Lens clamping mechanism and lens coring machine

Abstract

The present application discloses a lens clamping mechanism and a lens coring machine, and relates to the field of lens coring machines. The lens clamping mechanism includes a mounting bracket, a hanging hammer, a hanging rope and a lens clamping assembly, wherein one end of the hanging rope is connected to the hanging hammer, and the hanging rope is wound on the hanging rope nylon bearing. The lens clamping assembly includes an upper shaft of a clamp shaft and a lower shaft of a clamp shaft, wherein the other end of the hanging rope is connected to the upper shaft of the clamp shaft, and the power shaft of the upper shaft cylinder is connected to the upper shaft of the clamp shaft; the lens clamping mechanism of the embodiment of the present application controls the force balance of the upper shaft of the clamp shaft through the hanging hammer, and allows the upper shaft of the clamp shaft to lightly press and clamp the lens glass, which will improve the scratches on the lens surface and play a vital role in the coring of the lens.

Description

Technical Field

[0001] The present application relates to the technical field of lens coring machines, and in particular to a lens clamping mechanism and a lens coring machine. Background Art

[0002] Everyday optical products incorporate numerous lenses. Multi-lens systems typically consist of several to dozens of lenses. To achieve optimal optical performance, it's essential to align the center axis of the cylinder containing the lenses with the axis formed by the centers of the individual lenses. This essential process is called coring. Specifically, coring involves grinding the periphery to a predetermined shape and size, ensuring that the line connecting the centers of curvature of the two polished surfaces (the optical axis) coincides with the rotation axis of the coring machine used to grind the lens periphery. After coring, the lens's optical outer diameter and center axis align, and the ground surface becomes the reference surface for assembly. This reference surface ensures that the optical axes of the individual lenses are aligned when mounted in a frame, ensuring coaxiality for the entire lens system. Errors in lens periphery machining can be fatal flaws in lens systems, making coring a crucial step.

[0003] The principle of a lens coring machine is to use a concentric lens shaft to clamp the lens for centering. Therefore, the coaxial accuracy of the two lens shafts is one of the core technologies of the coring machine. Existing lens shaft coaxial accuracy sampling uses a cylinder sleeve to move the clamp shaft up and down to clamp the lens. When the cylinder sleeve pushes the clamp shaft to move, the large weight of the clamp shaft itself and the downward thrust of the cylinder cause the clamp shaft to be subjected to a large impact force when contacting the lens, which can easily cause scratches. Summary of the Invention

[0004] The present application aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the first purpose of this application is to provide a lens clamping mechanism, which controls the force balance of the shaft on the clamp shaft through a hanging hammer, and allows the shaft on the clamp shaft to lightly press and clamp the lens glass, which will improve the scratches on the lens surface and play a vital role in the core removal of the lens.

[0006] The second object of the present application is to provide a lens coring machine comprising the above-mentioned lens clamping mechanism.

[0007] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a lens clamping mechanism, including a mounting bracket, a hanging hammer, a hanging rope and a lens clamping assembly, wherein one end of the hanging rope is connected to the hanging hammer, a hanging rope nylon bearing is provided on the mounting bracket, and the hanging rope is wound on the hanging rope nylon bearing, and the lens clamping assembly includes a clamp shaft upper shaft and a clamp shaft lower shaft, wherein a magnetic levitation guide rail is provided on the mounting bracket, the clamp shaft upper shaft is provided on the magnetic levitation guide rail, the other end of the hanging rope is connected to the clamp shaft upper shaft, the power shaft of the upper shaft cylinder is connected to the clamp shaft upper shaft, the clamp shaft lower shaft is provided on the mounting bracket, and the clamp shaft lower shaft is located below the clamp shaft upper shaft, and the mass of the hanging hammer is the same as the mass of the clamp shaft upper shaft.

[0008] According to the lens clamping mechanism of the embodiment of the present application, the force balance of the shaft on the clamp shaft is controlled by a hanging hammer, and the shaft on the clamp shaft can be pressed lightly to clamp the lens glass, which will improve the scratches on the lens surface and play a vital role in the core removal of the lens.

