CN109940554B - Optical lens group clamping ring dismounting device and lens dismounting method - Google Patents
Optical lens group clamping ring dismounting device and lens dismounting method Download PDFInfo
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- CN109940554B CN109940554B CN201910344559.9A CN201910344559A CN109940554B CN 109940554 B CN109940554 B CN 109940554B CN 201910344559 A CN201910344559 A CN 201910344559A CN 109940554 B CN109940554 B CN 109940554B
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- pressing ring
- ring spanner
- lens group
- spanner
- clamping ring
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- 230000003287 optical effect Effects 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 88
- 125000006850 spacer group Chemical group 0.000 claims abstract description 32
- -1 polytetrafluoroethylene Polymers 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 239000011088 parchment paper Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000003292 glue Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Lenses (AREA)
Abstract
The invention relates to a pressing ring dismounting device and a lens dismounting method for an optical lens group, which solve the problems that the existing pressing ring dismounting method is easy to cause scratch and pollution of an optical lens and increase production cost. The dismounting device comprises a central positioning shaft, a lens group positioning sleeve, a nut, a second spacer, a first spacer, a clamping ring spanner handle, a clamping ring spanner straight rod, a clamping ring spanner arm seat and a clamping ring spanner torsion bar; the lens group positioning sleeve is sleeved on the outer side of the lens seat; the upper end of the lens group positioning sleeve is provided with a cross beam, the lower end of the central positioning shaft is provided with a positioning cylinder, and the positioning cylinder is matched with a positioning hole on the cross beam; the lower end of the central positioning shaft is fixedly connected with the cross beam, and the upper end of the central positioning shaft is sequentially sleeved with a first spacer bush, a second spacer bush, a pressing ring spanner straight rod and a nut from bottom to top; one end of the pressing ring spanner arm seat is slidably sleeved on the straight rod of the pressing ring spanner, the other end of the pressing ring spanner arm seat is fixedly connected with the torsion bar of the pressing ring spanner, and the pressing ring spanner handle is arranged at the end part of the straight rod of the pressing ring spanner.
Description
Technical Field
The invention relates to the field of optical precision instruments, in particular to an optical lens group clamping ring dismounting device for preventing a lens surface from being scratched and a lens dismounting method.
Background
In order to ensure that the optical lens has excellent imaging quality, in addition to ensuring the consistency of optical axes of the lens groups, the optical lens generally consists of a plurality of lens groups, and in the process of assembling and adjusting, the micro-stress assembly of the lens in each lens group is also required to be ensured, and the micro-stress assembly of the lens is an important link in the assembly of the optical lens and is also a difficult point.
The lens assembly structure shown in fig. 2, wherein the lens 11 and the lens holder 13 are in clearance fit, the lens 11 is firstly installed in the lens holder 13 and then screwed into the pressing ring 14 during assembly. In order to ensure the micro-stress assembly of the optical lens, the optical lens can adapt to working conditions such as vibration, impact and the like, a little silica gel is coated on the external thread of the pressing ring 14 to prevent loosening before screwing in the pressing ring 14, and then silica gel is injected into the outer circular rubber hole of the lens seat 13 to fix the lens. Even so, the lens surface shape is often degraded due to assembly stress and optical finishing, and finally the imaging quality of the whole lens is degraded. At this time, the only way is to remove the lens 11 with poor surface shape and to re-perform the micro-stress assembly. The first step of disassembling the lens 11 is to disassemble the pressing ring 14, as mentioned above, the external thread of the pressing ring 14 of the lens group is coated with silica gel before screwing into the lens holder 13, and a sufficient moment (especially for the lens with the caliber of more than 100 mm) must be applied to unscrew the pressing ring 14, which is very liable to cause the scratch of the lens surface.
