CN115740511A - High-precision optical lens machining device and working method thereof - Google Patents
High-precision optical lens machining device and working method thereof Download PDFInfo
- Publication number
- CN115740511A CN115740511A CN202211581550.8A CN202211581550A CN115740511A CN 115740511 A CN115740511 A CN 115740511A CN 202211581550 A CN202211581550 A CN 202211581550A CN 115740511 A CN115740511 A CN 115740511A
- Authority
- CN
- China
- Prior art keywords
- axis
- rotating
- autocollimator
- optical
- base body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to a high-precision optical lens processing device which comprises a numerical control horizontal lathe, an optical alignment axis image adjusting mechanism, an autocollimator optical eccentricity measuring mechanism and an autocollimator position adjusting mechanism, wherein the optical alignment axis image adjusting mechanism, the autocollimator optical eccentricity measuring mechanism and the autocollimator position adjusting mechanism are arranged on the lathe. The optical axis position is adjusted to enable the lens group to be processed to be coaxial with the rotating shaft, and a series of work such as processing, inspection, correction and measurement are carried out on the lens base, so that the processing precision of the optical lens and the lens base is improved, the production efficiency is improved, and the imaging quality of the optical lens assembly is improved.
Description
Technical Field
The invention relates to a high-precision optical lens processing device and a working method thereof, and belongs to the technical field of centering lens group processing.
Background
In the field of optical processing systems, the performance requirements of optical systems are higher and higher, and high-precision optical systems have become key technologies in international competition in China. The center deviation is a main factor affecting the optical imaging system, and if the center deviation exists, even if the lens has the best surface shape precision, the high-precision optical imaging system cannot be realized. The traditional optical processing method mostly adopts pure mechanical adjustment, has low processing precision and processing efficiency, has larger central deviation and gradually can not meet the requirement of higher and higher optical system assembly precision. Therefore, there is a need for a high-precision optical lens processing device for optical processing, which can not only realize a series of operations such as detection, adjustment, and processing of the optical lens assembly, but also quickly mount and quickly align the eccentricity to complete the processing and detection processes, thereby solving the processing and detection problems of the optical lens assembly, realizing the high-precision requirements of various tolerances including air space, center deviation, etc. in the assembling process of the optical lens assembly, and realizing the high-quality imaging requirements of the whole optical lens assembly.
Disclosure of Invention
In view of the defects of the prior art, the technical problem to be solved by the present invention is to provide a high-precision optical lens processing device and a working method thereof.
In order to solve the technical problems, the technical scheme of the invention is as follows: a high-precision optical lens processing device comprises a numerical control horizontal lathe, an optical alignment axis image adjusting mechanism, an autocollimator optical eccentricity measuring mechanism and an autocollimator position adjusting mechanism, wherein the optical alignment axis image adjusting mechanism, the autocollimator optical eccentricity measuring mechanism and the autocollimator position adjusting mechanism are arranged on the lathe;
the autocollimator position adjusting mechanism comprises a three-dimensional moving platform capable of adjusting the position in the X-axis, Y-axis and Z-axis directions, wherein a rotating seat body for performing horizontal rotation adjustment around the Z-axis is arranged on a mounting seat body at the final execution end of the three-dimensional moving platform, and a fastener for limiting or allowing the rotating seat body to horizontally rotate is arranged on the rotating seat body;
optics to optical axis camera mechanism include the lathe connecting seat, the outer tip coaxial of lathe connecting seat has linked firmly the outer sleeve, the outer sleeve is inside to be inserted and is equipped with first inner skleeve, first inner skleeve is inside to be inserted and is equipped with the second inner skleeve, installs the frock of the mirror group that awaits measuring on the second inner skleeve, wherein: the outer spherical surface of the outer end of the second inner sleeve is contacted with the inner spherical surface of the outer end of the first inner sleeve, the outer spherical surface of the outer end of the first inner sleeve is contacted with the inner spherical surface of the outer end of the outer sleeve, a plurality of first screws and second screws are uniformly distributed on the circumference of the outer sleeve, the plurality of first screws and the plurality of second screws are arranged in a staggered mode, the first screws are all in threaded connection with the rear surface of the outer sleeve and are abutted against the non-spherical surface periphery of the first inner sleeve, and the second screws are all in threaded connection with the outer sleeve and penetrate through the abdicating through holes of the first inner sleeve and are abutted against the non-spherical surface periphery of the second inner sleeve;
the optical eccentricity measuring mechanism of the autocollimator comprises a light pipe, a light source and a CCD camera, wherein the light source and the CCD camera are connected in the light pipe;
the machine tool connecting seat of the optical axis aligning and imaging mechanism is clamped on a rotating main shaft of a lathe, a light pipe of the optical eccentricity measuring mechanism of the autocollimator is fixedly connected on a rotating seat body, and the light pipe is aligned with a lens group to be measured of the optical axis aligning and imaging mechanism.
