Lens clamping device and lens clamping method

Abstract

The present invention discloses a lens clamping device and a clamping method. The lens clamping device includes: a base, a first support shaft, a second support shaft, a T-shaped first positioning bar and a second positioning bar. When clamping the lens, the first positioning bar and the second positioning bar are moved according to the size of the lens, and then the first positioning bar and the second positioning bar are locked and fixed to the first support shaft and the second support shaft respectively. Then, the lens is placed on a processing table and fits with the heads of the first positioning bar and the second positioning bar. Then, the adsorption hole is opened to adsorb the lens to the processing table to complete the clamping and fixing of the lens. Compared with the traditional adhesive fixing method, the above-mentioned fixing by adsorption is more convenient to operate and has high repeatability and positioning accuracy. In addition, the first positioning bar and the second positioning bar are movable and can adapt to the clamping of lenses of different sizes without the need to replace the loading fixture.

Description

Technical Field

[0001] The present invention relates to the technical field of lens processing, and more particularly to a lens clamping device and a lens clamping method. Background Art

[0002] In the field of lens processing, clamping and fixing the lens to prevent it from shaking during the processing is a very important step.

[0003] As for the existing technology, the lenses are generally fixed by heating and bonding them to a graphite plate. However, this fixing method is inaccurate in positioning and the balance of the lenses is difficult to control, resulting in product waste. In addition, in mass production, different loading fixtures need to be replaced according to the size of the lenses, which is time-consuming and labor-intensive, affecting production efficiency.

[0004] Therefore, how to simplify the lens clamping process and improve production efficiency is a difficult problem that needs to be solved urgently in this field at this stage. Summary of the Invention

[0005] In view of this, the present invention aims to provide a lens clamping device that simplifies the lens clamping process and improves production efficiency. The present invention also aims to provide a lens clamping method, which is applied to the lens clamping device described above. This method simplifies the lens clamping process, improves production efficiency, and solves current problems in this field.

[0006] A lens clamping device, comprising:

[0007] A base, wherein the base is provided with a raised processing platform, and the upper surface of the processing platform is provided with adsorption holes for fixing the lens to be processed;

[0008] a first supporting shaft and a second supporting shaft, wherein the first supporting shaft and the second supporting shaft are both fixed to the processing table; and a first guide hole and a second guide hole are respectively formed on the outer circumference thereof;

[0009] The first and second T-shaped positioning bars have their tails inserted into the first guide hole and the second guide hole respectively, and can move along the inner walls of the first guide hole and the second guide hole respectively, and can be fixed to the first support shaft and the second support shaft respectively.

[0010] Preferably, in the lens clamping device, the upper surface of the processing table is provided with a plurality of meandering grooves from the inside to the outside, and the plurality of adsorption holes are located in the meandering grooves.

[0011] Preferably, in the lens clamping device, the adsorption holes include a plurality of vacuum auxiliary holes passing through the center of the serpentine groove and arranged in a straight line, and a vacuum main hole opened on the side of the processing table and capable of connecting the plurality of vacuum auxiliary holes.

[0012] Preferably, in the lens clamping device, the first guide hole and the second guide hole are respectively inserted with a first screw and a second screw in the hole walls, and can be fixed to the first positioning bar and the second positioning bar by rotating the first screw and the second screw respectively.

[0013] Preferably, the lens clamping device can adjust the heights of the first positioning bar and the second positioning bar by moving the heights of the first support shaft and the second support shaft.

[0014] Preferably, the lens clamping device further includes an Ω-shaped first screw buckle, which is wrapped around the outer peripheral surface of the first support shaft and fixes the first support shaft and the processing table by fixing both ends to the processing table.

[0015] Preferably, the lens clamping device further includes an Ω-shaped second screw buckle, which is wrapped around the outer peripheral surface of the second support shaft and fixes the second support shaft and the processing table by fixing both ends to the processing table.

[0016] Preferably, in the lens clamping device, the first support shaft and the second support shaft are both fixed to the outer peripheral surface of the processing table.

