A large-size optical glass grinding platform temperature control device

Abstract

The utility model discloses a kind of large-size optical glass grinding platform temperature control device, it is related to optical manufacturing field, including processing table, the top of processing table is fixed with millstone sleeve, the top of processing table is located in the internal area of millstone sleeve and is equipped with lower millstone, the top of processing table is rotatably connected with rotating column, lower millstone is fixedly connected in rotating column outer side, the top of processing table is fixedly connected with support, support outer side is slidably connected with lifting plate, lifting plate bottom is fixedly connected with cooling seat, the utility model is combined by annular flow guide cavity, flow guide pipe and flow guide groove, realizes that cooling liquid is rapidly injected and uniformly distributed, ensure that grinding area temperature fluctuation range is controlled in suitable range, avoid the deformation or breakage of glass due to thermal stress, improve optical element surface flatness and optical performance, the annular gap of upper millstone outer wall and millstone sleeve inner wall, cooling liquid is conveniently discharged quickly, prevent liquid accumulation influence grinding quality.

Description

Technical Field

[0001] This utility model relates to the field of optical manufacturing, and in particular to a temperature control device for a large-size optical glass grinding platform. Background Technology

[0002] Large-size optical glass, such as astronomical telescope lenses, laser mirrors, and high-precision optical sensors, has extremely high requirements for surface flatness, roughness, and optical uniformity. Grinding, as the core process of optical processing, directly affects the quality of the finished product through temperature control and motion stability.

[0003] During the grinding process, large-size optical glass is prone to localized temperature gradients due to frictional heat generation, leading to uneven distribution of thermal stress on the glass surface and consequently causing warping, cracking, or deterioration of optical performance. Traditional cooling methods, such as single spray or immersion cooling, cannot achieve uniform distribution and dynamic adjustment of the coolant, resulting in large temperature differences in the grinding area, which is difficult to meet the processing requirements of high-precision optical components. Utility Model Content

[0004] The purpose of this invention is to provide a temperature control device for a large-size optical glass grinding platform, which solves the problems of thermal deformation and uneven grinding caused by insufficient temperature control accuracy in traditional grinding processes.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A temperature control device for a large-size optical glass grinding platform includes a processing table, a grinding disc sleeve fixedly mounted on the top of the processing table, a lower grinding disc located inside the grinding disc sleeve on the top of the processing table, a rotating column rotatably connected to the top of the processing table, the lower grinding disc fixedly connected to the outside of the rotating column, a bracket fixedly connected to the top of the processing table, a lifting plate slidably connected to the outside of the bracket, a cooling seat fixedly connected to the bottom of the lifting plate, an upper grinding disc fixedly connected to the bottom of the cooling seat, the upper grinding disc and the lower grinding disc facing each other, a plurality of guide grooves distributed in a ring array on the top of the lower grinding disc, a plurality of guide tubes arranged in a ring array inside the cooling seat, a plurality of small holes corresponding one-to-one with the guide tubes being opened on the bottom of the upper grinding disc, the bottom end of the guide tubes communicating with the corresponding small holes, and two concentrically distributed annular guide cavities being provided on the top of the cooling seat, the top ends of the guide tubes communicating with the corresponding annular guide cavities respectively.

[0006] Preferably, cylinders are symmetrically fixedly installed inside the bracket, and the output end of the cylinder is fixedly connected to the lifting plate, so that the upper grinding disc can be automatically lifted and lowered through the cylinder.

[0007] Preferably, several injection pipes are fixedly connected inside the lifting plate, with the bottom end of the injection pipe facing the annular guide cavity. The injection pipe is directly connected to the annular guide cavity to ensure the accuracy of coolant injection.

[0008] Preferably, a small ring gear is fixedly connected to the outer side of the rotating column, a large ring gear is fixedly connected to the inner wall of the grinding disc sleeve, several positioning plates are provided on the top of the lower grinding disc, and toothed rings are provided on the outer side of the positioning plates. The two sides of the toothed rings are respectively meshed with the small ring gear and the large ring gear. A motor is fixedly installed inside the processing table, and the output end of the motor is fixedly connected to the rotating column.

[0009] Preferably, the positioning plate has a ring array of several circular holes on its surface, which are used to position the optical glass and prevent the glass from shifting or shaking during processing.

[0010] Preferably, both the center of the bottom of the cooling seat and the center of the upper grinding disc are hollow structures, and when the upper grinding disc descends to the working position with the cooling seat, its hollow area corresponds to the position of the rotating column, ensuring the precise alignment of the lower and upper grinding discs and guaranteeing the stability of the grinding process.

