CN219265668U

CN219265668U - Horizontal interferometer easy to position lens

Info

Publication number: CN219265668U
Application number: CN202320759757.3U
Authority: CN
Inventors: 冯贤勇
Original assignee: Chengdu Xinfengda Photoelectric Technology Co ltd
Current assignee: Chengdu Xinfengda Photoelectric Technology Co ltd
Priority date: 2023-04-09
Filing date: 2023-04-09
Publication date: 2023-06-27
Anticipated expiration: 2033-04-09

Abstract

The utility model relates to the technical field of lens detection equipment and discloses a horizontal interferometer easy to position a lens, which comprises an interferometer workbench, wherein a three-jaw chuck is arranged on the interferometer workbench, the axis of the three-jaw chuck is horizontally arranged, a pre-clamping cushion block is arranged on the inner ring of the three-jaw chuck and moves along the axial direction of the three-jaw chuck, the pre-clamping cushion block is used for adjusting the positioning height of the lens to enable the detection surface of the lens to protrude out of a claw of the three-jaw chuck, an annular cavity is arranged in the pre-clamping cushion block, a plurality of negative pressure holes communicated with the annular cavity are formed in the front end surface of the pre-clamping cushion block, and the pre-clamping cushion block is connected with a negative pressure mechanism. The negative pressure is generated in the pre-clamping cushion block to adsorb the lens, so that the lens does not fall under the self gravity, and then the claw of the three-claw chuck is used for positioning and clamping the lens, so that the lens is automatically pre-limited, the situation that the lens is prevented from moving to cause collision and scratch is avoided, the manual supporting operation is omitted, the labor cost is reduced, and the lens is positioned and installed more simply and rapidly.

Description

Horizontal interferometer easy to position lens

Technical Field

The utility model relates to the technical field of lens detection equipment, in particular to a horizontal interferometer easy to position a lens.

Background

Quality inspection of the lenses is critical after the lens production process. The existing horizontal interferometer mostly adopts a three-jaw chuck to position and clamp the lens, and as the three jaws of the three-jaw chuck move synchronously, the lens can be coaxially positioned on the three-jaw chuck, but the special structure of the horizontal interferometer, namely, the axis of the three-jaw chuck is horizontally arranged, so that the lens is not easy to position and clamp, the lens is particularly characterized in that the lens needs to be vertically placed on the three-jaw chuck, a bearing plane is not arranged on the three-jaw chuck, the lens is not pre-limited, the lens is easy to move and collide with the jaws in the clamping process, and the scraping or damage is caused, so that the lens is required to be manually supported to wait for the completion of the three-jaw chuck when the lens is installed, and the manual labor intensity is high; when clamping the lens with smaller size, the manual support is easy for the three-jaw chuck to interfere, so that the lens is difficult to position and install, and the condition of hurting workers can also occur.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides the horizontal interferometer which is easy to position the lens, automatically pre-limit the lens, prevent the lens from moving to cause collision and scratch, save the operation of manual support, reduce the labor cost and enable the positioning and the installation of the lens to be simpler and faster.

The aim of the utility model is realized by the following technical scheme: the utility model provides an easy horizontal interferometer who fixes a position lens, includes the interferometer workstation, be provided with the three-jaw chuck on the interferometer workstation, the axis level of three-jaw chuck sets up, the inner circle of three-jaw chuck is provided with the pre-clamp cushion, the pre-clamp cushion is followed the axial displacement of three-jaw chuck, the pre-clamp cushion is used for adjusting the locating height of lens and makes the detection surface of lens outstanding the jack catch of three-jaw chuck, be provided with the annular cavity in the pre-clamp cushion, a plurality of with the communicating negative pressure hole of annular cavity has been seted up to the preceding terminal surface of pre-clamp cushion, the pre-clamp cushion is connected with negative pressure mechanism.

Adopt above-mentioned technical scheme's effect does, makes the production negative pressure in the pre-clamping cushion by negative pressure mechanism, places the lens on the pre-clamping cushion, adsorbs the lens through the negative pressure that the negative pressure hole produced, makes the lens not drop under self gravity, then fixes a position the centre gripping to the lens through the jack catch of three-jaw chuck to automatic carry out spacing in advance to the lens, prevent that the lens from removing and causing the condition of collision scratch, saved the operation of manual support, reduced the cost of labor, make the location installation of lens simpler and swift.

In some embodiments, a mounting plate is fixed on the interferometer workbench, the mounting plate is located at the rear of the three-jaw chuck, a screw is rotationally connected to the mounting plate, the axis of the screw is parallel to the axis of the three-jaw chuck, the pre-clamping cushion block is in threaded fit with the screw, the pre-clamping cushion block is in sliding fit with the three-jaw chuck, the pre-clamping cushion block is enabled to move along the axial direction of the three-jaw chuck in a screw nut pair mode, and the position of the pre-clamping cushion block is adjusted to clamp lenses with different thickness sizes.

