CN114153046B - Centering adjustment tool for meniscus lens - Google Patents
Centering adjustment tool for meniscus lens Download PDFInfo
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- CN114153046B CN114153046B CN202210120126.7A CN202210120126A CN114153046B CN 114153046 B CN114153046 B CN 114153046B CN 202210120126 A CN202210120126 A CN 202210120126A CN 114153046 B CN114153046 B CN 114153046B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
Abstract
The invention discloses a centering and adjusting tool for a meniscus lens, which comprises a clamping sleeve, a cartridge holder body matched with the spherical surface of the clamping sleeve, a guide shaft sleeve positioned in the cartridge holder body, a cartridge holder combination fixed in the guide shaft sleeve and used for clamping a lens seat, and a radial adjusting seat sleeved outside the guide shaft sleeve; the device also comprises a two-dimensional inclination adjusting mechanism, a two-dimensional radial translation adjusting mechanism, a one-dimensional axial adjusting mechanism and a tightening mechanism; the one-dimensional axial adjusting mechanism is used for adjusting the axial position of the cartridge clip combination relative to the guide shaft sleeve and the axial position of the guide shaft sleeve relative to the radial adjusting seat; the two-dimensional radial translation adjusting mechanism is used for adjusting the radial movement of the radial adjusting seat relative to the elastic clamp body along the radial direction; the two-dimensional inclination adjusting mechanism is used for adjusting the inclination of the cartridge clip body relative to the axis; the tightening mechanism limits the cartridge clip combination at the corresponding position in the guide shaft sleeve. The adjusting tool can realize that the first spherical center can not change when the second spherical center is obliquely adjusted to be centered after the first spherical center of the meniscus lens is centered.
Description
Technical Field
The invention relates to a centering and adjusting tool for a meniscus lens, and belongs to the technical field of installation of optical elements.
Background
Relative to various lenses, plano-convex, plano-concave, bi-convex and bi-concave shapes are well centered, but for meniscus lenses, especially for two spherical surfaces, the distance between the centers is very small, the spherical surfaces approximate to concentric circles, and manual and automatic centering adjustment is difficult.
The existing single-optical-path centering manual tool generally has two adjusting structures, the basic operation is to use one group of hand wheels to center one spherical center of a lens, and then use the other group of hand wheels to center the other spherical center, and repeated adjustment and gradual approximation are often needed.
The meniscus lens has a small distance between the two spherical centers, which reduces the adjustment sensitivity, and the tilt adjustment mechanism is not randomly associated with the two spherical centers of the lens.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a centering and adjusting tool which can not change a first spherical center when a second spherical center is obliquely adjusted to center after the first spherical center of a meniscus lens is centered.
The technical scheme is as follows: the centering and adjusting tool for the meniscus lens comprises a clamping sleeve, a clip body matched with the spherical surface of the clamping sleeve, a guide shaft sleeve positioned in the clip body, a clip combination fixed in the guide shaft sleeve and used for clamping a lens seat, and a radial adjusting seat sleeved outside the guide shaft sleeve; the device also comprises a two-dimensional inclination adjusting mechanism, a two-dimensional radial translation adjusting mechanism, a one-dimensional axial adjusting mechanism and a tightening mechanism; the one-dimensional axial adjusting mechanism is used for adjusting the guide shaft sleeve to move relative to the radial adjusting seat along the axial direction; the two-dimensional radial translation adjusting mechanism is used for adjusting the radial adjusting seat to move relative to the elastic clamp body along the radial direction; the two-dimensional inclination adjusting mechanism is used for adjusting the inclination of the cartridge clip body relative to the axis; the tightening mechanism limits the cartridge clip combination at the corresponding position in the guide shaft sleeve.
The clamping sleeve is provided with an internal thread at the end part of one side far away from the elastic clamp body, and the clamping sleeve is connected with the external flange platform in a matched mode through the internal thread and the external thread.
The contact surface of the jacket and the clip body is a convex spherical surface, the contact position of the clip body and the jacket is a concave spherical surface, and the contact position of the clip body and the jacket is in convex-concave fit to form a spherical belt; the sphere center O of the spherical belt is positioned on the main axis of the tool.
The one-dimensional axial adjusting mechanism comprises a micro-motion hand wheel and a guide mechanism; the fine motion hand wheel is matched and connected with the guide shaft sleeve through internal and external threads, a hand wheel limiting seat is further arranged outside the fine motion hand wheel, and an annular boss is arranged on the radial adjusting seat; the two sides of the fine motion hand wheel are limited by the hand wheel limiting seat and the annular boss, the fine motion hand wheel rotates, and the guide shaft sleeve moves axially relative to the radial adjusting seat.
