Optical lens cutting and clamping device

Abstract

The utility model discloses a cutting and clamping device for an optical lens. The cutting and clamping device comprises a fixing assembly, an adjusting mechanism and a rotating assembly which are sequentially connected from bottom to top. When an optical lens is machined on a centering lathe and needs to be cut off, the optical lens cutting and clamping device is fixed to a horizontal guide rail of the centering lathe through the fixing assembly, and then the central axis of the clamping shaft and the central axis of a spindle of the centering lathe are made to be collinear through the adjusting mechanism; and finally, the optical lens to be cut off is grabbed through the clamping jaw assembly. Due to the fact that the clamping shaft is rotationally connected into the transverse installation cylinder, the centering lathe spindle rotates to drive the optical lens to rotate and meanwhile drives the clamping shaft clamping the optical lens part to be cut off to rotate together, in the process of cutting off the optical lens, the optical lens part to be cut off can be cut off at the moment when the optical lens is about to be cut off. The situation that the optical lens is thrown up due to inconsistent cutting allowance of the centering lathe of the lens cone is avoided, and the situation that the cut optical lens flies out to hurt people or collide with a receiving box is also avoided.

Description

Technical Field

[0001] This application relates to the field of optical lens machining technology, and in particular to an optical lens cutting and clamping device. Background Technology

[0002] As photoelectric sensors increasingly demand higher imaging quality from optical lenses, the coaxiality and optical spacing accuracy between the various lens groups that make up the optical lens directly determine the imaging quality of the optical lens.

[0003] In the assembly and adjustment of existing optical lenses composed of multiple lens groups, each lens group is first centered individually before being installed into the lens barrel. This results in a coaxiality deviation between the optical axis of the lens group and the mechanical rotation center axis of the lens barrel. This can cause imaging quality defects such as coma (coma refers to the fact that a monochromatic conical beam of light emitted from an off-axis object point cannot converge into a sharp point after passing through the optical system due to asymmetry, but instead forms a comet-like spot). Therefore, the centering machine technology that uses the mechanical rotation center axis of the lens barrel as the optical axis reference is increasingly being used in the assembly and adjustment of optical lenses.

[0004] A centering lathe is a piece of equipment used in optical processing. It is mainly used to align the optical axis of an optical lens or lens assembly with the mechanical axis of a metal lens mount to ensure the positioning accuracy of optical components.

[0005] When the lens assembly is about to be cut on a centering lathe, inconsistent cutting allowances in the lens barrel can cause some parts of the cut surface to be broken off while others remain uncut. At this point, the lens assembly, subjected to centrifugal force, will tilt, resulting in an uneven cut surface or even causing the assembly to swing around like a meteor hammer, flying out at the moment of cutting. Current technology, which uses a box to catch the cut lens assembly, presents the following technical problems: 1. The lens assembly is a precision component; due to the high speed at which it flies out during cutting, a collision between the cut assembly and the box can cause damage; 2. The direction of the newly cut lens assembly is uncertain, potentially causing personal injury to the worker. Utility Model Content

[0006] This application provides an optical lens cutting and clamping device, which can solve the technical problems in the prior art where optical lenses easily fly out during cutting, and the high speed at which they fly out easily leads to damage. The technical solution is as follows:

[0007] An optical lens cutting and clamping device is installed on the horizontal guide rail of a centering lathe. An optical lens is clamped on the spindle of the centering lathe. The centering lathe is also provided with a centering instrument that is collinear with the central axis of the spindle of the centering lathe. The optical lens cutting and clamping device is located between the optical lens and the centering instrument. The optical lens cutting and clamping device includes a fixing component, an adjusting mechanism, and a rotating component connected in sequence from bottom to top.

[0008] The fixing component is detachably connected to the horizontal guide rail; the rotating component includes a transverse mounting cylinder and a clamping shaft rotatably connected to the transverse mounting cylinder via a first bearing. The first end of the clamping shaft is connected to a claw assembly, which is used to grip the optical lens to be cut. The second end of the clamping shaft is used to connect to a calibration lens, and the optical axis of the calibration lens is collinear with the central axis of the clamping shaft.

[0009] The adjustment mechanism is connected between the fixed component and the rotating component, and is used to adjust the rotating component so that the central axis of the clamping shaft is collinear with the central axis of the centering lathe spindle;

[0010] The calibration lens includes a standard plane mirror lens and a standard convex mirror lens. The standard plane mirror lens and the centering instrument autocollimation are used to detect and adjust the parallelism between the central axis of the clamping shaft and the optical axis of the centering instrument. The standard convex mirror lens and the centering instrument reflection imaging are used to detect and adjust the coaxiality between the central axis of the clamping shaft and the optical axis of the centering instrument.