The prior art has two methods for disassembling the lens group, namely, a common positioning-free clamping ring spanner is adopted for disassembling the lens group, the spanner is clamped into a clamping groove of the clamping ring during disassembling, and the spanner is very easy to deviate from the clamping groove to scratch an optical mirror surface in the process of screwing out the clamping ring; the second method is to use mechanical processing to carry out destructive dismantling, such as turning off or cutting off a pressing ring of a lens group by a lathe or a milling machine, and the method is at the cost of damaging the structure of mechanical parts, on one hand, the cutting chips generated in the processing are easy to scratch the lens surface, oil stains can cause the pollution of the lens surface, and on the other hand, the mechanical structural parts are damaged and must be reprocessed, so that the production progress is prolonged and the production cost is increased.
Disclosure of Invention
The invention aims to solve the problems that the existing clamp ring dismantling method is easy to cause scratch and pollution of an optical mirror surface and increase production cost, and provides an optical mirror group clamp ring dismantling device capable of avoiding the scratch of the mirror surface and a lens dismantling method.
The specific technical scheme of the invention is as follows:
The dismounting device for the pressing ring of the optical lens group comprises a lens group positioning assembly and a distance-adjustable wrench assembly; the lens group positioning assembly comprises a central positioning shaft, a lens group positioning sleeve, a nut, a second spacer bush and a first spacer bush; the adjustable-distance wrench assembly comprises a pressing ring wrench handle, a pressing ring wrench straight rod, a plurality of groups of pressing ring wrench arm seats and a plurality of groups of pressing ring wrench torsion bars; the lens group positioning sleeve is sleeved on the outer side of the lens seat, and circumferential limiting of the lens group positioning sleeve and the lens seat is realized through the limiting device; the upper end of the lens group positioning sleeve is provided with a cross beam, the lower end of the central positioning shaft is provided with a positioning cylinder, and the positioning cylinder is matched with a positioning hole on the cross beam to realize the coaxial installation of the positioning cylinder and the lens group positioning sleeve; the lower end of the central positioning shaft is fixedly connected with the cross beam, and the central positioning shaft is sequentially sleeved with a first spacer bush, a second spacer bush, a pressing ring spanner straight rod and a nut from bottom to top; the nut is in threaded connection with the center positioning shaft; the multiunit clamping ring spanner arm seat is located the both sides of central location axle, and the slidable suit of one end of clamping ring spanner arm seat is on clamping ring spanner straight-bar, other end and clamping ring spanner torsion bar fixed connection, the dismantlement end and the clamping ring cooperation of clamping ring spanner torsion bar for realize the dismouting of clamping ring, clamping ring spanner handle sets up the tip at clamping ring spanner straight-bar.
Further, the limiting device is a limiting screw, a limiting hole is formed in the peripheral surface of the lens group positioning sleeve, and the limiting screw penetrates through the limiting hole and the glue hole in the lens base to realize circumferential limiting of the lens group positioning sleeve and the lens base.
Further, the disassembly end of the torsion bar of the pressing ring spanner is in a flat head shape or a conical head and is used for disassembling and assembling the pressing ring.
Further, a gasket group sleeved on the central positioning shaft is arranged between the second spacer bush and the straight rod of the clamping ring spanner and between the straight rod of the clamping ring spanner and the nut, and the gasket group comprises two polytetrafluoroethylene gaskets which are overlapped.
Further, the lower extreme of central location axle is provided with flange, central location axle passes through flange and crossbeam fixed connection.
Further, the straight rod of the clamping ring spanner is a straight rod with a rectangular cross section, and the arm seat of the clamping ring spanner is assembled on the straight rod of the clamping ring spanner through the square hole at the head of the arm seat of the clamping ring spanner.
Further, the two ends of the straight rod of the clamping ring spanner are provided with screw rods, and the handle of the clamping ring spanner is in threaded connection with the straight rod of the clamping ring spanner.
Further, a cylindrical hole is formed in the lower end of the clamping ring spanner arm seat, and one end of the torsion bar of the clamping ring spanner is inserted into the cylindrical hole and fixedly connected with the clamping ring spanner arm seat and the torsion bar of the clamping ring spanner through a set screw.