Wherein, guiding mechanism is: the elastic clamp is provided with a threaded through hole I, a threaded through hole II corresponding to the threaded through hole I is formed in the radial adjusting seat, a strip-shaped groove hole is formed in the position, corresponding to the threaded through hole II, of the guide shaft sleeve, an external bolt sequentially penetrates through the threaded through hole I and the threaded through hole II and is screwed into the strip-shaped groove hole, when the guide shaft sleeve moves axially relative to the radial adjusting seat, the bolt extending into the strip-shaped groove hole slides axially along the strip-shaped groove hole, and therefore the guide shaft sleeve does not deviate when moving axially relative to the radial adjusting seat.
The two-dimensional radial translation adjusting mechanism comprises a plurality of hand wheels I which are uniformly and symmetrically distributed on the outer circumference of the clip body; the hand wheel I comprises a handle and a screw rod with external threads, a plurality of internal thread through holes I which are arranged in one-to-one correspondence with the hand wheel I are formed in the cartridge clip body, the screw rod of the hand wheel I is screwed into the internal thread through holes I, and the end part of the screw rod is propped against the corresponding notch I on the radial adjusting seat. The notch I on the radial adjustment seat and the notch II on the concave body are both provided with inclined planes, so that the rotating force of the hand wheel is converted into forward thrust on one hand, and more importantly, when the hand wheel on one side is screwed, the hand wheel screw on one side which is arranged oppositely has a movable space.
The elastic clamp comprises a clamping sleeve and a spring clamp body, wherein the clamping sleeve further comprises a concave surface body positioned in the clamping sleeve, and the concave surface body is fixedly connected with the spring clamp body through a bolt.
The two-dimensional inclination adjusting mechanism comprises a plurality of hand wheels II which are uniformly and symmetrically distributed on the outer circumference of the jacket; hand wheel II includes handle and the screw rod of outband screw thread, presss from both sides to be equipped with a plurality ofly and the internal thread through-hole II that hand wheel II one-to-one set up on the cover, and hand wheel II screw rod twists internal thread through-hole II, and the tip top of screw rod is in the notch II that corresponds on the concave body.
The tightening mechanism comprises a gear ring sleeved outside the end part of the internal thread of the clamping sleeve, a sleeve in transmission connection with the gear ring, a tightening rod positioned in the sleeve and rotating together with the sleeve, and a tightening nut for fixing the end part of the tightening rod, wherein the tightening rod sequentially penetrates through hollow cavities of the clamping sleeve and the concave surface body to extend into the cartridge clip body and is mutually matched and connected with the cartridge clip combination in the cartridge clip body through the internal thread and the external thread.
The clamping sleeve is characterized in that the gear ring is an annular cavity, an annular dentate protrusion I is arranged at the inner ring of the lower edge of the gear ring, an arc-shaped through hole is formed in the lower edge of the gear ring at the end part of the clamping sleeve, and the dentate protrusion I extends into the arc-shaped through hole; the sleeve is also in an annular cavity, and an annular dentate bulge II is arranged at the outer ring of the sleeve; the tooth-shaped protrusion I of the gear ring and the tooth-shaped protrusion II of the sleeve are mutually meshed with the gear, and the gear is fixed in the jacket through a bearing; the gear ring is rotated, the gear ring rotates relative to the jacket, and the sleeve is driven to rotate through the gear.
The tightening rod comprises a first horizontal end and a rod part, the outer diameter of the rod part of the tightening rod is smaller than the inner diameter of the sleeve, the size of the first horizontal end is larger than the diameter of the rod part, the shape of the opening at the end part of the sleeve is matched with the shape of the first horizontal end of the tightening rod, and the first horizontal end of the tightening rod is embedded in the opening at the end part of the sleeve (the shape of the opening at the end part of the sleeve is slightly larger than the size of the first horizontal end of the tightening rod, so that the first horizontal end of the tightening rod can slightly move radially at the opening).
The locking hand wheel and the hand wheel limiting seat are mutually matched and connected through internal and external threads; the pressing ring is connected with the guide shaft sleeve in a matched mode through internal threads and external threads.
The cartridge clip assembly comprises a cartridge clip I, a clip pipe sleeved outside the cartridge clip I and a cartridge clip II sleeved outside the clip pipe.
The five-dimensional tooling SR =140mm, and the inclination angle of an inclined hand wheel rotates 1/4 circles and changes by 0.5 × 0.25/140= 3'; 0.5 × 0.25/40=10', and the process of centering and adjusting the optical axis of the lens by the tool provided by the invention comprises the following steps:
(1) calibration before operation: firstly, adjusting the optical axis of the auto-collimation microscope to be coaxial with a machine tool rotating main shaft, wherein the tool is installed on the machine tool main shaft and does not clamp a workpiece;
(2) a set of transparent reflector base with a cross line dividing surface and the size of phi 30mm is made, the reflector base is clamped on the cartridge clip combination, the cartridge clip combination moves axially into the guide shaft sleeve, and the shuttle-shaped cartridge clip (cartridge clip II) and the pressing ring are fixed in the guide shaft sleeve; moving a reticle scribing surface (namely the upper surface of a microscope base) to be near the SR140 spherical center, emitting parallel light by the auto-collimation microscope at the moment, and enabling the axis of the tool to be parallel to the optical axis of the auto-collimation microscope through two-dimensional inclination correction of the tool and the auto-collimation microscope;
(3) adjusting an objective lens of the auto-collimation microscope to change the emergent parallel light into convergent light, focusing a cross dividing plane by the auto-collimation microscope, and enabling a cross dividing center to coincide with an optical axis of the auto-collimation microscope through a two-dimensional radial translation adjusting mechanism (a radial hand wheel) (the process is centering and eccentric);
(4) focusing a cross line image clearly by using an axial micro-motion hand wheel of the tool, looking at the displacement of the cross line image by adjusting an inclined hand wheel, moving the cross line image to the right for focusing in the same direction, moving the cross line image to the left for focusing in the opposite direction, and simultaneously performing corresponding compensation focusing by using an autocollimator until the cross line image is fixed and clear during inclination adjustment; at the moment, the auto-collimation microscope is focused on the SR140 sphere center, Z-axis data of the auto-collimation microscope return to zero, namely the microscope focus is positioned on the SR140 sphere center and used as a Z-axis zero point;
(5) centering the lens to be measured: taking down the reticle dividing lens base, replacing the reticle dividing lens base with the lens to be measured, and enabling the spherical center R1 of the lens to coincide with the spherical center SR140 (at the moment, the focal point of the auto-collimation microscope and the spherical center R1 of the lens coincide with the spherical center SR 140) through three-dimensional translation (two-dimensional radial direction and one-dimensional axial direction): firstly, axially translating and adjusting a coarse adjusting mechanism and a fine adjusting mechanism to enable a spherical center image (a cross image reflected by a lens spherical center R1 by an autocollimator is clear) to be clear, and then radially translating and adjusting to enable a cross line to be centered; the final two-dimensional tilt adjusts the second sphere center R2 to the major axis: and moving the lens center distance K of the auto-collimation microscope along the Z-axis direction, namely focusing a second center point, and performing two-dimensional inclination adjustment to center the cross line. The two-dimensional inclination and the two-dimensional translation are both carried out under the rotation state of the rotating main shaft of the machine tool.
The centering operation of the adjusting tool provided by the invention comprises the following steps: the two-dimensional inclination adjusting mechanism body in the five-dimensional tool is a sector sphere with a sphere center O positioned on the main axis X1X2 of the tool; after the lens seat is clamped, the first spherical center C1 of the lens is firstly superposed with the sector spherical center O through three-dimensional translation (one-dimensional axial direction and two-dimensional radial direction), and then the second spherical center of the lens is adjusted to the main axis X1X2 through two-dimensional inclination, so that the centering target is completed. Since C1 is overlapped with O, C1 will not change when C2 is adjusted in two-dimensional tilt, and one-time adjustment is realized.
Has the advantages that: the adjusting tool can realize five-dimensional structure adjustment, and the first spherical center of the lens to be measured is coincident with the spherical center of the tool spherical belt (coincident with the spherical center O of the spherical belt) through axial displacement adjustment, so that the first spherical center is unchanged and is in place at one time without repeated adjustment when the second spherical center of the lens is adjusted.
Drawings
Fig. 1 is a structural view of the external shape of the centering adjustment tool of the present invention;
FIG. 2 is a cross-sectional view taken through a two-dimensional tilt adjustment structure;
FIG. 3 is a cross-sectional view taken through a two-dimensional radial adjustment structure;
fig. 4 is a schematic diagram illustrating the alignment of the centering alignment fixture according to the present invention;
FIG. 5 is a schematic view of the connection structure of the cartridge clip I, the clip tube and the cartridge clip II;
FIG. 6 is a side view of the clip assembly;
FIG. 7 is a schematic view of the connection between a fine motion handwheel and a handwheel limit seat;
FIG. 8 is a schematic view of the structure of a jacket;
FIG. 9 is a schematic view of a ring gear configuration;
FIG. 10 is a schematic view of the construction of the tightening rod;
FIG. 11 is a schematic structural diagram I of the bushing;
FIG. 12 is a schematic structural view II of the bushing;
FIG. 13 is a schematic view of pre-alignment before tooling alignment;
fig. 14 is an image of a cross-hatched line after centering adjustment;
fig. 15 is a schematic diagram of a lens centering adjustment process.
Detailed Description
As shown in fig. 1 to 12, the meniscus lens centering adjustment fixture of the present invention includes a clamping sleeve 15, a clip body 7 spherically fitted with the clamping sleeve 15, a guide shaft sleeve 4 located in the clip body 7, a clip assembly fixed in the guide shaft sleeve 4 for clamping a lens holder, and a radial adjustment seat 5 sleeved outside the guide shaft sleeve 4; a concave surface 9 is also arranged in the jacket 15, and the concave surface 9 is fixedly connected with the clip body 7 through a bolt; the meniscus lens centering adjustment tool further comprises a two-dimensional inclination adjusting mechanism, a two-dimensional radial translation adjusting mechanism, a one-dimensional axial adjusting mechanism and a tightening mechanism; the one-dimensional axial adjusting mechanism can preliminarily adjust the depth of the cartridge clip combination extending into the guide shaft sleeve 4 on one hand, and can finely adjust the axial position of the guide shaft sleeve 4 relative to the radial adjusting seat 5 on the other hand; the two-dimensional radial translation adjusting mechanism is used for adjusting the radial movement of the radial adjusting seat 5 relative to the elastic clamp body 7 along the radial direction; the two-dimensional inclination adjusting mechanism is used for adjusting the inclination of the cartridge clip body 7 relative to the main axis of the tool; the tightening mechanism limits the clip combination at the corresponding position in the guide shaft sleeve 4.
The end part of one side of the jacket 15, which is far away from the clip body 7, is provided with internal threads, and the jacket 15 and an external flange platform are mutually matched and connected through the internal threads and the external threads; the jacket 15 is connected to the machine tool by means of an external flange table jacket 15. The contact surface of the clip body 7 is a convex spherical surface, the contact part of the clip body 7 and the jacket 15 is a concave spherical surface, and the contact part of the clip body and the jacket is convexly and concavely matched to form a spherical belt; the center O of the ball belt is located on the tooling principal axis X1X 2.
The meniscus lens centering and adjusting tool further comprises a locking hand wheel 1 and a pressing ring 11, wherein the locking hand wheel 1 is connected with a hand wheel limiting seat 2 in a matched manner through internal and external threads; through the rotation of the fine motion hand wheel 3, the lens seat and the guide shaft sleeve 4 are subjected to axial precise fine motion adjustment, and the lens seat is locked in the tool by the locking hand wheel 1 after being adjusted in place. The pressing ring 11 is matched and connected with the guide shaft sleeve 4 through internal and external threads. The two-dimensional radial translation adjusting mechanism is used for carrying out two-dimensional translation adjustment along the direction vertical to the main axis of the tool, and after the adjustment is in place, the pressing ring 11 and the guide shaft sleeve 4 are mutually matched and connected through internal and external threads to realize locking (the lens base is fixedly connected with the guide shaft sleeve).
The cartridge clip combination comprises a cartridge clip I12, a clip tube 13 sleeved outside the cartridge clip I12 and a cartridge clip II19 sleeved outside the clip tube 13. The one-dimensional axial adjusting mechanism comprises a coarse adjusting mechanism: the cartridge clip combination clamps the lens base, axially moves into the guide shaft sleeve 4 through a clip tube 13 with a scribing line, and is fixed in the guide shaft sleeve 4 through a shuttle-shaped cartridge clip (cartridge clip II) 19 and a pressing ring 11; the one-dimensional axial adjusting mechanism also comprises a fine adjusting mechanism which consists of a fine moving hand wheel 3 and a guide mechanism; the fine motion hand wheel 3 is connected with the guide shaft sleeve 4 through the mutual matching of internal and external threads, a hand wheel limiting seat 2 is also arranged outside the fine motion hand wheel 3, and an annular boss 51 is arranged on the radial adjusting seat 5; the two sides of the fine motion hand wheel 3 are limited by the hand wheel limiting seat 2 and the annular boss 51, so that the axial movement of the fine motion hand wheel 3 is limited, the fine motion hand wheel 3 rotates, and the guide shaft sleeve 4 moves axially relative to the radial adjusting seat 5; the guide mechanism is characterized in that a threaded through hole I71 is formed in the clip body 7, a threaded through hole II52 corresponding to the threaded through hole I71 is formed in the radial adjusting seat 5, a strip-shaped groove hole 41 is formed in the position, corresponding to the threaded through hole II52, of the guide shaft sleeve 4, an external bolt sequentially penetrates through the threaded through hole I71 and the threaded through hole II52 and is screwed into the strip-shaped groove hole 41, when the guide shaft sleeve 4 moves axially relative to the radial adjusting seat 5, the bolt extending into the strip-shaped groove hole 41 slides axially along the strip-shaped groove hole 41, and the guide shaft sleeve 4 does not deviate when moving axially relative to the radial adjusting seat 5. The lens seat and the guide shaft sleeve 4 are precisely adjusted in an axial fine micro-motion manner by rotating the micro-motion hand wheel 3, and are locked by the locking hand wheel 1 after being adjusted in place.
The two-dimensional radial translation adjusting mechanism comprises a plurality of handwheels I6, and a plurality of handwheels I6 are uniformly and symmetrically distributed on the outer circumference of the clip body 7; the hand wheel I6 comprises a handle and a screw with external threads, a plurality of internal thread through holes I72 which are arranged corresponding to the hand wheel I6 one by one are arranged on the clip body 7, the screw of the hand wheel I6 is screwed into the internal thread through hole I72, and the end part of the screw is propped in a corresponding notch I53 on the radial adjusting seat 5.
The two-dimensional inclination adjusting mechanism comprises a plurality of handwheels II10, and a plurality of handwheels II10 are uniformly and symmetrically distributed on the outer circumference of the jacket 15; the hand wheel II10 includes the handle and takes the threaded rod of external screw thread, is equipped with a plurality of internal thread through-holes II151 that set up with hand wheel II10 one-to-one on the clamp cover 15, and hand wheel II10 screw rod is twisted in internal thread through-hole II151, and the tip of screw rod pushes up in the notch II91 that corresponds on concave body 9.
The tightening mechanism comprises a gear ring 18, a sleeve 17, a tightening rod 16 and a tightening nut 14, wherein the gear ring 18 is sleeved outside the end part of an internal thread of the clamping sleeve 15, the sleeve 17 is in transmission connection with the gear ring 18, the tightening rod 16 is positioned in the sleeve 17 and rotates together with the sleeve 17, the end part of the tightening rod 16 is fixed in a notch 141 at the end part of the tightening nut 14, the connection part of the tightening rod 16 and the tightening nut is locked by an annular cover plate 142, the tightening rod 16 and the tightening nut 14 can slightly move radially in the notch 141 relative to the tightening nut 14 when being connected into a whole, the tightening rod 16 sequentially penetrates through hollow cavities of the clamping sleeve 15 and the concave surface 9 and extends into the cartridge clip body 7, and the cartridge clip combination in the cartridge clip body 7 is mutually matched and connected through the internal thread and the external thread. The tightening nut 14 is fixedly connected with the cartridge clip I12 and the clip pipe 13 through the mutual matching of internal threads and external threads.
The gear ring 18 is an annular cavity, an annular dentate protrusion I181 is arranged at the inner ring of the lower edge of the gear ring 18, an arc-shaped through hole 152 is arranged at the lower edge of the gear ring 18 at the end part of the jacket 15, and the dentate protrusion I181 extends into the arc-shaped through hole 152; the sleeve 17 is also in an annular cavity, and an annular dentate protrusion II171 is arranged at the outer ring of the lower edge of the sleeve; the tooth-shaped protrusion I181 of the gear ring 18 and the tooth-shaped protrusion II171 of the sleeve 17 are meshed with the gear 20, and the gear 20 is fixed in the jacket 15 through a bearing; the gear ring 18 is rotated, the gear ring 18 rotates relative to the jacket 15, and the sleeve 17 is driven to rotate through the gear 20. Tightening rod 16 comprises a first horizontal end 161, a rod part 162 and a second horizontal end 163, and first horizontal end 161 and second horizontal end 163 are arranged perpendicular to each other; the outer diameter of the rod part 162 of the tightening rod 16 is smaller than the inner diameter of the sleeve 17, the first horizontal end 161 and the second horizontal end 163 are both rectangular, the end opening shape 172 of the sleeve 17 is matched with the shape of the first horizontal end 161 of the tightening rod 16, and the size of the first horizontal end 161 of the tightening rod 16 is slightly smaller than the size of the end opening shape 172 of the sleeve 17, so that the first horizontal end 161 can slightly move radially relative to the end opening 172 of the sleeve 17.
As shown in fig. 13 to 15, the process of centering and adjusting the optical axis of the lens by the tool of the present invention includes:
(1) calibration before operation: firstly, adjusting the optical axis of the auto-collimation microscope to be coaxial with a machine tool rotating main shaft, wherein the tool is installed on the machine tool main shaft at the moment, but a lens seat is not clamped on the tool;
(2) a set of transparent reflector base with a cross line dividing surface and the size of phi 30mm is made, the reflector base is clamped on the cartridge clip combination, the cartridge clip combination axially moves towards the inside of the guide shaft sleeve 4, and the reflector base is fixed in the guide shaft sleeve 4 through a shuttle-shaped cartridge clip (cartridge clip II) 19 and a pressing ring 11; moving a reticle scribing surface (namely the upper surface of a microscope base) to be near the SR140 spherical center, emitting parallel light by the auto-collimation microscope at the moment, and enabling the axis of the tool to be parallel to the optical axis of the auto-collimation microscope through the inclination correction of a two-dimensional inclination adjusting mechanism of the tool;
(3) adjusting an objective lens of the auto-collimation microscope to change the emergent parallel light into convergent light, focusing a reticle dividing plane by the auto-collimation microscope, and translating the axis of the guide shaft sleeve 4 through a two-dimensional radial translation adjusting mechanism (a radial hand wheel) to be superposed with the optical axis of the auto-collimation microscope (the process is eccentric centering);
(4) focusing by using an axial micro-motion hand wheel 3 of the tool to enable a cross line image of the cross division line to be clear, looking at the displacement of the cross line image by adjusting an inclined hand wheel 10, moving the cross line image to the right along an axis in the same direction for focusing, moving the cross line image to the left along the axis in the opposite direction for focusing, and simultaneously carrying out corresponding compensation focusing on an auto-collimation microscope until the cross line image is fixed and clear during inclination adjustment; at the moment, the auto-collimation microscope is focused on the SR140 sphere center, Z-axis data of the auto-collimation microscope return to zero, namely the microscope focus is positioned on the SR140 sphere center and used as a Z-axis zero point;
(5) centering the lens to be measured: taking down the reticle dividing lens base, replacing the reticle dividing lens base with the lens to be measured, and enabling the spherical center R1 of the lens to coincide with the spherical center SR140 (at the moment, the focal point of the auto-collimation microscope and the spherical center R1 of the lens coincide with the spherical center SR 140) through three-dimensional translation (two-dimensional radial direction and one-dimensional axial direction): firstly, axially translating and adjusting a coarse adjusting mechanism and a fine adjusting mechanism to enable a spherical center image (a cross image reflected by a lens spherical center R1 by an autocollimator is clear) to be clear, and then radially translating and adjusting to enable a cross line to be centered; the final two-dimensional tilt adjusts the second sphere center R2 to the major axis: the autocollimation microscope is moved by the lens centre distance K along the Z-axis direction (axial direction), namely the autocollimation microscope focuses on the second centre point, and the two-dimensional inclination adjustment enables the cross line (the cross image of the autocollimation lens reflected by the lens centre R2) to be centered. The two-dimensional inclination and the two-dimensional translation are both carried out under the rotation state of the rotating main shaft of the machine tool.
The tool firstly adjusts the coincidence of the spherical center of the lens R1 and the spherical center of the tool spherical belt as an axis zero point, then determines the axis position of each mirror image point of the lens, and finally realizes the centering of the lens through the inclined movement. The tool can be adjusted interactively by adding one-dimensional axial adjustment, the five-dimensional tool SR =140mm, and the inclination angle of an inclined hand wheel rotates 1/4 circles and changes by 0.5 × 0.25/140= 3'; 0.5 × 0.25/40=10', has large transmission magnification and high adjustment sensitivity, is most suitable for centering and turning edges of the meniscus lens, and can be adjusted and positioned at one time by the SR0-50mm convex lens.
Claims (12)
1. The utility model provides a meniscus lens is timing frock which characterized in that: comprises a jacket (15), a clip body (7) which is matched with the spherical surface of the jacket (15), a guide shaft sleeve (4) which is positioned in the clip body (7), a clip combination which is fixed in the guide shaft sleeve (4) and is used for clamping a lens holder, and a radial adjusting seat (5) which is sleeved outside the guide shaft sleeve (4); the device also comprises a two-dimensional inclination adjusting mechanism, a two-dimensional radial translation adjusting mechanism, a one-dimensional axial adjusting mechanism and a tightening mechanism; the one-dimensional axial adjusting mechanism is used for adjusting the axial position of the cartridge clip combination relative to the guide shaft sleeve (4) and the axial position of the guide shaft sleeve (4) relative to the radial adjusting seat (5); the two-dimensional radial translation adjusting mechanism is used for adjusting the radial movement of the radial adjusting seat (5) relative to the elastic clamp body (7) along the radial direction; the two-dimensional inclination adjusting mechanism is used for adjusting the inclination of the clip body (7) relative to the axis; the tightening mechanism limits the cartridge clip combination at a corresponding position in the guide shaft sleeve (4); the contact surface of the jacket (15) and the clip body (7) is a convex spherical surface, the contact position of the clip body (7) and the jacket (15) is a concave spherical surface, and the contact position of the two is convexly and concavely matched to form a spherical belt; the sphere center O of the spherical belt is positioned on the main axis of the tool.
2. The meniscus lens centering adjustment tool according to claim 1, wherein: the clamping sleeve (15) is provided with internal threads at the end part of one side far away from the elastic clamping body (7), and the clamping sleeve (15) is connected with an external flange platform in a matched mode through the internal threads and the external threads.
3. The meniscus lens centering adjustment tool according to claim 1, wherein: the one-dimensional axial adjusting mechanism comprises a micro hand wheel (3) and a guide mechanism; the fine motion hand wheel (3) is matched and connected with the guide shaft sleeve (4) through internal and external threads, a hand wheel limiting seat (2) is further arranged outside the fine motion hand wheel (3), and an annular boss (51) is arranged on the radial adjusting seat (5); two sides of the fine motion hand wheel (3) are limited by the hand wheel limiting seat (2) and the annular boss (51), the fine motion hand wheel (3) rotates, and the guide shaft sleeve (4) moves along the axial direction relative to the radial adjusting seat (5).
4. The meniscus lens centering adjustment tool according to claim 3, wherein: the guiding mechanism is as follows: be equipped with screw thread through-hole I (71) on the clip body (7), be equipped with on radial adjustment seat (5) with the corresponding screw thread through-hole II (52) of screw thread through-hole I (71), guide sleeve (4) are equipped with slotted hole (41) in screw thread through-hole II (52) corresponding position department, outside bolt passes screw thread through-hole I (71) in proper order, screw thread through-hole II (52) are twisted in slotted hole (41), when relative radial adjustment seat (5) of guide sleeve (4) are along axial displacement, the bolt that stretches into slotted hole (41) is along slotted hole (41) axial slip.
5. The meniscus lens centering adjustment tool according to claim 1, wherein: the two-dimensional radial translation adjusting mechanism comprises a plurality of hand wheels I (6), and the hand wheels I (6) are uniformly and symmetrically distributed on the outer circumference of the clip body (7); the hand wheel I (6) comprises a handle and a screw rod with external threads, a plurality of internal thread through holes I (72) which are arranged in one-to-one correspondence with the hand wheel I (6) are formed in the clip body (7), the screw rod of the hand wheel I (6) is screwed into the internal thread through holes I (72), and the end part of the screw rod is propped in a corresponding notch I (53) on the radial adjusting seat (5).
6. The meniscus lens centering adjustment tool according to claim 1, wherein: the clamping device also comprises a concave body (9) positioned in the jacket (15), and the concave body (9) is fixedly connected with the clip body (7).
7. The meniscus lens centering adjustment tool according to claim 6, wherein: the two-dimensional inclination adjusting mechanism comprises a plurality of hand wheels II (10), and the hand wheels II (10) are uniformly and symmetrically distributed on the outer circumference of the jacket (15); hand wheel II (10) are equipped with a plurality of internal thread through-holes II (151) that set up with hand wheel II (10) one-to-one including handle and the screw rod of outband screw thread on pressing from both sides cover (15), and hand wheel II (10) screw rod is twisted in internal thread through-hole II (151), and the tip top of screw rod is in notch II (91) that corresponds on concave body (9).
8. The meniscus lens centering adjustment tool according to claim 1, wherein: the tightening mechanism comprises a gear ring (18) sleeved outside the end part with the internal thread of the clamping sleeve (15), a sleeve (17) in transmission connection with the gear ring (18), a tightening rod (16) located in the sleeve (17) and rotating together with the sleeve (17), and a tightening nut (14) for fixing the end part of the tightening rod (16), wherein the tightening nut (14) sequentially penetrates through hollow cavities of the clamping sleeve (15) and the concave cavity (9) to extend into the elastic clamp body (7), and is mutually matched and connected with an elastic clamp combination in the elastic clamp body (7) through internal and external threads.
9. The centering and adjusting tool for the meniscus lens according to claim 8, wherein: the gear ring (18) is an annular cavity, an annular dentate protrusion I (181) is arranged at the inner ring of the lower edge of the gear ring, an arc-shaped through hole (152) is arranged at the lower edge of the gear ring (18) at the end part of the jacket (15), and the dentate protrusion I (181) extends into the arc-shaped through hole (152); the sleeve (17) is also in an annular cavity, and an annular dentate protrusion II (171) is arranged at the outer ring of the sleeve; the tooth-shaped protrusion I (181) of the gear ring (18) and the tooth-shaped protrusion II (171) of the sleeve (17) are mutually meshed with the gear (20), and the gear (20) is fixed in the jacket (15) through a bearing; the gear ring (18) is rotated, the gear ring (18) rotates relative to the jacket (15), and the sleeve (17) is driven to rotate through the gear (20).
10. The meniscus lens centering adjustment tool according to claim 8, wherein: the tightening rod (16) comprises a first horizontal end (161) and a rod portion (162), the outer diameter of the rod portion (162) of the tightening rod (16) is smaller than the inner diameter of the sleeve (17), the size of the first horizontal end (161) is larger than the diameter of the rod portion (162), the opening shape of the end portion of the sleeve (17) is matched with the shape of the first horizontal end (161) of the tightening rod (16), and the first horizontal end (161) of the tightening rod (16) is embedded in the opening of the end portion of the sleeve (17).
11. The meniscus lens centering adjustment tool according to claim 1, wherein: the locking mechanism further comprises a locking hand wheel (1) and a pressing ring (11), wherein the locking hand wheel (1) is connected with the hand wheel limiting seat (2) in a matched manner through internal and external threads; the pressing ring (11) is matched and connected with the guide shaft sleeve (4) through internal and external threads.
12. The meniscus lens centering adjustment tool according to claim 1, wherein: the cartridge clip assembly comprises a cartridge clip I (12), a clip pipe (13) sleeved outside the cartridge clip I (12) and a cartridge clip II (19) sleeved outside the clip pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210120126.7A CN114153046B (en) | 2022-02-09 | 2022-02-09 | Centering adjustment tool for meniscus lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210120126.7A CN114153046B (en) | 2022-02-09 | 2022-02-09 | Centering adjustment tool for meniscus lens |
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| CN114153046B true CN114153046B (en) | 2022-05-03 |
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| CN202210120126.7A Active CN114153046B (en) | 2022-02-09 | 2022-02-09 | Centering adjustment tool for meniscus lens |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08233686A (en) * | 1995-02-24 | 1996-09-13 | Nikon Corp | Eccentricity measuring method and measuring device of aspheric surface |
| JP3896265B2 (en) * | 2001-09-11 | 2007-03-22 | オリンパス株式会社 | Positioning jig and spray polishing apparatus using positioning jig |
| WO2011158920A1 (en) * | 2010-06-16 | 2011-12-22 | 三洋電機株式会社 | Method for testing objective lens drive device |
| CN102798954B (en) * | 2012-08-22 | 2014-11-26 | 中国科学院上海光学精密机械研究所 | Five-dimensional adjusting rack |
| CN203287603U (en) * | 2013-05-22 | 2013-11-13 | 上海微电子装备有限公司 | Spherical surface adjusting device of reflector |
| WO2015162789A1 (en) * | 2014-04-25 | 2015-10-29 | 株式会社コジマエンジニアリング | Lens-centering method for spherical center-type processing machine, lens-processing method, and spherical center-type processing machine |
| CN106383396A (en) * | 2016-10-31 | 2017-02-08 | 中国科学院西安光学精密机械研究所 | Micrometer-grade photoelectric centering method and micrometer-grade photoelectric centering device based on surface reflection image |
| CN206648613U (en) * | 2017-03-23 | 2017-11-17 | 西安昂科光电有限公司 | A kind of big lens eccentricity measurement apparatus |
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