CN216283309U

CN216283309U - PGI centering device

Info

Publication number: CN216283309U
Application number: CN202122844926.7U
Authority: CN
Inventors: 王蓉; 王昕蕾; 施超; 陈聪; 周恋茹; 邓荣家; 程军; 杨海燕; 杨志坚
Original assignee: Chengdu Guangming South Optical Technology Co ltd; CDGM Glass Co Ltd
Current assignee: Chengdu Guangming South Optical Technology Co ltd; CDGM Glass Co Ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-04-12
Anticipated expiration: 2031-11-19

Abstract

The utility model provides a PGI centering device with high detection efficiency and high detection precision, wherein a bearing seat assembly is arranged on a base plate; the bearing seat upright column and the bearing cover are in interference fit with the bearing seat component; the left guide sleeve is sleeved in the bearing seat upright post, the left spring is sleeved in the left guide sleeve, the left headed guide sleeve is sleeved in the bearing seat upright post, and the left headed guide sleeve is in interference fit connection with the cross beam plate; the lower centering table is arranged on the workbench, and the workbench is arranged on the bottom plate; the upper centering table is connected with the cross beam plate, and the upper centering table and the lower centering table are coaxial; the positioning block is arranged on the bottom plate, the cushion table is arranged on the positioning block, and the positioning pin is arranged in the positioning block; the cushion table upright post is arranged on the cushion table; the right guide sleeve is sleeved into the cushion table upright post, the right spring is sleeved into the right guide sleeve, the right headed guide sleeve is sleeved into the cushion table upright post, and the right headed guide sleeve is connected with the cross beam plate in an interference fit manner; the bottom plate is parallel to the cross beam plate. The utility model ensures that the upper centering table and the lower centering table are coaxial, and the aspheric lens detected each time accords with the required detection position.

Description

PGI centering device

Technical Field

The utility model relates to a centering device, in particular to an auxiliary centering device on a PGI (surface shape detection profiler) platform.

Background

The aspheric optical element is adopted in the optical system, so that the quantity and the weight of the optical element can be reduced, the size of the system is reduced, the structure of an instrument is simplified, aberration correction is facilitated, the imaging quality is improved, the degree of freedom of optical design can be increased, and the cost is reduced.

Meanwhile, higher requirements are provided for the detection of the surface type parameters of the optical aspheric lens, so that the corresponding height is provided for the locating requirements of the aspheric lens detected on PGI detection equipment, and as the manual placement of the lens is adopted in the prior art, the detection efficiency is low, the detection error is large, and as the product diversification is carried out, the manual placement of the aspheric lens is carried out for detection, the following problems are gradually exposed: 1) when the aspheric lens is placed, the centering is slow and the centering is unreliable; 2) when the PGI equipment detects the aspheric surface type, the PGI equipment needs to be placed for multiple times and detected for multiple times to obtain an approximate value. Because of repeated detection and no reference of corresponding basic data, each aspheric lens needs to be detected for more than three times, so that the most reasonable fitting value is found out, the inspection efficiency is reduced, and the labor cost, the equipment loss cost and the like are improved; 3) when the aspheric lens is placed on the detection table, the aspheric lens is mainly controlled by people, and the detection result depends on people, so that the fixed centering position of the lens placed on the auxiliary tool is difficult to guarantee, the centering position depends on human factors, each lens can be repeatedly detected for several times, the testing time is about 10-15 minutes every time, and the human-computer cooperation cannot achieve a reasonable state.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a PGI centering device with high detection efficiency and high detection precision.

The technical scheme adopted by the utility model for solving the technical problem is as follows: the PGI centering device is arranged on the base plate; the bearing seat upright column and the bearing cover are in interference fit with the bearing seat assembly; the left guide sleeve is sleeved in the bearing seat upright post, the left spring is sleeved in the left guide sleeve, the left headed guide sleeve is sleeved in the bearing seat upright post, and the left headed guide sleeve is connected with the cross beam plate in an interference fit manner; the lower centering table is arranged on a workbench, and the workbench is arranged on the bottom plate; the upper centering table is connected with the cross beam plate, and the upper centering table and the lower centering table are coaxial; the positioning block is arranged on the bottom plate, the cushion table is arranged on the positioning block, and the positioning pin is arranged in the positioning block; the cushion table upright post is arranged on the cushion table; the right guide sleeve is sleeved into the cushion table upright post, a right spring is sleeved into the right guide sleeve, a right leading guide sleeve is sleeved into the cushion table upright post, and the right leading guide sleeve is in interference fit connection with the cross beam plate; the bottom plate is parallel to the cross beam plate.