In addition, the invention also provides a lens disassembling method based on the optical lens group clamping ring disassembling device, which comprises the following steps of;
1) Placing the optical lens group on an optical platform, and fixing the optical lens group on the optical platform;
2) Cleaning a rubber column in a screw hole of the lens seat, and ensuring that the limit screw can be screwed in;
3) Sleeving a lens group positioning sleeve on a lens seat, and mounting a limit screw;
4) The central positioning shaft is arranged on a cross beam of the lens group positioning sleeve;
5) Selecting a second spacer bush with matched thickness, and sequentially installing the first spacer bush, the second spacer bush and the gasket group on the central positioning shaft;
6) Assembling a distance-adjustable wrench assembly;
7) The adjustable-distance wrench assembly is arranged in the central positioning shaft, a gasket group and a nut are arranged in the central positioning shaft, the nut is pre-tightened, the wrench is ensured to rotate flexibly, and the distance between torsion bars of the two-end pressing ring wrench is adjusted;
8) The pressing ring is detached by gradually applying force and rotating a straight rod of the pressing ring spanner;
9) And removing the lens group positioning assembly and the adjustable-distance wrench assembly, cleaning the adhesive spots between the outer cylindrical surface of the lens and the inner hole of the lens seat, and finally disassembling the lens by using a sucking disc or a disassembling cylinder.
Further, the step 1) is preceded by a protection step: the mirror surface is protected by using the mirror surface protection cover and the parchment paper, so that the pollution of the mirror surface is avoided.
The invention has the advantages that:
1. According to the invention, the spacing disassembly of the adjustable-distance wrench assembly and the lens group to be disassembled is realized through the central positioning shaft and the lens group positioning sleeve, so that the problems of scratch of an optical mirror surface and damage of an optical piece caused by the fact that a torsion bar of the lens group wrench is separated from a clamping groove of the lens group pressing ring due to overlarge force in the disassembly and assembly of the lens group pressing ring are avoided.
2. The pressing ring dismounting device for the optical lens set solves the problem that the pressing ring structure is damaged due to conventional destructive dismounting (turning the pressing ring by using a machining method and using a special tool until the pressing ring falls off), the pressing ring dismounted by using the device can be reused after being cleaned, the machining period is shortened, the production efficiency is improved, and the production cost is saved.
3. The device for disassembling the pressing ring of the optical lens group has the advantages of simple structure, convenience in manufacture and convenience in use.
Drawings
FIG. 1 is a cross-sectional view of a device for removing a clamping ring of an optical lens assembly according to the present invention;
FIG. 2 is a diagram of a conventional optical lens assembly;
FIG. 3 is a schematic view of a device for disassembling a clamping ring of an optical lens set according to the present invention;
FIG. 4 is a schematic view of a lens assembly positioning sleeve of the device for disassembling an optical lens assembly clamping ring according to the present invention;
FIG. 5 is a schematic view of the structure of the center positioning shaft of the device for disassembling the pressing ring of the optical lens set;
FIG. 6 is a schematic view of a torsion bar of a clamping ring wrench of the clamping ring dismounting device of the optical lens set;
fig. 7 is a schematic view of a press ring structure.
Reference numerals: the clamping device comprises a 1-clamping ring spanner handle, a 2-clamping ring spanner straight rod, a 3-clamping ring spanner arm seat, a 4-central positioning shaft, a 5-nut, a 6-second spacer, a 7-first spacer, an 8-clamping ring spanner torsion bar, a 9-mirror group positioning sleeve, a 10-limiting device, a 11-lens, a 12-set screw, a 13-mirror seat, a 14-clamping ring, a 15-rubber column, a 41-positioning column, a 42-connecting flange, a 91-cross beam, a 92-positioning hole, a 93-limiting hole and a 141-clamping groove.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and specific examples:
The invention provides an optical lens group clamping ring dismounting device capable of avoiding mirror surface scratch, which can be functionally divided into a lens group positioning component with a positioning function and a distance-adjustable spanner component for dismounting a clamping ring.