[0011] Optionally, the fixing assembly includes an upper clamping plate disposed on the upper side of the horizontal guide rail, a lower clamping plate disposed on the lower side of the horizontal guide rail, and clamping plate locking bolts for locking the upper clamping plate and the lower clamping plate; the upper surface of the horizontal guide rail is provided with a V-shaped guide rib parallel to the rotation center axis of the centering lathe, and the lower surface of the upper clamping plate is provided with a V-shaped groove 204 matching the V-shaped guide rib.

[0012] Optionally, the adjusting mechanism includes a lifting assembly, which includes a lifting cylinder, a lifting screw, and a lifting adjusting nut threadedly to the lifting screw. The lower end of the lifting cylinder is vertically connected to the upper surface of the upper clamping plate, and the lifting adjusting nut is rotatably connected to the upper end of the lifting cylinder. The lifting screw is threadedly connected to the lifting adjusting nut, and the lower end of the lifting screw is located inside the lifting cylinder. The inner wall of the lifting cylinder is provided with an axially extending anti-rotation rib, and the outer surface of the lifting screw is provided with an anti-rotation groove that can be engaged with the anti-rotation rib. The lifting cylinder is provided with a lifting locking screw hole, and a lifting locking bolt is provided in the lifting locking screw hole.

[0013] Optionally, a leveling assembly is also included. The leveling assembly comprises a lower fixed plate and an upper floating plate. The lower fixed plate is fixedly connected to the upper end of the lifting screw and shares a central axis with the lifting screw. The lower fixed plate has three leveling screw holes evenly distributed around the central axis of the lower fixed plate. Each leveling screw hole contains a leveling bolt. The lower surface of the upper floating plate has recesses corresponding to the three leveling screw holes. The shank of each leveling bolt passes through the leveling screw hole from bottom to top and abuts against the corresponding recess on the upper floating plate. The leveling assembly also includes a first connecting bolt and a connecting nut. The upper floating plate has an upper stepped hole at its center, and the lower fixed plate has a lower stepped hole at its center. The first connecting bolt passes upward through the lower stepped hole into the upper stepped hole and connects to the connecting nut. A gap exists between the upper floating plate and the lower fixed plate.

[0014] Optionally, a first compression spring is fitted onto the horizontal adjusting bolt located between the upper floating plate and the lower fixed plate; a second compression spring is fitted onto the screw between the lower stepped hole and the screw head of the first connecting bolt.

[0015] Optionally, it also includes an orientation adjustment assembly, which includes: a connecting plate, the lower side of which is fixedly connected to the upper floating plate; a vertical mounting cylinder vertically connected to the upper side of the connecting plate; and an orientation shaft rotatably connected to the vertical mounting cylinder via a second bearing, the upper end of which is fixedly connected to the outer surface of the horizontal mounting cylinder; the vertical mounting cylinder is provided with an orientation locking screw hole, and an orientation locking bolt is provided in the orientation locking screw hole.

[0016] Optionally, the connecting plate is provided with a plurality of waist-shaped holes, the long axis of which is perpendicular to the extension direction of the horizontal guide rail, and the connecting plate is connected to the upper floating plate by a second connecting bolt.

[0017] Optionally, the claw assembly includes: a circular base plate, a clamping cylinder disposed on a first side of the circular base plate, and a connecting cylinder disposed on the other side of the circular base plate, wherein the connecting cylinder and the clamping cylinder share a central axis; the clamping cylinder has a plurality of clamping screw holes evenly distributed circumferentially, each clamping screw hole being provided with a clamping bolt, and the connecting cylinder is used to connect to the first end of the clamping shaft.

[0018] Optionally, the clamping sleeve has multiple inner diameter specifications, and the clamping bolt has multiple length specifications.

[0019] Optionally, a flexible washer is provided at the end of the clamping bolt facing the central axis of the clamping cylinder. The beneficial effects of the technical solution provided in this application embodiment include at least the following:

[0020] An optical lens cutting and clamping device includes a fixing component, an adjusting mechanism, and a rotating component connected sequentially from bottom to top. When an optical lens needs to be cut after machining on a centering lathe, the optical lens cutting and clamping device is first fixed to the horizontal guide rail of the centering lathe by the fixing component. Then, the adjusting mechanism makes the central axis of the clamping shaft collinear with the central axis of the centering lathe spindle. Finally, the optical lens to be cut is gripped by the jaw assembly. After the centering lathe is started, since the clamping shaft is rotatably connected in the transverse mounting cylinder, the rotation of the centering lathe spindle drives the optical lens to rotate, and at the same time, it drives the clamping shaft holding the portion of the optical lens to be cut to rotate together. In this way, during the cutting process, because the portion of the optical lens to be cut is clamped by the jaw assembly, the optical lens will not swing like a meteor hammer due to inconsistent cutting allowance of the lens barrel centering lathe at the moment of cutting, and the cut optical lens will not fly out and injure people or collide with the receiver box. Therefore, using the optical lens cutting and clamping device of this application to cut optical lenses has the advantages of safety, reliability, and high cutting accuracy.