And the two caps are arranged on the cross beam plate and are respectively screwed into the bearing seat upright post and the cushion table upright post.

Further, still include left crossbeam handle and right crossbeam handle, left side crossbeam handle, right crossbeam handle set up both ends about the crossbeam board respectively, and respectively with crossbeam board threaded connection.

Further, the positioning block is connected with the cushion table through an M4X 16 socket head cap screw.

Further, the cushion table stand column is in threaded connection with the cushion table.

Furthermore, the positioning pin is screwed into the positioning hole on the bottom plate for positioning.

Further, the bearing block assembly is connected with the bottom plate through an M4X 16 socket head cap screw.

Further, the upper centering table is connected with the beam plate through an M4X 16 hexagon socket head cap screw.

Furthermore, the left leading guide sleeve, the right leading guide sleeve and the beam plate are respectively connected through an M2-3 slotted flat end locking screw in an interference fit manner.

Further, the lower centering table is connected with the bottom plate through an M4X 55 hexagon socket head cap screw.

Furthermore, the left guide sleeve and the right guide sleeve are the same in size and shape; the left spring and the right spring are the same in size and shape; the left leading guide sleeve and the right leading guide sleeve are the same in size and shape; the left beam handle and the right beam handle are the same in size and shape.

The utility model has the beneficial effects that: the Z-direction movement fixation is ensured through the left guide sleeve and the right guide sleeve, the X-direction position fixation is ensured through the crossbeam plate with fixed length, and the Y-direction position fixation is ensured through the positioning pin and the positioning hole, so that the upper centering table and the lower centering table are coaxial, the aspheric lens detected each time conforms to the detection position required in detection, and the difference of the centering positions caused by different personnel and different placement modes is improved; in order to ensure the reliability of data, each detection is carried out for at least three times or more, the device is used for once positioning and once testing, the time length of each detection is at least saved by 20-30 minutes, the machine occupation time length of each detection is reduced, the detection efficiency of PGI detection equipment is improved by more than three times, and the detection precision is far higher than that of manual placement; the detection of the aspheric lenses with different outer diameters of phi 4.5-50 is realized by replacing the upper centering table and the lower centering table. The device is suitable for automatic centering and positioning of double-concave, double-convex and one-convex-concave aspheric high-precision lenses.

Drawings

FIG. 1 is a cross-sectional view of a front view of the device of the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is an exploded view of fig. 1.

Fig. 5 is a perspective view of the device of the present invention.

Fig. 6 is a schematic diagram of the operation of the apparatus of the present invention.

