Spherical polishing device for processing multispectral zinc sulfide spherical lens
By designing an adaptive suction cup assembly and vacuum adsorption technology, the problem of edge chipping during the polishing of multispectral zinc sulfide spherical lenses was solved, and efficient collection and treatment of contaminants were achieved, improving the stability and cleanliness of the process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG DINGMING OPTICAL TECH CO
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-31
AI Technical Summary
In the existing technology, multispectral zinc sulfide spherical lenses are prone to edge chipping during polishing due to the clamping and fixing process, and there is a lack of effective dirt collection and treatment solutions.
A spherical polishing device for processing multispectral zinc sulfide spherical lenses was designed. It uses a suction cup assembly for shape-adaptive adsorption and fixation, combined with vacuum adsorption technology to ensure uniform force on the lens, and achieves good sealing performance through a sealing design. At the same time, a collection tank is set up to collect dirt.
It effectively reduces the probability of lens edge chipping and achieves efficient collection and treatment of contaminants during polishing, improving processing stability and cleanliness.
Smart Images
Figure CN224575316U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of spherical polishing, specifically, it relates to a spherical polishing device for processing multispectral zinc sulfide spherical lenses. Background Technology
[0002] Multispectral zinc sulfide spherical lenses are spherical lenses made of zinc sulfide material prepared by chemical vapor deposition (CVD) and are mainly used in multi-band optical applications. Zinc sulfide (ZnS) prepared by CVD is chemically inert, has high purity, is insoluble in water, has moderate density, and is easy to process. After modification by hot isostatic pressing (such as CLEARTRAN), the material structure is more stable, and the transmittance in the visible to far-infrared range (0.35-14 micrometers) is close to the level of a single crystal. It is mainly used in military fields (such as infrared windows, fairings, etc.) and is also suitable for scenarios requiring mechanical strength in harsh environments. During the polishing process of zinc sulfide spherical lenses, a clamping and fixing method is usually used to fix the spherical lens. Due to the high brittleness of zinc sulfide, this clamping and fixing method is prone to stress concentration, leading to edge chipping.
[0003] In view of this, this utility model is proposed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a spherical polishing device for processing multispectral zinc sulfide spherical lenses. The basic concept of the technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: A spherical polishing device for processing multispectral zinc sulfide spherical lenses includes a main support platform and a support box mounted on top of it. A top frame is provided on the side of the support box, and a cylinder is fixedly installed at the top of the top frame. A lifting frame is connected to the lower end of the cylinder's telescopic rod, and a polishing motor is installed on the lifting frame. A connecting mounting base is provided at the output end of the polishing motor, and the connecting mounting base is fixedly connected to the connecting shaft of the polishing mold by locking screws. A fixed suction cup is provided on the support box. The upper end of the fixed suction cup has a spherical structure, the shape and specifications of which are adapted to the shape and specifications of the zinc sulfide spherical lens. Multiple adsorption holes are provided on the spherical surface of the fixed suction cup. A filter screen, a sealing valve, and a spring are provided inside each adsorption hole. The lower part of each adsorption hole communicates with the pressure-holding chamber of the suction cup. A suction cup assembly is provided inside the cavity of the support box to ensure the adsorption function of the fixed suction cup.
[0005] As a further embodiment of this utility model: a sealing partition is provided at the bottom of the suction cup pressure holding cavity, and the sealing partition is fixedly connected to the fixed suction cup by fixing screws. A sealing groove and a sealing ring are provided at the mating position of the sealing partition and the fixed suction cup, so that the suction cup pressure holding cavity has good sealing performance.
[0006] As a further embodiment of this utility model: the suction cup pressure-holding chamber is connected to the suction cup assembly through a ventilation pipe, and a sealing element is provided at the mating position between the ventilation pipe and the sealing partition. The suction cup assembly includes a compressor, a filter pressure reducing valve, a solenoid valve, a vacuum generator, a vacuum filter, etc., and the suction cup assemblies are connected to each other through pipes.
