positioning rods 16 at the bottom of the tray body 2 with the four fixed cylinders 4 of the mounting base 1 and insert them vertically downwards. The operator rotates the knob 17 in the direction indicated by the rotation arrow 18, which drives the worm gear 7 to rotate. The worm gear 7 drives the worm wheel 8 and the rotating shaft 9 to rotate. The second gear 10 on the rotating shaft 9 drives the four first gears 3 to rotate synchronously. The first gears 3 drive the drive wheel 13 to rotate. The cam surface of the drive wheel 13 pushes the drive block 11, overcoming the elastic force of the spring 12, causing the pressing rod 6 to move towards the center of the fixed cylinder 4, thereby clamping the positioning rod 16. Due to the self-locking characteristics of the worm wheel 8 and the worm gear 7, the clamping state is maintained. When the tray needs to be replaced, rotate the knob 17 in the opposite direction, the drive wheel 13 returns to its original position, the spring 12 pushes the drive block 11 and the pressing rod 6 to reset, and the positioning rod 16 is released, allowing the tray body 2 to be removed.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A replaceable optical lens coating tray device, comprising a mounting base (1), characterized in that: The mounting base (1) is provided with a tray body (2) on top; The mounting base (1) is provided with a clamping mechanism in its inner cavity. The clamping mechanism includes a first gear (3) provided in the inner cavity of the mounting base (1), a fixed cylinder (4) fixedly connected to the inner cavity of the mounting base (1), a through hole (5) opened on the surface of the fixed cylinder (4), and a pressing rod (6) provided in the inner cavity of the through hole (5). The inner cavity of the mounting base (1) is also provided with a driving mechanism, which includes a worm (7) rotatably connected to the inner cavity of the mounting base (1) through a bearing seat, a worm wheel (8) meshing with the surface of the worm (7), a rotating shaft (9) fixedly connected to the axis of the worm wheel (8), and a second gear (10) fixedly connected to the surface of the rotating shaft (9).

2. The replaceable optical lens coating tray device according to claim 1, characterized in that: One end of the extrusion rod (6) is fixedly connected to a drive block (11), a spring (12) is sleeved on the surface of the extrusion rod (6), and a drive wheel (13) is fixedly connected to the shaft of the first gear (3).

3. The replaceable optical lens coating tray device according to claim 2, characterized in that: One end of the spring (12) is fixedly connected to one side of the drive block (11), and the other end of the spring (12) is fixedly connected to the surface of the fixed cylinder (4).

4. The replaceable optical lens coating tray device according to claim 1, characterized in that: A constraint rod (14) is fixedly connected to one side of the first gear (3), and a constraint groove (15) adapted to the constraint rod (14) is provided in the inner cavity of the mounting base (1).

5. The replaceable optical lens coating tray device according to claim 1, characterized in that: The bottom of the tray body (2) is fixedly connected with a positioning rod (16), and the positioning rod (16) corresponds one-to-one with the fixed cylinder (4).

6. The replaceable optical lens coating tray device according to claim 1, characterized in that: The second gear (10) meshes with the first gear (3), and there are four first gears (3).

7. The replaceable optical lens coating tray device according to claim 1, characterized in that: One end of the worm gear (7) extends through to the outside of the mounting base (1) and is fixedly connected to a knob (17). The mounting base (1) has a rotation arrow (18) on its front side.

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