[0017] Preferably, in the lens clamping device, the base is provided with a plurality of screw holes for fixing the lens clamping device to a workbench.

[0018] A lens clamping method, applied to the lens clamping device as described in any one of the above items, comprising the steps of:

[0019] Fix the base to the workbench and use a dial indicator to calibrate the upper surface of the machining table and locate the reference;

[0020] Adjust the heights of the first support shaft and the second support shaft according to the thickness of the lens to be processed, insert the first positioning bar and the second positioning bar into the first guide hole and the second guide hole respectively, and adjust the angles of the heads of the first positioning bar and the second positioning bar with the aid of a dial indicator according to the shape of the lens, and tighten the first screw and the second screw respectively;

[0021] The lens is placed on the surface of the processing table and fits with the heads of the first and second positioning bars, the adsorption holes are opened to adsorb the lens on the processing table, and the adsorption area is adjusted by opening or closing the vacuum auxiliary holes.

[0022] The lens clamping device proposed in the present invention includes: a base, a first support shaft, a second support shaft, a T-shaped first positioning bar and a second positioning bar; wherein the base is provided with a raised processing table, and the upper surface of the processing table is provided with an adsorption hole for fixing the lens to be processed; the first support shaft and the second support shaft are both fixed to the processing table; and the first guide hole and the second guide hole are respectively opened on the outer peripheral surface; the tail ends of the first positioning bar and the second positioning bar are respectively inserted into the first guide hole and the second guide hole, and can be respectively moved along the inner wall of the first guide hole and the second guide hole, and can be respectively fixed to the first support shaft and the second support shaft. When clamping the lens, the first positioning bar and the second positioning bar are moved according to the size of the lens, and then the first positioning bar and the second positioning bar are respectively locked and fixed to the first support shaft and the second support shaft, and then the lens is placed on the processing table and fits with the head of the first positioning bar and the second positioning bar, and then the adsorption hole is opened to adsorb the lens to the processing table to complete the clamping and fixing of the lens. Compared to traditional adhesive fixation, this adsorption fixation method is more convenient to operate and offers high repeatability and precision. Furthermore, the removable first and second positioning bars can accommodate lenses of varying sizes without requiring replacement of the loading fixture. Therefore, the lens clamping device proposed in this invention simplifies the lens clamping process, improves production efficiency, and addresses current challenges in this field. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A three-dimensional diagram of a lens clamping device in a specific embodiment of the present invention;

[0025] Figure 2 A top view of a lens clamping device according to a specific embodiment of the present invention;

[0026] Figure 3 It is a front perspective view of a lens clamping device according to a specific embodiment of the present invention;

[0027] Figure 4 This is a right side view of the lens clamping device in a specific embodiment of the present invention.

[0028] Figure 1-Figure 4 middle:

[0029] Base 1; processing table 2; first support shaft 3; second support shaft 4; first positioning bar 5; second positioning bar 6; circular groove 7; vacuum auxiliary hole 8; vacuum main hole 9; first screw 10; second screw 11; first screw buckle 12; screw hole 13. DETAILED DESCRIPTION

[0030] The core of this specific embodiment is to provide a lens clamping device, which can simplify the lens clamping process and improve production efficiency.

[0031] The following embodiments are described with reference to the accompanying drawings. The embodiments described below do not limit the invention as set forth in the claims. Furthermore, the entire contents of the configurations shown in the following embodiments are not necessarily required to serve as solutions to the invention as set forth in the claims.

[0032] The lens clamping device provided in this specific embodiment includes: a base 1, a first support shaft 3, a second support shaft 4, a T-shaped first positioning bar 5 and a second positioning bar 6; wherein, the base 1 is provided with a raised processing table 2, and the upper surface of the processing table 2 is provided with adsorption holes for fixing the lens to be processed; the first support shaft 3 and the second support shaft 4 are both fixed to the processing table 2; and a first guide hole and a second guide hole are respectively opened on the outer peripheral surface; the tails of the first positioning bar 5 and the second positioning bar 6 are respectively inserted into the first guide hole and the second guide hole, and can respectively move along the inner walls of the first guide hole and the second guide hole, and can respectively be fixed to the first support shaft 3 and the second support shaft 4.

