CN220516146U - Quick adjustment image finding device during lens centering - Google Patents
Quick adjustment image finding device during lens centering Download PDFInfo
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- CN220516146U CN220516146U CN202322229103.2U CN202322229103U CN220516146U CN 220516146 U CN220516146 U CN 220516146U CN 202322229103 U CN202322229103 U CN 202322229103U CN 220516146 U CN220516146 U CN 220516146U
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- 230000003287 optical effect Effects 0.000 claims abstract description 28
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000003384 imaging method Methods 0.000 claims 3
- 238000003754 machining Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Abstract
The utility model relates to a quick adjustment image finding device for a lens centering vehicle, which comprises a machine tool spindle, wherein the front end of the machine tool spindle is connected with an auto-collimator centering mechanism through an optical pair spindle, a light pipe extension tube is arranged in a shaft hole at the rear end of the machine tool spindle in a penetrating way, the rear end of the light pipe extension tube is connected with an auto-collimator through a cross cursor adjusting mechanism, the auto-collimator is arranged on an adjustable inclined workbench through a spindle radial adjusting mechanism, the adjustable inclined workbench is arranged on a frame of the machine tool, and the auto-collimator is driven by an electric mechanism to perform reciprocating translational adjustment along the axial direction. The lens centering and quick adjusting image finding device can be used for pre-adjusting before machining the lens, and the auto-collimator is coaxial with the machine tool spindle by adjusting the inclination adjustment level of the adjustable inclination workbench and radially adjusting the auto-collimator spindle, so that the positions of multiple groups of spherical center images are quickly and axially positioned on the machine tool spindle, and the fed-back cross cursor images are displayed at reasonable positions by adjusting.
Description
Technical Field
The utility model relates to a rapid adjustment image finding device during lens centering, and belongs to the technical field of optical lens processing.
Background
At present, the existing centering adjustment device is mostly arranged on a tool rest in a prepositive mode, and is manually moved to an autocollimator measuring device, so that the time for positioning the spherical center image position is long. With the increase of market demands, the time for repositioning the spherical center of the objective lens when changing the model of the product is increased, so that the processing efficiency is reduced.
Disclosure of Invention
In view of the defects in the prior art, the technical problem to be solved by the utility model is to provide a device for quickly adjusting and finding an image when a lens is centered.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a quick adjustment looks for like device when camera lens centering, includes the lathe main shaft, the lathe main shaft front end is connected with auto-collimator centering mechanism through optics to the optical axis, wear to be equipped with the fluorescent tube extension tube in the shaft hole of lathe main shaft rear end, the fluorescent tube extension tube rear end is connected with the auto-collimator through cross cursor adjustment mechanism, the auto-collimator is installed on adjustable tilt table through radial adjustment mechanism of main shaft, adjustable tilt table is installed in the frame of lathe, the auto-collimator carries out reciprocal translation regulation along the axial through electric mechanism drive.
Preferably, the self-collimator centering mechanism comprises a centering steel ball fixing seat, an inner threaded hole for being in threaded connection with the tool outer threads of the clamping rod of the optical pair optical axis is formed in a port of the centering steel ball fixing seat, and a stepped hole for accommodating and propping up the centering steel ball is coaxially formed in the inner threaded hole.
Preferably, the specifications of the internal threaded holes at the two ends of the centering steel ball fixing seat are different, and the specifications of the stepped holes at the two ends are different.
Preferably, the cross cursor adjusting mechanism comprises an annular fixed adapter, the rear end of the fixed adapter is fastened with the auto-collimator in a coaxial screwed manner, the front end of the fixed adapter is inserted through the rear end of the light pipe extension tube, and the light pipe extension tube is fastened through set screws distributed circumferentially on the fixed adapter.
Preferably, the number of the set screws is two, the set screws are radially screwed on the fixed adapter, the ends of the set screws are tightly propped against the outer periphery of the light pipe extension tube, the light pipe extension tube is further radially provided with spring pins, the spring pins are radially tightly propped against the inner periphery of the fixed adapter, and the spring pins and the two set screws are circumferentially and uniformly distributed.
