Superfinishing device based on large-diameter lens mold pressing mold and using method of superfinishing device

Abstract

The invention provides a superfinishing device based on a large-diameter lens mold pressing mold and a using method of the superfinishing device, and relates to the technical field of superfinishing device.The superfinishing device comprises a rack, four sets of universal wheels are symmetrically arranged at the bottom of the rack, and a transmission mechanism is fixedly connected to the surface of the top end of the rack; the two sets of transmission blocks are driven by the rotating two-way lead screw to gather and move towards the middle of the two-way lead screw, the two sets of protection covers are attached, meanwhile, the two sets of protection covers drive the two sets of clamping plates to clamp a mold through the flow guide plates, waste splashed during mold machining is shielded through the protection covers, and the waste slides to the rack along the flow guide plates; according to the waste cleaning device, the waste materials are stacked together, so that the problems that the skins of operators are scratched by the waste materials and the waste materials are difficult to clean in a conventional cleaning mode due to small particle sizes after the waste materials are scattered everywhere in a workshop are solved, and workers can conveniently clean the waste materials by stacking the waste materials.

Description

Technical Field

[0001] The present invention relates to the technical field of ultra-precision machining devices, in particular to an ultra-precision machining device based on a large-aperture lens molding die. Background Art

[0002] Ultra-precision machining equipment for large-aperture lens molding dies is a key piece of equipment in optical manufacturing. Its background technology stems from the inadequate precision and inefficiency of conventional optical component machining. With the surging demand for large-aperture (typically diameters ≥200mm) aspheric lenses in fields like aerospace and semiconductor lithography, traditional grinding and polishing processes have struggled to meet the nanometer-level surface accuracy and sub-surface quality requirements. Compression molding technology, which uses high-temperature and high-pressure compression to press glass preforms into shape, significantly reduces subsequent processing. However, the ultra-precision machining of the mold itself presents a technical bottleneck—it requires achieving a mold surface error of ≤50nm and a surface roughness of ≤1nm Ra. Current mainstream technologies combine ultra-precision turning, ion beam shaping, and magnetorheological polishing.

[0003] In existing technology, the ultra-finishing process of large-diameter lens molding dies produces small, hard, and sharp-edged waste from high-hardness materials like tungsten carbide and ceramics. These waste particles are prone to splashing under high-speed grinding conditions. This splashing waste not only scratches the operator's skin and bruises their eyes, posing a serious safety hazard, but also scatters throughout the workshop. Due to its tiny particle size, it is difficult to clean using conventional cleaning methods and can easily cause secondary dusting. Summary of the Invention

[0004] The present invention mainly provides a super finishing device based on a large-aperture lens molding die and a use method thereof.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: an ultra-precision processing device based on a large-aperture lens molding mold includes a frame, four sets of universal wheels are symmetrically arranged at the bottom of the frame, a transmission mechanism is fixedly connected to the top surface of the frame, a first motor is fixedly connected to the front end surface of the transmission mechanism, a fine-grained oilstone is fixedly connected to the output end of the first motor, a protective component is provided on the surface of the frame below the fine-grained oilstone, and a cleaning component is provided on the bottom surface of the frame below the protective component.

[0006] Preferably, the protective assembly includes a movable warehouse fixedly connected to the top surface of the frame, a bidirectional screw rod is rotatably connected in the movable warehouse, a second motor is fixedly connected to the right surface of the movable warehouse, the output end of the second motor passes through the movable warehouse and is fixedly connected to one end of the bidirectional screw rod, two groups of transmission blocks are threadedly connected to the bidirectional screw rod, the rear end surfaces of the two groups of transmission blocks are fixedly connected to protective covers, the three corresponding inner walls of the two groups of protective covers are fixedly connected to guide plates, and the one side surfaces of the two groups of guide plates are fixedly connected to clamping plates.

[0007] Preferably, sealing strips are glued to the surfaces of one side corresponding to the two groups of protective covers, and the two groups of protective covers are both transparent in design.

[0008] Preferably, the top surfaces of the two groups of clamping plates are designed to be inclined, and anti-slip teeth are provided on the corresponding side surfaces of the two groups of clamping plates.

[0009] Preferably, the two groups of guide plates are both designed to be inclined, and the inclination direction is toward the guide groove.

