CN210081371U

CN210081371U - Optical lens piece grinds anchor clamps

Info

Publication number: CN210081371U
Application number: CN201920687862.4U
Authority: CN
Inventors: 沈炜; 朱虹; 忻峰
Original assignee: Deqing Rui Rui Optical Technology Co Ltd
Current assignee: Deqing Rui Rui Optical Technology Co Ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-02-18
Anticipated expiration: 2029-05-14

Abstract

The utility model aims to solve the technical problem that an optical lens piece grinds anchor clamps is provided to improve optical lens piece's clamping precision, and then improve optical lens piece's grinding precision. An optical lens piece grinds anchor clamps, be provided with the anchor clamps body on the anchor clamps platform, set up the location chamber on the anchor clamps body, be equipped with the lantern ring at anchor clamps body overcoat, be provided with the slide bar on the anchor clamps body, be provided with the track on the lantern ring, the rotatory certain angle track of the lantern ring promotes the slide bar and removes to press from both sides the optical lens piece that is located the location intracavity. Compared with the prior art, the scheme has the advantages that the positioning accuracy of the optical lens is high, and the clamping accuracy of the optical lens is further improved. The lantern ring is matched with the sliding rod to position the optical lens, so that the optical lens is very convenient to clamp and operate, and the clamping efficiency of the optical lens is improved.

Description

Optical lens piece grinds anchor clamps

Technical Field

The utility model relates to an optical lens piece production facility accessory especially relates to an optical lens piece grinds anchor clamps, belongs to the industrial automation field.

Background

The optical lens is a common test tool in an optical test, and in order to ensure the accuracy of the test, the requirement on the machining precision of the optical lens is generally high, and after a lens blank is roughly machined, the roughly machined optical lens needs to be ground. The optical lens needs to be clamped during grinding treatment so as to be ground by matching with the grinding head.

The clamp for clamping the optical lens in the prior art is unreasonable, and particularly for clamping the concave spherical optical lens, the concave positioning optical lens matched with the optical lens is only adopted, so that the optical lens can move in a concave position in the grinding process to cause dislocation of the optical lens, the grinding of the optical lens is not facilitated, and the grinding precision of the optical lens is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an optical lens piece grinds anchor clamps is provided to improve optical lens piece's clamping precision, and then improve optical lens piece's grinding precision.

The utility model provides a technical scheme that above-mentioned technical problem adopted is:

an optical lens grinding clamp is used for positioning an optical lens with a concave spherical surface and comprises a clamp platform, wherein a clamp body is arranged on the clamp platform, a positioning cavity for placing a lens is arranged on the clamp body, a clamping mechanism for clamping the lens in the positioning cavity is arranged on the clamp body, the clamping mechanism comprises a sliding rod which is connected to the clamp body in a sliding mode and a sleeve ring which is sleeved on the clamp body and drives the sliding rod to move towards the center direction of the positioning cavity so as to clamp the lens, a sliding hole which is matched with the sliding rod is arranged on the clamp body and communicated with the positioning cavity, a buffer plate is arranged on one side, in contact with the lens, of the sliding rod, a track which pushes the sliding rod to clamp the lens when the sleeve ring rotates relative to the clamp body is arranged on the sleeve ring, one end of the sliding rod abuts against the track, the other end and the buffer board fixed connection of slide bar the cover is equipped with the promotion on the slide bar is contradicted orbital elastic component still be provided with the drive on the anchor clamps platform the lantern ring for the rotatory actuating mechanism of anchor clamps body.

An optical lens piece grinds anchor clamps, be provided with the anchor clamps body on the anchor clamps platform, set up the location chamber on the anchor clamps body, be equipped with the lantern ring at anchor clamps body overcoat, be provided with the slide bar on the anchor clamps body, be provided with the track on the lantern ring, the rotatory certain angle track of the lantern ring promotes the slide bar and removes to press from both sides the optical lens piece that is located the location intracavity. Compared with the prior art, the scheme has the advantages that the positioning accuracy of the optical lens is high, and the clamping accuracy of the optical lens is further improved. The lantern ring is matched with the sliding rod to position the optical lens, so that the optical lens is very convenient to clamp and operate, and the clamping efficiency of the optical lens is improved.