[0009] In addition, the lens clamping mechanism proposed in the present application may also have the following additional technical features:

[0010] In one embodiment of the present application, an upper shaft adjustment plate is provided on the upper shaft of the clamp shaft, the top of the upper shaft adjustment plate is connected to the suspension rope, and a magnetic levitation slider is provided on the upper shaft adjustment plate, and the magnetic levitation slider is slidably connected to the magnetic levitation guide rail.

[0011] In one embodiment of the present application, a buffer block is provided at the bottom of the magnetic levitation guide rail, a buffer is provided on the buffer block, the buffer is connected to the bottom of the upper shaft of the clamp shaft, a position sensor and a host computer are provided on the buffer block, the position sensor is electrically connected to the host computer, and the host computer is electrically connected to the upper shaft cylinder.

[0012] In one embodiment of the present application, an upper shaft base is provided on the upper shaft of the clamp shaft, and the upper shaft of the clamp shaft is connected to the magnetic levitation slider through the upper shaft base.

[0013] In one embodiment of the present application, the power shaft of the upper shaft cylinder is connected to the upper shaft base, and an upper shaft cylinder stop rod is provided on the mounting bracket.

[0014] In one embodiment of the present application, the power shaft of the upper shaft cylinder is connected to the upper shaft base, and an upper shaft cylinder stop rod is provided on the mounting bracket.

[0015] In one embodiment of the present application, a guide rail moving upper shaft assembly is provided on the top of the upper shaft base, and the guide rail moving upper shaft assembly includes an upper shaft connecting seat, a movable connecting piece and a cylinder shaft connecting seat, wherein the upper shaft connecting seat is connected to the upper shaft base, the cylinder shaft connecting seat is connected to the power shaft of the upper shaft cylinder, a horizontal movable sleeve is provided at the bottom of the cylinder shaft connecting seat, a horizontal movable seat is provided on the inner side of the upper shaft connecting seat, and the horizontal movable sleeve is horizontally movably connected to the horizontal movable seat.

[0016] In one embodiment of the present application, the upper and lower ends of the horizontal movable sleeve can slide horizontally and fit tightly against the upper and lower surfaces of the horizontal movable seat, and the diameter of the middle part of the horizontal movable sleeve is smaller than the inner diameter of the horizontal movable seat, and a dustproof rubber ring is provided on the top of the upper shaft connecting seat.

[0017] In one embodiment of the present application, a clamping claw is provided at one end of the upper shaft of the clamping shaft and the relatively close end of the lower shaft of the clamping shaft. The clamping claw is detachable and can be adjusted up, down, left, and right.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings.

[0020] Figure 1 is a structural schematic diagram of a lens clamping mechanism according to one embodiment of the present application;

[0021] Figure 2 is a structural schematic diagram of a lens clamping mechanism according to one embodiment of the present application;

[0022] Figure 3 for Figure 1 A magnified view of middle A;

[0023] Figure 4 The figure is a schematic cross-sectional view of a guide rail moving upper shaft assembly in a lens clamping mechanism according to one embodiment of the present application.

[0024] As shown in the figure: 1. Hanging hammer; 2. Lifting rope; 9. Lower shaft of clamp shaft; 10. Buffer block; 12. Buffer; 19. Upper shaft base; 191. Guide rail moving upper shaft assembly; 192. Upper shaft connecting seat; 193. Dust-proof rubber ring; 194. Cylinder shaft connecting seat; 195. Horizontal movable sleeve; 196. Horizontal movable seat; 22. Upper shaft of clamp shaft; 26. Upper shaft cylinder; 28. Upper shaft cylinder stop rod; 30. Lifting rope nylon bearing; 32. Magnetic levitation guide rail; 33. Magnetic levitation guide rail; 34. Upper shaft adjustment plate; 38. Mounting bracket. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the present application include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0026] The lens coring machine according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0027] like Figure 1-4 As shown, the present invention provides a lens clamping mechanism, including a mounting bracket 38, a hanging hammer 1, a hanging rope 2 and a lens clamping assembly, wherein one end of the hanging rope 2 is connected to the hanging hammer 1, a hanging rope nylon bearing 30 is provided on the mounting bracket 38, and the hanging rope 2 is wound around the hanging rope nylon bearing 30.