Preferably, a movable base body is arranged below the mounting base body, a lifting base body is arranged below the movable base body, a workbench is arranged below the lifting base body, and the workbench is fixed on a lathe frame; the mounting base body is connected with the movable base body through a ball screw pair and a slide block slide rail moving pair in the Y-axis direction, the movable base body is connected with the lifting base body through a ball screw pair and a slide block slide rail moving pair in the X-axis direction, and the lifting base body is connected with the workbench through the lifting driving assembly.
Preferably, the lifting driving assembly comprises a vertical screw, the vertical screw is in threaded connection with the workbench, the top end of the vertical screw is fixedly connected with the rotary handle, the bottom end of the vertical screw is connected with the adapter plate through a bearing, the adapter plate is vertically and fixedly connected with a guide rod, and the top end of the guide rod is fixedly connected with the lifting base body after penetrating through a guide hole in the workbench.
Preferably, the rotating base body is connected with the mounting base body through a spherical hinge, and the spherical hinge is arranged at the position of a rotating Z axis of the rotating base body.
Preferably, the fastening piece is a locking screw, the locking screw passes through an abdicating notch formed on the rotary base and then is screwed on the mounting base, and a first spring is sleeved on the locking screw between the mounting base and the rotary base; the upper surface of the rotating base body is provided with a rotating plate body, the rotating plate body is provided with an arc-shaped guide groove, the circle center of the arc-shaped guide groove is positioned on a rotating Z shaft of the rotating base body, a vertical guide rod penetrates through the arc-shaped guide groove, the bottom end of the vertical guide rod is fixedly connected to the rotating base body, the top end of the vertical guide rod is in threaded connection with a limiting nut, the upper surface of the rotating base body is symmetrically and fixedly connected with differential head fixing seats on two sides of the rotating Z shaft, differential heads are respectively installed on the differential head fixing seats, the heads of the differential heads are respectively abutted against the lateral part of the rotating plate body, and a second spring which is horizontal in the axial direction is respectively connected between the lateral part and the differential head fixing seats; the upper surface of the rotating plate body is fixedly connected with a light pipe fixing seat, the light pipe fixing seat comprises a lower base and an upper hoop body, the lower base and the upper hoop body are fastened through screw connection, and a circular duct for clamping a light pipe is formed by assembling the lower base and the upper hoop body.
Preferably, the outer sleeve is in threaded connection with the outer end part of the machine tool connecting seat; the outer end of outer sleeve is the end that inserts of first inner skleeve, the outer end of first inner skleeve is the end that inserts of second inner skleeve, the outer end of second inner skleeve is that the frock of awaiting measuring mirror group inserts the end.
Preferably, the inside of the second inner muff is coaxially provided with a mounting hole of the tool, the mounting hole is coaxially and fixedly connected with an elastic jacket, the elastic jacket comprises a jacket base body, a plurality of arc-shaped clamping pieces are uniformly distributed on the circumference of the jacket base body, gaps are formed between every two adjacent clamping pieces, the outer end sides of the clamping pieces are respectively provided with an outer chamfer and are located on a locking hole at the outer end of the mounting hole, the inner diameter of the locking hole is larger than the inner diameter of the mounting hole and is provided with an inner thread, a clamping nut is screwed on the inner thread, the outer end of the clamping pieces is clamped by the outer chamfer through the inner edge of the clamping nut in an extrusion manner, a clamping rod of the tool inserted into the inside of the elastic jacket is clamped, and the outer end of the tool is the mounting position of the lens group to be tested.
Preferably, the included angle between two adjacent first screws and second screws is 45 degrees.
Preferably, the first screw and the second screw have different circumferential axial positions on the outer sleeve; the first screws are all propped against the outer peripheral part of the first inner sleeve far away from the spherical end, and the second screws are all propped against the outer peripheral part of the second inner sleeve far away from the spherical end.