[0021] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the optical lens cutting and clamping device provided in this application being installed on a centering lathe;

[0024] Figure 2 This is a perspective view of the optical lens cutting and clamping device provided in the embodiments of this application;

[0025] Figure 3 This is a cross-sectional view of the standard planar mirror lens provided in the embodiments of this application;

[0026] Figure 4 This is a cross-sectional view of a standard convex mirror lens provided in an embodiment of this application;

[0027] Figure 5 This is a rear view of the optical lens cutting and clamping device provided in the embodiments of this application;

[0028] Figure 6 This is a left view of the optical lens cutting and clamping device provided in the embodiments of this application.

[0029] Figure 7 Figure 6 A cross-sectional view of the optical lens cutting clamping device from plane AA;

[0030] Figure 8 This is a top view of the optical lens cutting and clamping device provided in the embodiments of this application;

[0031] Figure 9 This is a left view of the jaw assembly in the optical lens cutting clamping device provided in the embodiments of this application.

[0032] Explanation of reference numerals in the attached figures

[0033] 1-Centering lathe; 101-Horizontal guide rail; 102-V-shaped guide rib; 103-Centering instrument; 104-Lathe tool; 105-Centering lathe centering computer; 2-Fixed assembly; 201-Upper clamping plate; 202-Lower clamping plate; 203-Clamping plate locking bolt; 3-Rotating assembly; 301-Transverse mounting cylinder; 302-First bearing; 303-Clamping shaft; 4-Claw assembly; 401-Circular base plate; 402-Clamping sleeve; 403-Connecting cylinder; 404-Clamping bolt; 405-Flexible gasket; 5-Standard plane mirror lens; 6-Standard convex mirror lens; 7-Lifting assembly; 701- 702-Lifting cylinder; 703-Lifting adjusting nut; 704-Anti-rotation groove; 705-Lifting locking bolt; 8-Horizontal adjustment assembly; 801-Lower fixed plate; 802-Upper floating plate; 803-Horizontal adjusting bolt; 804-First connecting bolt; 805-Connecting nut; 806-First compression spring; 807-Second compression spring; 9-Orientation adjustment assembly; 901-Connecting plate; 902-Vertical mounting cylinder; 903-Second bearing; 904-Orientation shaft; 905-Orientation locking bolt; 906-Oval hole; 907-Second connecting bolt; 10-Optical lens. Detailed Implementation

[0034] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0035] In this disclosure, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the relative positions of the corresponding components in the direction of gravity when they are in use, and "inner" and "outer" refer to their relative positions to the contours of the corresponding components themselves. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance implications. In the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements.

[0036] Optical lenses consist of lens groups and lens barrels. Centering technology, which uses the mechanical rotation center axis of the lens barrel as the optical axis reference, is used in the assembly and adjustment of optical lenses. However, when the lens group is cut after the centering is completed, the inconsistent cutting allowance of the lens barrel centering machine can cause some parts of the lens barrel to be cut off while others are not. At this time, the lens group will tilt due to the influence of centrifugal force, resulting in an uneven cut surface or even causing the lens group to swing like a meteor hammer. This not only causes a large deviation in the measurement of optical interval, but also causes product damage or unnecessary personal injury when using a box to receive the lens group.

[0037] According to the embodiments of this application, refer to Figures 1 to 9 As shown, an optical lens cutting and clamping device is mounted on a horizontal guide rail 101 of a centering lathe 1. An optical lens 10 is clamped on the spindle of the centering lathe 1. The extension direction of the horizontal guide rail 101 of the centering lathe 1 is parallel to the central axis of the spindle. A centering instrument 103, which is collinear with the central axis of the spindle of the centering lathe 1, is also provided on the centering lathe 1. The optical lens cutting and clamping device is located between the optical lens and the centering instrument 103. The optical lens cutting and clamping device includes a fixing component 2, an adjusting mechanism, and a rotating component 3 connected sequentially from bottom to top.