[0028] The lens clamping assembly includes an upper shaft 22 of the clamp shaft and a lower shaft 9 of the clamp shaft, wherein a magnetic levitation guide rail 32 is provided on the mounting bracket, the upper shaft 22 of the clamp shaft is arranged on the magnetic levitation guide rail 32, the other end of the suspension rope 2 is connected to the upper shaft 22 of the clamp shaft, the power shaft of the upper shaft cylinder 26 is connected to the upper shaft 22 of the clamp shaft, the lower shaft 9 of the clamp shaft is arranged on the mounting bracket 38, and the lower shaft 9 of the clamp shaft is located below the upper shaft 22 of the clamp shaft, and the mass of the hanging hammer 1 is the same as the mass of the upper shaft 22 of the clamp shaft.

[0029] It should be noted that the ends of the upper shaft 22 and the lower shaft 9 of the clamp shaft that are relatively close to each other are both provided with clamping claws 221, and the clamping claws 221 are detachable and can be adjusted up and down and left and right to adapt and clamp lenses of various sizes and thicknesses.

[0030] Specifically, when it is necessary to test the coaxial accuracy of the lens, the staff first places the lower surface of the lens on the clamping claw 221 of the lower shaft 9 of the clamp shaft, and then pushes the upper shaft 22 of the clamp shaft downward through the ventilation of the upper shaft cylinder 26. Finally, the clamping claw 221 at the bottom of the upper shaft 22 of the clamp shaft is clamped with the upper surface of the lens to fix the lens. The staff can then proceed to the next step of the coaxial accuracy test.

[0031] In the process of the upper shaft cylinder 26 pushing the clamp shaft upper shaft 22 down, since the mass of the pendulum 1 and the clamp shaft upper shaft 22 are equal, the rope 2 is pulled by the gravity of the pendulum 1, and the connection between the rope 2 and the clamp shaft upper shaft 22 has an upward traction force. Therefore, at this time, the clamp shaft upper shaft 22 only needs a slight thrust from the upper shaft cylinder 26 to realize the downward movement of the clamp shaft upper shaft 22, thereby reducing the impact of the clamp shaft upper shaft 22 on the upper surface of the lens.

[0032] The hanging hammer 1 pulls the upper shaft 22 of the fixture shaft to rise and fall easily, allowing the upper shaft 22 of the fixture shaft to lightly press and clamp the lens glass, which will improve the scratches on the lens surface and play a vital role in the core removal of the lens.

[0033] In addition, during the descent of the fixture shaft upper shaft 22 , the magnetic suspension guide rail 32 slides up and down without friction, and the fixture shaft upper shaft 22 will not undergo lateral displacement even after long-term use.

[0034] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, an upper shaft adjustment plate 34 is provided on the upper shaft 22 of the clamp shaft, the top of the upper shaft adjustment plate 34 is connected to the suspension rope 2, and a magnetic levitation slider 33 is provided on the upper shaft adjustment plate 34, which is slidably connected to the magnetic levitation guide rail 32.

[0035] Specifically, during the up and down movement of the upper shaft 22 of the clamp shaft, the upper shaft adjustment plate 34 is used to adjust the initial position of the upper shaft 22 of the clamp shaft, thereby adapting to clamping lenses of different thicknesses. In the process of the up and down movement of the upper shaft 22 of the clamp shaft, the magnetic levitation guide rail 32 reduces direct contact with the upper shaft 22 of the clamp shaft, on the one hand reducing the resistance to the up and down movement of the upper shaft 22 of the clamp shaft, and the upper shaft 22 of the clamp shaft will not undergo lateral displacement even after long-term use.