A working method of a high-precision optical lens processing device comprises the following steps:
(1) Starting an autocollimator, when a light beam emitted by the electronic autocollimator is focused on the position of a curvature center through a fixed-focus objective lens, the light beam enters and is reflected along the normal direction on the surface A of a sample of the group of lenses to be measured, a reflected light cross target is imaged on a CCD plane, a cross target image is displayed on a display through computer processing, and if the cross target image cannot be displayed on the display, the cross target image is displayed on the display through adjusting an autocollimator position adjusting mechanism; the adjusting principle is as follows: the three-dimensional moving platform adjusts the position in the directions of an X axis, a Y axis and a Z axis, the rotating seat body drives the light pipe to horizontally rotate and adjust around the Z axis, wherein the rotation adjustment is divided into coarse adjustment and fine adjustment, the coarse adjustment is realized by loosening and tightening a locking screw, and the rotating seat body horizontally rotates and adjusts around the Z axis relative to the mounting seat body; fine adjustment is carried out by adjusting the differential heads at the two sides, so that the rotating plate body rotates relative to the rotating seat body to carry out horizontal rotation adjustment around a Z axis;
(2) Then, a spindle of a rotary lathe is used for measuring the central deviation of the surface A of the sample, the cross target image forms a circle on a CCD plane, the central deviation value of the surface A of the sample is calculated through the eccentricity of a computer, and if the eccentricity value is within the designed value range, adjustment is not needed; if the eccentricity value is out of the designed value range, adjusting the optical axis image adjusting mechanism by adjusting the optics until the eccentricity value of the A surface of the sample is in the designed value range, wherein the adjusting principle is as follows: the leaning posture of the first inner sleeve relative to the outer sleeve is changed by respectively adjusting the butting degree of the first screws, and then the butting degree of the second screws is further respectively adjusted on the basis of the posture of the first inner sleeve to change the leaning posture of the second inner sleeve relative to the first inner sleeve;
(3) After the adjustment of the surface A of the sample is finished, the position of an autocollimator is changed, light beams emitted by the autocollimator are incident and reflected along the normal direction on the surface B of the sample, a reflected light cross target is also imaged on a CCD plane, the eccentricity value of the surface B is also adjusted within a design value range in the same step of the surface A adjustment, the optical axis of the lens is coaxial with a lathe rotating main shaft at the moment, and finally a numerical control horizontal lathe turns the lens base of the lens group according to the design value, wherein the lens base comprises an outer circle and front and rear end faces, the structural size of the lens base of the lens group is guaranteed, the mechanical axis of the lens base is changed, and the optical axis of the lens assembly is coaxial with the outer circle of the lens base.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention makes the lens group to be processed and the rotating shaft coaxial by adjusting the position of the optical focusing axis, improves the processing precision of the optical lens and the lens base and improves the production efficiency by a series of work of processing, checking, correcting, measuring and the like of the lens base, thereby providing the imaging quality of the optical lens assembly.
2. The autocollimator optical eccentricity measuring mechanism transmits detected data to a computer for processing, adjusts an optical pair axis according to central deviation after judging a reflected image position so that the optical axis of a lens is coaxial with a lathe rotating shaft, controls a horizontal lathe tool to turn the outer circle of a lens base and the front and rear end faces so that a lens group to be processed does not have central deviation, realizes that the optical pair axis adjusting lens group optical axis is coaxial with a rotating main shaft, and turns the outer circle of the lens base and the front and rear end faces so as to ensure the structural size of the lens group.
3. The autocollimator position adjusting mechanism has a plurality of adjusting directions. The three-dimensional mobile platform can carry out position control in X axle, Y axle, Z axle direction, is provided with the rotatory pedestal that carries out horizontal rotation regulation around the Z axle on the installation pedestal of three-dimensional mobile platform's final execution end, has linked firmly the fluorescent tube of autocollimator on the rotatory pedestal, and is provided with the fastener that is used for limiting or allows its horizontal rotation on the rotatory pedestal, drives the fluorescent tube through the rotatory pedestal and carries out horizontal rotation regulation around the Z axle.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic configuration diagram of an embodiment of the present invention.
FIG. 2 is a first schematic diagram of the structure of the autocollimator position adjustment mechanism.
FIG. 3 is a second schematic diagram of the autocollimator position adjustment mechanism.
Fig. 4 is a partial configuration diagram of an autocollimator position adjustment mechanism.
Fig. 5 is a first structural diagram of the optical-to-optical axis image-adjusting mechanism.
Fig. 6 is a second schematic structural diagram of the optical-to-optical axis image adjusting mechanism.
Fig. 7 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 6.
Fig. 8 is a schematic view of the construction of the elastic jacket.
Fig. 9 is a first schematic diagram illustrating an adjustment process of the optical-to-optical axis image adjusting mechanism.
Fig. 10 is a schematic diagram of an adjusting process of the optical-to-optical axis image adjusting mechanism.
Fig. 11 is a third schematic diagram of the adjustment process of the optical-to-optical axis image adjusting mechanism.