[0011] Preferably, an annular gap is left between the outer wall of the lower grinding disc and the inner wall of the grinding disc sleeve to facilitate the discharge of coolant, prevent coolant from accumulating on the surface of the lower grinding disc, and avoid liquid overflow causing corrosion or pollution to the equipment.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] This invention achieves rapid injection and uniform distribution of coolant through the combination of annular guide cavity, guide pipe and guide groove, ensuring that the temperature fluctuation range of the grinding area is controlled within a suitable range, avoiding glass deformation or cracking caused by thermal stress, improving the surface flatness and optical performance of optical components, and the annular gap between the outer wall of the lower grinding disc and the inner wall of the grinding disc sleeve facilitates rapid discharge of coolant and prevents liquid accumulation from affecting the grinding quality.

[0014] This invention achieves a composite motion trajectory between the positioning plate and the lower grinding disc through the cooperation of a small ring gear, a large ring gear, and a gear ring. By combining rotation and revolution modes, it improves grinding uniformity and shortens the processing cycle, making it particularly suitable for high-precision surface treatment of large-size optical glass. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the lower grinding disc structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the cooling seat structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the upper grinding disc structure of this utility model.

[0019] Reference numerals in the attached drawings: 1. Machining table; 2. Grinding disc sleeve; 3. Lower grinding disc; 4. Rotary column; 5. Support; 6. Lifting plate; 7. Cooling seat; 8. Upper grinding disc; 9. Guide groove; 10. Guide pipe; 11. Small hole; 12. Annular guide cavity; 13. Cylinder; 14. Liquid injection pipe; 15. Small ring gear; 16. Large ring gear; 17. Positioning plate; 18. Gear ring; 19. Motor; 20. Round hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1 to 4 This embodiment provides a temperature control device for a large-size optical glass grinding platform, including a processing table 1. A grinding disc sleeve 2 is fixedly provided on the top of the processing table 1. A lower grinding disc 3 is provided in the inner area of ​​the grinding disc sleeve 2 on the top of the processing table 1. A rotating column 4 is rotatably connected to the top of the processing table 1. The lower grinding disc 3 is fixedly connected to the outside of the rotating column 4. A bracket 5 is fixedly connected to the top of the processing table 1. A lifting plate 6 is slidably connected to the outside of the bracket 5. A cooling seat 7 is fixedly connected to the bottom of the lifting plate 6. An upper grinding disc 8 is fixedly connected to the bottom of the cooling seat 7. The upper grinding disc 8 and the lower grinding disc 3 are arranged opposite each other. A number of guide grooves 9 are distributed in a ring array on the top of the lower grinding disc 3. A number of guide tubes 10 are arranged in a ring array inside the cooling seat 7. A number of small holes 11 corresponding to the guide tubes 10 are opened at the bottom of the upper grinding disc 8. The bottom end of the guide tube 10 is connected to the corresponding small hole 11. Two concentric ring guide cavities 12 are provided on the top of the cooling seat 7. The top ends of the guide tubes 10 are connected to the corresponding ring guide cavities 12.

[0022] During the grinding process, the optical glass is placed on top of the lower grinding disc 3. The upper grinding disc 8 is lowered by the cooling seat 7 and the lifting plate 6 to clamp the optical glass in conjunction with the lower grinding disc 3. When cooling is required, the coolant is injected through the annular guide cavity 12, transported through the guide pipe 10 to the small hole 11 at the bottom of the upper grinding disc 8, and further flows to the surface of the lower grinding disc 3. The coolant is guided to be evenly distributed and discharged through the guide groove 9 to achieve temperature control during the grinding process.

[0023] Cylinders 13 are symmetrically fixedly installed inside the bracket 5. The output end of the cylinder 13 is fixedly connected to the lifting plate 6. The cylinder 13 pushes the lifting plate 6 to move vertically along the bracket 5 through the output end, thereby realizing the lifting and lowering of the upper grinding disc 8.

[0024] Several injection pipes 14 are fixedly connected inside the lifting plate 6. The bottom end of the injection pipe 14 is set directly opposite the annular guide cavity 12. The injection pipes 14 inside the lifting plate 6 are connected to the external coolant supply system to inject coolant into the annular guide cavity 12 of the cooling seat 7.

[0025] A small ring gear 15 is fixedly connected to the outer side of the rotating column 4, and a large ring gear 16 is fixedly connected to the inner wall of the grinding disc sleeve 2. Several positioning plates 17 are provided on the top of the lower grinding disc 3. A toothed ring 18 is provided on the outer side of the positioning plate 17. The two sides of the toothed ring 18 are respectively meshed with the small ring gear 15 and the large ring gear 16. A motor 19 is fixedly installed inside the processing table 1. The output end of the motor 19 is fixedly connected to the rotating column 4.

[0026] Motor 19 drives the rotating column 4 to rotate, which in turn drives the lower grinding disc 3 to rotate synchronously. The small ring gear 15 meshes with the gear ring 18, driving the gear ring 18 to revolve around the rotating column 4. At the same time, the gear ring 18 meshes with the large ring gear 16 on the inner wall of the grinding disc sleeve 2 to achieve rotation. The positioning plate 17 moves with the gear ring 18, forming a planetary gear transmission mode to grind the optical glass.

[0027] The positioning plate 17 has a ring array of several circular holes 20 on its surface. The circular holes 20 on the surface of the positioning plate 17 match the outer diameter of the optical glass. During the grinding process, the edge of the glass is embedded in the circular holes 20 to achieve radial positioning. The upper grinding disc 8 and the lower grinding disc 3 work together to clamp the glass and form a stable grinding environment.

[0028] Both the bottom center of the cooling seat 7 and the center of the upper grinding plate 8 are hollow structures. When the upper grinding plate 8 descends to the working position with the cooling seat 7, its hollow area corresponds to the position of the rotating column 4. This is to avoid interference.

[0029] An annular gap is left between the outer wall of the lower grinding disc 3 and the inner wall of the grinding disc sleeve 2. During the grinding process, the coolant discharged from the guide groove 9 can quickly flow into the drain channel opened at the bottom of the grinding disc sleeve 2 through the annular gap, preventing the coolant from accumulating on the surface of the lower grinding disc 3 and avoiding liquid overflow that could cause corrosion or pollution to the equipment.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature control device for a large-size optical glass grinding platform, comprising a processing table (1), a grinding disc sleeve (2) fixedly mounted on the top of the processing table (1), a lower grinding disc (3) located inside the grinding disc sleeve (2) on the top of the processing table (1), a rotating column (4) rotatably connected to the top of the processing table (1), and the lower grinding disc (3) fixedly connected to the outside of the rotating column (4), characterized in that, The processing table (1) is fixedly connected to a bracket (5) at the top. A lifting plate (6) is slidably connected to the outside of the bracket (5). A cooling seat (7) is fixedly connected to the bottom of the lifting plate (6). An upper grinding disc (8) is fixedly connected to the bottom of the cooling seat (7). The upper grinding disc (8) and the lower grinding disc (3) are arranged opposite each other. Several guide grooves (9) are distributed in a ring array at the top of the lower grinding disc (3). Several guide pipes (10) are arranged in a ring array inside the cooling seat (7). Several small holes (11) corresponding to the guide pipes (10) are opened at the bottom of the upper grinding disc (8). The bottom end of the guide pipe (10) is connected to the corresponding small hole (11). Two concentric ring guide cavities (12) are provided at the top of the cooling seat (7). The top end of the guide pipe (10) is connected to the corresponding ring guide cavity (12).

2. The temperature control device for the large-size optical glass grinding platform according to claim 1, characterized in that, The bracket (5) has cylinders (13) symmetrically fixedly installed inside, and the output end of the cylinders (13) is fixedly connected to the lifting plate (6).

3. The temperature control device for the large-size optical glass grinding platform according to claim 2, characterized in that, The lifting plate (6) has several injection pipes (14) fixedly connected inside, and the bottom end of the injection pipes (14) is set directly opposite the annular guide cavity (12).

4. The temperature control device for the large-size optical glass grinding platform according to claim 1, characterized in that, A small ring gear (15) is fixedly connected to the outside of the rotating column (4), and a large ring gear (16) is fixedly connected to the inner wall of the grinding disc sleeve (2). Several positioning plates (17) are provided on the top of the lower grinding disc (3). A toothed ring (18) is provided on the outside of the positioning plate (17). The two sides of the toothed ring (18) are respectively meshed with the small ring gear (15) and the large ring gear (16). A motor (19) is fixedly installed inside the processing table (1). The output end of the motor (19) is fixedly connected to the rotating column (4).

5. The temperature control device for the large-size optical glass grinding platform according to claim 4, characterized in that, The positioning plate (17) has a ring array of several circular holes (20) distributed on its surface.

6. The temperature control device for a large-size optical glass grinding platform according to claim 1, characterized in that, The cooling seat (7) has a hollow structure at the bottom center and the upper grinding disc (8) center. When the upper grinding disc (8) descends to the working position with the cooling seat (7), its hollow area corresponds to the position of the rotating column (4).

7. The temperature control device for a large-size optical glass grinding platform according to claim 1, characterized in that, An annular gap is left between the outer wall of the lower grinding disc (3) and the inner wall of the grinding disc sleeve (2).

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