In some embodiments, a sliding block is fixed on the outer side wall of the pre-clamping cushion block, a sliding groove is formed in the inner wall of the three-jaw chuck, and the sliding block is slidably matched in the sliding groove to limit the rotational freedom degree of the pre-clamping cushion block, so that the pre-clamping cushion block linearly moves.

In some embodiments, the one end that the pre-clamping cushion is close to the mounting panel has offered screw hole and spacing hole in proper order along self axial, spacing hole with the coaxial setting of screw hole, the diameter of spacing hole is greater than the diameter of screw hole, lead screw thread adaptation the screw hole, the tip of lead screw penetrates spacing downthehole and be fixed with the spacing dish, the diameter of spacing dish is greater than the diameter of screw hole, control the range of movement of pre-clamping cushion to carry out spacingly to the removal extreme position of pre-clamping cushion, prevent that the pre-clamping cushion from coming off from the lead screw.

In some embodiments, a screw hand wheel is fixed to the end of the screw, which is far away from the limiting plate, through the mounting plate.

In some embodiments, a mounting seat is fixed on the interferometer workbench, the mounting seat is located at the rear of the three-jaw chuck, a screw is connected to the mounting seat in a threaded manner, the axis of the screw is parallel to the axis of the three-jaw chuck, one end of the screw is fixedly connected with the pre-clamping cushion block, and the pre-clamping cushion block is driven to move along the axis of the three-jaw chuck in a screw screwing manner.

In some embodiments, a rotating hand wheel is fixed to the end of the screw remote from the pre-clamping pad.

In some embodiments, the negative pressure mechanism comprises a negative pressure pump and a hose, the negative pressure pump is mounted on the interferometer workbench, one end of the hose is connected with a negative pressure port of the negative pressure pump, the other end of the hose is connected with the pre-clamping cushion block, and the hose is communicated with the annular cavity.

The beneficial effects of the utility model are as follows:

1. the negative pressure mechanism is used for generating negative pressure in the pre-clamping cushion block, placing the lens on the pre-clamping cushion block, absorbing the lens through the negative pressure generated by the negative pressure hole, enabling the lens not to fall under self gravity, and then positioning and clamping the lens through the claw of the three-claw chuck, so that the lens is automatically pre-limited, the situation that the lens is prevented from moving to cause collision and scratch is avoided, the manual supporting operation is omitted, the labor cost is reduced, and the lens is simpler and quicker to position and install.

2. The mounting position of the lens on the axial direction of the three-jaw chuck is changed by the pre-clamping cushion block, so that the detection surface of the lens protrudes out of the clamping jaw of the three-jaw chuck, the detection surface of the lens is in a full exposure state, the influence of the clamping jaw of the three-jaw chuck on the detection of the lens is reduced, the detection effect is improved, and meanwhile, the pre-clamping cushion block moves along the axial direction of the three-jaw chuck, so that the detection surfaces of the lenses with different thickness sizes can be in the full exposure state.

Drawings

FIG. 1 is a perspective view of one embodiment of a horizontal interferometer of the present utility model with an easily positionable lens;

FIG. 2 is a schematic diagram of the internal structure of a pre-clamping pad in a horizontal interferometer with an easy-to-position lens according to the present utility model;

FIG. 3 is a front view of a second embodiment of a horizontal interferometer of the present utility model with an easy-to-position lens;

FIG. 4 is a perspective view of a third embodiment of a horizontal interferometer of the present utility model with an easy-to-position lens;

in the figure, a 1-interferometer workbench, a 2-three-jaw chuck, a 3-pre-clamping cushion block, a 4-annular cavity, a 5-negative pressure hole, a 6-mounting plate, a 7-screw rod, an 8-sliding block, a 9-sliding groove, a 10-threaded hole, a 11-limiting hole, a 12-limiting plate, a 13-screw rod hand wheel, a 14-mounting seat, a 15-screw rod, a 16-rotating hand wheel, a 17-negative pressure pump and a 18-hose.

Detailed Description

The technical solution of the present utility model will be described in further detail with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following description.