[0033] When clamping the lens, move the first positioning bar 5 and the second positioning bar 6 according to the size of the lens, and then lock and fix the first positioning bar 5 and the second positioning bar 6 to the first support shaft 3 and the second support shaft 4 respectively. Then, place the lens on the processing table 2 and fit it with the heads of the first positioning bar 5 and the second positioning bar 6. Then open the adsorption hole to adsorb the lens to the processing table 2 to complete the clamping and fixation of the lens.

[0034] Compared with the traditional fixing method of bonding, the fixing method of adsorption is easier to operate and has high repeatability. In addition, the first positioning bar 5 and the second positioning bar 6 are movable to adapt to the clamping of lenses of different sizes without replacing the loading fixture.

[0035] Therefore, the lens clamping device proposed in the present invention can simplify the lens clamping process, improve production efficiency, and solve the current problems in this field. Figure 1-Figure 4 .

[0036] In the lens clamping device provided in this embodiment, the upper surface of the processing table 2 can be provided with a plurality of meandering grooves 7 from the inside to the outside, and the plurality of adsorption holes can be located in the meandering grooves 7 .

[0037] like Figure 1 As shown, there are seven serpentine grooves 7, with multiple serpentine grooves 7 arranged from the center of the processing table 2 to the periphery. These serpentine grooves 7 are arranged in a set arrangement. This allows the distance between two adjacent serpentine grooves 7 to be equal, and the edges of the serpentine grooves 7 can be used as a basis for distance measurement. This arrangement allows for better positioning and placement of the lens, facilitates measurement of the distance moved by the first positioning bar 5 and the second positioning bar 6, and facilitates faster positioning and clamping of the lens. Furthermore, adsorption holes can be provided within the serpentine grooves 7 to better create a vacuum state within the serpentine grooves 7, thereby enhancing the adsorption and fixation effect on the lens.

[0038] The lens clamping device provided in this embodiment comprises a plurality of vacuum auxiliary holes 8 passing through the center of the serpentine groove 7 and arranged in a straight line, and a vacuum main hole 9 opened on the side of the processing table 2 and capable of connecting the plurality of vacuum auxiliary holes 8 .

[0039] The lens clamping device provided in this specific embodiment can have the first screw 10 and the second screw 11 inserted into the hole walls of the first guide hole and the second guide hole respectively, and can be fixed to the first positioning bar 5 and the second positioning bar 6 respectively by rotating the first screw 10 and the second screw 11.

[0040] That is, after adjusting the positions of the first positioning bar 5 and the second positioning bar 6 in the first guide hole and the second guide hole, the first positioning bar 5 and the first support shaft 3 can be locked and fixed, and the second positioning bar 6 and the second support shaft 4 can be locked and fixed by tightening the first screw 10 and the second screw 11, thereby achieving the fixation of the positions of the first positioning bar 5 and the second positioning bar 6.

[0041] Of course, the first positioning bar 5 and the first support shaft 3 can also be snap-fitted or fixed in other ways that can play an equivalent role; similarly, the second positioning bar 6 and the second support shaft 4 can also be snap-fitted or fixed in other ways that can play an equivalent role.

[0042] Furthermore, the lens clamping device can adjust the height of the first positioning bar 5 and the second positioning bar 6 by moving the height of the first support shaft 3 and the second support shaft 4 .

[0043] That is, the first support shaft 3 and the processing table 2 can be set to a movable fixed form, and the second support shaft 4 and the processing table 2 can be set to a movable fixed form, and then the height of the first positioning bar 5 and the second positioning bar 6 can be adjusted by adjusting the height of the first support shaft 3 and the second support shaft 4, so that the first positioning bar 5 and the second positioning bar 6 have the function of approaching or moving away from the center of the processing table 2, and have the function of rising and lowering, so as to adapt to lenses of different sizes and thicknesses, so as to further improve the universality of the lens clamping device and simplify the tedious clamping process during mass production.