[0038] Among them, reference Figure 2 As shown, the fixing component 2 is detachably connected to the horizontal guide rail 101; the rotating component 3 includes a horizontal mounting cylinder 301 and a clamping shaft 303 rotatably connected to the horizontal mounting cylinder 301 via a first bearing 302. The first end of the clamping shaft 303 is connected to a claw assembly 4, which is used to grip the optical lens 10 to be cut. The second end of the clamping shaft 303 is used to connect a calibration lens, and the optical axis of the calibration lens is collinear with the central axis of the clamping shaft 303.

[0039] The adjustment mechanism is connected between the fixed component 2 and the rotating component 3, and is used to adjust the rotating component 3 so that the central axis of the clamping shaft 303 is collinear with the central axis of the spindle of the centering lathe 1.

[0040] Among them, reference Figure 3 and Figure 4 As shown, the standard plane mirror lens 5 and the centering instrument 103 autocollimation imaging are used to detect and adjust the parallelism between the central axis of the clamping shaft 303 and the optical axis of the centering instrument 103. The standard convex mirror lens 6 and the centering instrument 103 reflection imaging are used to detect and adjust the coaxiality between the central axis of the clamping shaft 303 and the optical axis of the centering instrument 103. To facilitate debugging, calibration, and observation, a centering lathe centering computer 105 for display can be installed on the centering lathe 1.

[0041] In the above embodiments, when the optical lens 10 needs to be cut after being processed on the centering lathe 1, the optical lens cutting clamping device is first fixed on the horizontal guide rail 101 of the centering lathe 1 by the fixing component 2. Then, the central axis of the clamping shaft 303 is made collinear with the central axis of the spindle of the centering lathe 1 by the adjustment mechanism. The standard plane mirror lens 5 and the centering instrument 103 autocollimate imaging can adjust the parallelism between the central axis of the clamping shaft 303 and the optical axis of the centering instrument 103. The standard convex mirror lens 6 and the centering instrument 103 reflect imaging can adjust the coaxiality between the central axis of the clamping shaft 303 and the optical axis of the centering instrument (103). After the adjustment is completed, the optical lens 10 to be cut is gripped by the jaw assembly 4. When the centering lathe 1 is started, the rotation of the main spindle of the centering lathe 1, which is rotatably connected to the transverse mounting cylinder 301, causes the optical lens 10 to rotate. Simultaneously, the clamping shaft 303, which holds the portion of the optical lens 10 to be cut, rotates as well. Thus, during the cutting process of the optical lens 10, because the portion of the optical lens 10 to be cut is held by the jaw assembly 4, the optical lens 10 will not swing like a meteor hammer due to inconsistent cutting allowances on the lens barrel centering lathe, nor will the cut optical lens 10 fly out and injure people or collide with the receiver box. Therefore, using the optical lens cutting clamping device of this application to cut the optical lens 10 has the advantages of safety, reliability, and high cutting accuracy.

[0042] According to the embodiments of this application, refer to Figure 2 , Figure 6 and Figure 7 As shown, the fixing component 2 includes an upper clamping plate 201 disposed on the upper side of the horizontal guide rail 101, a lower clamping plate 202 disposed on the lower side of the horizontal guide rail 101, and clamping plate locking bolts 203 for locking the upper clamping plate 201 and the lower clamping plate 202.

[0043] The upper surface of the horizontal guide rail 101 is provided with a V-shaped guide rib 102 parallel to the rotation center axis of the centering lathe 1, and the lower surface of the upper clamping plate 201 is provided with a V-shaped groove matching the V-shaped guide rib 102.

[0044] In the above embodiments, since the upper surface of the horizontal guide rail 101 is provided with a V-shaped guide rib 102, and the lower clamping plate 202 is provided with a V-shaped groove matching the V-shaped guide rib 102, the fixing component 2 can move along the V-shaped guide rib 102. When the fixing component 2 moves to a designated position and needs to be fixed, the upper clamping plate 201 and the lower clamping plate 202 can be fixed to the horizontal guide rail 101 by locking bolts. In other embodiments, the fixing component 2 can also be two screws with nuts provided on the lower side of the adjusting component, and two elongated holes provided on the horizontal guide rail 101. The long axis of the elongated holes is parallel to the extension direction of the horizontal guide rail 101. When the optical lens cutting clamping device needs to be fixed on the horizontal guide rail 101, the two screws are passed through the two elongated holes and locked by nuts.

[0045] According to the embodiments of this application, refer to Figure 5 and Figure 6 As shown, the adjustment mechanism may include a lifting assembly 7, which includes a lifting cylinder 701, a lifting screw 702, and a lifting adjustment nut 703 that is threadedly matched with the lifting screw 702.