Detailed Description

As shown in fig. 1-5, the PGI centering device of the present invention includes a base plate 1, a positioning block 2, a cushion table 3, a cushion table upright post 4, a left guide sleeve 5, a right guide sleeve 24, a left spring 6, a right spring 21, a left headed guide sleeve 7, a right headed guide sleeve 22, a left beam handle 8, a right beam handle 23, a cap 9, a beam plate 11, an upper centering table 13, a lower centering table 14, a bearing seat upright post 15, a bearing cap 16, a bearing seat assembly 17, a workbench 18, and a positioning pin 20, wherein the upper centering table 13 and the lower centering table 14 are coaxial; the bottom plate 1 is parallel to the cross beam plate 11; the bearing seat assembly 17 is arranged on the bottom plate 1, and the bearing seat assembly 17 is connected with the bottom plate 1 through an M4X 16 socket head cap screw, so that the positioning block 2 and the connecting parts above the positioning block can conveniently rotate around the central axis of the bearing seat upright post 15 when the tool is opened, and the positioning block 2 and the connecting parts can keep a fixed position relation; the bearing seat upright post 15 and the bearing cover 16 are in interference fit with the bearing seat assembly 17; the left guide sleeve 5 is sleeved in the bearing seat upright post 15, the left spring 6 is sleeved in the left guide sleeve 5, the left headed guide sleeve 7 is sleeved in the bearing seat upright post 15, and the left headed guide sleeve 7 is connected with the cross beam plate 11 in an interference fit manner; the lower centering table 14 is arranged on the workbench 18, the workbench 18 is arranged on the bottom plate 1, and the workbench 18 and the lower centering table 14 are connected with the bottom plate 1 through an M4 multiplied by 55 hexagon socket head cap screw; the positioning block 2 is arranged on the bottom plate 1, the cushion table 3 is arranged on the positioning block 2, the cushion table upright post 4 is arranged on the cushion table 3, the positioning block 2 is connected with the cushion table 3 through an M4 multiplied by 16 hexagon socket head cap screw, and the cushion table upright post 4 is in threaded connection with the cushion table 3; the right guide sleeve 24 is sleeved in the cushion table upright post 4, the right spring 21 is sleeved in the right guide sleeve 24, the right guide sleeve 22 with the head is sleeved in the cushion table upright post 4, and the right guide sleeve 22 with the head is in interference fit with the cross beam plate 11; the left crossbeam handle 8 and the right crossbeam handle 23 are respectively arranged at the left end and the right end of the crossbeam plate 11 and are respectively in threaded connection with the crossbeam plate 11, so that the crossbeam plate 11 can be conveniently pressed down; the upper centering table 13 is connected with the beam plate 11 through an M4 multiplied by 16 hexagon socket head cap screw 12; the left leading guide sleeve 7, the right leading guide sleeve 22 and the beam plate 11 are respectively connected through an M2-3 slotted flat end locking screw 10 in an interference fit manner, so that the left leading guide sleeve 7 and the right leading guide sleeve 22 are prevented from circumferential rotation caused by interference failure; the two caps 9 are arranged on the cross beam plate 11 and are respectively screwed into the bearing seat upright post 15 and the cushion table upright post 4, so that the cross beam plate 11 can ensure the spatial position during design in a static state, and the spring force of the left spring 6 and the spring force of the right spring 21 can be prevented from ejecting the cross beam plate; the positioning pin 20 is arranged in the positioning block 2, the bottom plate 1 and the positioning block 2 can move relatively, when the positioning block 2 needs to rotate (the tool is opened), the positioning pin 20 is loosened, and the positioning block 2 and the connecting components above the positioning block rotate together; when the positioning block 2 needs to be fixed, the positioning pin 20 is screwed into the positioning hole 19 on the bottom plate 1 for positioning.

The left guide sleeve 5 and the right guide sleeve 24 have the same size and shape; the left spring 6 and the right spring 21 have the same size and shape; the left leading guide sleeve 7 and the right leading guide sleeve 22 have the same size and shape; the left beam handle 8 and the right beam handle 23 are the same in size and shape.

Before the PGI centering device is installed, the required horizontal position is adjusted and fixed, the lower centering table 14 is connected with the base plate 1 for positioning, the crossbeam plate 11 depends on the left and right upright post parts to ensure that the Z-direction moving track is fixed, the crossbeam plate 11 with the fixed length ensures that the X-direction position is fixed, and the positioning pin 20 and the positioning hole 19 ensure that the Y-direction position is fixed, so that the upper centering table 13 and the lower centering table 14 are coaxial, and the aspheric lens detected each time is ensured to accord with the detection position required during detection. The upper centering table 13 and the lower centering table 14 can be replaced, thereby realizing the detection of aspheric lenses with different outer diameters.

