Optical lens processing and finishing device

Abstract

The application discloses an optical lens processing fine grinding device and belongs to the technical field of optical lens processing. The device comprises a base, a fixing frame fixedly connected to the base, a hydraulic cylinder installed at the top of the fixing frame, a moving plate fixedly connected to the piston rod of the hydraulic cylinder and penetrating through the fixing frame, a polishing device for providing fine polishing for optical lenses, a fixing box fixed to the base and located below the polishing device, a protective cover arranged on the top of the fixing box, and water spraying pipes arranged around the protective cover. The protective cover blocks the polishing debris of the lenses to prevent pollution and safety hazards, the water spraying pipes flush the lens surface debris to ensure polishing accuracy, the through hole of the polishing device in the center of the protective cover ensures normal polishing operation, and the device forms a processing space with good sealing performance to enhance the protection effect.

Description

Technical Field

[0001] This invention relates to the field of optical lens processing technology, specifically to an optical lens processing and fine grinding apparatus. Background Technology

[0002] Optical lenses are transparent media with one or more curved surfaces made of optical materials (such as glass, resin, etc.). They are mainly used to correct vision or improve visual function. In the optical lens manufacturing process, fine grinding is a key process that determines the optical performance and surface precision of the lens.

[0003] Traditional fine grinding equipment lacks an effective protective structure during grinding, and the debris generated during lens grinding is prone to splashing and spreading, which not only pollutes the processing environment but may also pose a safety hazard to operators. At the same time, debris adhering to the lens surface will affect the grinding accuracy. In order to solve the above problems, an improved optical lens processing fine grinding equipment has been proposed. Summary of the Invention

[0004] The purpose of this invention is to provide an optical lens processing and polishing device. By installing a protective cover on the top of the fixed box and installing water spray pipes around it, the protective cover blocks lens polishing debris to prevent pollution and safety hazards, the water spray pipes wash away debris on the lens surface to maintain polishing accuracy, and the through hole in the center of the protective cover corresponding to the polishing device ensures that the polishing operation can proceed normally. It also forms a processing space with better sealing to enhance the protective effect, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an optical lens processing and fine grinding device, including a base, a fixed frame fixedly connected to the base, a hydraulic cylinder installed on the top of the fixed frame, a movable plate fixedly connected to the piston rod of the hydraulic cylinder through the fixed frame, and a grinding device for providing fine grinding of optical lenses installed on the lower surface of the movable plate. It also includes a fixing box, which is fixed on the base and located below the grinding device. The top of the fixing box is covered with a protective cover, and water spray pipes are installed around the protective cover. A through hole is opened at the center of the protective cover, corresponding to the position of the grinding device. The fixed box is equipped with a positioning mechanism and a placement platform. The positioning mechanism is used to limit the position of the placement platform, and the placement platform is used to place and install optical lenses.

[0006] Preferably, the positioning mechanism includes four fixed posts, which are evenly distributed around the inner cavity of the fixed box. Limiting grooves are formed around the upper end of each fixed post. A sleeve is fixedly connected to the center of the bottom of the placement platform. A limiting block is integrally formed inside the sleeve at the position corresponding to the limiting groove. The placement platform is engaged with the fixed posts by the cooperation of the limiting block and the limiting groove.

[0007] Preferably, the positioning mechanism further includes a fixing ring, which is fixed to the inner wall of the fixing box. A limiting plate is installed on the fixing ring by fasteners. A limiting hole is opened on the surface of the limiting plate at the position corresponding to the installation position of the placement platform. The limiting plate is engaged with the placement platform through the limiting hole, and a plurality of drainage holes are opened on the surface of the limiting plate.

[0008] Preferably, the number of placement platforms is the same as the number of fixed columns. Each placement platform includes a base and a placement plate, which are integrally formed. The surface of the placement plate is provided with an installation groove, which is set with different diameters.

[0009] Preferably, the cross-sectional area of ​​the chassis is larger than that of the placement plate, and the chassis is located below the placement plate. The diameter of the limiting ring on the limiting plate is the same as that of the placement plate. The placement plate passes through the limiting ring through the limiting plate, and the lower surface of the limiting plate is engaged with the chassis.

[0010] Preferably, a support frame is fixedly connected to the lower end of the inner wall of the fixed box, and filter cotton is placed on the surface of the support frame.