Preferably, the driving mechanism includes a prime mover for outputting linear motion, a rack driven by the prime mover to reciprocate is slidably connected to the clamp platform, a gear ring engaged with the rack is fixed to the collar, a buffer is provided between the prime mover and the rack, one end of the buffer is fixedly connected to the prime mover, and the other end of the buffer is fixedly connected to the rack.

The buffer is mainly used for preventing the prime motor from driving the rack to move too far, so that the clamping of the optical lens is over-tight and the optical lens is damaged, and the performance of the optical lens grinding clamp is optimized.

Preferably, be provided with on the anchor clamps platform with lantern ring complex cooperation groove, be provided with on the lantern ring with cooperation groove complex cooperation piece, cooperation piece equipartition in on the circumference of the lantern ring, and, cooperation piece with the lantern ring formula structure as an organic whole.

The arrangement of the matching groove and the matching block ensures that the lantern ring is firmly positioned and flexibly rotates, and the stability of the optical lens grinding clamp is improved.

Preferably, the fixture platform is further provided with a guide groove for guiding the rack, the rack is provided with a guide post matched with the guide groove, the guide post and the rack are of an integrated structure, and the guide post is provided with a rolling bearing for reducing friction force between the guide post and the guide groove.

The rack is flexible to move, the displacement precision is high, and the precision of the optical lens grinding clamp is improved.

Preferably, the track is recessed into the collar along the diameter direction of the collar, a roller for reducing the friction force between the slide bar and the track is arranged on the slide bar, the roller is rotatably connected to the slide bar through a wheel shaft, and a part of the roller is located in the track.

The track is recessed into the lantern ring, can play the support function to the slide bar, has improved the stability of slide bar removal in-process. The arrangement of the roller reduces the abrasion of the slide bar and the track, and prolongs the service life of the track and the slide bar.

Preferably, the clamping mechanism further comprises a controller for controlling the working state of the prime mover, a pressure sensor for detecting the pressure between the prime mover and the buffer is arranged between the prime mover and the buffer, the pressure sensor is in communication with the controller, and the controller controls the working state of the prime mover according to the parameter detected by the pressure sensor.

The arrangement of the pressure sensor enables the clamping force of the optical lens to be effectively monitored, the optical lens is effectively prevented from being clamped too loosely or too tightly, and the performance of the optical lens grinding clamp is optimized.

Compared with the prior art, the utility model have following advantage and effect:

1. the lantern ring and the sliding rods are arranged to conveniently clamp the optical lens, and all the sliding rods move synchronously, so that the clamping precision of the optical lens is improved, and the clamping efficiency of the optical lens is improved.

2. The buffer plate prevents the slide bar from directly contacting with the optical lens, thereby protecting the optical lens and optimizing the performance of the optical lens grinding clamp.

3. The driving mechanism enables the sliding rod to automatically clamp the optical lens, and the performance of the optical lens grinding clamp is optimized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of a fixture platform.

Fig. 3 is a schematic view of the junction of the rack and the clamp platform.

Description of reference numerals:

1. the clamp comprises a clamp platform, 2, a clamp body, 3, a positioning cavity, 4, a sliding rod, 5, a sleeve ring, 6, a buffer plate, 7, a track, 8, an elastic part, 9, a prime motor, 10, a rack, 11, a gear ring, 12, a buffer, 13, a matching groove, 14, a guide groove, 15, a guide column, 16, a roller, 17, a wheel shaft, 18 and a pressure sensor.

Detailed Description

The present invention will be described in further detail with reference to the following examples, which are illustrative of the present invention and are not intended to limit the present invention.

Example 1

An optical lens grinding fixture is used for positioning a concave spherical optical lens to match a grinding head to grind the concave spherical optical lens. The clamp is suitable for clamping the concave spherical optical lens or the optical lens with the similar shape.

Referring to fig. 1, an optical lens polishing jig includes a jig platform 1, and the jig platform 1 is a structure formed of a plate material to support a related structure located on the jig platform 1. The optical lens clamp is characterized in that a clamp body 2 is arranged on the clamp platform 1, the clamp body 2 is cylindrical, the clamp body 2 can be fixed on the clamp platform 1 through screws, a positioning cavity 3 for placing a lens is formed in the clamp body 2, the positioning cavity 3 is matched with the optical lens in shape, and a clamping mechanism for clamping the lens in the positioning cavity 3 is arranged on the clamp body 2.