As shown in fig. 1 to 6, the lens group positioning assembly comprises a central positioning shaft 4, a nut 5, a second spacer 6, a first spacer 7 and a lens group positioning sleeve 9; the adjustable-distance spanner assembly comprises a clamping ring spanner handle 1, a clamping ring spanner straight rod 2, two groups of clamping ring spanner arm seats 3 and two groups of clamping ring spanner torsion bars 8; the lens group positioning sleeve 9 is sleeved on the outer side of the lens seat 13, and circumferential limiting of the lens group positioning sleeve 9 and the lens seat 13 is realized through the limiting device 10; the upper end of the lens group positioning sleeve 9 is provided with a cross beam 91, and the lower end of the central positioning shaft 4 is fixedly connected with the cross beam 91 of the lens group positioning sleeve 9; specifically, the lower end of the center positioning shaft 4 is provided with a connecting flange 42, and the center positioning shaft 4 is fixedly connected with the cross beam 91 through the connecting flange 42. The upper end of the central positioning shaft 4 is sequentially sleeved with a first spacer bush 7, a second spacer bush 6, a pressing ring spanner straight rod 2 and a nut 5 from bottom to top; the nut 5 is in threaded connection with the center positioning shaft 4, so that the straight rod 2 of the clamping ring spanner can only rotate and cannot move up and down; the plurality of groups of ring spanner arm seats 3 are positioned at two sides of the central positioning shaft 4, one end of each ring spanner arm seat 3 is slidably sleeved on the ring spanner straight rod 2, the other end of each ring spanner arm seat is fixedly connected with the ring spanner torsion bar 8, and the dismounting end of each ring spanner torsion bar 8 is in a flat head shape and is used for dismounting the ring 14; the pressing ring spanner handle 1 is arranged at the end part of the pressing ring spanner straight rod 2, so that the pressing ring spanner straight rod 2 can rotate conveniently. The straight rod 2 of the clamping ring spanner is a straight rod with a rectangular cross section, and the arm seat 3 of the clamping ring spanner is assembled on the straight rod 2 of the clamping ring spanner through a square hole at the head part of the arm seat. The two ends of the straight rod 2 of the clamping ring spanner are screw rods, and the handle 1 of the clamping ring spanner is in threaded connection with the straight rod 2 of the clamping ring spanner. The lower extreme of clamping ring spanner arm seat 3 is provided with the cylinder hole, and the one end of clamping ring spanner torsion bar 8 is the conical head, and the conical head inserts the cylinder hole and realizes the fixed connection of clamping ring spanner arm seat 3 and clamping ring spanner torsion bar 8 through holding screw 12. A gasket group sleeved on the central positioning shaft 4 is arranged between the second spacer bush 6 and the pressing ring spanner straight rod 2 and between the pressing ring spanner straight rod 2 and the nut 5, and the gasket group can specifically comprise two polytetrafluoroethylene gaskets which are overlapped.
The limiting device 10 can be a limiting screw, a limiting hole 93 is formed in the outer peripheral surface of the lens group positioning sleeve 9, and the limiting screw penetrates through the limiting hole 93 and the glue hole in the lens seat 13 to realize circumferential limiting of the lens group positioning sleeve 9 and the lens seat 13. The outer cylindrical surface of the lens group positioning sleeve 9 is provided with a plurality of uniformly distributed straight groove structures (namely limiting holes 93) for installing limiting screws, so that the lens group positioning sleeve 9 and the lens group to be disassembled are circumferentially limited. The number of the straight grooves can be set according to the number of the lens group lens seat glue injection holes, and the lens group lens seat glue injection holes are generally designed to be uniformly distributed by 3, 4 or 6, so that the number of the straight grooves can be 12 which is the least common multiple, and the common requirements can be met, and if the number is special, the number can be customized.
As shown in fig. 4, a cross beam 91 is designed at the top of the lens group positioning sleeve 9, a positioning hole 92 is designed at the position where the cross beam 91 intersects with the axis of the inner cylindrical surface of the positioning sleeve, the hole is in small clearance fit (the clearance is preferably 0.02-0.05 mm) with the positioning cylinder 41 of the central positioning shaft 4, and screw holes are uniformly distributed around the hole for installing the central positioning shaft 4. The through hole on the straight rod 2 of the pressing ring spanner is sleeved on the central positioning shaft 4, and the fit clearance is preferably 0.02-0.05 mm so as to limit the X, Y-direction displacement of the spanner of the adjustable-distance pressing ring 14.