[0007] As a further improvement of this utility model: the lifting frame is a frame structure, and guide ears are fixedly provided on both sides of the top plate of the top frame. Guide through holes are opened on the guide ears, and guide rods are fixedly provided on the top frame. The guide rods pass through the guide through holes to ensure the stability of the lifting frame's lifting adjustment.
[0008] As a further embodiment of this utility model: a locking plane is provided on the outer side of the connecting mounting base, a connecting hole is machined on the locking plane, and a threaded hole adapted to the connecting hole is machined in the radial direction of the connecting shaft. The locking screw is installed in the connecting hole and the threaded hole for fixing the polishing mold.
[0009] As a further improvement of this utility model: a collection groove is provided on the support box, a drain outlet is provided on the side of the collection groove, a sealing block is provided at the drain outlet, and extended end plates are provided at both ends of the sealing block. The extended end plates are fixedly connected to the support box by fastening screws. A sealing gasket is provided at the bottom end of the sealing block where it mates with the drain outlet, so that the installation of the sealing block has good sealing performance.
[0010] As a further improvement of this utility model: a ventilation window is provided on the side of the support box, and a switch box is provided on the outside of the support box, and the switch box is electrically connected to the corresponding electrical components.
[0011] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.
[0012] This invention utilizes a suction cup to adsorb and fix a zinc sulfide spherical lens. The shape and specifications of the suction cup are adapted to the shape and specifications of the zinc sulfide spherical lens. During the adsorption and fixing process, the zinc sulfide spherical lens is subjected to uniform force, which can effectively reduce the probability of edge chipping of the spherical lens.
[0013] The present invention connects the mounting base and the polishing mold with locking screws, which facilitates the replacement of the polishing mold. The support box is provided with a collection groove and a drain outlet, which facilitates the collection and treatment of dirt generated during the polishing process.
[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a partial enlarged view of point A of this utility model; Figure 5 This is a partial enlarged view of section B of this utility model.
[0016] In the diagram: 1. Main support platform; 2. Top frame; 3. Cylinder; 4. Guide rod; 5. Lifting frame; 6. Polishing motor; 7. Connecting mounting base; 8. Polishing mold; 9. Support box; 10. Drain outlet; 11. Switch box; 12. Collection tank; 13. Fixed suction cup; 14. Guide ear; 15. Locking plane; 16. Locking screw; 17. Connecting shaft; 18. Vent window; 19. Suction cup pressure holding chamber; 20. Sealing partition; 21. Sealing ring; 22. Fixing screw; 23. Suction cup assembly; 24. Sealing block; 25. Extension end plate; 26. Fastening screw; 27. Sealing gasket; 28. Adsorption hole; 29. Filter screen; 30. Sealing valve; 31. Spring.
[0017] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0019] like Figures 1 to 5As shown, a spherical polishing device for processing multispectral zinc sulfide spherical lenses includes a main support platform 1 and a support box 9 mounted on top of it. A top frame 2 is provided on the side of the support box 9, and a cylinder 3 is fixedly installed at the top of the top frame 2. The lower end of the telescopic rod of the cylinder 3 is connected to a lifting frame 5, and a polishing motor 6 is installed at the lifting frame 5. A connecting mounting seat 7 is provided at the output end of the polishing motor 6. The connecting mounting seat 7 is fixedly connected to the connecting shaft 17 of the polishing mold 8 by a locking screw 16. A fixed suction cup 13 is provided on the support box 9. The upper end of the fixed suction cup 13 is a spherical structure, and the shape and specifications of the spherical structure are adapted to the shape and specifications of the zinc sulfide spherical lens. Multiple adsorption holes 28 are provided on the spherical surface of the fixed suction cup 13. A filter screen 29, a sealing valve 30, and a spring 31 are provided in the adsorption holes 28. The lower part of the adsorption holes 28 is connected to the suction cup pressure chamber 19. A suction cup assembly 23 is provided in the cavity of the support box 9 to ensure the adsorption function of the fixed suction cup 13.