[0046] The lower end of the lifting cylinder 701 is vertically connected to the upper surface of the upper clamping plate 201. The lifting adjusting nut 703 is rotatably connected to the upper end of the lifting cylinder 701. The lifting screw 702 is threadedly connected to the lifting adjusting nut 703, and the lower end of the lifting screw 702 is located inside the lifting cylinder 701. The inner wall of the lifting cylinder 701 is provided with an axially extending anti-rotation rib. The outer surface of the lifting screw 702 is provided with an anti-rotation groove 704 that can be engaged with the anti-rotation rib. The lifting cylinder 701 is provided with a lifting locking screw hole, and a lifting locking bolt 705 is provided in the lifting locking screw hole. In this case, since the anti-rotation rib is engaged in the anti-rotation groove 704, the rotation of the lifting screw 702 is restricted. Rotating the lifting adjusting nut 703 can drive the lifting screw 702 to rise or fall. After the height adjustment is completed, simply tightening the lifting locking bolt 705 will fix the height of the optical lens cutting clamping device.

[0047] According to the embodiments of this application, refer to Figure 5 and Figure 6As shown, the adjustment mechanism may further include a horizontal adjustment component 8, which includes a lower fixed plate 801 and an upper floating plate 802. The lower fixed plate 801 is fixedly connected to the upper end of the lifting screw 702 and shares a central axis with the lifting screw 702. The lower fixed plate 801 is provided with three horizontal adjustment screw holes, which are evenly distributed around the central axis of the lower fixed plate 801. Each horizontal adjustment screw hole is provided with a horizontal adjustment bolt 803. The lower surface of the upper floating plate 802 is provided with a connection to the three horizontal adjustment screw holes. The horizontal adjustment assembly 8 includes a corresponding recess, with the rod of each horizontal adjustment bolt 803 passing through the horizontal adjustment screw hole from bottom to top and abutting against the corresponding recess on the upper floating plate 802; the horizontal adjustment assembly 8 also includes a first connecting bolt 804 and a connecting nut 805, the upper floating plate 802 having an upper stepped hole at its center, and the lower fixed plate 801 having a lower stepped hole at its center, the first connecting bolt 804 passing through the lower stepped hole upward into the upper stepped hole and connecting to the connecting nut 805; wherein, there is a gap between the upper floating plate 802 and the lower fixed plate 801.

[0048] In the above embodiment, a gap is left between the upper floating plate 802 and the lower fixed plate 801. At the same time, the first connecting bolt 804 and the connecting nut 805 do not need to be tightened. The connecting nut 805 only needs to be screwed on the end of the first connecting bolt 804 to prevent the upper floating plate 802 from detaching from the lower fixed plate 801. The upper floating plate 802 forms a plane by being abutted by three horizontal adjusting bolts 803. The levelness of the upper floating plate 802 can be adjusted by adjusting the extension length of the horizontal adjusting bolts 803.

[0049] Furthermore, since the optical lens 10 is a precision component, there will still be gaps between the horizontal adjusting bolt 803 and the horizontal adjusting screw hole. These gaps will cause the optical lens 10 to produce some extremely slight radial runout during rotation. In order to eliminate the gaps and reduce the error, refer to Figure 7 As shown, a first compression spring 806 is sleeved on the horizontal adjusting bolt 803 located between the upper floating plate 802 and the lower fixed plate 801, and a second compression spring 807 is sleeved on the screw between the lower stepped hole and the screw head of the first connecting bolt 804.

[0050] According to the embodiments of this application, refer to Figure 5 and Figure 7 As shown, the adjustment mechanism may further include an orientation adjustment component 9, which includes:

[0051] The lower side of the connecting plate 901 is fixedly connected to the upper floating plate 802;

[0052] A vertical mounting cylinder 902 is vertically connected to the upper side of the connecting plate 901;

[0053] Additionally, an azimuth shaft 904 is rotatably connected within the vertical mounting cylinder 902 via a second bearing 903, and the upper end of the azimuth shaft 904 is fixedly connected to the outer surface of the transverse mounting cylinder 301.

[0054] The vertical mounting cylinder 902 is provided with an orientation locking screw hole, and an orientation locking bolt 905 is provided in the orientation locking screw hole. In the above embodiment, when the clamping shaft 303 and the central axis of the centering lathe 1 spindle are at an angle and need to be adjusted to be parallel, the orientation shaft 904 can be rotated for adjustment. After the orientation adjustment is completed, the orientation locking bolt 905 can be tightened for fixation.