Detailed Description
The invention is further explained below with reference to the drawings and the embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1 to 11, the present embodiment provides a high-precision optical lens processing apparatus, which includes a numerically controlled horizontal lathe 1C, an optical-to-optical axis image adjusting mechanism 2C, an autocollimator optical eccentricity measuring mechanism 3C, and an autocollimator position adjusting mechanism 4C on the lathe;
the autocollimator position adjusting mechanism comprises a three-dimensional moving platform 1A capable of adjusting the position in the X-axis, Y-axis and Z-axis directions, wherein a rotating seat body 3A for performing horizontal rotation adjustment around the Z-axis is arranged on a mounting seat body 2A at the final execution end of the three-dimensional moving platform, and a fastener for limiting or allowing the rotating seat body to horizontally rotate is arranged on the rotating seat body;
optics to optical axis camera mechanism include lathe connecting seat 1B, the outer tip coaxial of lathe connecting seat has linked firmly outer sleeve 2B, the outer sleeve is inside to be inserted and is equipped with first inner skleeve 3B, first inner skleeve is inside to be inserted and is equipped with second inner skleeve 4B, installs the frock 6B of the group 5B of awaiting measuring mirror on the second inner skleeve, wherein: the outer spherical surface 7B of the outer end of the second inner sleeve is contacted with the inner spherical surface 8B of the outer end of the first inner sleeve, the outer spherical surface of the outer end of the first inner sleeve is contacted with the inner spherical surface of the outer end of the outer sleeve, a plurality of first screws 9B and second screws 10B are uniformly distributed on the circumference of the outer sleeve, the plurality of first screws and the plurality of second screws are arranged in a staggered mode, the first screws are all in threaded connection with the rear of the outer sleeve and are in top connection with the non-spherical periphery of the first inner sleeve, and the second screws are all in threaded connection with the outer sleeve and penetrate through the abdicating through holes 11B of the first inner sleeve and are in top connection with the non-spherical periphery of the second inner sleeve;
the optical eccentricity measuring mechanism of the autocollimator comprises a light pipe 4A, a light source and a CCD camera which are connected in the light pipe; the autocollimator optical eccentricity measuring mechanism is electrically connected with a computer and is provided with a control system and a data acquisition, analysis and processing system. The autocollimator and its control and data acquisition, analysis and processing system belong to the prior art, and are not described in detail here.
The machine tool connecting seat of the optical axis aligning and imaging mechanism is clamped on a rotary main shaft 10C of a lathe, a light pipe of the optical eccentricity measuring mechanism of the autocollimator is fixedly connected on the rotary seat body, and the light pipe is aligned with a lens group to be measured of the optical axis aligning and imaging mechanism.
In the embodiment of the invention, the numerical control horizontal lathe is also provided with a turning tool mechanism 5C and a measuring head detection mechanism 6C between the autocollimator position adjusting mechanism and the optical alignment axis adjusting mechanism, the turning tool mechanism and the measuring head detection mechanism can move to adjust positions in an X axis and a Y axis, and an X axis guide rail structure 7C and a Y axis guide rail structure 8C are arranged on the turning tool, and the numerical control horizontal lathe belongs to the prior art on the lathe.
In the embodiment of the invention, a movable seat body 5A is arranged below the mounting seat body, a lifting seat body 6A is arranged below the movable seat body, a workbench 7A is arranged below the lifting seat body, and the workbench is fixed on a lathe frame 9C; the mounting base body is connected with the movable base body through a ball screw pair and a slide block slide rail moving pair in the Y-axis direction, the movable base body is connected with the lifting base body through a ball screw pair and a slide block slide rail moving pair in the X-axis direction, and the lifting base body is connected with the workbench through the lifting driving assembly.
In the embodiment of the invention, the lifting driving component comprises a vertical screw 8A, the vertical screw is in threaded connection with the workbench, the top end of the vertical screw is fixedly connected with a rotary handle 9A, the bottom end of the vertical screw is connected with an adapter plate 10A through a bearing, the adapter plate is vertically and fixedly connected with a guide rod 11A, and the top end of the guide rod is fixedly connected with the lifting seat body after penetrating through a guide hole in the workbench.
In the embodiment of the invention, the rotating base body is connected with the mounting base body through a spherical hinge, and the spherical hinge is arranged at the position of the rotating Z axis of the rotating base body.