The central positioning shaft 4 is of a stepped shaft section structure, a counter bore is designed on the lower end mounting flange, and a hexagon socket head screw penetrates through the counter bore to mount the central positioning shaft 4 on the cross beam 91; the center positioning shaft 4 is provided with a first spacer 7, a second spacer 6 (for adjusting the relative Z-direction height of a matched clamping ring spanner torsion bar 8 and a lens group clamping ring 14), a lower polytetrafluoroethylene gasket group (double-gasket group), a clamping ring spanner straight rod 2, an upper polytetrafluoroethylene gasket (double-gasket group) and a nut 5 (which can be replaced by the double nut 5) from bottom to top in sequence, and the structure limits the Z-direction displacement of the clamping ring 14 spanner and the rotation around the X, Y shaft, so far, the clamping ring 14 spanner can only rotate around the Z-axis. Wherein, the self-lubricating function of the polytetrafluoroethylene gasket material is utilized by the upper polytetrafluoroethylene gasket set and the lower polytetrafluoroethylene gasket set to reduce the damping of the adjustable-distance pressing ring 14 during the rotation of the wrench.
The straight rod 2 of the adjustable-distance clamping ring wrench is of a straight rod structure with a rectangular cross section, and screw rod sections at two ends are used for installing the clamping ring wrench handle 1; the pressing ring spanner arm seat 3 is assembled on the pressing ring spanner straight rod 2 through a square hole at the head part of the pressing ring spanner arm seat and can slide along the straight rod so as to realize the disassembly and assembly of the pressing rings 14 of the mirror group to be disassembled with different diameters and sizes; the lower end cylindrical hole of the pressing ring spanner arm seat 3 is provided with a pressing ring spanner torsion bar 8 and is fastened and limited by a set screw 12; one end of the torsion bar 8 of the clamping ring spanner is a conical head, and the other end is a flat head, and the clamping ring spanner is used for disassembling and assembling the clamping rings 14 with different clamping groove structures. The clamping groove 141 or the pinhole structure is designed on the common pressing ring 14 for disassembling the pressing ring 14, and as shown in fig. 7, one end of the torsion bar 8 of the pressing ring spanner is a conical head, and the other end is a flat head, so that the pressing ring 14 with the clamping groove 141 or the pinhole structure is suitable for disassembling.
The lens disassembling method based on the optical lens group pressing ring disassembling device provided by the invention comprises the following steps:
1) The mirror surface is protected steadily by using a mirror surface protection cover, parchment paper and the like, so that the pollution of the mirror surface is avoided;
2) The optical lens group is placed on an optical platform, the optical lens group is fixedly connected to the optical platform by using screws, and the screws are gently tightened to avoid deformation of the lens base 13 caused by excessive pretightening force;
3) The special glue removing tool is used for cleaning the glue column 15 in the screw hole of the lens group lens seat 13, so that the limit screw can be screwed in smoothly;
4) The lens group positioning sleeve 9 is sleeved into the lens seat 13, and a limit screw is arranged, so that special attention is paid to the length of the limit screw to avoid the screw from being screwed into the outer cylindrical surface of the lens 11 to be too deep so as to damage an optical piece;
5) The center positioning shaft 4 is mounted on the cross beam 91 by a screw;
6) Selecting a second spacer bush 6 with proper thickness through measurement and dimension chain calculation, and sequentially installing a first spacer bush 7, the second spacer bush 6 and a lower polytetrafluoroethylene gasket group (double gaskets) on the central positioning shaft 4;
7) Assembling a spanner component of the adjustable-distance pressing ring 14; during installation, the head of the torsion bar 8 of the clamping ring spanner is matched with the clamping groove of the clamping ring 14, and the positioning reliability of the torsion bar 8 of the clamping ring spanner through the set screw 12 is confirmed;
8) The adjustable-distance pressing ring 14 wrench is installed in the central positioning shaft 4, then a polytetrafluoroethylene gasket group (double gaskets) and a nut 5 group are installed, the nut 5 group is properly pre-tightened, the wrench is ensured to rotate flexibly, and the distance between the torsion bars 8 of the pressing ring wrenches at the two ends is adjusted;
9) After the stable installation is confirmed again, the pressing ring 14 is detached by gradually applying force to rotate the wrench;
10 Removing the lens group positioning structure and the adjustable distance pressing ring 14 spanner, manufacturing a saw-tooth glue removing tool by using a feeler gauge, cleaning glue spots between the outer cylindrical surface of the lens 11 and the inner hole of the lens seat 13, and finally removing the lens/reflecting mirror by using a special sucking disc or a special dismounting cylinder.