[0044] The lens clamping device provided in this embodiment may further include an Ω-shaped first screw buckle 12, which may be wrapped around the outer circumference of the first support shaft 3 and fixed to the processing table 2 at both ends to achieve the fixation of the first support shaft 3 and the processing table 2. Figure 1 As shown, the middle part of the Ω-shaped first screw buckle 12 is wrapped around the outer peripheral surface of the first support shaft 3, and the first support shaft 3 and the processing table 2 are fixed by fixing the two ends of the first screw buckle 12 to the processing table 2 to achieve the fixation.

[0045] The above setting method can not only ensure the fixation of the first support shaft 3 and the processing table 2, but also can change the height and rotation angle of the first support shaft 3 by removing the first screw buckle 12, thereby realizing the adjustment of the height and angle of the head of the first positioning bar 5.

[0046] Similarly, the lens clamping device may further include an Ω-shaped second screw buckle, which may be wrapped around the outer circumference of the second support shaft 4 and fixed to the processing table 2 at both ends. The middle portion of the Ω-shaped second screw buckle is wrapped around the outer circumference of the second support shaft 4 and fixed to the processing table 2 at both ends. The second support shaft 4 is fixed to the processing table 2. The above arrangement ensures that the second support shaft 4 is fixed to the processing table 2, and the height and rotation angle of the second support shaft 4 can be changed by disassembling the second screw buckle, thereby adjusting the height and angle of the head of the second positioning bar 6.

[0047] It should be noted that the adjustment of the angles of the first support shaft 3 and the second support shaft 4 mentioned in this specific embodiment refers to: before the first screw buckle 12 and the second screw buckle are locked with the processing table 2, the first support shaft 3 and the second support shaft 4 can be rotated in the first screw buckle 12 and the second screw buckle respectively, thereby driving the rotation of the first positioning bar 5 and the second positioning bar 6 as a whole, so as to adjust the angle of the head of the first positioning bar 5 and the second positioning bar 6, thereby better achieving the fit with the edge of the special-shaped lens, so as to better expand the scope of application of this device. Special-shaped lenses are lenses with non-rectangular edges, such as triangles, or other polygonal lenses.

[0048] Of course, the first support shaft 3, the second support shaft 4 and the processing table 2 can also be fixed by clamping, or other fixing methods that can play an equivalent role.

[0049] The lens clamping device provided in this embodiment can be fixed to the outer peripheral surface of the processing table 2 by the first support shaft 3 and the second support shaft 4. Figure 1 As shown, this arrangement can not only ensure the functions of the first support shaft 3 and the second support shaft 4 , but also facilitate the adjustment of the height and angle of the first positioning bar 5 and the second positioning bar 6 .

[0050] Furthermore, the base 1 of the lens clamping device can be provided with a plurality of screw holes 13 for fixing the lens clamping device to the workbench, and the lens clamping device and the workbench can be fixed by inserting screws into the screw holes 13, thereby preventing the lens clamping device from shaking on the workbench during the lens processing process.

[0051] This specific embodiment also provides a lens clamping method, which is applied to the above-mentioned lens clamping device, comprising the steps of:

[0052] First, fix the base 1 to the workbench and use a dial indicator to calibrate the upper surface of the processing table 2 to locate the reference;

[0053] Next, adjust the heights of the first support shaft 3 and the second support shaft 4 according to the thickness of the lens to be processed, insert the first positioning bar 5 and the second positioning bar 6 into the first guide hole and the second guide hole respectively, rotate the first support shaft 3 and the second support shaft 4, and use a dial indicator to assist in adjusting the angles of the heads of the first positioning bar 5 and the second positioning bar 6 according to the shape of the lens, and tighten the first screw 10 and the second screw 11 respectively;

[0054] Finally, place the lens on the surface of the processing table 2 and fit it with the heads of the first positioning bar 5 and the second positioning bar 6. Open the adsorption hole to adsorb the lens to the processing table 2, and adjust the adsorption area by opening or closing the vacuum auxiliary hole 8.