In the embodiment of the invention, the fastening piece is a locking screw 12A, the locking screw passes through an abdicating notch 13A formed on the rotary seat body and then is screwed on the installation seat body, and a first spring 14A is sleeved on the locking screw between the installation seat body and the rotary seat body; the upper surface of the rotating base body is provided with a rotating plate body 15A, the rotating plate body is provided with an arc-shaped guide groove, the circle center of the arc-shaped guide groove is positioned on a rotating Z shaft of the rotating base body, a vertical guide rod penetrates through the arc-shaped guide groove, the bottom end of the vertical guide rod is fixedly connected to the rotating base body, the top end of the vertical guide rod is in threaded connection with a limit nut 18A, the upper surface of the rotating base body is symmetrically and fixedly connected with differential head fixing seats 19A on two sides of the rotating Z shaft, the differential head fixing seats are respectively provided with a differential head 20A, the heads of the differential heads are abutted against the side part of the rotating plate body, and a second spring 21A which is horizontal in the axial direction is connected between the side part and the differential head fixing seats; the upper surface of the rotating plate body is fixedly connected with a light pipe fixing seat, the light pipe fixing seat comprises a lower base 22A and an upper hoop body 23A, the lower base is screwed and fastened with the upper hoop body through screws, and the lower base is assembled with the upper hoop body to form a circular hole 17A for clamping a light pipe. The light pipe of the autocollimator is parallel to the X-axis.
In the embodiment of the invention, the outer sleeve is in threaded connection with the outer end part of the machine tool connecting seat; the outer end of outer sleeve is the end of inserting of first inner skleeve, the outer end of first inner skleeve is the end of inserting of second inner skleeve, the outer end of second inner skleeve is that the frock of awaiting measuring mirror group inserts the end.
In the embodiment of the invention, an installation hole 12B of the tool is coaxially arranged in the second inner sleeve, an elastic jacket 13B is coaxially and fixedly connected to the installation hole, the elastic jacket comprises a jacket base body 14B, a plurality of arc-shaped clamping pieces 15B are uniformly distributed on the circumference of the jacket base body, a gap 16B is formed between every two adjacent clamping pieces, outer end sides of the clamping pieces are respectively provided with an outer chamfer 17B and are positioned on a locking hole 18B at the outer end of the installation hole, the inner diameter of the locking hole is larger than that of the installation hole and is provided with an internal thread, a tightening nut 19B is screwed on the internal thread, the inner end edge of the tightening nut extrudes the outer chamfer to clamp the outer ends of the clamping pieces so as to clamp a clamping rod of the tool inserted into the elastic jacket, and the outer end of the tool is the installation position of the lens group to be tested.
In the embodiment of the invention, the included angle between two adjacent first screws and second screws is 45 degrees.
In an embodiment of the invention, the first screw and the second screw have different circumferential axial positions on the outer sleeve; the first screws are all propped against the outer peripheral part of the first inner sleeve far away from the spherical end, and the second screws are all propped against the outer peripheral part of the second inner sleeve far away from the spherical end.
A working method of a high-precision optical lens processing device comprises the following steps:
(1) Starting an autocollimator, when a light beam emitted by the electronic autocollimator is focused on the position of a curvature center through a fixed-focus objective lens, the light beam enters and is reflected along the normal direction on the surface A of a sample of the group of lenses to be measured, a reflected light cross target is imaged on a CCD plane, a cross target image is displayed on a display through computer processing, and if the cross target image cannot be displayed on the display, the cross target image is displayed on the display through adjusting an autocollimator position adjusting mechanism; the adjusting principle is as follows: the three-dimensional moving platform adjusts the position in the directions of an X axis, a Y axis and a Z axis, the rotating seat body drives the light pipe to horizontally rotate and adjust around the Z axis, wherein the rotation adjustment is divided into coarse adjustment and fine adjustment, the coarse adjustment is realized by loosening and tightening a locking screw, and the rotating seat body horizontally rotates and adjusts around the Z axis relative to the mounting seat body; fine adjustment is carried out by adjusting the differential heads on the two sides, so that the rotating plate body can horizontally rotate and adjust around the Z axis relative to the rotating seat body;
(2) Then, a spindle of a rotary lathe is used for measuring the central deviation of the surface A of the sample, the cross target image forms a circle on a CCD plane, the central deviation value of the surface A of the sample is calculated through the eccentricity of a computer, and if the eccentricity value is within the designed value range, adjustment is not needed; if the eccentricity value is out of the designed value range, adjusting the optical axis image adjusting mechanism by adjusting the optics until the eccentricity value of the A surface of the sample is in the designed value range, wherein the adjusting principle is as follows: the leaning posture of the first inner sleeve relative to the outer sleeve is changed by respectively adjusting the butting degree of a plurality of first screws, and then the butting degree of a plurality of second screws is further respectively adjusted on the basis of the posture of the first inner sleeve, so that the leaning posture of the second inner sleeve relative to the first inner sleeve is changed; a plurality of first screws always prop against the first inner sleeve to carry out axial spacing, and a plurality of second screws always prop against the second inner sleeve to carry out axial spacing. During adjustment, the abdicating through hole avoids interference with the second screw, and the adjustment action amplitude is fine adjustment;