[0036] In one embodiment of the present invention, Figure 2 As shown, a buffer block 10 is provided at the bottom of the magnetic levitation guide rail 32, and a buffer 12 is provided on the buffer block 10. The buffer 12 is connected to the bottom of the upper shaft 22 of the clamp shaft, and a position sensor and a host computer are provided on the buffer block 10. The position sensor is electrically connected to the host computer, and the host computer is electrically connected to the upper shaft cylinder 26. Specifically, the buffer 12 has a buffering effect on the clamping claw 221 at the bottom of the upper shaft 22 of the clamp shaft to prevent the clamping claw 221 at the bottom of the upper shaft 22 of the clamp shaft from hitting the upper surface of the lens. When the buffer 12 is about to reach the upper surface of the lens, the position sensor transmits the position information to the host computer, and the host computer controls the upper shaft cylinder 26 to cut off the power. At this time, the buffer 12 is not subjected to force, and the buffer 12 can make the bottom of the upper shaft 22 of the clamp shaft lightly touch the upper surface of the lens.

[0037] In one embodiment of the present invention, Figure 2 As shown, an upper shaft base 19 is provided on the fixture shaft upper shaft 22 , and the fixture shaft upper shaft 22 is connected to the magnetic suspension slider 33 through the upper shaft base 19 , which is used to fix the fixture shaft upper shaft 22 on the magnetic suspension guide rail 32 .

[0038] Furthermore, the power shaft of the upper shaft cylinder 26 is connected to the upper shaft base 19 , and an upper shaft cylinder stop rod 28 is provided on the mounting bracket 38 .

[0039] Specifically, the upper shaft 22 of the clamp shaft is driven to move up and down by the upper shaft cylinder 26. The staff limits the telescopic distance of the power shaft of the upper shaft cylinder 26 by adjusting the position of the upper shaft cylinder stop rod 28 to prevent the upper shaft cylinder 26 power shaft from having too long a stroke causing the upper and lower impact force of the clamp shaft upper shaft 22, or to prevent the upper shaft cylinder 26 power shaft from having too short a stroke causing the inability to clamp the lens.

[0040] In one embodiment of the present invention, Figure 3 and Figure 4 As shown, a guide rail moving upper shaft assembly 191 is provided on the top of the upper shaft base 19 , and the guide rail moving upper shaft assembly 191 includes an upper shaft connecting seat 192 and a cylinder shaft connecting seat 194 .

[0041] Among them, the upper shaft connecting seat 192 is connected to the upper shaft base 19, the cylinder shaft connecting seat 194 is connected to the power shaft of the upper shaft cylinder 26, a horizontal movable sleeve 195 is provided at the bottom of the cylinder shaft connecting seat 194, and a horizontal movable seat 196 is provided on the inner side of the upper shaft connecting seat 192, and the horizontal movable sleeve 195 is horizontally movably connected to the horizontal movable seat 196.

[0042] Furthermore, the upper and lower ends of the horizontal movable sleeve 195 and the upper and lower surfaces of the horizontal movable seat 196 can slide horizontally and fit tightly, and the diameter of the middle part of the horizontal movable sleeve 195 is smaller than the inner diameter of the horizontal movable seat 196. A dust-proof rubber ring 193 is provided on the top of the upper shaft connecting seat 192. It can be understood that in order to improve the horizontal smoothness effect, lubricating oil can be applied to the contact surfaces between the upper and lower ends of the horizontal movable sleeve 195 and the horizontal movable seat 196.

[0043] Specifically, when the power shaft of the upper shaft cylinder 26 moves up and down for a long time, if the power shaft of the upper shaft cylinder 26 undergoes lateral deformation or displacement, the power shaft will drive the horizontal movable sleeve 195 and the horizontal movable seat 196 to undergo horizontal displacement. In the vertical direction of the upper shaft 22 of the clamp shaft, it is still guided by the vertical direction of the magnetic levitation guide rail 32, so that the upper shaft 22 of the clamp shaft can only move in the vertical direction, and the upper shaft 22 of the clamp shaft will not undergo lateral displacement, so that the upper shaft 22 of the clamp shaft is accurately clamped at the specified position on the upper surface of the lens.

[0044] In addition, the present invention provides a lens coring machine, which adopts the above-mentioned lens clamping mechanism.