Claims (9)
1. An optical lens group clamping ring dismounting device which is characterized in that: comprises a lens group positioning component and a distance-adjustable spanner component;
The lens group positioning assembly comprises a central positioning shaft (4), a nut (5), a second spacer bush (6), a first spacer bush (7) and a lens group positioning sleeve (9);
the adjustable-distance spanner assembly comprises a pressing ring spanner handle (1), a pressing ring spanner straight rod (2), a plurality of groups of pressing ring spanner arm seats (3) and a plurality of groups of pressing ring spanner torsion bars (8);
a limiting device (10) is arranged on the lens group positioning sleeve (9), the limiting device (10) is a limiting screw, a limiting hole (93) is formed in the outer circumferential surface of the lens group positioning sleeve (9), and the limiting screw penetrates through the limiting hole (93) and a rubber hole on the lens seat (13) to realize circumferential limiting of the lens group positioning sleeve (9) and the lens seat (13); the upper end of the lens group positioning sleeve (9) is provided with a cross beam (91), a positioning hole (92) is designed at the position where the cross beam (91) intersects with the inner cylindrical surface axis of the lens group positioning sleeve (9), the lower end of the central positioning shaft (4) is provided with a positioning cylinder (41), the positioning cylinder (41) is in small clearance fit with the positioning hole (92) on the cross beam (91), the small clearance range is 0.02-0.05 mm, and the coaxial installation of the positioning cylinder (41) and the lens group positioning sleeve (9) is realized;
the lower end of the central positioning shaft (4) is fixedly connected with the cross beam (91), and the central positioning shaft (4) is sequentially sleeved with a first spacer bush (7), a second spacer bush (6), a pressing ring spanner straight rod (2) and a nut (5) from bottom to top; the nut (5) is in threaded connection with the center positioning shaft (4);
The pressing ring spanner comprises a central positioning shaft (4), a plurality of groups of pressing ring spanner arm seats (3), a pressing ring spanner torsion bar (8) and a pressing ring spanner, wherein one end of each pressing ring spanner arm seat (3) is slidably sleeved on the pressing ring spanner straight bar (2), the other end of each pressing ring spanner torsion bar (8) is fixedly connected with the pressing ring spanner straight bar, and the dismounting end of each pressing ring spanner torsion bar (8) is used for being matched with the pressing ring (14) so as to realize dismounting of the pressing ring (14); the clamping ring spanner handle (1) is arranged at the end part of the clamping ring spanner straight rod (2).
2. The optical lens group clamping ring dismounting device as claimed in claim 1, wherein: the disassembly end of the torsion bar (8) of the pressing ring spanner is in a flat head shape or a conical head and is used for disassembling and assembling the pressing ring (14).
3. The optical lens group clamping ring dismounting device as claimed in claim 2, wherein: a gasket group sleeved on the central positioning shaft (4) is arranged between the second spacer bush (6) and the pressing ring spanner straight rod (2) and between the pressing ring spanner straight rod (2) and the nut (5), and the gasket group comprises two polytetrafluoroethylene gaskets which are overlapped.
4. A device for removing a clamping ring of an optical lens set according to any one of claims 1 to 3, wherein: the lower extreme of center location axle (4) is provided with flange (42), center location axle (4) are through flange (42) and crossbeam (91) fixed connection.