(3) After the adjustment of the surface A of the sample is finished, the position of an autocollimator is changed, light beams emitted by the autocollimator are incident and reflected along the normal direction on the surface B of the sample, a reflected light cross target is also imaged on a CCD plane, the eccentricity value of the surface B is also adjusted within a design value range in the same step of the surface A adjustment, the optical axis of the lens is coaxial with a lathe rotating main shaft at the moment, and finally a numerical control horizontal lathe turns the lens base of the lens group according to the design value, wherein the lens base comprises an outer circle and front and rear end faces, the structural size of the lens base of the lens group is guaranteed, the mechanical axis of the lens base is changed, and the optical axis of the lens assembly is coaxial with the outer circle of the lens base.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a high accuracy optical lens processingequipment which characterized in that: the device comprises a numerical control horizontal lathe, an optical alignment axis image adjusting mechanism, an autocollimator optical eccentricity measuring mechanism and an autocollimator position adjusting mechanism, wherein the optical alignment axis image adjusting mechanism, the autocollimator optical eccentricity measuring mechanism and the autocollimator position adjusting mechanism are arranged on the lathe;
the autocollimator position adjusting mechanism comprises a three-dimensional moving platform capable of adjusting the position in the X-axis, Y-axis and Z-axis directions, wherein a rotating seat body for performing horizontal rotation adjustment around the Z-axis is arranged on a mounting seat body at the final execution end of the three-dimensional moving platform, and a fastener for limiting or allowing the rotating seat body to horizontally rotate is arranged on the rotating seat body;
optics to optical axis camera mechanism include the lathe connecting seat, the outer tip coaxial of lathe connecting seat has linked firmly the outer sleeve, the outer sleeve is inside to be inserted and is equipped with first inner skleeve, first inner skleeve is inside to be inserted and is equipped with the second inner skleeve, installs the frock of the mirror group that awaits measuring on the second inner skleeve, wherein: the outer spherical surface of the outer end of the second inner sleeve is contacted with the inner spherical surface of the outer end of the first inner sleeve, the outer spherical surface of the outer end of the first inner sleeve is contacted with the inner spherical surface of the outer end of the outer sleeve, a plurality of first screws and second screws are uniformly distributed on the circumference of the outer sleeve, the plurality of first screws and the plurality of second screws are arranged in a staggered mode, the first screws are all in threaded connection with the rear surface of the outer sleeve and are abutted against the non-spherical surface periphery of the first inner sleeve, and the second screws are all in threaded connection with the outer sleeve and penetrate through the abdicating through holes of the first inner sleeve and are abutted against the non-spherical surface periphery of the second inner sleeve;
the optical eccentricity measuring mechanism of the autocollimator comprises a light pipe, a light source and a CCD camera, wherein the light source and the CCD camera are connected in the light pipe;
the machine tool connecting seat of the optical axis aligning and imaging mechanism is clamped on a rotating main shaft of a lathe, a light pipe of the optical eccentricity measuring mechanism of the autocollimator is fixedly connected on a rotating seat body, and the light pipe is aligned with a lens group to be measured of the optical axis aligning and imaging mechanism.
2. The high-precision optical lens processing device according to claim 1, wherein: a movable seat body is arranged below the mounting seat body, a lifting seat body is arranged below the movable seat body, a workbench is arranged below the lifting seat body, and the workbench is fixed on a lathe frame; the mounting base body is connected with the movable base body through a ball screw pair and a slide block slide rail moving pair in the Y-axis direction, the movable base body is connected with the lifting base body through a ball screw pair and a slide block slide rail moving pair in the X-axis direction, and the lifting base body is connected with the workbench through the lifting driving assembly.
3. The high-precision optical lens processing apparatus according to claim 2, wherein: the lifting driving assembly comprises a vertical screw, the vertical screw is in threaded connection with the workbench, the top end of the vertical screw is fixedly connected with the rotary handle, the bottom end of the vertical screw is connected with the adapter plate through a bearing, a guide rod is vertically and fixedly connected onto the adapter plate, and the top end of the guide rod is fixedly connected onto the lifting base body after penetrating through a guide hole in the workbench.
4. The high-precision optical lens processing device according to claim 1, wherein: the rotating base body is connected with the installation base body through a spherical hinge, and the spherical hinge is arranged at the position of a rotating Z axis of the rotating base body.