[0055] According to the embodiments of this application, refer to Figure 8 As shown, the connecting plate 901 is provided with a plurality of oblong holes 906, the long axis of which is perpendicular to the extension direction of the horizontal guide rail 101. The connecting plate 901 is connected to the upper floating plate 802 by a second connecting bolt 907. In this case, when there is a deviation between the clamping shaft 303 and the spindle of the centering lathe 1 in a direction perpendicular to the horizontal guide rail 101, it can be adjusted by moving the connecting plate 901, and then fixed by the second connecting bolt 907 after adjustment. In one embodiment, the number of oblong holes 906 can be eight, and the eight holes are evenly distributed on the connecting plate 901.

[0056] According to the embodiments of this application, refer to Figure 2 and Figure 9 As shown, the claw assembly 4 may include: a circular base plate 401, a claw cylinder 402 disposed on a first side of the circular base plate 401, and a connecting cylinder 403 disposed on the other side of the circular base plate 401, wherein the connecting cylinder 403 and the claw cylinder 402 share a common central axis.

[0057] The clamping sleeve 402 has a plurality of clamping screw holes evenly distributed along the circumference, and each clamping screw hole is provided with a clamping bolt 404. The connecting sleeve 403 is used to connect the first end of the clamping shaft 303.

[0058] The first end of the clamping shaft 303 may be provided with an external thread, and the connecting cylinder 403 may have an internal thread. The claw assembly 4 can be screwed to the first end of the clamping shaft 303 through the connecting cylinder 403.

[0059] Furthermore, in order to enable the optical lens cutting clamping device to accommodate optical lenses 10 of more diameters, the caliper 402 has multiple inner diameter specifications, and the clamping bolt 404 has multiple length specifications.

[0060] Furthermore, according to embodiments of this application, refer to Figure 9 As shown, to prevent the clamping bolt 404 from causing wear to the optical lens 10, a flexible gasket 405 is provided at the end of the clamping bolt 404 facing the central axis of the cassette 402. The flexible gasket 405 can be made of silicone or rubber, and this application does not limit it.

[0061] refer to Figures 1 to 9 The working principle of the optical lens cutting and clamping device of this application will be explained below with reference to specific operating steps:

[0062] Step 1: After the outer circumferential surface of the optical lens 10 is machined on the centering lathe 1, the optical lens cutting clamping device is first clamped and fixed to the horizontal guide rail 101 of the centering lathe 1 through the fixing component 2. Then, a suitable matching jaw component 4 is selected according to the diameter of the completed optical lens 10. The specific selection method for the diameter of the chuck 402 is as follows: if the diameter of the optical lens 10 is 20mm to 45mm (inclusive), the diameter of the chuck 402 can be selected as 50mm; if the diameter of the optical lens 10 is 45mm to 100mm (inclusive), the diameter of the chuck 402 can be selected as 130mm.

[0063] Step 2: By sliding the V-groove of the upper clamping plate 201 relative to the V-shaped guide rib 102 of the horizontal guide rail 101, the optical lens cutting clamping device is moved along the horizontal guide rail 101, so that the clasp 402 is sleeved on the optical lens 10 and a certain gap is left between the outer end face of the clasp 402 and the cutting tool 104. After selecting the clamping position, the lower clamping plate 202 and the upper clamping plate 201 are locked by rotating the clamping plate locking bolt 203 to ensure that the optical lens cutting clamping device has no axial or radial shaking.

[0064] Step 3: Install the standard plane mirror lens 5 to the second end of the clamping shaft 303. The centering instrument 103 and the standard plane mirror lens 5 form an autocollimation image. The formed autocollimation image is displayed as a crosshair on the centering computer 105 by the centering lathe 1. At this time, rotate the standard plane mirror lens 5 so that the crosshair autocollimation image of the standard plane mirror lens 5 forms a circular trajectory on the centering computer 105 with the optical axis of the centering instrument 103 as the center. The diameter of the circle formed is the tilt deviation. At this time, by rotating the three horizontal adjusting bolts 803 of the lower fixed plate 801, the vertical deviation between the autocollimation image and the optical axis of the centering instrument 103 is adjusted, and the horizontal deviation between the autocollimation image and the optical axis of the centering instrument 103 is adjusted by swinging the left and right azimuth axis 904.

[0065] Step 4: After the standard plane mirror lens 5 is adjusted to be completely aligned with the optical axis of the centering device 103, tighten the azimuth locking bolt 905 to ensure that the azimuth axis 904, after tilt adjustment, will not sway left or right in the azimuth axis 904 connecting base, thus ensuring the stability of the azimuth axis 904.