Preferably, the radial main shaft adjusting mechanism comprises a light pipe fixing seat, the auto-collimator is fixedly connected to the light pipe fixing seat, the light pipe fixing seat is connected with a sliding seat through an up-down adjusting assembly, the sliding seat is connected with a movable guide rail seat through a horizontal adjusting assembly, and the movable guide rail seat is connected with an adjustable inclined workbench.
Preferably, the up-down adjusting assembly comprises a plurality of locking screws and adjusting screws, the locking screws penetrate through mounting through holes in the light pipe fixing seat and are locked with the sliding seat in a threaded mode, and the adjusting screws are propped against the upper surface of the sliding seat after being in threaded connection with the light pipe fixing seat.
Preferably, the horizontal adjusting component comprises a sliding block sliding rail moving pair perpendicular to the axial direction of the auto-collimator, the sliding seat is connected with the moving guide rail seat through the sliding block sliding rail moving pair, a micro-head fixing seat is fixedly connected to the moving guide rail seat, a micro-head knob is mounted on the micro-head fixing seat, the micro-head knob is propped against the light pipe fixing seat, and a spring is connected between the micro-head fixing seat and the light pipe fixing seat.
Preferably, an up-down adjusting assembly is arranged between the adjustable tilt workbench and the frame of the machine tool, the up-down adjusting assembly comprises a plurality of locking screws and adjusting screws, the locking screws penetrate through mounting through holes in the adjustable tilt workbench and are locked with the frame in a threaded mode, the adjusting screws are in threaded connection with the adjustable tilt workbench and then are propped against the upper surface of the frame, and a level gauge is mounted on the adjustable tilt workbench.
Compared with the prior art, the utility model has the following beneficial effects: the lens centering and quick adjusting image finding device can be used for pre-adjusting before machining the lens, and the auto-collimator is coaxial with the machine tool spindle by adjusting the inclination adjustment level of the adjustable inclination workbench and radially adjusting the auto-collimator spindle, so that the positions of multiple groups of spherical center images are quickly and axially positioned on the machine tool spindle, and the fed-back cross cursor images are displayed at reasonable positions by adjusting.
The utility model will be described in further detail with reference to the drawings and the detailed description.
Drawings
Fig. 1 is a schematic view of the construction of an embodiment of the present utility model.
Fig. 2 is a schematic diagram of the configuration of the auto-collimator centering mechanism.
FIG. 3 is a schematic illustration of a cross-cursor adjustment mechanism.
FIG. 4 is a schematic diagram of a cross cursor adjustment mechanism.
Fig. 5 is a schematic configuration view of the spindle radial adjustment mechanism.
Fig. 6 is a schematic diagram of a state of cross cursor image adjustment.
Fig. 7 is a schematic diagram of a second state of cross cursor image adjustment.
Fig. 8 is a schematic diagram of the vertex image and the sphere center image of the lens to be processed.
Fig. 9 is a schematic diagram III of a state of cross cursor image adjustment.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. 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 in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As shown in fig. 1 to 9, the present embodiment provides a device for quickly adjusting and finding an image when centering a lens, which improves turning precision and assembly processing efficiency of various lenses and enlarges the use places thereof. The automatic collimator device comprises a machine tool spindle 1, wherein the front end of the machine tool spindle is connected with an automatic collimator centering mechanism 3 through an optical pair optical axis 2, a light pipe extension tube 4 is arranged in a shaft hole of the rear end of the machine tool spindle in a penetrating manner, the rear end of the light pipe extension tube is connected with an automatic collimator 6 through a cross cursor adjusting mechanism 5, the automatic collimator is arranged on an adjustable tilting table 8 through a spindle radial adjusting mechanism 7, the adjustable tilting table is arranged on a frame 9 of the machine tool, and the automatic collimator is driven by an electric mechanism to perform reciprocating translational adjustment along the axial direction. Because the spindle diameter of the machine tool spindle is limited, the auto-collimator needs to avoid interference with the machine tool spindle when moving along the axial direction of the machine tool spindle, so the auto-collimator needs to be adjustable in the spindle diameter direction, and meanwhile, because of the limitation of spindle diameter space, sometimes, a cross cursor measured by the auto-collimator exceeds a display area measured by an auto-collimator eccentric system, and the cross cursor needs to be pulled back to the display area again to facilitate the measurement of the auto-collimator optical eccentric measurement system.