As shown in fig. 1, the clamping mechanism includes a sliding rod 4 slidably connected to the clamp body 2, and a collar 5 sleeved outside the clamp body 2 and driving the sliding rod 4 to move toward the center of the positioning cavity 3 to clamp the lens, that is, the sliding rod 4 is disposed along the diameter direction of the clamp body 2 and slides along the diameter direction of the clamp body 2, the collar 5 is circular, the collar 5 and the clamp body 2 are coaxially disposed, the clamp body 2 is provided with a sliding hole matched with the sliding rod 4, the sliding hole is communicated with the positioning cavity 3, one side of the sliding rod 4 contacting the lens is provided with a buffer plate 6, the buffer plate 6 can be a rubber plate or other soft plate material without damaging the optical lens, the collar 5 is provided with a track 7 for pushing the sliding rod 4 to clamp the lens when the collar 5 rotates relative to the clamp body 2, contradict the one end of slide bar 4 track 7, the other end and the buffer board 6 fixed connection of slide bar 4, slide bar 4 can be fixed in together through the bonding mode with buffer board 6 the cover is equipped with the promotion on slide bar 4 the slide bar 4 is contradicted track 7's elastic component 8 still be provided with the drive on the anchor clamps platform 1 the lantern ring 5 for 2 rotatory actuating mechanism of anchor clamps body.

Specifically, when the optical lens is clamped, the optical lens is first placed in the positioning cavity 3, and at this time, the optical lens is only located in the positioning cavity 3 and does not have positioning capability, for example, the optical lens can rotate in the positioning cavity 3.

As shown in fig. 1, after the optical lens is placed in the positioning cavity 3, the driving mechanism drives the lantern ring 5 to rotate by a certain angle, the lantern ring 5 rotates by a certain angle, and at this time, the rail 7 enables the sliding rod 4 to slide along the diameter direction of the clamp body 2, so as to drive the buffer plate 6 to abut against the optical lens located in the positioning cavity 3 and clamp the optical lens. The track 7 should have a curved surface for pushing the sliding rod 4 to slide, which curved surface pushes the sliding rod 4 to move toward the center of the clamp body 2 when the collar 5 rotates in one direction, and which curved surface disengages from the sliding rod 4 when the collar 5 rotates in the opposite direction, i.e. releases the optical lens.

The sliding rod 4 should have the ability of automatic resetting to facilitate the clamping of the optical lens, and when the finger ring 5 rotates to make the sliding rod 4 separate from the track 7 during the automatic resetting, the automatic resetting ability makes the sliding rod 4 move and makes the sliding rod 4 always abut against the track 7.

The mechanism for achieving the automatic reset of the sliding rod 4 is an elastic member 8, and the elastic member 8 may be a spring or other structures capable of generating elastic deformation capacity, such as but not limited to a spring plate and the like. Elastic component 8 should be located outside location chamber 3 to prevent that elastic component 8 from influencing the location ability in location chamber 3, the lateral wall of anchor clamps body 2 can be contradicted to the one end of elastic component 8, and the other end of elastic component 8 can be fixed in on the slide bar 4. The fixing manner of the elastic element 8 and the sliding rod 4 can be welding or bonding or detachable connection, and is not limited in particular.

Compared with the prior art, the optical lens is firm in positioning, high in positioning accuracy and convenient to clamp.

Example 2

This embodiment describes a possible configuration of the drive mechanism in conjunction with embodiment 1.

As shown in fig. 1, the driving mechanism includes a prime mover 9 for outputting a linear motion, a rack 10 driven by the prime mover 9 to reciprocate is slidably connected to the jig platform 1, a ring gear 11 engaged with the rack 10 is fixed to the collar 5, a damper 12 is provided between the prime mover 9 and the rack 10, one end of the damper 12 is fixedly connected to the prime mover 9, and the other end of the damper 12 is fixedly connected to the rack 10.