5. The high-precision optical lens processing device according to claim 1, wherein: the fastening piece is a locking screw, the locking screw penetrates through an abdicating notch formed in the rotary base body and then is in threaded connection with the mounting base body, and a first spring is sleeved on the locking screw between the mounting base body and the rotary base body; the upper surface of the rotating base body is provided with a rotating plate body, the rotating plate body is provided with a circular arc-shaped guide groove, the circle center of the circular arc-shaped guide groove is positioned on a rotating Z axis of the rotating base body, a vertical guide rod penetrates through the circular arc-shaped guide groove, the bottom end of the vertical guide rod is fixedly connected to the rotating base body, the top end of the vertical guide rod is in threaded connection with a limiting nut, the upper surface of the rotating base body is symmetrically and fixedly connected with micro head fixing seats on two sides of the rotating Z axis, micro heads are arranged on the micro head fixing seats, the heads of the micro heads are abutted against the side portions of the rotating plate body, and second springs which are horizontal in the axial direction are connected between the side portions and the micro head fixing seats; the upper surface of the rotating plate body is fixedly connected with a light pipe fixing seat, the light pipe fixing seat comprises a lower base and an upper hoop body, the lower base and the upper hoop body are fastened through screw connection, and a circular duct for clamping a light pipe is formed by assembling the lower base and the upper hoop body.
6. The high-precision optical lens processing device according to claim 1, wherein: the outer sleeve is in threaded connection with the outer end part of the machine tool connecting seat; the outer end of outer sleeve is the end that inserts of first inner skleeve, the outer end of first inner skleeve is the end that inserts of second inner skleeve, the outer end of second inner skleeve is that the frock of awaiting measuring mirror group inserts the end.
7. The high-precision optical lens processing device according to claim 1, wherein: the utility model discloses a locking structure of optical fiber cable, including the installation hole of frock, the installation hole of second inner skleeve is provided with the installation hole of frock coaxially, the coaxial elastic jacket that has linked firmly on the installation hole, the elastic jacket is including pressing from both sides the cover base member, the circumference equipartition has the convex clamping piece of a plurality of on the cover base member, all have the clearance between the double-phase adjacent clamping piece, the outer terminal side of clamping piece all has outer chamfer and is located the locking hole of installation hole outer end, the locking hole internal diameter is greater than the installation hole internal diameter and is provided with the internal thread, the spiro union has a lock nut on the internal thread, the outer end of a plurality of clamping pieces is cramped to the outer chamfer of inner edge extrusion of lock nut, be used for pressing from both sides the clamping bar of the frock that inserts the elastic jacket inside, the outer tip of frock is the mounted position of the mirror group that awaits measuring.
8. The high-precision optical lens processing device according to claim 1, wherein: the included angle between the two adjacent first screws and the included angle between the two adjacent second screws are both 45 degrees.
9. The high-precision optical lens processing device according to claim 1, wherein: the first screw and the second screw are different in circumferential axial position on the outer sleeve; the first screws are all propped against the outer peripheral part of the first inner sleeve far away from the spherical end, and the second screws are all propped against the outer peripheral part of the second inner sleeve far away from the spherical end.
10. A method for operating a high precision optical lens processing apparatus as claimed in any one of claims 1 to 9, comprising the steps of:
(1) Starting an autocollimator, when a light beam emitted by the electronic autocollimator is focused on the position of a curvature center through a fixed-focus objective lens, the light beam enters and is reflected along the normal direction on the surface A of a sample of the group of lenses to be measured, a reflected light cross target is imaged on a CCD plane, a cross target image is displayed on a display through computer processing, and if the cross target image cannot be displayed on the display, the cross target image is displayed on the display through adjusting an autocollimator position adjusting mechanism; the adjustment principle is as follows: the three-dimensional moving platform adjusts the position in the directions of an X axis, a Y axis and a Z axis, the rotating seat body drives the light pipe to horizontally rotate and adjust around the Z axis, wherein the rotation adjustment is divided into coarse adjustment and fine adjustment, the coarse adjustment is realized by loosening and tightening a locking screw, and the rotating seat body horizontally rotates and adjusts around the Z axis relative to the mounting seat body; fine adjustment is carried out by adjusting the differential heads at the two sides, so that the rotating plate body rotates relative to the rotating seat body to carry out horizontal rotation adjustment around a Z axis;