[0011] Preferably, sliders are fixedly connected to both ends of the movable plate, and a groove is provided on the inner wall of the fixed frame at the position corresponding to the slider.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention provides an optical lens processing and polishing device. By covering the top of the fixed box with a protective cover and installing water spray pipes around the protective cover, on the one hand, the protective cover can block the lens debris generated during the polishing process, avoiding debris splashing and contaminating the processing environment or causing safety hazards to the operators. On the other hand, the water spray pipes can wash away the debris attached to the lens surface in time, preventing the debris from affecting the polishing accuracy. At the same time, in conjunction with the through hole in the center of the protective cover corresponding to the polishing device, it can not only ensure the normal operation of the polishing device, but also form a processing space with better sealing, further enhancing the protective effect.

[0013] 2. This invention provides an optical lens processing and fine grinding device. By limiting the placement stage through the positioning mechanism in the fixed box, and in conjunction with the placement stage for placing the lens, the lens can be stably installed and positioned. This avoids the problem of lens displacement and shaking during grinding caused by the lack of a stable positioning structure in traditional devices, ensuring the positional stability of the lens during the grinding process. This provides a guarantee for improving the flatness and dimensional accuracy of the lens. At the same time, the cooperation between the placement stage and the positioning mechanism also makes the lens installation operation more convenient, indirectly improving the processing efficiency.

[0014] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the fixing box, positioning mechanism, and placement platform structure of the present invention; Figure 3 This is a partial exploded cross-sectional view of the fixing box, positioning mechanism and placement platform structure of the present invention; Figure 4 This is an exploded view of the support frame and filter cotton structure of the present invention; Figure 5 This is a partially exploded view of the positioning mechanism structure of the present invention; Figure 6 This is a bottom view of the placement platform structure of the present invention; Figure 7 This is a partial cross-sectional view of the fixed box structure of the present invention.

[0016] The following are the labeling elements in the diagram: 1. Base; 2. Fixing frame; 3. Hydraulic cylinder; 4. Moving plate; 5. Grinding device; 6. Fixing box; 7. Protective cover; 8. Water spray pipe; 9. Through hole; 10. Positioning mechanism; 101. Fixing column; 102. Limiting groove; 103. Sleeve; 104. Limiting block; 105. Fixing ring; 106. Limiting plate; 107. Limiting hole; 108. Drain hole; 11. Placement platform; 111. Chassis; 112. Placement tray; 113. Mounting groove; 12. Support frame; 13. Filter cotton; 14. Sliding block; 15. Slide groove. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] This invention provides, for example Figures 1-7 The optical lens processing and fine grinding device shown includes a base 1, a fixed frame 2 fixedly connected to the base 1, a hydraulic cylinder 3 installed on the top of the fixed frame 2, a movable plate 4 fixedly connected through the piston rod of the hydraulic cylinder 3 through the fixed frame 2, and a grinding device 5 for providing fine grinding of the optical lens installed on the lower surface of the movable plate 4. The base 1 provides stable support for the entire device, and the fixed frame 2 serves as the mounting carrier for the grinding device 5. The hydraulic cylinder 3 at the top of the frame drives the piston rod to extend and retract through hydraulic pressure. The piston rod drives the movable plate 4 fixed to it to move up and down, thereby causing the grinding device 5 mounted on the lower surface of the movable plate 4 to rise and fall synchronously. This allows for adjustment of the distance between the grinding device 5 and the optical lens below. When the grinding device 5 contacts the lens, it can perform fine grinding operations on the lens. By driving the grinding device 5 to rise and fall through the hydraulic cylinder 3, the contact force and grinding depth between the grinding device 5 and the lens can be precisely adjusted to meet the fine grinding requirements of different optical lenses and avoid damage to the lens or substandard grinding due to improper grinding force. The specific working principle of the grinding device 5 is based on existing technology, and detailed information can be found through Baidu search. Therefore, this invention does not provide a detailed operating procedure. It also includes a fixing box 6, which is fixed on the base 1 and located below the grinding device 5. The top of the fixing box 6 is covered with a protective cover 7, and water spray pipes 8 are installed around the protective cover 7. A through hole 9 is opened at the center of the protective cover 7 corresponding to the position of the grinding device 5. The fixed box 6 is equipped with a positioning mechanism 10 and a placement platform 11. The positioning mechanism 10 is used to limit the position of the placement platform 11, and the placement platform 11 is used to place and install the optical lens. The fixed box 6 is fixed on the base 1 and located directly below the grinding device 5, and is used to support the positioning mechanism 10 and the placement table 11. The protective cover 7 on the top of the fixed box 6 can cover the grinding area. The water spray pipes 8 around the protective cover 7 can spray water onto the grinding area. At the same time, the through hole 9 in the center of the protective cover 7 provides a channel for the grinding device 5 to extend into the grinding area, ensuring that the grinding device 5 can operate normally within the protective structure. The positioning mechanism 10 inside the fixed box 6 limits the position of the placement table 11, and the placement table 11 is used to stably place the optical lens, so that the lens remains in a fixed position during the grinding process. The protective cover 7 effectively blocks the lens debris generated during the polishing process, preventing debris from splashing and contaminating the processing environment, while also avoiding safety hazards to operators caused by debris. The water spray pipe 8 is connected to an external water supply device to deliver water to the water spray pipe 8. The water sprayed through the water spray pipe can promptly wash away the debris attached to the lens surface, preventing the debris from affecting the polishing accuracy.