The buffer 12 is a structure having a certain elastic deformation capability, and may be a spring or a rubber block. Its function lies in controlling the clamp force that buffer plate 6 pressed from both sides tight optical lens, for example, when buffer plate 6 pressed from both sides tight optical lens dynamics too big, buffer 12 produced certain elastic deformation to offset the certain displacement volume of rack 10, thereby play the effect of control clamp force size.

When the clamping force of the optical lens is too small, the stroke of the rack 10 is determined by the stroke of the rack 10, the stroke of the rack 10 is adjusted at the initial design stage, and the stroke of the rack 10 is not needed to be adjusted in the actual use process, so that the problem that the clamping force is too small does not exist.

The prime mover 9 can also output a rotational motion to directly rotate the collar 5, and the prime mover 9 in this embodiment should have a self-locking capability. In addition, when the scheme is adopted, the rotating angle of the lantern ring 5 is not too large, so that the scheme requires that the prime motor 9 has high indexing precision, the price of the prime motor 9 with the function is higher, and the scheme can be reasonably selected by a designer according to the use requirement.

As shown in fig. 1 and 2, a matching groove 13 matched with the sleeve ring 5 is arranged on the clamp platform 1, matching blocks matched with the matching groove 13 are arranged on the sleeve ring 5, the matching blocks are uniformly distributed on the circumference of the sleeve ring 5, and the matching blocks and the sleeve ring 5 are of an integrated structure.

The matching grooves 13 can be ring grooves, or the matching grooves 13 can also be a plurality of arc-shaped grooves, and the centers of the arc-shaped grooves are overlapped. The detailed structure of the fitting groove 13 is not described in detail, and can be reasonably designed by those skilled in the art according to the needs.

Specifically, in the scheme, the motor 9 drives the rack 10 to do linear reciprocating motion, and the rack 10 is meshed with the gear ring 11 on the lantern ring 5 so as to convert the linear motion of the motor 9 into the rotary motion of the lantern ring 5, thereby realizing the clamping action of the sliding rod 4.

The gear ring 11 and the lantern ring 5 can be of an integrated structure, the gear ring 11 can also be fixed on the lantern ring 5 in a detachable connection mode, and the lantern ring 5 and the gear ring 11 synchronously rotate.

In order to further improve the clamping precision of the optical lens clamped by the buffer plate 6, the clamping mechanism further comprises a controller for controlling the working state of the prime mover 9, a pressure sensor 18 for detecting the pressure between the prime mover 9 and the buffer 12 is arranged between the prime mover 9 and the buffer 12, the pressure sensor 18 is communicated with the controller, and the controller controls the working state of the prime mover 9 according to the parameter detected by the pressure sensor 18.

The pressure sensor 18 and controller are conventional in the art and are readily available commercially, and the specific construction thereof will not be described in detail.

The pressure sensor 18 is mainly used for detecting the pressure applied to the bumper 12 to indirectly measure the clamping force applied to the optical lens, and when the clamping force is too loose or too tight, the pressure sensor 18 can transmit the signal to the controller, and the controller controls the working state of the prime mover 9.

The prime mover 9 may be a linear servo motor or other device that outputs linear motion.

Example 3

This embodiment describes one possible assembly of the rack 10 in combination with any of the above embodiments.

As shown in fig. 1, 2 and 3, the jig platform 1 is further provided with a guide groove 14 for guiding the rack 10, the rack 10 is provided with a guide post 15 engaged with the guide groove 14, the guide post 15 and the rack 10 are integrated, and the guide post 15 is provided with a rolling bearing for reducing friction between the guide post 15 and the guide groove 14.

The rack 10 can be slidably connected to the clamp platform 1 by other means, for example, a part of the rack 10 can be located in the guide groove 14 to guide the rack 10 by the guide groove 14, and the specific assembling manner of the rack 10 is not limited, and can be freely selected by those skilled in the art.

Example 4

This embodiment describes a possible solution of the track 7 in combination with any of the above embodiments.

As shown in fig. 1, the track 7 is recessed into the collar 5 along the diameter direction of the collar 5, a roller 16 for reducing the friction force between the slide bar 4 and the track 7 is arranged on the slide bar 4, the roller 16 is rotatably connected to the slide bar 4 through a wheel shaft 17, and a part of the roller 16 is positioned in the track 7.