[0010] Preferably, the cleaning assembly includes a guide groove opened on the surface of the frame below the protective cover, support seats are fixedly connected to the inner walls of the front and rear ends of the guide groove, a mold is placed on the support seat, two sets of guide rails are symmetrically fixedly connected to the outer wall of the frame below the guide groove, sliders are slidably connected in the two sets of guide rails, and drawers are fixedly connected to the corresponding side surfaces of the two sets of sliders.

[0011] Preferably, a handle may be provided on the rear end surface of the drawer, and the handle may be designed in a C-shape or a circular ring shape.

[0012] Preferably, the slider is T-shaped, and a through hole adapted to the slider is provided in the guide rail.

[0013] Preferably, the bottom of the guide groove is designed to be inclined, and the inclination direction is toward the drawer.

[0014] The present invention also adopts the following technical solution, and the specific method is as follows: S1. Push the frame and use the four sets of universal wheels at the bottom to move the equipment to the designated processing position to ensure the stability of the equipment.

[0015] S2: The second motor in the protective assembly is activated. Its output drives the bidirectional screw in the movable chamber to rotate. The screw, through its threads, drives the two sets of transmission blocks toward the center, driving the rear protective shield to move synchronously until the two sets of shields are aligned. As the shield moves, the guide plate on the inner wall drives the clamping plate to clamp the mold placed on the support base. The inclined surface and anti-slip teeth at the top of the clamping plate ensure the mold is stable and prevent shaking during processing.

[0016] S3. Turn on the first motor at the front end of the transmission mechanism, and its output end drives the fine-grained oilstone to rotate at high speed to perform super-finishing on the mold surface.

[0017] S4. Waste generated during processing is shielded by a transparent protective cover to prevent splashing. The sealing strips on the edge of the protective cover prevent waste from flying out of the gap. The waste slides along the inclined surface of the guide plate into the guide groove on the surface of the frame. The inclined bottom of the guide groove guides the waste toward the drawer.

[0018] S5. The waste falls into the drawer below through the guide trough. After processing is completed, pull the C-shaped or ring-shaped handle at the rear end of the drawer to slide the slider in the guide rail, pull the drawer out of the rack, and clean the waste in the drawer for subsequent secondary use or processing. After cleaning, push the drawer back to its original position along the guide rail.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are: 1. In the present invention, the rotating bidirectional screw drives the two sets of transmission blocks to move toward the middle of the bidirectional screw, and the two sets of protective covers are fitted together. At the same time, the two sets of protective covers drive the two sets of clamping plates to clamp the mold through the guide plates. The protective covers then block the waste splashed during mold processing, and make the waste slide along the guide plates to the frame and pile up together, thereby solving the problem that the waste not only scratches the operator's skin, but also is scattered all over the workshop and is difficult to clean up by conventional cleaning methods due to its small particle size. By piling up the waste, it is convenient for the staff to clean up the waste.

[0020] 2. In the present invention, a guide groove is opened on the surface of the frame below the guide plate, so that the waste passes through the guide plate into the guide groove, and then falls into the drawer through the guide groove, and then the drawer is driven by the slider to slide in the guide rail, thereby facilitating the collection of the waste by the staff and facilitating the secondary utilization of the waste by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of a superfinishing device based on a large-aperture lens molding die proposed by the present invention; Figure 2 This is a bottom-up structural schematic diagram of a superfinishing device based on a large-aperture lens molding die proposed by the present invention; Figure 3 This is a schematic diagram of the partial cross-sectional structure of the protective component of the ultra-precision machining device based on the large-aperture lens molding die proposed by the present invention; Figure 4 This is a schematic diagram of the explosion structure of the protective component of the ultra-precision processing device based on the large-aperture lens molding die proposed by the present invention; Figure 5The present invention proposes a schematic diagram of the exploded structure of a storage component of a super-finishing device based on a large-aperture lens molding die.

[0022] Legend: 1. Frame; 2. Universal wheel; 3. Transmission mechanism; 4. First motor; 5. Fine-grained oilstone; 6. Protective assembly; 61. Movable bin; 62. Bidirectional screw; 63. Second motor; 64. Transmission block; 65. Protective cover; 66. Guide plate; 67. Clamping plate; 7. Cleaning assembly; 71. Guide trough; 72. Guide rail; 73. Slider; 74. Drawer; 8. Support base. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] See also Figure 1-Figure 5 The present invention provides a technical solution: a super-finishing device based on a large-aperture lens molding die, comprising a frame 1, four sets of universal wheels 2 symmetrically arranged at the bottom of the frame 1, a transmission mechanism 3 fixedly connected to the top surface of the frame 1, a first motor 4 fixedly connected to the front end surface of the transmission mechanism 3, a fine-grained oilstone 5 fixedly connected to the output end of the first motor 4, a protective component 6 is arranged on the surface of the frame 1 below the fine-grained oilstone 5, and a cleaning component 7 is arranged on the bottom surface of the frame 1 below the protective component 6.

[0026] like Figure 1 and 3 as well as Figure 4 As shown, the protective assembly 6 includes a movable bin 61 fixedly connected to the top surface of the frame 1, a bidirectional screw rod 62 is rotatably connected in the movable bin 61, a second motor 63 is fixedly connected to the right surface of the movable bin 61, the output end of the second motor 63 passes through the movable bin 61 and is fixedly connected to one end of the bidirectional screw rod 62, two groups of transmission blocks 64 are threadedly connected to the bidirectional screw rod 62, the rear end surfaces of the two groups of transmission blocks 64 are fixedly connected to protective covers 65, the three corresponding inner walls of the two groups of protective covers 65 are fixedly connected to guide plates 66, and the one side surfaces corresponding to the two groups of guide plates 66 are fixedly connected to clamping plates 67.

[0027] The rotating bidirectional screw 62 drives the two sets of transmission blocks 64 to move toward the middle of the bidirectional screw 62, and makes the two sets of protective covers 65 fit together. At the same time, the two sets of protective covers 65 drive the two sets of clamping plates 67 to clamp the mold through the guide plate 66. The protective cover 65 then blocks the waste splashed during mold processing, and makes the waste slide along the guide plate 66 onto the frame 1 and pile up together, thereby solving the problem that the waste not only scratches the operator's skin, but also is scattered all over the workshop and is difficult to clean up with conventional cleaning methods due to its small particle size. By piling up the waste, it is convenient for the staff to clean up the waste.

[0028] like Figure 4 As shown, sealing strips are glued to the surfaces of the corresponding sides of the two sets of protective covers 65. Both sets of protective covers 65 are transparent in design, which can increase the sealing performance between the two sets of protective covers 65 and prevent the gap between the two sets of protective covers 65 from becoming larger, causing splashing waste to fly out of the gap and scratch the operator's skin and bruise the eyes. At the same time, the transparent design of the protective cover 65 can also make it easier for the staff to understand the processing status of the mold from the outside of the protective cover 65.

[0029] like Figure 4 As shown, the top surfaces of the two groups of clamping plates 67 are designed to be inclined, and the corresponding side surfaces of the two groups of clamping plates 67 are provided with anti-slip teeth, which can enable the waste falling on the top of the clamping plates 67 to slide from the inclined surface on the clamping plates 67 to the frame 1, thereby achieving the purpose of piling up the waste and preventing the waste from piling up on the clamping plates 67, which makes it inconvenient for the staff to clean up the waste. At the same time, the anti-slip teeth arranged on the corresponding side of the two groups of clamping plates 67 can increase the friction of the two groups of clamping plates 67 on the mold, thereby improving the stability of the clamping plates 67 clamping the mold.

[0030] like Figure 1 and Figure 5 As shown, the cleaning assembly 7 includes a guide groove 71 opened on the surface of the frame 1 below the protective cover 65, and the inner walls of the front and rear ends of the guide groove 71 are fixedly connected to the support base 8, and a mold is placed on the support base 8. Two sets of guide rails 72 are symmetrically fixedly connected to the outer wall of the frame 1 below the guide groove 71, and sliders 73 are slidably connected in the two sets of guide rails 72. Drawers 74 are fixedly connected to the corresponding side surfaces of the two sets of sliders 73.

[0031] By opening a guide groove 71 on the surface of the frame 1 below the guide plate 66, the waste passes through the guide plate 66 into the guide groove 71, and then falls into the drawer 74 through the guide groove 71, and then the slider 73 drives the drawer 74 to slide in the guide rail 72, thereby making it convenient for the staff to collect the waste and to facilitate the staff to reuse the waste.

[0032] like Figure 5As shown, a handle may be provided on the rear end surface of the drawer 74, and the handle may be C-shaped and circular-ring-shaped, which can facilitate the staff to operate the drawer 74, so that the drawer 74 drives the slider 73 to slide in the guide rail 72, so that the drawer 74 slides out from the guide rail 72, and it is also convenient for the staff to use the handle to carry the drawer 74.

[0033] like Figure 5 As shown, the slider 73 is T-shaped, and a through hole adapted to the slider 73 is opened in the guide rail 72, which can increase the contact area between the slider 73 and the guide rail 72, thereby improving the stability of the slider 73 sliding back and forth in the guide rail 72, and at the same time preventing the slider 73 from sliding freely in the guide rail 72, causing the drawer 74 to be misaligned with the guide groove 71 when in use, and causing the waste in the guide groove 71 to fall to the ground, making it difficult to clean.

[0034] The usage and working principle of this device: When in use, first, the second motor 63 drives the bidirectional screw 62 to rotate in the movable bin 61, and the rotating bidirectional screw 62 synchronously drives the two sets of transmission blocks 64 to move toward the middle of the bidirectional screw 62, and makes the two sets of protective covers 65 fit together. At the same time, the two sets of protective covers 65 drive the two sets of clamping plates 67 to clamp the mold through the guide plate 66, and then the protective cover 65 is used to block the waste splashed during the mold processing, and the waste is made to slide along the guide plate 66 to the frame 1 and pile up together, so as to facilitate cleaning by the staff.

[0035] The method of using the ultra-precision processing device based on the large-diameter lens molding die is as follows: S1. Push the frame 1 and use the four sets of universal wheels 2 at the bottom to move the equipment to the designated processing position to ensure the stability of the equipment.

[0036] S2. Start the second motor 63 in the protective assembly 6. Its output drives the bidirectional screw 62 in the movable chamber 61 to rotate. The bidirectional screw 62 drives the two sets of transmission blocks 64 to converge toward the center through the thread, driving the protective cover 65 at the rear end to move synchronously until the two sets of protective covers 65 are in contact. As the protective cover 65 moves, the guide plate 66 on the inner wall drives the clamping plate 67 to clamp the mold placed on the support base 8. The inclined surface and anti-slip teeth on the top of the clamping plate 67 ensure the stability of the mold and prevent it from shaking during processing.

[0037] S3. Turn on the first motor 4 at the front end of the transmission mechanism 3. The output end of the motor drives the fine-grained oilstone 5 to rotate at high speed to perform super-finishing on the mold surface.

[0038] S4. Waste generated during processing is shielded by a transparent protective cover 65 to prevent splashing. The sealing strip on the edge of the protective cover 65 prevents waste from flying out of the gap. The waste slides along the inclined surface of the guide plate 66 into the guide groove 71 on the surface of the frame 1. The inclined bottom design of the guide groove 71 guides the waste toward the drawer 74.

[0039] S5. The waste falls into the drawer 74 below through the guide groove 71. After processing is completed, the C-shaped or ring-shaped handle at the rear end of the drawer 74 is pulled to slide the slider 73 in the guide rail 72, and the drawer 74 is pulled out from the frame 1. The waste in the drawer 74 is cleaned for subsequent secondary use or processing. After cleaning, the drawer 74 is pushed back to its original position along the guide rail 72.

[0040] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other form. Any person skilled in the art may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An ultra-precision processing device based on a large-aperture lens molding die, comprising a frame (1), characterized in that: Four sets of universal wheels (2) are symmetrically arranged at the bottom of the frame (1); a transmission mechanism (3) is fixedly connected to the top surface of the frame (1); a first motor (4) is fixedly connected to the front surface of the transmission mechanism (3); a fine-grained oilstone (5) is fixedly connected to the output end of the first motor (4); a protective component (6) is arranged on the surface of the frame (1) below the fine-grained oilstone (5); and a cleaning component (7) is arranged on the bottom surface of the frame (1) below the protective component (6).

2. The ultra-precision machining device based on a large-aperture lens molding die according to claim 1, characterized in that: The protective assembly (6) includes a movable bin (61) fixedly connected to the top surface of the frame (1), a bidirectional screw rod (62) rotatably connected in the movable bin (61), a second motor (63) fixedly connected to the right surface of the movable bin (61), an output end of the second motor (63) passing through the movable bin (61) and fixedly connected to one end of the bidirectional screw rod (62), two groups of transmission blocks (64) threadedly connected to the bidirectional screw rod (62), the rear end surfaces of the two groups of transmission blocks (64) are fixedly connected to protective covers (65), the three corresponding inner walls of the two groups of protective covers (65) are fixedly connected to guide plates (66), and the corresponding side surfaces of the two groups of guide plates (66) are fixedly connected to a clamping plate (67).

3. The ultra-precision machining device based on a large-aperture lens molding die according to claim 2, characterized in that: The surfaces of the two sets of protective covers (65) on one side corresponding to each other are both glued with sealing strips, and the two sets of protective covers (65) are both transparent in design.

4. The ultra-precision machining device based on a large-aperture lens molding die according to claim 2, characterized in that: The top surfaces of the two groups of clamping plates (67) are designed to be inclined, and anti-slip teeth are provided on the corresponding side surfaces of the two groups of clamping plates (67).

5. The ultra-precision machining device based on a large-aperture lens molding die according to claim 2, characterized in that: Both groups of guide plates (66) are designed to be inclined, and the inclination direction is toward the guide groove (71).

6. The ultra-precision machining device based on a large-aperture lens molding die according to claim 1, characterized in that: The cleaning assembly (7) includes a guide groove (71) provided on the surface of the frame (1) below the protective cover (65), the front and rear end inner walls of the guide groove (71) are fixedly connected to support seats (8), a mold is placed on the support seat (8), two groups of guide rails (72) are symmetrically fixedly connected to the outer wall of the frame (1) below the guide groove (71), sliders (73) are slidably connected in the two groups of guide rails (72), and drawers (74) are fixedly connected to the corresponding side surfaces of the two groups of sliders (73).

7. The ultra-precision machining device based on a large-aperture lens molding die according to claim 6, characterized in that: The rear end surface of the drawer (74) may be provided with a handle, and the handle may be designed in a C-shape or an annular shape.

8. The ultra-precision machining device based on a large-aperture lens molding die according to claim 6, characterized in that: The slider (73) is designed in a T-shape, and a through hole adapted to the slider (73) is provided in the guide rail (72).

9. The ultra-precision machining device based on a large-aperture lens molding die according to claim 6, characterized in that: The bottom of the guide groove (71) is designed to be inclined, and the inclination direction is toward the drawer (74).

10. The method for using the ultra-precision machining device based on a large-aperture lens molding die according to any one of claims 1 to 9, characterized in that: S1. Push the frame (1) and use the four sets of universal wheels (2) at the bottom to move the equipment to the designated processing position to ensure the stability of the equipment; S2, start the second motor (63) in the protection component (6), and its output end drives the bidirectional screw (62) in the movable bin (61) to rotate, and the bidirectional screw (62) drives the two sets of transmission blocks (64) to gather toward the middle through the thread, driving the rear end of the protective cover (65) to move synchronously until the two sets of protective covers (65) are fitted together. When the protective cover (65) moves, the guide plate (66) on the inner wall drives the clamping plate (67) to clamp the mold placed on the support seat (8). The top inclined surface and anti-slip teeth of the clamping plate (67) can ensure the stability of the mold and avoid shaking during processing; S3, turning on the first motor (4) at the front end of the transmission mechanism (3), and the output end thereof drives the fine-grained oilstone (5) to rotate at high speed, thereby performing super-finishing on the mold surface; S4. Waste generated during the processing is shielded by a transparent protective cover (65) to prevent splashing. The sealing strip on the edge of the protective cover (65) can prevent the waste from flying out from the gap. The waste slides along the inclined surface of the guide plate (66) into the guide groove (71) on the surface of the frame (1). The inclined design of the bottom of the guide groove (71) can guide the waste to move toward the drawer (74); S5. The waste material falls into the drawer (74) below through the guide groove (71). After processing is completed, the C-shaped or ring-shaped handle at the rear end of the drawer (74) is pulled to slide the slider (73) in the guide rail (72), and the drawer (74) is pulled out from the frame (1). The waste material in the drawer (74) is cleaned for subsequent secondary use or processing. After cleaning, the drawer (74) is pushed back to its original position along the guide rail (72).

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