In the embodiment of the utility model, the self-collimator centering mechanism comprises a centering steel ball fixing seat 10, an internal threaded hole for being in threaded connection with the external threads of a tool 12 of a clamping rod 11 of an optical pair optical axis is arranged at a port of the centering steel ball fixing seat, and a stepped hole 14 for accommodating and propping against a centering steel ball 13 is coaxially arranged in the internal threaded hole.
In the embodiment of the utility model, the specifications of the internal threaded holes at the two ends of the centering steel ball fixing seat are different, and the specifications of the stepped holes at the two ends are different.
In the embodiment of the utility model, the cross cursor adjusting mechanism comprises an annular fixed adapter 15, the rear end of the fixed adapter is coaxially and spirally connected and fastened with the auto-collimator, the front end of the fixed adapter is inserted through the rear end of the light pipe extension tube, and the light pipe extension tube is fastened through set screws 16 distributed circumferentially on the fixed adapter.
In the embodiment of the utility model, the number of the set screws is two and the set screws are radially screwed on the fixed adapter, the ends of the set screws are tightly propped against the outer periphery of the light pipe extension tube, the light pipe extension tube is also radially provided with the spring pins 17, the spring pins are tightly radially propped against the inner periphery of the fixed adapter, and the spring pins and the two set screws are uniformly distributed circumferentially.
In the embodiment of the utility model, the spindle radial adjusting mechanism comprises a light pipe fixing seat 18, the auto-collimator is fixedly connected to the light pipe fixing seat, the light pipe fixing seat is connected with a sliding seat 19 through an up-down adjusting assembly, the sliding seat is connected with a movable guide rail seat 20 through a horizontal adjusting assembly, and the movable guide rail seat is connected with an adjustable inclined workbench.
In the embodiment of the utility model, the electric mechanism adopts a ball screw pair driven by a motor, wherein the movable guide rail seat is connected with the adjustable inclined workbench through the ball screw pair, the ball screw 28 is arranged on the adjustable inclined workbench, the ball nut 29 screwed on the ball screw is arranged on the movable guide rail seat, and a sliding block sliding rail moving pair parallel to the axial direction of the light pipe extension tube is also arranged between the movable guide rail seat and the adjustable inclined workbench.
In the embodiment of the utility model, the up-down adjusting assembly comprises a plurality of locking screws 21 and adjusting screws 22, wherein the locking screws penetrate through mounting through holes in the light pipe fixing seat and are then locked with the sliding seat in a threaded manner, and the adjusting screws are propped against the upper surface of the sliding seat after being in threaded connection with the light pipe fixing seat.
In the embodiment of the utility model, the horizontal adjusting component comprises a sliding block sliding rail moving pair 23 perpendicular to the axial direction of the auto-collimator, the sliding seat is connected with a moving guide rail seat through the sliding block sliding rail moving pair, a micro-head fixing seat 24 is fixedly connected on the moving guide rail seat, a micro-head knob 25 is arranged on the micro-head fixing seat, the micro-head knob is propped against the end side of the light pipe fixing seat, and a spring 26 is connected between the micro-head fixing seat and the light pipe fixing seat.
In the embodiment of the utility model, an up-down adjusting assembly is arranged between the adjustable inclined workbench and the frame of the machine tool, the up-down adjusting assembly comprises a plurality of locking screws and adjusting screws, the locking screws penetrate through mounting through holes on the adjustable inclined workbench and are then locked with the frame in a threaded manner, and the adjusting screws are in threaded connection with the adjustable inclined workbench and then are propped against the upper surface of the frame.
In the embodiment of the present utility model, the level gauge 27 is mounted on the adjustable tilt table.
The adjustable tilting workbench is characterized in that the workbench is fixed on the machine tool by the locking screw, one end of the workbench is fixed on the machine tool, the other end of the workbench is provided with the auto-collimator optical measurement, when the auto-collimator optical measurement moves along the axial direction of the main shaft of the machine tool, the workbench tilts, the workbench is pre-connected on the machine tool by the locking screw at the moment, the level is adjusted by the adjusting screw, the level is displayed by the level meter, the initial level is adjusted by the locking screw and the adjusting screw in a mutually matched manner, and finally the locking screw is locked.