[0019] The positioning mechanism 10 includes four fixed posts 101, which are evenly distributed around the inner cavity of the fixed box 6. Limiting grooves 102 are formed around the upper end of the fixed posts 101. A sleeve 103 is fixedly connected to the center of the bottom of the placement platform 11. A limiting block 104 is integrally formed inside the sleeve 103 at the position corresponding to the limiting groove 102. The placement platform 11 is engaged with the fixed posts 101 through the cooperation of the limiting block 104 and the limiting groove 102. The four fixed posts 101 in the positioning mechanism 10 are evenly distributed around the inner cavity of the fixed box 6, forming symmetrical support positioning points. The limiting grooves 102 opened around the upper end of the fixed posts 101 match the limiting blocks 104 in the sleeve 103 fixed at the bottom center of the placement platform 11. When installing the placement platform 11, the sleeve 103 is put on the fixed posts 101, so that the limiting blocks 104 are inserted into the limiting grooves 102. Through the snap-fit ​​cooperation between the limiting blocks 104 and the limiting grooves 102, the placement platform 11 is initially positioned on the fixed posts 101, restricting the rotation and movement of the placement platform 11 in the horizontal direction. The placement platform 11 is installed by snapping the sleeve 103 with the fixed column 101. No complicated tools are required, and the operator can complete the installation and disassembly of the placement platform 11, which improves the operating efficiency of the equipment and facilitates the subsequent replacement of placement platforms 11 of different specifications or maintenance of the placement platform 11.

[0020] The positioning mechanism 10 also includes a fixing ring 105, which is fixed to the inner wall of the fixing box 6. A limiting plate 106 is installed on the fixing ring 105 by fasteners. A limiting hole 107 is opened on the surface of the limiting plate 106 at the position corresponding to the installation position of the placement platform 11. The limiting plate 106 is engaged with the placement platform 11 through the limiting hole 107, and a plurality of drainage holes 108 are opened on the surface of the limiting plate 106. The fixing ring 105 is fixed to the inner wall of the fixing box 6 as the mounting base of the limiting plate 106. The limiting plate 106 is fixed to the fixing ring 105 by fasteners (such as bolts, screws, etc.) so that the limiting plate 106 is kept in a horizontal and stable state. The limiting hole 107 on the surface of the limiting plate 106 corresponds to the installation position of the placement platform 11 and can be interlocked with the placement platform 11 to further restrict the movement of the placement platform 11 in the vertical direction. At the same time, the multiple drainage holes 108 opened on the surface of the limiting plate 106 can allow the water sprayed from the water spray pipe 8 during the grinding process and the sewage generated by rinsing to pass smoothly and flow into the bottom of the fixing box 6. By engaging the limiting plate 106 with the placement stage 11, the vertical displacement of the placement stage 11 is further restricted, so that the placement stage 11 remains stable in the up and down direction, completely preventing the lens from shaking or shifting during the grinding process and ensuring grinding accuracy. The drainage hole 108 is designed to prevent sewage from accumulating on the limiting plate 106 and to prevent sewage from soaking the lens. The limiting plate 106 is installed with fasteners, which makes it easy for operators to remove the limiting plate 106. This avoids the fasteners from connecting with the placement table 11, reducing damage to the placement table 11, and thus facilitating the cleaning, maintenance or replacement of the limiting plate 106 or the placement table 11.

[0021] The number of placement platforms 11 is the same as the number of fixed columns 101. Each placement platform 11 includes a base 111 and a placement plate 112. The base 111 and the placement plate 112 are integrally formed. The surface of the placement plate 112 is provided with an installation groove 113. The installation grooves 113 are set with different diameters. The number of placement platforms 11 is the same as the number of fixing posts 101, ensuring that each placement platform 11 can be positioned and installed corresponding to a fixing post 101. Each placement platform 11 consists of an integrally formed base 111 and a placement plate 112. The base 111 provides support for the placement plate 112. Different diameter mounting slots 113 are opened on the surface of the placement plate 112, which can embed the lens into the corresponding mounting slot 113 according to the size and specifications of the optical lens, so as to realize the personalized placement and fixation of the lens. The different diameter mounting slots 113 enable the placement stage 11 to accommodate optical lenses of various specifications, eliminating the need to manufacture separate placement stages 11 for lenses of different sizes, thus improving the versatility and applicability of the device. The lens is embedded into the corresponding mounting groove 113. The mounting groove 113 plays a certain limiting role for the lens, so that the lens is firmly fixed during the polishing process and the lens slippage is prevented from causing the polishing position deviation.

[0022] The cross-sectional area of ​​the chassis 111 is larger than that of the placement plate 112, and the chassis 111 is located below the placement plate 112. The diameter of the limiting ring on the limiting plate 106 is the same as that of the placement plate 112. The placement plate passes through the limiting plate 106 through the limiting ring, and the lower surface of the limiting plate 106 is engaged with the chassis 111. The base 111 of the placement stage 11 has a larger cross-sectional area than the placement plate 112, and the base 111 is located below the placement plate 112, forming a structure that is wider at the bottom and narrower at the top. The diameter of the upper limit ring of the limiting plate 106 is the same as the diameter of the placement plate 112. When the placement stage 11 is installed, the placement plate 112 can pass through the limiting ring, while the base 111 is blocked by the limiting ring due to its larger cross-sectional area. This causes the lower surface of the limiting plate 106 to engage with the upper surface of the base 111, further restricting the vertical displacement of the placement stage 11 and also providing support for the placement stage 11. Through the engagement of the base 111 and the limiting plate 106, a double vertical limiting is formed, which makes the placement stage 11 completely fixed in the vertical direction. Even when the grinding device 5 applies a large pressure, the placement stage 11 will not loosen, ensuring that the lens is always in a stable grinding position. By supporting the chassis 111 with the limiting plate 106, the force on the placement platform 11 is evenly transmitted from the chassis 111 to the limiting plate 106, and then from the limiting plate 106 to the fixing ring 105 and the fixing box 6, so as to avoid damage caused by excessive local stress on the placement platform 11 and extend the service life of the placement platform 11.

[0023] A support frame 12 is fixedly connected to the lower end of the inner wall of the fixed box 6, and a filter cotton 13 is placed on the surface of the support frame 12; The support frame 12 at the lower end of the inner wall of the fixed box 6 provides a support platform for the filter cotton 13, so that the filter cotton 13 is placed horizontally. During the polishing process, the water sprayed from the water spray pipe 8 carries the debris and flows through the water leakage hole 108 of the limiting plate 106 before falling into the bottom of the fixed box 6. When the sewage flows through the filter cotton 13, the filter cotton 13 can filter out the lens debris in the sewage, so that the filtered water remains at the bottom of the fixed box 6 for subsequent treatment or recycling. The filter cotton 13 effectively filters lens debris in wastewater, preventing debris from accumulating at the bottom of the fixed box 6 and clogging the drain outlet of the fixed box 6. The filter cotton 13 is made of polyester fiber needle-punched cotton, which can withstand the impact of wastewater and the slight rubbing during regular cleaning, and is not prone to fiber shedding.

[0024] The filtered wastewater, free of debris, falls to the bottom of the fixed box 6. A drain pipe is then installed at the bottom of the fixed box 6 to discharge the filtered water.

[0025] The two ends of the movable plate 4 are fixedly connected to sliders 14, and the inner wall of the fixed frame 2 is provided with a groove 15 at the position corresponding to the slider 14; The sliders 14 fixed at both ends of the movable plate 4 are matched with the corresponding grooves 15 on the inner wall of the fixed frame 2. When the hydraulic cylinder 3 drives the movable plate 4 to move up and down, the sliders 14 slide synchronously in the grooves 15. The grooves 15 guide the movement direction of the sliders 14, limiting the left and right deviation or swaying of the movable plate 4 during the up and down movement. The cooperation between the sliders 14 and the grooves 15 provides precise guidance for the movable plate 4, ensuring that the movable plate 4 always moves up and down in the vertical direction, avoiding the deviation of the movable plate 4 that would cause the position deviation of the grinding device 5, thereby ensuring that the grinding device 5 can accurately act on the grinding area of ​​the lens and improve the grinding accuracy.

[0026] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical lens processing and fine grinding apparatus, characterized in that: Includes a base (1), on which a fixed frame (2) is fixedly connected, and a hydraulic cylinder (3) is installed on the top of the fixed frame (2). The piston rod of the hydraulic cylinder (3) passes through the fixed frame (2) and is fixedly connected to a movable plate (4). A polishing device (5) for providing fine polishing to optical lenses is installed on the lower surface of the movable plate (4). It also includes a fixed box (6), which is fixed on the base (1) and located below the grinding device (5). The top of the fixed box (6) is covered with a protective cover (7), and water spray pipes (8) are installed around the protective cover (7). A through hole (9) is opened at the center of the protective cover (7) corresponding to the position of the grinding device (5). The fixed box (6) is provided with a positioning mechanism (10) and a placement platform (11). The positioning mechanism (10) is used to limit the position of the placement platform (11), and the placement platform (11) is used to place and install optical lenses.

2. The optical lens processing and fine grinding apparatus according to claim 1, characterized in that: The positioning mechanism (10) includes four fixed posts (101), which are evenly distributed around the inner cavity of the fixed box (6). Limiting grooves (102) are opened around the upper end of the fixed posts (101). A sleeve (103) is fixedly connected to the center of the bottom of the placement platform (11). A limiting block (104) is integrally formed in the sleeve (103) at the position corresponding to the limiting groove (102). The placement platform (11) is engaged with the fixed posts (101) through the cooperation of the limiting block (104) and the limiting groove (102).

3. The optical lens processing and fine grinding apparatus according to claim 2, characterized in that: The positioning mechanism (10) also includes a fixing ring (105), which is fixed to the inner wall of the fixing box (6). A limiting plate (106) is installed on the fixing ring (105) by fasteners. A limiting hole (107) is opened on the surface of the limiting plate (106) at the position corresponding to the installation position of the placement platform (11). The limiting plate (106) is engaged with the placement platform (11) through the limiting hole (107). A plurality of drainage holes (108) are opened on the surface of the limiting plate (106).

4. The optical lens processing and fine grinding apparatus according to claim 3, characterized in that: The number of placement platforms (11) is the same as the number of fixed columns (101). Each placement platform (11) includes a base (111) and a placement tray (112). The base (111) and the placement tray (112) are integrally formed. The surface of the placement tray (112) is provided with an installation groove (113). The installation groove (113) is set with different diameters.

5. The optical lens processing and polishing apparatus according to claim 4, characterized in that: The cross-sectional area of ​​the chassis (111) is larger than that of the placement plate (112), and the chassis (111) is located below the placement plate (112). The diameter of the limiting ring on the limiting plate (106) is the same as that of the placement plate (112). The placement plate passes through the limiting plate (106) through the limiting ring. The lower surface of the limiting plate (106) is engaged with the chassis (111).

6. The optical lens processing and fine grinding apparatus according to claim 5, characterized in that: A support frame (12) is fixedly connected to the lower end of the inner wall of the fixed box (6), and a filter cotton (13) is placed on the surface of the support frame (12).

7. The optical lens processing and fine grinding apparatus according to claim 6, characterized in that: The movable plate (4) is fixedly connected to two sliders (14) at both ends, and the inner wall of the fixed frame (2) is provided with a groove (15) at the position corresponding to the slider (14).

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