During working, the PGI centering device is fixedly placed on a PGI detection equipment platform, then the tool is opened, and as shown in FIG. 6, the aspheric lens is placed on the lower centering table 14 by using tweezers; then, the tool (the positioning block 2 and the connecting parts above the positioning block) is rotated to the state shown in fig. 5, and the positioning pin 20 is screwed into the positioning hole 19, so that the upper centering table 13 and the lower centering table 14 are coaxial; then the crossbeam plate 11 is pressed down, and the moving tracks in the Z direction (up and down) are the same each time through the left guide sleeve 5 and the right guide sleeve 24, so that the coaxiality of the aspheric lens and the upper centering table 13 and the lower centering table 14 is ensured to be infinitely close; then, the crossbeam plate 11 is loosened, the left spring 6 and the right spring 21 are reset, and the tool is opened to form the PGI, so that the problem of interference when the PGI equipment detects the surface type of the aspheric lens is solved, as shown in FIG. 6.

Claims

A PGI centering device, characterized by: the bearing seat assembly (17) is arranged on the bottom plate (1); the bearing seat upright column (15) and the bearing cover (16) are in interference fit with the bearing seat assembly (17); the left guide sleeve (5) is sleeved into the bearing seat upright post (15), the left spring (6) is sleeved into the left guide sleeve (5), the left guide sleeve with the head (7) is sleeved into the bearing seat upright post (15), and the left guide sleeve with the head (7) is connected with the cross beam plate (11) in an interference fit manner; the lower centering table (14) is arranged on a workbench (18), and the workbench (18) is arranged on the bottom plate (1); the upper centering table (13) is connected with the cross beam plate (11), and the upper centering table (13) and the lower centering table (14) are coaxial; the positioning block (2) is arranged on the bottom plate (1), the cushion table (3) is arranged on the positioning block (2), and the positioning pin (20) is arranged in the positioning block (2); the cushion table upright post (4) is arranged on the cushion table (3); the right guide sleeve (24) is sleeved in the cushion table upright post (4), the right spring (21) is sleeved in the right guide sleeve (24), the right guide sleeve (22) with a head is sleeved in the cushion table upright post (4), and the right guide sleeve (22) with a head is connected with the cross beam plate (11) in an interference fit manner; the bottom plate (1) is parallel to the cross beam plate (11).
2. The PGI centering apparatus of claim 1, wherein: the bearing pedestal column structure is characterized by further comprising two cover caps (9), wherein the two cover caps (9) are arranged on the cross beam plate (11) and are screwed into the bearing pedestal column (15) and the cushion table column (4) respectively.
3. The PGI centering apparatus of claim 1 or 2, wherein: the left crossbeam handle (8) and the right crossbeam handle (23) are arranged at the left end and the right end of the crossbeam plate (11) respectively, and are in threaded connection with the crossbeam plate (11) respectively.
4. The PGI centering apparatus of claim 1 or 2, wherein: the positioning block (2) is connected with the cushion table (3) through an M4X 16 hexagon socket head cap screw; the cushion table upright post (4) is in threaded connection with the cushion table (3).
5. The PGI centering apparatus of claim 1 or 2, wherein: the positioning pin (20) is screwed into the positioning hole (19) on the bottom plate (1) for positioning.
6. The PGI centering apparatus of claim 1 or 2, wherein: the bearing seat assembly (17) is connected with the bottom plate (1) through an M4 multiplied by 16 hexagon socket head cap screw.
7. The PGI centering apparatus of claim 1 or 2, wherein: the upper centering table (13) is connected with the beam plate (11) through an M4 x 16 hexagon socket head cap screw (12).
8. The PGI centering apparatus of claim 1 or 2, wherein: the left headed guide sleeve (7), the right headed guide sleeve (22) and the beam plate (11) are respectively connected through a slotted flat end locking screw (10) of M2-3 in an interference fit manner.
9. The PGI centering apparatus of claim 1 or 2, wherein: the lower centering table (14) is connected with the bottom plate (1) through an M4 x 55 hexagon socket head cap screw.
10. The PGI centering apparatus of claim 1 or 2, wherein: the left guide sleeve (5) and the right guide sleeve (24) are the same in size and shape; the left spring (6) and the right spring (21) are the same in size and shape; the left guide sleeve (7) with the head is the same as the right guide sleeve (22) with the head in size and shape.
11. The PGI centering apparatus of claim 3, wherein: the left beam handle (8) and the right beam handle (23) are the same in size and shape.