[0055] The following is a further explanation of the lens clamping method, taking the most common lens 172×185×12.7mm as an example:

[0056] 1. Fix the lens clamping device to the workbench of the machine tool and calibrate the upper surface of the processing table 2 of the lens clamping device with a dial indicator;

[0057] 2. Select the appropriate size of the circular groove 7 according to the specifications of the lens. There are seven circular grooves 7 in total, ranging from one to seven from small to large. For example, if the specifications are 172×185×12.7mm, select six circular grooves from the center to the periphery of the processing table 2, and then plug the vacuum auxiliary hole 8 of the seventh circular groove 7;

[0058] 3. Adjust the height and rotation angle of the first support shaft 3 and the second support shaft 4 according to the shape and thickness of the lens, so that the height and angle of the head of the first positioning bar 5 and the second positioning bar 6 match the shape of the lens;

[0059] 4. Place the lens on the circular groove 7, and make the edge of the lens fit with the head of the first positioning bar 5 and the second positioning bar 6, open the adsorption hole, and the lens is clamped and fixed.

[0060] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lens clamping device, characterized in that: include: A base (1), wherein a raised processing platform (2) is provided on the base (1), and an upper surface of the processing platform (2) is provided with adsorption holes for fixing a lens to be processed; A first support shaft (3) and a second support shaft (4), wherein the first support shaft (3) and the second support shaft (4) are both fixed to the processing table (2); and a first guide hole and a second guide hole are respectively provided on the outer circumference of the first support shaft (3) and the second support shaft (4); a T-shaped first positioning bar (5) and a second positioning bar (6), wherein the tail portions of the first positioning bar (5) and the second positioning bar (6) are respectively inserted into the first guide hole and the second guide hole, and are respectively movable along the inner walls of the first guide hole and the second guide hole, and are respectively fixed to the first support shaft (3) and the second support shaft (4); The upper surface of the processing table (2) is provided with a plurality of serpentine grooves (7) from the inside to the outside, and the plurality of adsorption holes are located in the serpentine grooves (7); The adsorption holes include a plurality of vacuum auxiliary holes (8) passing through the center of the meandering groove (7) and arranged in a straight line, and a vacuum main hole (9) opened on the side of the processing table (2) and capable of connecting the plurality of vacuum auxiliary holes (8); The first guide hole and the second guide hole are respectively inserted with a first screw (10) and a second screw (11), and can be fixed to the first positioning bar (5) and the second positioning bar (6) by rotating the first screw (10) and the second screw (11); By moving the height of the first support shaft (3) and the second support shaft (4), the height of the first positioning bar (5) and the second positioning bar (6) can be adjusted; It also includes an Ω-shaped first screw buckle (12), which is wrapped around the outer peripheral surface of the first support shaft (3) and fixes the first support shaft (3) and the processing table (2) by fixing the two ends to the processing table (2); It also includes an Ω-shaped second screw buckle, which is wrapped around the outer peripheral surface of the second support shaft (4) and fixes the second support shaft (4) and the processing table (2) by fixing the two ends to the processing table (2); The first support shaft (3) and the second support shaft (4) are both fixed to the outer peripheral surface of the processing table (2); The base (1) is provided with a plurality of screw holes (13) for fixing the lens clamping device to a workbench.

2. A lens clamping method, characterized in that: The lens clamping device according to claim 1 comprises the following steps: Fix the base (1) to the workbench and use a dial indicator to calibrate the upper surface of the processing table (2) to locate the reference; The heights of the first support shaft (3) and the second support shaft (4) are adjusted according to the thickness of the lens to be processed, the first positioning bar (5) and the second positioning bar (6) are respectively inserted into the first guide hole and the second guide hole, and the angles of the heads of the first positioning bar (5) and the second positioning bar (6) are adjusted with the aid of a micrometer according to the shape of the lens, and the first screw (10) and the second screw (11) are respectively locked; The lens is placed on the surface of the processing table (2) and fits with the heads of the first positioning bar (5) and the second positioning bar (6), the adsorption holes are opened to adsorb the lens on the processing table (2), and the adsorption area is adjusted by opening or closing the vacuum auxiliary hole (8).

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