The first embodiment is shown in fig. 1 to 4, a horizontal interferometer easy to position a lens comprises an interferometer workbench 1, wherein a three-jaw chuck 2 is arranged on the interferometer workbench 1, the axis of the three-jaw chuck 2 is horizontally arranged, a pre-clamping cushion block 3 is arranged on the inner ring of the three-jaw chuck 2, the pre-clamping cushion block 3 moves along the axial direction of the three-jaw chuck 2, the pre-clamping cushion block 3 is used for adjusting the positioning height of the lens to enable the detection surface of the lens to protrude the jaw of the three-jaw chuck 2, the pre-clamping cushion block 3 changes the installation position of the lens on the axial direction of the three-jaw chuck 2, the detection surface of the lens protrudes the jaw of the three-jaw chuck 2, the detection surface of the lens is in a full exposure state, the detection influence of the jaw of the three-jaw chuck 2 on the lens is reduced, the detection effect is improved, and meanwhile, the pre-clamping cushion block 3 moves along the axial direction of the three-jaw chuck 2, and the detection surfaces of lenses with different thickness sizes can be in the full exposure state; an annular cavity 4 is arranged in the pre-clamping cushion block 3, a plurality of negative pressure holes 5 communicated with the annular cavity 4 are formed in the front end face of the pre-clamping cushion block 3, a negative pressure mechanism is connected to the pre-clamping cushion block 3, negative pressure is generated in the pre-clamping cushion block 3 by the negative pressure mechanism, a lens is placed on the pre-clamping cushion block 3, the lens is adsorbed by the negative pressure generated by the negative pressure holes 5, the lens does not fall under self gravity, and then the lens is positioned and clamped by the clamping jaws of the three-jaw chuck 2, so that the lens is automatically pre-limited, the situation of collision and scratching caused by movement of the lens is prevented, the operation of manual supporting is omitted, the labor cost is reduced, and the positioning and mounting of the lens are simpler and faster; preferably, the negative pressure mechanism comprises a negative pressure pump 17 and a hose 18, the negative pressure pump 17 is arranged on the interferometer workbench 1, one end of the hose 18 is connected with a negative pressure port of the negative pressure pump 17, the other end of the hose 18 is connected with the pre-clamping cushion block 3, the hose 18 is communicated with the annular cavity 4, negative pressure is generated in the annular cavity 4 through the negative pressure pump 17, so that the lens is adsorbed, the lens is prevented from moving in the three-jaw chuck 2 in the clamping process, and the model and output power of the negative pressure pump 17 are reasonably selected, so that the adsorption force generated by the negative pressure pump 17 is not required to be too large, and the jaws of the three-jaw chuck 2 can still easily push the lens to be positioned and clamped under the condition that the lens is adsorbed.

In the second embodiment, as shown in fig. 1 and 3, a mounting plate 6 is fixed on the interferometer workbench 1, the mounting plate 6 is located at the rear of the three-jaw chuck 2, a screw rod 7 is rotationally connected to the mounting plate 6, the axis of the screw rod 7 is parallel to the axis of the three-jaw chuck 2, a pre-clamping cushion block 3 is in threaded sleeve connection with the screw rod 7, the pre-clamping cushion block 3 is slidably matched with the three-jaw chuck 2, a sliding block 8 is fixed on the outer side wall of the pre-clamping cushion block 3, a sliding groove 9 is formed in the inner wall of the three-jaw chuck 2, the sliding block 8 is slidably matched in the sliding groove 9, one end of the screw rod 7, far away from a limiting disc 12, is fixedly provided with a screw rod hand wheel 13 through the mounting plate 6, the screw rod hand wheel 13 is rotated, the screw rod 7 is driven to rotate by rotating the screw rod hand wheel 13, the pre-clamping cushion block 3 is limited in the axial direction of the screw rod 7 by the matching of the sliding block 8 and the sliding groove 9, so that the position of the pre-clamping cushion block 3 in the axial direction of the three-jaw chuck 2 is adjusted, the pre-clamping cushion block 3 is adapted to the thickness of a lens, the lens is placed at the center position of the three-jaw chuck 2 by a manual or using a mechanical arm after the adjustment is completed, the lens is approximately placed at the center position of the three-jaw chuck 2, and then the lens is contacted with the lens 3 by the negative pressure pump 17.

Further, as shown in fig. 2, the screw hole 10 and the limiting hole 11 are sequentially formed in the axial direction of one end, close to the mounting plate 6, of the pre-clamping cushion block 3, the limiting hole 11 is coaxially arranged with the screw hole 10, the diameter of the limiting hole 11 is larger than that of the screw hole 10, the screw rod 7 is in threaded fit with the screw hole 10, the end part of the screw rod 7 penetrates into the limiting hole 11 and is fixedly provided with the limiting disc 12, the diameter of the limiting disc 12 is larger than that of the screw hole 10, the movement range of the pre-clamping cushion block 3 is controlled, the movement limit position of the pre-clamping cushion block 3 is limited, when the limiting disc 12 contacts a step formed by the screw hole 10 and the limiting hole 11, the pre-clamping cushion block 3 moves to the limit position, and at the moment, the front end face of the pre-clamping cushion block 3 is flush with the front end face of a jaw of the three-jaw chuck 2, and the pre-clamping cushion block 3 is effectively prevented from falling off from the screw rod 7.