[0066] Step 5: Replace the standard plane mirror lens 5 at the second end of the clamping shaft 303 with the standard convex mirror lens 6, slide the centering instrument 103 along the V-shaped guide rib 102 of the horizontal guide rail 101 of the centering lathe 1 to find the spherical center image of the standard convex mirror lens 6. The spherical center image is displayed as a cross image on the centering computer 105 of the centering lathe 1.

[0067] Step 6: Rotate the lifting adjustment nut 703 to make the lifting screw 702 move up and down in the lifting cylinder 701, and correct the height deviation between the optical axis of the standard convex mirror lens 6 and the optical axis of the centering instrument 103. After the correction is completed, tighten the lifting locking bolt 705.

[0068] Step 7: Loosen the second connecting bolt 907, adjust the connecting plate 901 back and forth, so that the standard convex mirror lens 6 moves back and forth in the radial horizontal direction, thereby correcting the deviation between the optical axis of the standard convex mirror lens 6 and the optical axis of the front centering instrument 103. After the correction is completed, tighten the second connecting bolt 907 to make the connecting plate 901 and the upper floating plate 802 firmly connected and prevent them from sliding against each other.

[0069] Since the cassette 402, clamping shaft 303 and standard lens are coaxially and laterally connected, the optical axis of the centering device 103 is consistent with the optical axis of the centering machine optical lens 10. Through the above-mentioned correction of the consistency between the optical axis of the standard lens and the optical axis of the centering device 103, the rotation center of the cassette 402 is consistent with the optical axis of the optical lens 10 being centered. At this time, tighten the clamping bolt 404 so that the flexible washer 405 at the front end of the clamping bolt 404 abuts against the outer circumferential surface of the centering machine optical lens 10. Finally, the cutting tool 104 cuts at the designed size.

[0070] The elasticity of the flexible pad 405 reduces the radial clamping stress of the clamping bolt 404 on the circumferential surface of the optical lens 10 of the centering machine, and also plays a role in preventing slippage. It ensures the stability of the cassette 402 when it rotates coaxially with the optical lens 10 of the centering machine, thereby avoiding the risk of the optical lens 10 of the centering machine falling off.

[0071] When the clamping bolt 404 is clamped with the centering optical lens 10, some extremely slight radial runout may occur due to adjustment or clamping errors when the caliper 402 clamps the centering optical lens 10 and rotates together. Therefore, a first compression spring 806 is installed on the horizontal adjustment screw and a second compression spring 807 is installed on the first connecting bolt 804. These slight radial runouts can be directly eliminated by the elastic connection of the second compression spring 807, and will not cause stress damage to the optical lens.

[0072] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0073] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0074] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. An optical lens cutting and clamping device, mounted on a horizontal guide rail (101) of a centering lathe (1), wherein an optical lens (10) is clamped on the spindle of the centering lathe (1), and a centering instrument (103) collinear with the central axis of the spindle of the centering lathe (1) is also provided on the centering lathe (1), the optical lens cutting and clamping device being located between the optical lens (10) and the centering instrument (103), characterized in that, It includes a fixed component (2), an adjustment mechanism, and a rotating component (3) connected sequentially from bottom to top; The fixing component (2) is detachably connected to the horizontal guide rail (101); The rotating assembly (3) includes a transverse mounting cylinder (301) and a clamping shaft (303) rotatably connected to the transverse mounting cylinder (301) via a first bearing (302). The first end of the clamping shaft (303) is connected to a claw assembly (4), which is used to grip the optical lens (10) to be cut. The second end of the clamping shaft (303) is used to connect a calibration lens. The optical axis of the calibration lens is collinear with the central axis of the clamping shaft (303). The adjustment mechanism is connected between the fixed component (2) and the rotating component (3) and is used to adjust the rotating component (3) so that the central axis of the clamping shaft (303) is collinear with the central axis of the spindle of the centering lathe (1); The calibration lens includes a standard plane mirror lens (5) and a standard convex mirror lens (6). The standard plane mirror lens (5) and the centering instrument (103) are used for autocollimation imaging to detect and adjust the parallelism between the central axis of the clamping shaft (303) and the optical axis of the centering instrument (103). The standard convex mirror lens (6) and the centering instrument (103) are used for reflection imaging to detect and adjust the coaxiality between the central axis of the clamping shaft (303) and the optical axis of the centering instrument (103).

2. The optical lens cutting and clamping device according to claim 1, characterized in that, The fixing component (2) includes an upper clamping plate (201) disposed on the upper side of the horizontal guide rail (101), a lower clamping plate (202) disposed on the lower side of the horizontal guide rail (101), and clamping plate locking bolts (203) for locking the upper clamping plate (201) and the lower clamping plate (202). The upper surface of the horizontal guide rail (101) is provided with a V-shaped guide rib (102) parallel to the rotation center axis of the centering lathe (1), and the lower surface of the upper clamping plate (201) is provided with a V-shaped groove matching the V-shaped guide rib (102).