The roller 16 may be a rolling bearing.

The rail 7 may also protrude from the collar 5 along the diameter direction of the collar 5, however, when the rail 7 protrudes from the collar 5, the rail 7 has no supporting capability for the slide rod 4, and at this time, the slide rod 4 is positioned only by the slide hole, and the displacement precision of the slide rod 4 is low.

In addition, it should be noted that the specific embodiments described in the present specification may differ in the shape of the components, the names of the components, and the like. All equivalent or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides an optical lens grinds anchor clamps for fix a position concave spherical surface optical lens, includes anchor clamps platform (1) be provided with anchor clamps body (2) on anchor clamps platform (1) be provided with location chamber (3) of placing the lens on anchor clamps body (2), its characterized in that: the clamp is characterized in that a clamping mechanism for clamping a lens in the positioning cavity (3) is arranged on the clamp body (2), the clamping mechanism comprises a sliding rod (4) connected to the clamp body (2) in a sliding manner and a sleeve which is sleeved on the clamp body (2) and drives the sliding rod (4) to move towards the center direction of the positioning cavity (3) so as to clamp the lens, a lantern ring (5) matched with the sliding rod (4) is arranged on the clamp body (2), the sliding hole is communicated with the positioning cavity (3), a buffer plate (6) is arranged on one side of the sliding rod (4) contacting with the lens, a track (7) for pushing the sliding rod (4) to clamp the lens when the lantern ring (5) rotates relative to the clamp body (2) is arranged on the lantern ring (5), one end of the sliding rod (4) is abutted against the track (7), and the other end of the sliding rod (4) is fixedly connected with the buffer plate (6), the clamp is characterized in that the sliding rod (4) is sleeved with an elastic piece (8) for pushing the sliding rod (4) to abut against the track (7), and a driving mechanism for driving the lantern ring (5) to rotate relative to the clamp body (2) is further arranged on the clamp platform (1).

2. The optical lens polishing jig according to claim 1, wherein: actuating mechanism is including output linear motion's prime mover (9) sliding connection has by on anchor clamps platform (1) prime mover (9) drive reciprocating motion's rack (10) be fixed with on the lantern ring (5) with gear ring (11) of rack (10) meshing, prime mover (9) with be provided with buffer (12) between rack (10), the one end of buffer (12) with prime mover (9) fixed connection, the other end of buffer (12) with rack (10) fixed connection.

3. An optical lens lapping fixture as claimed in claim 2, wherein: be provided with on anchor clamps platform (1) with the lantern ring (5) complex cooperation groove (13), be provided with on the lantern ring (5) with cooperation groove (13) complex cooperation piece, the cooperation piece equipartition in on the circumference of the lantern ring (5), and, the cooperation piece with the lantern ring (5) formula structure as an organic whole.

4. An optical lens lapping fixture as claimed in claim 2 or 3, wherein: the fixture platform is characterized in that a guide groove (14) for guiding the rack (10) is further formed in the fixture platform (1), a guide post (15) matched with the guide groove (14) is arranged on the rack (10), the guide post (15) and the rack (10) are of an integrated structure, and a rolling bearing for reducing friction force between the guide post (15) and the guide groove (14) is arranged on the guide post (15).

5. The optical lens polishing jig according to claim 1, wherein: the track (7) is recessed into the lantern ring (5) along the diameter direction of the lantern ring (5), a roller (16) for reducing the friction force between the slide bar (4) and the track (7) is arranged on the slide bar (4), the roller (16) is rotatably connected onto the slide bar (4) through a wheel shaft (17), and one part of the roller (16) is positioned in the track (7).

6. An optical lens lapping fixture as claimed in claim 2, wherein: the clamping mechanism further comprises a controller for controlling the working state of the prime mover (9), a pressure sensor (18) for detecting the pressure between the prime mover (9) and the buffer (12) is arranged between the prime mover (9) and the buffer (12), the pressure sensor (18) is communicated with the controller, and the controller controls the working state of the prime mover (9) according to the parameter detected by the pressure sensor (18).