In the embodiment of the present utility model, the optical axis of the optical pair is the prior art, and patent CN219005474U is disclosed.
In the embodiment of the utility model, the working principle of the utility model is as follows: the quick adjustment and image finding device can be used for pre-adjusting before machining the lens when the lens is centered, and the auto-collimator is radially adjusted to be coaxial with the main shaft of the machine tool through the inclination adjustment level of the adjustable inclination workbench and the main shaft of the auto-collimator, so that the fed-back cross cursor image is displayed at a reasonable position through adjustment. The specific operation steps are as follows:
the adjustable inclined workbench is pre-connected to the machine tool through a locking screw, the locking screw is not locked at first, an adjusting screw is connected to the adjustable inclined workbench through a screw, the end part of the adjusting screw is propped against the machine tool, and the adjusting screw is used for adjusting the auto-collimator to be parallel to a main shaft of the machine tool and displaying the level through a level gauge;
the centering steel ball is connected to the optical axis of the optical pair through a centering steel ball fixing seat;
adjusting the knob of the micro-head, loosening a locking screw of the light pipe fixing seat, and adjusting the adjusting screw up and down, and adjusting the autocollimator to be coaxial with a main shaft of the machine tool, wherein the image display area can clearly see the spherical center like a cross cursor;
after the auto-collimation measurement system is electrified, as shown in fig. 6, the light beam reflected by the centering steel ball can be seen to be displayed in the image display area, the cursor is not in the middle of the display area, and even the cross cursor appears at the edge of the image display area;
at this time, the cross cursor is adjusted by two set screws of the cross cursor adjusting mechanism, as shown in fig. 7, so that the cross cursor returns to the middle of the image display area again;
when the device is used, the self-collimator centering mechanism is replaced by a lens to be processed, the control system controls the self-collimator measuring system to axially move along the main shaft of the machine tool, a clear cross cursor image appears on the central line of the display area, the optical pair optical axis is rotated, the cross cursor is not moved, the point is a vertex image S0, and the position of the point is input into the electric control panel; moving the autocollimator measuring system along the axial direction of the main shaft of the machine tool again, finding out clear spherical center images S1 and S2 before and after the vertex image position, and inputting the positions of the corresponding spherical center images S1 and S2 into the corresponding positions of an electric control panel; then, the auto-collimator measuring device moves to the spherical center image S1, the auto-collimator eccentric measuring software is started to measure, meanwhile, the optical axis is rotationally adjusted, the cross cursor corresponding to the position of the spherical center image S1 moves in a circle drawing mode in a display area, at the moment, the handle on the optical axis corresponding to the optical axis of the spherical center image S1 is adjusted, the circle drawing motion track of the cross cursor corresponding to the spherical center image S1 is made to be as small as possible in the display area, the eccentric numerical value is controlled to be 5 mu m on the auto-collimator eccentric measuring software, the spherical center image S2 is adjusted by adopting the same method, and at the moment, the optical axis of the lens is considered to be coaxial with the axis of the machine tool spindle;
the optical axis is marked as an optical axis rotation starting position, the auto-collimator measuring device is moved to the spherical center image S1 position, measurement is started, the optical axis is rotated for one circle, the cross cursor in the image display area performs micro circle drawing motion, and similarly, the spherical center image S2 performs the same operation; repeating the same operation again after turning is finished, wherein as a detection procedure of turning completion, the eccentric values before and after machining are basically unchanged, and the optical axis of the lens after machining is considered to be still coaxial with the main shaft of the machine tool;
finally, the auto-collimator measuring device is returned to the safe position, the turning lens is started, and after turning is finished, the auto-collimator measuring device detects the eccentric data of the spherical center image position again, and the working procedures of machining and detection are completed.
In general, the utility model has the advantages of simple structure, simple operation, convenient adjustment and the like.
The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims (9)
1. The utility model provides a quick adjustment looks for like device when camera lens centering, includes lathe main shaft, its characterized in that: the front end of the machine tool spindle is connected with an autocollimator centering mechanism through an optical pair spindle, a light pipe extension tube is arranged in a shaft hole of the rear end of the machine tool spindle in a penetrating way, the rear end of the light pipe extension tube is connected with an autocollimator through a cross cursor adjusting mechanism, the autocollimator is arranged on an adjustable tilting worktable through a spindle radial adjusting mechanism, the adjustable tilting worktable is arranged on a frame of the machine tool, and the autocollimator is driven by an electric mechanism to carry out reciprocating translational adjustment along the axial direction.