[0045] In summary, the lens clamping mechanism of the embodiment of the present application controls the balance of the shaft on the clamp shaft through a hanging hammer, ensuring that the shaft on the clamp shaft always rises and falls vertically during long-term use, and allows the shaft on the clamp shaft to lightly press and clamp the lens glass, which will improve the scratches on the lens surface and play a vital role in the core removal of the lens.

[0046] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0048] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. A lens clamping mechanism, characterized in that: The invention comprises a mounting bracket (38), a hanging hammer (1), a hanging rope (2) and a lens clamping assembly, wherein one end of the hanging rope (2) is connected to the hanging hammer (1), a hanging rope nylon bearing (30) is provided on the mounting bracket (38), and the hanging rope (2) is wound around the hanging rope nylon bearing (30); The lens clamping assembly comprises a clamp shaft upper shaft (22) and a clamp shaft lower shaft (9), wherein a magnetic suspension guide rail (32) is provided on the mounting bracket, the clamp shaft upper shaft (22) is arranged on the magnetic suspension guide rail (32), the other end of the suspension rope (2) is connected to the clamp shaft upper shaft (22), an upper shaft cylinder (26) is provided above the clamp shaft upper shaft (22), a power shaft of the upper shaft cylinder (26) is connected to the clamp shaft upper shaft (22), the clamp shaft lower shaft (9) is provided on the mounting bracket (38), and the clamp shaft lower shaft (9) is located below the clamp shaft upper shaft (22); The mass of the pendulum (1) is the same as the mass of the shaft (22) on the fixture shaft; An upper shaft adjustment plate (34) is provided on the upper shaft (22) of the clamp shaft, the top of the upper shaft adjustment plate (34) is connected to the suspension rope (2), a magnetic suspension slider (33) is provided on the upper shaft adjustment plate (34), and the magnetic suspension slider (33) is slidably connected to the magnetic suspension guide rail (32); A buffer block (10) is provided at the bottom of the magnetic suspension guide rail (32), a buffer (12) is provided on the buffer block (10), the buffer (12) is connected to the bottom of the fixture shaft upper shaft (22), a position sensor and a host computer are provided on the buffer block (10), the position sensor is electrically connected to the host computer, and the host computer is electrically connected to the upper shaft cylinder (26); An upper shaft base (19) is provided on the fixture shaft upper shaft (22), and the fixture shaft upper shaft (22) is connected to the magnetic suspension slider (33) via the upper shaft base (19); A guide rail movable upper shaft assembly (191) is provided on the top of the upper shaft base (19), and the guide rail movable upper shaft assembly (191) includes an upper shaft connecting seat (192) and a cylinder shaft connecting seat (194), wherein the upper shaft connecting seat (192) is connected to the upper shaft base (19), and the cylinder shaft connecting seat (194) is connected to the power shaft of the upper shaft cylinder (26), and a horizontal movable sleeve (195) is provided at the bottom of the cylinder shaft connecting seat (194), and a horizontal movable seat (196) is provided on the inner side of the upper shaft connecting seat (192), and the horizontal movable sleeve (195) is horizontally movably connected to the horizontal movable seat (196); The upper and lower ends of the horizontal movable sleeve (195) and the upper and lower surfaces of the horizontal movable seat (196) can slide horizontally and fit tightly together, and the diameter of the middle part of the horizontal movable sleeve (195) is smaller than the inner diameter of the horizontal movable seat (196), and a dustproof rubber ring (193) is provided on the top of the upper shaft connecting seat (192).

2. The lens holding mechanism according to claim 1, wherein: The power shaft of the upper shaft cylinder (26) is connected to the upper shaft base (19), and an upper shaft cylinder stop rod (28) is provided on the mounting bracket (38).

3. The lens holding mechanism according to claim 1, wherein: The ends of the clamp shaft upper shaft (22) and the clamp shaft lower shaft (9) that are relatively close to each other are both provided with clamping claws (221), and the clamping claws (221) are detachable and can be adjusted up, down, left, and right.

4. A lens coring machine, characterized in that: The lens holding mechanism comprises the lens holding mechanism according to any one of claims 1 to 3.

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