3. The optical lens cutting and clamping device according to claim 2, characterized in that, The adjustment mechanism includes a lifting assembly (7), which includes a lifting cylinder (701), a lifting screw (702), and a lifting adjustment nut (703) that is threadedly matched with the lifting screw (702). The lower end of the lifting cylinder (701) is vertically connected to the upper surface of the upper clamping plate (201). The lifting adjusting nut (703) is rotatably connected to the upper end of the lifting cylinder (701). The lifting screw (702) is threadedly connected to the lifting adjusting nut (703), and the lower end of the lifting screw (702) is located inside the lifting cylinder (701). The inner wall of the lifting cylinder (701) is provided with an anti-rotation rib extending axially. The outer surface of the lifting screw (702) is provided with an anti-rotation groove (704) that can be inserted into the anti-rotation rib. The lifting cylinder (701) is provided with a lifting locking screw hole, and a lifting locking bolt (705) is provided in the lifting locking screw hole.

4. The optical lens cutting and clamping device according to claim 3, characterized in that, The adjustment mechanism further includes a horizontal adjustment component (8), which includes a lower fixed plate (801) and an upper floating plate (802). The lower fixed plate (801) is fixedly connected to the upper end of the lifting screw (702) and shares a central axis with the lifting screw (702). The lower fixed plate (801) is provided with three horizontal adjustment screw holes, which are evenly distributed around the central axis of the lower fixed plate (801). Each horizontal adjustment screw hole is provided with a horizontal adjustment bolt (803). The lower surface of the upper floating plate (802) is provided with a recess corresponding to the three horizontal adjustment screw holes. The rod of each horizontal adjustment bolt (803) passes through the horizontal adjustment screw hole from bottom to top and abuts against the corresponding recess on the upper floating plate (802). The horizontal adjustment assembly (8) further includes a first connecting bolt (804) and a connecting nut (805). The upper floating plate (802) has an upper stepped hole at its center, and the lower fixed plate (801) has a lower stepped hole at its center. The first connecting bolt (804) passes through the lower stepped hole upward into the upper stepped hole and connects to the connecting nut (805). There is a gap between the upper floating disk (802) and the lower fixed disk (801).

5. The optical lens cutting and clamping device according to claim 4, characterized in that, A first compression spring (806) is fitted on the horizontal adjusting bolt (803) located between the upper floating plate (802) and the lower fixed plate (801); a second compression spring (807) is fitted on the screw between the lower stepped hole and the screw head of the first connecting bolt (804).

6. The optical lens cutting and clamping device according to claim 5, characterized in that, The adjustment mechanism further includes an orientation adjustment component (9), which includes: A connecting plate (901) is fixedly connected to the upper floating disk (802) on its lower side; A vertical mounting cylinder (902) is vertically connected to the upper side of the connecting plate (901); In addition, an azimuth shaft (904) is rotatably connected to the vertical mounting cylinder (902) via a second bearing (903), and the upper end of the azimuth shaft (904) is fixedly connected to the outer surface of the horizontal mounting cylinder (301); The vertical mounting cylinder (902) is provided with a directional locking screw hole, and a directional locking bolt (905) is provided in the directional locking screw hole.

7. The optical lens cutting and clamping device according to claim 6, characterized in that, The connecting plate (901) is provided with a plurality of waist-shaped holes (906), the long axis of the waist-shaped holes (906) being perpendicular to the extension direction of the horizontal guide rail (101), and the connecting plate (901) being connected to the upper floating plate (802) by a second connecting bolt (907).

8. The optical lens cutting and clamping device according to claim 1, characterized in that, The claw assembly (4) includes: a circular base plate (401), a claw cylinder (402) disposed on a first side of the circular base plate (401), and a connecting cylinder (403) disposed on the other side of the circular base plate (401), wherein the connecting cylinder (403) and the claw cylinder (402) share a central axis; The clamping sleeve (402) has a plurality of clamping screw holes evenly distributed along the circumference, and each clamping screw hole is provided with a clamping bolt (404). The connecting sleeve (403) is used to connect the first end of the clamping shaft (303).

9. The optical lens cutting and clamping device according to claim 8, characterized in that, The clamping sleeve (402) has multiple inner diameter specifications, and the clamping bolt (404) has multiple length specifications.

10. The optical lens cutting and clamping device according to claim 9, characterized in that, A flexible washer (405) is provided at the end of the clamping bolt (404) facing the central axis of the chuck (402).

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