2. The quick adjustment and image finding device for centering a lens according to claim 1, wherein: the self-collimator centering mechanism comprises a centering steel ball fixing seat, an inner threaded hole for being in threaded connection with the outer threads of the fixture of the optical axis clamping rod is formed in the port of the centering steel ball fixing seat, and a stepped hole for accommodating and propping the centering steel ball is coaxially formed in the inner threaded hole.
3. The quick adjustment and image finding device for centering a lens according to claim 2, wherein: the specification of the internal threaded holes at the two ends of the centering steel ball fixing seat is different, and the specification of the stepped holes at the two ends is different.
4. The quick adjustment and image finding device for centering a lens according to claim 1, wherein: the cross cursor adjusting mechanism comprises an annular fixed adapter, the rear end of the fixed adapter is fixedly connected with the auto-collimator in a coaxial screwed mode, the front end of the fixed adapter is inserted through the rear end of the light pipe extension tube, and the light pipe extension tube is tightly fixed through set screws distributed on the circumference of the fixed adapter.
5. The quick adjustment and imaging device for centering a lens according to claim 4, wherein: the number of the set screws is two, the set screws are radially screwed on the fixed adapter, the ends of the set screws are tightly propped against the outer periphery of the light pipe extension tube, the light pipe extension tube is further radially provided with spring pins, the spring pins are radially tightly propped against the inner periphery of the fixed adapter, and the spring pins and the two set screws are uniformly distributed circumferentially.
6. The quick adjustment and image finding device for centering a lens according to claim 1, wherein: the main shaft radial adjusting mechanism comprises a light pipe fixing seat, the auto-collimator is fixedly connected to the light pipe fixing seat, the light pipe fixing seat is connected with a sliding seat through an up-down adjusting assembly, the sliding seat is connected with a movable guide rail seat through a horizontal adjusting assembly, and the movable guide rail seat is connected with an adjustable inclined workbench.
7. The quick adjustment and imaging device for centering a lens according to claim 6, wherein: the upper and lower adjusting assembly comprises a plurality of locking screws and adjusting screws, the locking screws penetrate through mounting through holes in the light pipe fixing base and are locked with the sliding base in a threaded mode, and the adjusting screws are propped against the upper surface of the sliding base after being in threaded connection with the light pipe fixing base.
8. The quick adjustment and imaging device for centering a lens according to claim 6, wherein: the horizontal adjusting assembly comprises a sliding block sliding rail moving pair perpendicular to the axial direction of the auto-collimator, the sliding seat is connected with a moving guide rail seat through the sliding block sliding rail moving pair, a micro-head fixing seat is fixedly connected onto the moving guide rail seat, a micro-head knob is mounted on the micro-head fixing seat, the micro-head knob is propped against the light pipe fixing seat, and a spring is connected between the micro-head fixing seat and the light pipe fixing seat.
9. The quick adjustment and image finding device for centering a lens according to claim 1, wherein: an upper and lower adjusting assembly is arranged between the adjustable inclined workbench and the frame of the machine tool, the upper and lower adjusting assembly comprises a plurality of locking screws and adjusting screws, the locking screws penetrate through mounting through holes on the adjustable inclined workbench and are then locked with the frame in a threaded manner, and the adjusting screws are propped against the upper surface of the frame after being in threaded connection with the adjustable inclined workbench; and a level gauge is arranged on the adjustable inclined workbench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322229103.2U CN220516146U (en) | 2023-08-18 | 2023-08-18 | Quick adjustment image finding device during lens centering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322229103.2U CN220516146U (en) | 2023-08-18 | 2023-08-18 | Quick adjustment image finding device during lens centering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220516146U true CN220516146U (en) | 2024-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322229103.2U Active CN220516146U (en) | 2023-08-18 | 2023-08-18 | Quick adjustment image finding device during lens centering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220516146U (en) |
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2023
- 2023-08-18 CN CN202322229103.2U patent/CN220516146U/en active Active
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