In the third embodiment, as shown in fig. 4, an installation seat 14 is fixed on the interferometer workbench 1, the installation seat 14 is located at the rear of the three-jaw chuck 2, a screw 15 is connected to the installation seat 14 in a threaded manner, the axis of the screw 15 is parallel to the axis of the three-jaw chuck 2, one end of the screw 15 is fixedly connected with the pre-clamping cushion block 3, one end of the screw 15, which is far away from the pre-clamping cushion block 3, is fixed with a rotary hand wheel 16, the rotary hand wheel 16 drives the screw 15 to do precession motion, the pre-clamping cushion block 3 is driven to move along the axis of the three-jaw chuck 2, and the initial position of the pre-clamping cushion block 3 is adjusted to enable the detection surface of the lens to be in a completely exposed state.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model; and those of ordinary skill in the art will appreciate that the benefits achieved by the present utility model are merely better than those achieved by the current embodiments of the prior art in certain circumstances and are not intended to be the most excellent uses directly in the industry.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. The utility model provides a horizontal interferometer of easy location lens, includes interferometer workstation (1), be provided with three-jaw chuck (2) on interferometer workstation (1), the axis level of three-jaw chuck (2) sets up, a serial communication port, the inner circle of three-jaw chuck (2) is provided with pre-clamp cushion (3), pre-clamp cushion (3) are followed the axial displacement of three-jaw chuck (2), pre-clamp cushion (3) are used for adjusting the locating height of lens and make the detection surface of lens outstanding the jack catch of three-jaw chuck (2), be provided with annular cavity (4) in pre-clamp cushion (3), a plurality of with communicating negative pressure hole (5) of annular cavity (4) have been seted up to the preceding terminal surface of pre-clamp cushion (3), pre-clamp cushion (3) are connected with negative pressure mechanism.

2. The horizontal interferometer easy to position lenses according to claim 1, wherein a mounting plate (6) is fixed on the interferometer workbench (1), the mounting plate (6) is positioned behind the three-jaw chuck (2), a screw (7) is rotationally connected to the mounting plate (6), the axis of the screw (7) is parallel to the axis of the three-jaw chuck (2), the pre-clamping cushion block (3) is in threaded fit with the screw (7), and the pre-clamping cushion block (3) is in sliding fit with the three-jaw chuck (2).

3. The horizontal interferometer easy to position lenses according to claim 2, wherein a slide block (8) is fixed on the outer side wall of the pre-clamping cushion block (3), a slide groove (9) is formed in the inner wall of the three-jaw chuck (2), and the slide block (8) is slidably fit in the slide groove (9).

4. A horizontal interferometer for easily positioning a lens according to claim 3, characterized in that, screw hole (10) and spacing hole (11) have been seted up in proper order along self axial to the one end that is close to mounting panel (6) in advance to clamp cushion (3), spacing hole (11) with screw hole (10) coaxial setting, the diameter of spacing hole (11) is greater than screw hole (10) diameter, screw (7) screw thread adaptation screw hole (10), the tip of screw (7) penetrates in spacing hole (11) and be fixed with spacing dish (12), the diameter of spacing dish (12) is greater than screw hole (10) diameter.

5. A horizontal interferometer for easy positioning of lenses according to claim 4, in which the end of the screw (7) remote from the limit plate (12) is fixed with a screw hand wheel (13) through the mounting plate (6).

6. The horizontal interferometer easy to position lenses according to claim 1, wherein a mounting seat (14) is fixed on the interferometer workbench (1), the mounting seat (14) is positioned behind the three-jaw chuck (2), a screw (15) is connected to the mounting seat (14) in a threaded manner, the axis of the screw (15) is parallel to the axis of the three-jaw chuck (2), and one end of the screw (15) is fixedly connected with the pre-clamping cushion block (3).

7. A horizontal interferometer for easy positioning of lenses according to claim 6, in which the end of the screw (15) remote from the pre-clamping pad (3) is fixed with a rotating hand wheel (16).

8. The horizontal interferometer easy to position lenses according to claim 1, wherein the negative pressure mechanism comprises a negative pressure pump (17) and a hose (18), the negative pressure pump (17) is installed on the interferometer workbench (1), one end of the hose (18) is connected with a negative pressure port of the negative pressure pump (17), the other end is connected with the pre-clamping cushion block (3), and the hose (18) is communicated with the annular cavity (4).