[0020] The bottom of the suction cup pressure holding cavity 19 is provided with a sealing partition 20. The sealing partition 20 is fixedly connected to the fixed suction cup 13 by a fixing screw 22. The sealing partition 20 and the fixed suction cup 13 are provided with a sealing groove and a sealing ring 21 at the mating position to ensure that the suction cup pressure holding cavity 19 has good sealing performance.
[0021] The suction cup pressure chamber 19 is connected to the suction cup assembly 23 through a ventilation pipe. A seal is provided at the mating position between the ventilation pipe and the sealing partition 20. The suction cup assembly 23 includes a compressor, a filter pressure reducing valve, a solenoid valve, a vacuum generator, a vacuum filter, etc. The suction cup assemblies 23 are connected to each other through pipes.
[0022] The lifting frame 5 has a frame structure. Guide ears 14 are fixedly installed on both sides of the top plate of the top frame 2. Guide through holes are opened on the guide ears 14. Guide rods 4 are fixedly installed on the top frame 2. The guide rods 4 pass through the guide through holes to ensure the stability of the lifting adjustment of the lifting frame 5.
[0023] A locking plane 15 is provided on the outer side of the connecting mounting base 7. A connecting hole is machined on the locking plane 15. A threaded hole that matches the connecting hole is machined in the radial direction of the connecting shaft 17. A locking screw 16 is installed in the connecting hole and the threaded hole for fixing the polishing mold 8.
[0024] A collection trough 12 is provided on the support box 9, and a drain port 10 is provided on the side of the collection trough 12. A sealing block 24 is provided at the drain port 10. Extended end plates 25 are provided at both ends of the sealing block 24. The extended end plates 25 are fixedly connected to the support box 9 by fastening screws 26. A sealing gasket 27 is provided at the bottom end of the sealing block 24 where it mates with the drain port 10 to ensure good sealing of the sealing block 24.
[0025] A ventilation window 18 is provided on the side of the support box 9, and a switch box 11 is provided on the outside of the support box 9. The switch box 11 is electrically connected to the corresponding electrical components.
[0026] The working principle of this utility model is as follows: The multispectral zinc sulfide spherical lens is placed on the fixed suction cup 13. The suction cup assembly 23 is activated, and the spherical lens is adsorbed and fixed on the fixed suction cup 13 by vacuum adsorption. The suction cup assembly 23 includes a compressor, a filter pressure reducing valve, a solenoid valve, a vacuum generator, a vacuum filter, etc. The suction cup assemblies 23 are connected by pipes. The specific connection method is the same as the existing vacuum suction cup assembly 23 connection method, which will not be described in detail here. The cylinder 3 drives the lifting frame 5 to move downward, and the polishing motor 6 drives the polishing mold 8 to rotate. The specifications of the polishing mold 8 are adapted to the specifications of the spherical lens to polish the spherical lens. The cylinder 3 is equipped with pneumatic components such as an air pump and a control valve, which are existing technologies. During the polishing process, nano-grade cerium oxide (CeO2) or aluminum oxide (Al2O3) polishing solution (neutral or weakly alkaline pH) is used to avoid corrosion of the ZnS surface by acidic solutions. During rough polishing, the rotation speed of the polishing mold 8 is 20~50 rpm, and during fine polishing, the rotation speed of the polishing mold 8 is 10~30 rpm. After each process, ultrasonic cleaning with deionized water and anhydrous ethanol (frequency 40kHz, time 3~5 minutes) is required to avoid polishing solution residue. The polishing solution and polishing powder are collected in the collection tank 12 for treatment. The adjustment process of cylinder 3 during polishing can be manually adjusted and controlled by the switch box 11, or it can be automatically controlled by a PLC control system and detection elements. The PLC control system is not specifically limited. This invention utilizes a suction cup to adsorb and fix a zinc sulfide spherical lens. The shape and specifications of the suction cup are adapted to the shape and specifications of the zinc sulfide spherical lens. During the adsorption and fixing process, the zinc sulfide spherical lens is subjected to uniform force, which can effectively reduce the probability of edge chipping of the spherical lens. The connecting mounting base 7 and the polishing mold 8 are fixed by locking screws 16, which facilitates the replacement of the polishing mold 8. The support box 9 is provided with a collection groove 12, and a drain port 10 is provided at the collection groove 12 to facilitate the collection and treatment of dirt generated during the polishing process.