(2) Then, a spindle of a rotary lathe is used for measuring the central deviation of the surface A of the sample, the cross target image forms a circle on a CCD plane, the central deviation value of the surface A of the sample is calculated through the eccentricity of a computer, and if the eccentricity value is within the designed value range, adjustment is not needed; if the eccentricity value is out of the design value range, adjusting the optical axis image adjusting mechanism until the eccentricity value of the A surface of the sample is in the design value range, wherein the adjustment principle is as follows: the leaning posture of the first inner sleeve relative to the outer sleeve is changed by respectively adjusting the butting degree of the first screws, and then the butting degree of the second screws is further respectively adjusted on the basis of the posture of the first inner sleeve to change the leaning posture of the second inner sleeve relative to the first inner sleeve;
(3) After the adjustment of the surface A of the sample is finished, the position of an autocollimator is changed, light beams emitted by the autocollimator are incident and reflected along the normal direction on the surface B of the sample, a reflected light cross target is also imaged on a CCD plane, the eccentricity value of the surface B is also adjusted within a design value range in the same step of the surface A adjustment, the optical axis of the lens is coaxial with a lathe rotating main shaft at the moment, and finally a numerical control horizontal lathe turns the lens base of the lens group according to the design value, wherein the lens base comprises an outer circle and front and rear end faces, the structural size of the lens base of the lens group is guaranteed, the mechanical axis of the lens base is changed, and the optical axis of the lens assembly is coaxial with the outer circle of the lens base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211581550.8A CN115740511A (en) | 2022-12-10 | 2022-12-10 | High-precision optical lens machining device and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211581550.8A CN115740511A (en) | 2022-12-10 | 2022-12-10 | High-precision optical lens machining device and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115740511A true CN115740511A (en) | 2023-03-07 |
Family
ID=85344937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211581550.8A Pending CN115740511A (en) | 2022-12-10 | 2022-12-10 | High-precision optical lens machining device and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115740511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117583934A (en) * | 2024-01-18 | 2024-02-23 | 泽野精密仪器(昆山)有限公司 | High-precision and high-efficiency machining clamp and machining method for microscope stand |
-
2022
- 2022-12-10 CN CN202211581550.8A patent/CN115740511A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117583934A (en) * | 2024-01-18 | 2024-02-23 | 泽野精密仪器(昆山)有限公司 | High-precision and high-efficiency machining clamp and machining method for microscope stand |
| CN117583934B (en) * | 2024-01-18 | 2024-04-02 | 泽野精密仪器(昆山)有限公司 | High-precision and high-efficiency machining clamp and machining method for microscope stand |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101387761B (en) | Center aligning assembling and regulating apparatus and method for optical system | |
| CN105234802A (en) | Small ball head tool single-turntable polishing machining device and tool setting method | |
| CN114719752B (en) | Method for measuring geometric parameters of precise parts based on universal tool microscope and measuring head | |
| CN110000606B (en) | Tool setting method for machining terahertz slow-wave structural part | |
| CN107096928A (en) | Centering car lens barrel processing unit (plant) and its method based on optical decentration system | |
| CN115740511A (en) | High-precision optical lens machining device and working method thereof | |
| CN111830724A (en) | Method and system for precise adjustment and detection of Fery prism assembly | |
| CN113588082B (en) | High-precision quick assembling and adjusting method for off-axis prism dispersion type hyperspectral imager | |
| CN114660754A (en) | High-precision assembling and adjusting method for large-caliber optical lens group | |
| DE102016014834B3 (en) | Method for ultra-precise centering of a transmissive or reflective optic, in particular a lens with an aspherical or free-form front lens surface | |
| CN110676187B (en) | Device and method for accurately measuring center of photosensitive surface of photoelectric detector | |
| CN218744867U (en) | High-precision optical lens processing device | |
| CN111288933A (en) | Automatic centering method for spherical or rotationally symmetric aspheric optical element | |
| CN212749412U (en) | Be used for accurate debugging and detecting system of Fery prism subassembly | |
| CN111215646B (en) | Horizontal ultra-precise optical lens centering lathe | |
| CN110561540B (en) | Adjusting device for optical centering instrument | |
| CN220592907U (en) | Pre-adjustment image finding device before lens processing | |
| CN108050959B (en) | On-line detection system for metal multi-surface scanning prism processing | |
| CN220516146U (en) | Quick adjustment image finding device during lens centering | |
| CN104647099B (en) | Microscope zoom compensation lens base turning jig | |
| CN218646565U (en) | Multi-axis adjustable auto-collimation device for centering | |
| CN104570376A (en) | Multiple visual field sensor optical system coaxial alignment system and alignment method | |
| CN220854117U (en) | Optical path rotation center detection device | |
| CN116626839B (en) | High-precision multi-axis adjusting device for micro lens array | |
| CN217717471U (en) | Camera fine-adjustment platform for chip visual inspection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |