Air floating mechanism of lens fine grinding and polishing machine

Abstract

The utility model belongs to the technical field of lens processing equipment, especially relates to a gas float mechanism of lens fine grinding and polishing machine, including gas float mechanism, rotary drive mechanism, swing adjusting mechanism and position adjusting mechanism. The gas float mechanism includes fixed base, main shaft, lower supporting ring and lower ball basin. The lens polisher provided in the application can drive the lower ball basin to realize rotary motion and swing motion simultaneously, ensures that each part of the lens can be evenly polished, improves the surface quality and optical precision of the lens, sets up the air inlet on the lower supporting ring, can set the lower ball basin to float on the top side of the lower supporting ring after connecting the external air source, forms the air film between the lower ball basin and the lower supporting ring, avoids the direct contact of both, reduces the friction resistance, makes the rotary motion of the lower ball basin more smooth, effectively improves the rotary speed, and improves the lens polishing efficiency and uniformity.

Description

Technical Field

[0001] This utility model belongs to the technical field of lens processing equipment, and in particular relates to an air flotation mechanism for a lens fine grinding and polishing machine. Background Technology

[0002] In the manufacturing process of optical lenses, polishing is a crucial step that directly affects the optical performance and surface quality of the lenses. Lens polishing machines are essential equipment for this process, and their performance determines the processing accuracy and production efficiency.

[0003] Traditional lens polishing machines use a motor-driven swing arm, which in turn drives a U-shaped swing frame to swing back and forth. The polishing dish and lens within the U-shaped frame move in an arc, polishing the lens within the dish. However, this method of polishing the lens in this way results in uneven polishing because the lens can only swing back and forth. Furthermore, existing U-shaped frames can only swing back and forth, primarily used for processing convex lenses. Due to the uneven polishing caused by this back-and-forth swing, the processing of concave lenses is not ideal. Concave lenses are typically processed using a separate machine. This other machine uses a clamp to hold the polishing dish and lens, with a top shaft supporting the lens below the polishing dish. The clamp holds the polishing dish and lens in a circular motion for polishing. To ensure uniform circular motion of the clamp, the polishing dish and top shaft cannot be pressed too deeply, resulting in a very thin polished lens thickness. This polishing method, where the clamp holds the polishing dish in a circular motion relative to the top shaft, is not only inefficient but also lacks stability. Utility Model Content

[0004] The purpose of this invention is to provide an air-floating mechanism for a lens grinding and polishing machine, which aims to solve the technical problems of low lens grinding efficiency and low precision in the prior art, and the limited lifespan of lenses that can only be processed from convex lenses.

[0005] To achieve the above objectives, the air flotation mechanism of the lens fine grinding and polishing machine provided in this utility model embodiment includes an air flotation mechanism, a rotation drive mechanism, an oscillation adjustment mechanism, and a position adjustment mechanism. The rotation drive mechanism is connected to the air flotation mechanism, the oscillation adjustment mechanism is connected to the air flotation mechanism, and the position adjustment mechanism is connected to the oscillation adjustment mechanism.

[0006] The air flotation mechanism includes a fixed base, a main shaft, a lower support ring, and a lower ball basin. The fixed base is connected to the swing adjustment mechanism. The main shaft is fixedly installed on the fixed base and is connected to the lower ball basin and the rotation drive mechanism respectively. The lower support ring is provided with an air inlet hole for connecting to an external air source and for floating the lower ball basin on the top side of the lower support ring.

[0007] As an optional embodiment of this utility model, the lower support ring is arranged in a ring shape, and four air inlets are provided, which are evenly arranged on the side of the lower support ring.

[0008] As an optional solution of this utility model, the air flotation mechanism further includes a waterproof basin and a waterproof cover. The waterproof basin is fixedly connected to the inner side of the lower ball basin, and the waterproof cover is fixedly connected to the top side of the waterproof basin. A drain pipe is provided on the side of the lower ball basin.

[0009] As an optional solution of this utility model, the rotary drive mechanism includes a motor plate, a rotary drive motor, a driving pulley, a transmission belt, and a driven pulley. The rotary drive motor is fixedly connected to the motor plate, the driving pulley is fixedly connected to the rotary drive motor, the transmission belt is fixedly wound around the driving pulley and the driven pulley respectively, and the driven pulley is fixedly connected to the outside of the main shaft.

[0010] As an optional embodiment of this utility model, the swing adjustment mechanism includes a swing motor, a swing shaft, a swing cover, a swing slider, a swing slide rail, a swing screw, and an eccentric swing rod. The swing motor is fixedly connected to the position adjustment mechanism. One end of the swing shaft is fixedly installed in the swing motor, and the other end passes through the swing cover and is fixedly connected to the swing slider. The swing slider is movably disposed in the swing cover and slidably connected to the swing slide rail. The swing slide rail is fixedly connected to the swing cover. The swing screw is threaded to the swing slider and rotatably connected to the swing cover. One end of the eccentric swing rod is fixedly connected to the swing cover, and the other end is fixedly connected to the fixed base.

[0011] As an optional solution of this utility model, the position adjustment mechanism includes an adjustment handwheel, an adjustment screw, an adjustment nut, an adjustment plate, a limit plate, a guide wheel, and a limit guide rail. The adjustment handwheel is fixedly connected to the adjustment screw, the adjustment nut is threadedly connected to the adjustment screw and fixedly connected to the adjustment plate, the limit plate is fixedly connected to the side of the adjustment plate, and the guide wheel is rotatably connected to the limit plate and slidably connected to the limit guide rail.

[0012] As an optional solution of this utility model, multiple guide wheels are provided and are evenly arranged on the limiting plate, and the multiple guide wheels are arranged on the upper and lower sides of the limiting guide rail.

[0013] The air flotation mechanism of the lens fine grinding and polishing machine provided in this embodiment of the utility model has at least one of the following technical effects:

[0014] 1. By setting up a rotary drive mechanism and a swing adjustment mechanism, the lower ball basin can be driven to achieve both rotary and swing motion simultaneously, enabling the lens to obtain a composite motion trajectory during the polishing process. This overcomes the defect of traditional polishing machines that can only swing in one direction, ensuring that all parts of the lens are polished evenly, thus improving the surface quality and optical precision of the lens. By setting an air inlet on the lower support ring and connecting it to an external air source, the lower ball basin can be floated on the top side of the lower support ring, forming an air film between the lower ball basin and the lower support ring. This avoids direct contact between the two, reduces frictional resistance, and makes the rotational motion of the lower ball basin smoother, effectively increasing the rotational speed and improving the polishing efficiency and uniformity of the lens.

[0015] 2. It can process both convex and concave mirrors simultaneously, eliminating the need for separate processing equipment for each type, thus reducing equipment investment costs and improving production convenience. The air-floating mechanism allows the lower ball basin to float under the influence of air, better adapting to the shape of the lens. Combined with the rotary drive mechanism, this ensures more uniform grinding force on all parts of the lens, effectively solving the problem of uneven grinding caused by the back-and-forth swing of existing U-shaped swing frame equipment, and improving the processing quality of the lens. The rotary drive mechanism achieves stable rotational motion, while the swing adjustment mechanism and position adjustment mechanism can precisely adjust the grinding position and angle, ensuring the stability of the grinding process, improving processing accuracy, and eliminating the need to limit the downward pressure depth of the grinding dish and top shaft as with existing concave mirror processing equipment. This allows for grinding of larger thicknesses of the lens, improving grinding efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A perspective view of the air flotation mechanism of the lens grinding and polishing machine provided in this embodiment of the utility model.

[0018] Figure 2 A perspective view of the air flotation mechanism of the lens grinding and polishing machine provided in this embodiment of the utility model.

[0019] Figure 3 A perspective view of the air flotation mechanism of the lens grinding and polishing machine provided in this embodiment of the utility model.

[0020] Figure 4 A perspective view of the air flotation mechanism of the lens fine grinding and polishing machine provided in this embodiment of the utility model, omitting the waterproof cover.

[0021] Figure 5 A perspective view of the swing adjustment mechanism of the air flotation mechanism of the lens fine grinding and polishing machine provided in this embodiment of the present utility model.

[0022] Figure 6 The perspective view of the air flotation mechanism of the lens fine grinding and polishing machine provided in the embodiment of this utility model, omitting the swing cover, shows the swing adjustment mechanism.

[0023] The following are the labeling elements in the figure:

[0024] 3. Air flotation mechanism; 4. Rotary drive mechanism; 5. Swing adjustment mechanism; 6. Position adjustment mechanism;

[0025] 31. Mounting base; 32. Spindle; 33. Lower support ring; 34. Lower ball bearing; 35. Waterproof basin; 36. Waterproof cover; 37. Air inlet; 38. Drain pipe;

[0026] 41. Motor board; 42. Rotary drive motor; 44. Transmission belt; 45. Driven pulley;

[0027] 51. Oscillating motor; 52. Oscillating shaft; 53. Oscillating cover; 54. Oscillating slider; 55. Oscillating slide rail; 56. Oscillating screw; 57. Eccentric rocker arm;

[0028] 61. Adjusting handwheel; 62. Adjusting screw; 63. Adjusting nut; 64. Adjusting plate; 65. Limiting plate; 66. Guide wheel; 67. Limiting guide rail. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0030] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0033] In one embodiment of this utility model, such as Figures 1-6 As shown, an air flotation mechanism for a lens grinding and polishing machine is provided, including an air flotation mechanism 3, a rotary drive mechanism 4, an oscillation adjustment mechanism 5, and a position adjustment mechanism 6. The rotary drive mechanism 4 is connected to the air flotation mechanism 3 and provides rotational power to the air flotation mechanism 3. The oscillation adjustment mechanism 5 is connected to the air flotation mechanism 3 and is used to adjust the oscillation angle of the air flotation mechanism 3. The position adjustment mechanism 6 is connected to the oscillation adjustment mechanism 5 and is used to adjust the position of the entire air flotation mechanism 3.

[0034] The air flotation mechanism 3 includes a fixed base 31, a main shaft 32, a lower support ring 33, and a lower ball basin 34. The fixed base 31 is connected to the swing adjustment mechanism 5. The main shaft 32 is fixedly installed on the fixed base 31 and is connected to the lower ball basin 34 and the rotary drive mechanism 4 respectively. The rotary drive mechanism 4 drives the lower ball basin 34 to rotate through the main shaft 32. The lower support ring 33 is provided with an air inlet 37, which is used to connect to an external air source. The external air source delivers gas between the lower support ring 33 and the lower ball basin 34 through the air inlet 37 to form an air film, which floats the lower ball basin 34 on the top side of the lower support ring 33, reducing the frictional resistance when the lower ball basin 34 rotates.

[0035] The lower support ring 33 is arranged in a ring shape to match the shape of the lower ball basin 34. Four air inlets 37 are provided and are evenly arranged on the side of the lower support ring 33 so that the gas can enter evenly between the lower support ring 33 and the lower ball basin 34, ensuring the stability and uniformity of the air film, thereby enabling the lower ball basin 34 to float smoothly.

[0036] The air flotation mechanism 3 also includes a waterproof basin 35 and a waterproof cover 36. The waterproof basin 35 is fixedly connected to the inside of the lower ball basin 34 to collect the wastewater generated during the grinding process. The waterproof cover 36 is fixedly connected to the top of the waterproof basin 35 to prevent wastewater from splashing out. A drain pipe 38 is provided on the side of the lower ball basin 34 to discharge the wastewater collected in the waterproof basin 35.

[0037] The rotary drive mechanism 4 includes a motor plate 41, a rotary drive motor 42, a drive pulley, a transmission belt 44, and a driven pulley 45. The rotary drive motor 42 is fixedly connected to the motor plate 41, the drive pulley is fixedly connected to the output shaft of the rotary drive motor 42, the transmission belt 44 is fixedly wound around the drive pulley and the driven pulley 45 respectively, and the driven pulley 45 is fixedly connected to the outside of the main shaft 32. The rotary drive motor 42 drives the drive pulley to rotate, and drives the driven pulley 45 to rotate through the transmission belt 44, thereby driving the main shaft 32 and the lower ball basin 34 to rotate.

[0038] The swing adjustment mechanism 5 includes a swing motor 51, a swing shaft 52, a swing cover 53, a swing slider 54, a swing slide rail 55, a swing screw 56, and an eccentric swing rod 57. The swing motor 51 is fixedly connected to the position adjustment mechanism 6. One end of the swing shaft 52 is fixedly installed on the output shaft of the swing motor 51, and the other end passes through the swing cover 53 and is fixedly connected to the swing slider 54. The swing motor 51 drives the swing shaft 52 to rotate, which in turn drives the swing slider 54 to rotate. The swing slider 54 is movably disposed in the swing cover 53 and slidably connected to the swing slide rail. 55. The swing slide rail 55 is fixedly connected inside the swing cover 53 and guides the movement of the swing slider 54. The swing screw 56 is threadedly connected to the swing slider 54 and rotatably connected to the swing cover 53. By rotating the swing screw 56, the position of the swing slider 54 on the swing slide rail 55 can be adjusted. One end of the eccentric swing rod 57 is fixedly connected to the swing cover 53 and the other end is fixedly connected to the fixed seat 31. The movement of the swing slider 54 drives the fixed seat 31 to swing through the swing cover 53 and the eccentric swing rod 57, thereby realizing the adjustment of the swing amplitude of the lower ball basin 34.

[0039] The position adjustment mechanism 6 includes an adjusting handwheel 61, an adjusting screw 62, an adjusting nut 63, an adjusting plate 64, a limiting plate 65, guide wheels 66, and a limiting guide rail 67. The adjusting handwheel 61 is fixedly connected to the adjusting screw 62. Rotating the adjusting handwheel 61 drives the adjusting screw 62 to rotate. The adjusting nut 63 is threadedly connected to the adjusting screw 62 and fixedly connected to the adjusting plate 64. Rotation of the adjusting screw 62 drives the adjusting nut 63 and the adjusting plate 64 to move. The limiting plate 65 is fixedly connected to the side of the adjusting plate 64. The guide wheels 66 are rotatably connected to the limiting plate 65 and slidably connected to the limiting guide rail 67, guiding and limiting the movement of the adjusting plate 64 to ensure smooth movement. Multiple guide wheels 66 are provided and evenly distributed on the limiting plate 65. Multiple guide wheels 66 are provided on the upper and lower sides of the limiting guide rail 67 to further improve the stability and reliability of the adjusting plate 64 during movement. The position of the entire air flotation mechanism 3 can be adjusted by the position adjustment mechanism 6, which facilitates quick adjustment of the grinding position of the air flotation mechanism 3. Then, the swing amplitude of the air flotation mechanism 3 can be adjusted by the swing adjustment mechanism 5.

[0040] The working principle of this application is as follows:

[0041] In use, the lens to be polished is placed on the pressing device, and the polishing dish is fixed on the spindle 32. At the same time, an external air source delivers gas between the lower support ring 33 and the lower ball basin 34 through the air inlet 37 on the lower support ring 33 to form an air film, so that the lower ball basin 34 floats above the lower support ring 33.

[0042] Start the rotary drive mechanism 4, the rotary drive motor 42 drives the drive pulley to rotate, and drives the driven pulley 45 and the main shaft 32 to rotate through the transmission belt 44, which in turn drives the lower ball basin 34 and the lens to rotate. The polishing dish rotates in a circular motion, and the lens is pressed into contact with the polishing dish through the external pressing mechanism to realize the lens polishing operation.

[0043] According to the polishing requirements of the lens, the swing angle of the lower ball basin 34 can be adjusted by the swing adjustment mechanism 5. The swing motor 51 drives the swing shaft 52 and the swing slider 54 to move, and the fixed seat 31 and the lower ball basin 34 swing through the swing cover 53 and the eccentric swing rod 57.

[0044] The position of the entire air flotation mechanism 3 can also be adjusted by the position adjustment mechanism 6. Rotating the adjustment handwheel 61 will drive the adjustment screw 62 to rotate, so that the adjustment nut 63 and the adjustment plate 64 move under the guidance of the guide wheel 66 and the limit guide rail 67, thereby driving the swing adjustment mechanism 5 and the air flotation mechanism 3 to move, realizing the position adjustment of the air flotation mechanism 3, which facilitates the quick adjustment of the grinding position of the air flotation mechanism 3.

[0045] Wastewater generated during the grinding process is collected by a waterproof basin 35 and discharged through a drain pipe 38. A waterproof cover 36 prevents wastewater from splashing out and ensures the cleanliness of the equipment interior.

[0046] The air-float mechanism of the lens polishing machine provided in this application, by setting a rotary drive mechanism 4 and an oscillation adjustment mechanism 5, can drive the lower ball basin 34 to achieve both rotary and oscillation motion, so that the lens can obtain a composite motion trajectory during the polishing process. This overcomes the defect of traditional polishing machines that can only oscillate in one direction, ensuring that all parts of the lens can be polished evenly, and improving the surface quality and optical precision of the lens.

[0047] By providing an air inlet 37 on the lower support ring 33 and connecting to an external air source, the lower ball basin 34 can be floatingly positioned on the top side of the lower support ring 33. This creates an air film between the lower ball basin 34 and the lower support ring 33, preventing direct contact between them, reducing frictional resistance, and making the rotation of the lower ball basin 34 smoother. This effectively increases the rotational speed and improves lens polishing efficiency. Because the lower ball basin 34 and the lower support ring 33 are separated by the air film, the influence of differences in the friction coefficient of the support ring surface on the rotation of the lower ball basin 34 is eliminated, making the rotational speed of the lower ball basin 34 more stable. This ensures that the polishing force and time on the lens surface are uniform, improving the uniformity and precision of lens polishing. The non-contact engagement between the lower ball basin 34 and the lower support ring 33 reduces wear between them, extends the service life of the equipment, reduces equipment maintenance costs and downtime, and helps improve production efficiency.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air flotation mechanism for a lens grinding and polishing machine, characterized in that, It includes an air flotation mechanism, a rotary drive mechanism, a swing adjustment mechanism, and a position adjustment mechanism. The rotary drive mechanism is connected to the air flotation mechanism, the swing adjustment mechanism is connected to the air flotation mechanism, and the position adjustment mechanism is connected to the swing adjustment mechanism. The air flotation mechanism includes a fixed base, a main shaft, a lower support ring, and a lower ball basin. The fixed base is connected to the swing adjustment mechanism. The main shaft is fixedly installed on the fixed base and is connected to the lower ball basin and the rotation drive mechanism respectively. The lower support ring is provided with an air inlet hole for connecting to an external air source and for floating the lower ball basin on the top side of the lower support ring.

2. The air flotation mechanism of a lens fine grinding and polishing machine according to claim 1, characterized in that, The lower support ring is arranged in a ring shape, and there are four air inlets, which are evenly distributed on the side of the lower support ring.

3. The air flotation mechanism of a lens fine grinding and polishing machine according to claim 1, characterized in that, The air flotation mechanism also includes a waterproof basin and a waterproof cover. The waterproof basin is fixedly connected to the inner side of the lower ball basin, and the waterproof cover is fixedly connected to the top side of the waterproof basin. A drain pipe is provided on the side of the lower ball basin.

4. The air flotation mechanism of a lens fine grinding and polishing machine according to claim 1, characterized in that, The rotary drive mechanism includes a motor plate, a rotary drive motor, a drive pulley, a transmission belt, and a driven pulley. The rotary drive motor is fixedly connected to the motor plate, the drive pulley is fixedly connected to the rotary drive motor, the transmission belt is fixedly wound around the drive pulley and the driven pulley, and the driven pulley is fixedly connected to the outside of the main shaft.

5. The air flotation mechanism of a lens grinding and polishing machine according to claim 1, characterized in that, The swing adjustment mechanism includes a swing motor, a swing shaft, a swing cover, a swing slider, a swing slide rail, a swing screw, and an eccentric swing rod. The swing motor is fixedly connected to the position adjustment mechanism. One end of the swing shaft is fixedly installed in the swing motor, and the other end passes through the swing cover and is fixedly connected to the swing slider. The swing slider is movably disposed in the swing cover and slidably connected to the swing slide rail. The swing slide rail is fixedly connected to the swing cover. The swing screw is threaded to the swing slider and rotatably connected to the swing cover. One end of the eccentric swing rod is fixedly connected to the swing cover, and the other end is fixedly connected to the fixed base.

6. The air flotation mechanism of a lens fine grinding and polishing machine according to claim 1, characterized in that, The position adjustment mechanism includes an adjustment handwheel, an adjustment screw, an adjustment nut, an adjustment plate, a limit plate, a guide wheel, and a limit guide rail. The adjustment handwheel is fixedly connected to the adjustment screw, the adjustment nut is threadedly connected to the adjustment screw and fixedly connected to the adjustment plate, the limit plate is fixedly connected to the side of the adjustment plate, and the guide wheel is rotatably connected to the limit plate and slidably connected to the limit guide rail.

7. The air flotation mechanism of a lens fine grinding and polishing machine according to claim 6, characterized in that, Multiple guide wheels are provided and are evenly distributed on the limiting plate. The multiple guide wheels are provided on the upper and lower sides of the limiting guide rail.

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