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A spherical polishing device for processing a multi-spectral zinc sulfide spherical lens, comprising a main support table plate (1) and a support box body (9) arranged above the main support table plate (1), characterized in that, A top frame (2) is provided on the side of the support box (9). A cylinder (3) is fixedly installed at the top of the top frame (2). A lifting frame (5) is connected to the lower end of the telescopic rod of the cylinder (3). A polishing motor (6) is installed at the lifting frame (5). A connecting mounting seat (7) is provided at the output end of the polishing motor (6). The connecting mounting seat (7) is fixedly connected to the connecting shaft (17) of the polishing mold (8) by a locking screw (16). A fixed... The fixed suction cup (13) has a spherical structure at its upper end. The shape and specifications of the spherical structure are adapted to the shape and specifications of the zinc sulfide spherical lens. Multiple adsorption holes (28) are provided on the spherical surface of the fixed suction cup (13). A filter screen (29), a sealing valve (30) and a spring (31) are provided in the adsorption holes (28). The lower part of the adsorption holes (28) is connected to the pressure holding cavity (19) of the suction cup. The suction cup assembly (23) is provided in the cavity of the support box (9).
2. The spherical polishing apparatus for processing multispectral zinc sulfide spherical lenses according to claim 1, characterized in that, The bottom of the suction cup pressure chamber (19) is provided with a sealing partition (20). The sealing partition (20) and the fixed suction cup (13) are fixedly connected by fixing screws (22). The sealing partition (20) and the fixed suction cup (13) are provided with a sealing groove and a sealing ring (21) at the mating position.
3. The spherical polishing apparatus for processing multispectral zinc sulfide spherical lenses according to claim 2, characterized in that, The suction cup pressure chamber (19) is connected to the suction cup assembly (23) through a ventilation pipe, and a sealing element is provided at the mating position of the ventilation pipe and the sealing partition (20).
4. The spherical polishing apparatus for processing multispectral zinc sulfide spherical lenses according to claim 3, characterized in that, The lifting frame (5) is a frame structure. Guide ears (14) are fixedly provided on both sides of the top plate of the top frame (2). Guide through holes are provided on the guide ears (14). Guide rods (4) are fixedly provided on the top frame (2). The guide rods (4) pass through the guide through holes.
5. The spherical polishing apparatus for processing multispectral zinc sulfide spherical lenses according to claim 4, characterized in that, The outer side of the connecting mounting base (7) is provided with a locking plane (15), a connecting hole is machined on the locking plane (15), and a threaded hole adapted to the connecting hole is machined in the radial direction of the connecting shaft (17). The locking screw (16) is installed in the connecting hole and the threaded hole.
6. The spherical polishing apparatus for processing multispectral zinc sulfide spherical lenses according to claim 5, characterized in that, The support box (9) is provided with a collection groove (12), and a drain port (10) is provided on the side of the collection groove (12). A sealing block (24) is provided at the drain port (10). An extension end plate (25) is provided at both ends of the sealing block (24). The extension end plate (25) is fixedly connected to the support box (9) by a fastening screw (26). A sealing gasket (27) is provided at the bottom of the sealing block (24) where it mates with the drain port (10).
7. The spherical polishing apparatus for processing multispectral zinc sulfide spherical lenses according to claim 6, characterized in that, The support box (9) has a ventilation window (18) on its side and a switch box (11) on its outer side.