5. The optical lens group clamping ring dismounting device as claimed in claim 4, wherein: the pressing ring spanner straight rod (2) is a straight rod with a rectangular cross section, and the pressing ring spanner arm seat (3) is assembled on the pressing ring spanner straight rod (2) through a square hole at the head of the pressing ring spanner arm seat.
6. The optical lens group clamping ring dismounting device as claimed in claim 5, wherein: the two ends of the straight rod (2) of the clamping ring spanner are provided with screw rods, and the handle (1) of the clamping ring spanner is in threaded connection with the straight rod (2) of the clamping ring spanner.
7. The optical lens set clamping ring dismounting device as claimed in claim 6, wherein: the lower extreme of clamping ring spanner arm seat (3) is provided with the cylinder hole, the fixed connection of clamping ring spanner arm seat (3) and clamping ring spanner torsion bar (8) is realized through holding screw (12) to the one end of clamping ring spanner torsion bar (8) inserts the cylinder hole.
8. A lens removing method of an optical lens group clamping ring removing device based on any one of claims 1 to 7, characterized by comprising the steps of;
1) Fixing the optical lens group on an optical platform;
2) Cleaning a rubber column in a screw hole of the lens seat, and ensuring that the limit screw can be screwed in;
3) Sleeving a lens group positioning sleeve on a lens seat, and mounting a limit screw;
4) The central positioning shaft is arranged on a cross beam of the lens group positioning sleeve;
5) Selecting a second spacer bush with matched thickness, and sequentially installing the first spacer bush, the second spacer bush and the gasket group on the central positioning shaft;
6) Assembling a distance-adjustable wrench assembly;
7) The adjustable-distance spanner assembly is arranged in the central positioning shaft, a gasket group and a nut are arranged in the central positioning shaft, the nut is pre-tightened, the adjustable-distance spanner assembly is ensured to rotate flexibly, and the distance between torsion bars of the pressing ring spanner at two ends is adjusted;
8) The straight rod of the pressing ring spanner is rotated by gradually applying force, and the pressing ring is disassembled;
9) And removing the lens group positioning assembly and the adjustable-distance wrench assembly, cleaning the adhesive spots between the outer cylindrical surface of the lens and the inner hole of the lens seat, and finally disassembling the lens by using a sucking disc or a disassembling cylinder.
9. The method for removing lenses according to claim 8, further comprising a protecting step before the step 1): the mirror surface is protected by using the mirror surface protection cover and the parchment paper, so that the pollution of the mirror surface is avoided.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344559.9A CN109940554B (en) | 2019-04-26 | 2019-04-26 | Optical lens group clamping ring dismounting device and lens dismounting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344559.9A CN109940554B (en) | 2019-04-26 | 2019-04-26 | Optical lens group clamping ring dismounting device and lens dismounting method |
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| Publication Number | Publication Date |
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| CN109940554A CN109940554A (en) | 2019-06-28 |
| CN109940554B true CN109940554B (en) | 2024-05-03 |
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| CN201910344559.9A Active CN109940554B (en) | 2019-04-26 | 2019-04-26 | Optical lens group clamping ring dismounting device and lens dismounting method |
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| CN110757135A (en) * | 2019-11-01 | 2020-02-07 | 宁波傲视智绘光电科技有限公司 | Dismounting tool |
| CN110757406B (en) * | 2019-11-06 | 2021-03-30 | 济南和普威视光电技术有限公司 | Lens clamping ring fastening and dismounting device |
| CN111730545B (en) * | 2020-06-23 | 2024-01-05 | 中国科学院西安光学精密机械研究所 | Adjustable clamping ring moment fastening device and method |
| CN112285862A (en) * | 2020-11-23 | 2021-01-29 | 中国工程物理研究院应用电子学研究所 | Universal optical lens bracket and using method thereof |
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| CN113263465A (en) * | 2021-06-02 | 2021-08-17 | 中科院南京耐尔思光电仪器有限公司 | Adjustable wrench for dismantling lens group pressing ring |
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