CN209803434U

CN209803434U - Lens locking device

Info

Publication number: CN209803434U
Application number: CN201920601038.2U
Authority: CN
Inventors: 曾晨; 袁超
Original assignee: JIANGXI LIANCHUANG ELECTRONICS CO Ltd
Current assignee: JIANGXI LIANCHUANG ELECTRONICS CO Ltd; Jiangxi Lianchuang Electronic Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2019-12-17
Anticipated expiration: 2029-04-28

Abstract

The utility model provides a lens locking device, which comprises a bracket; the lens fixing mechanism is arranged on the bracket and can slide on the bracket along a first direction, and the lens fixing mechanism is used for fixing the lens when in locking; the microscope base fixing mechanism is arranged on the bracket and is positioned in the first direction, and the microscope base fixing mechanism is used for fixing the microscope base during locking; and the rotary driver is arranged on the bracket and used for driving the lens base fixed on the lens base fixing mechanism to rotate when the lens base is locked. The utility model provides a device is paid to camera lens lock drives microscope base autogiration through rotary actuator, can guarantee the microscope base and the camera lens uniformity of closing soon to guarantee the uniformity of assembly effect. Meanwhile, a sliding type centering guide structure is adopted, so that the centering performance of the lens base and the lens sleeve is guaranteed, and the reliability of assembly is integrally improved.

Description

Lens locking device

Technical Field

The utility model relates to a camera lens assembly technical field, in particular to device is paid to camera lens lock.

Background

the lens is an optical component for generating images, and is widely used in terminals such as video cameras, digital cameras, electronic monitoring devices, mobile phones, and the like. In recent years, with the increasing popularity and the upgrading of terminal devices, the sales volume of shots is also increasing year by year.

as shown in fig. 1, in the production process of the lens, it is usually necessary to lock and mount the lens 1 on the lens holder 2 to form a lens module. The lens 1 is provided with an external thread 101, an internal thread 201 is arranged in a central hole of the lens base 2, during assembly, the lens base 2 is sleeved outside the lens 1, and then the lens base 2 is rotated to enable the external thread 101 to be in threaded connection with the internal thread 201, so that the lens 1 is locked on the lens base 2.

In the prior art, the locking assembly of the lens and the lens base is manually completed at present, and the consistency of screwing the lens and the lens cannot be ensured, so that the consistency of the assembly effect cannot be ensured. Meanwhile, the lens seat is sleeved outside the lens manually, the centering precision is low, the situation that the thread structure fails due to forced assembly easily occurs under the condition that the lens seat is not centered, and the assembling reliability is low.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a device is paid to camera lens lock to solve among the prior art technical problem that the assembly reliability of camera lens and microscope base is low.

According to the utility model discloses among the embodiment a device is paid to camera lens lock, include:

A support;

the lens fixing mechanism is arranged on the bracket and can slide on the bracket along a first direction, and the lens fixing mechanism is used for fixing the lens when in locking;

The microscope base fixing mechanism is arranged on the bracket and is positioned in the first direction, and the microscope base fixing mechanism is used for fixing the microscope base during locking; and

And the rotary driver is arranged on the bracket and used for driving the lens base fixed on the lens base fixing mechanism to rotate when the lens base is locked.

When the lens locking device is locked, the lens can be fixed on the lens fixing mechanism, the lens base is fixed on the lens base fixing mechanism, then the lens fixing mechanism is pushed to move towards the lens base fixing mechanism, so that the lens base is sleeved outside the lens, and then the rotary driver is started to drive the lens base to rotate, so that the lens is locked on the lens base. Therefore, the lens locking device drives the lens base to rotate automatically through the rotary driver, and can ensure the consistency of the lens base and the lens in a rotating mode, thereby ensuring the consistency of the assembling effect. Meanwhile, a sliding type centering guide structure is adopted, so that the centering performance of the lens base and the lens sleeve is guaranteed, and the reliability of assembly is integrally improved.

Further, the mirror base fixing mechanism adsorbs and fixes the mirror base by generating negative pressure.

Further, the mirror base fixing mechanism includes:

the connecting sleeve is arranged on the bracket, a closed cavity is enclosed in the connecting sleeve, a first through hole communicated with the closed cavity is formed in the side wall of the connecting sleeve, and the first through hole is connected with a negative pressure generating device;

the connecting shaft penetrates through the connecting sleeve and is rotatably connected with the connecting sleeve, a hollow part is arranged inside the connecting shaft, a second through hole communicated with the hollow part is formed in the side wall of the connecting shaft, and the second through hole is communicated with the closed cavity; and

The connecting block, it is fixed in one of connecting axle is served, and be equipped with on it be used for with the attached face of terminal surface of microscope base, be equipped with the absorption hole on the attached face, the absorption hole intercommunication cavity.

Furthermore, the rotary driver is an electric screwdriver, and the tail end of the output shaft is connected with one end, far away from the connecting block, of the connecting shaft.

furthermore, a plurality of adsorption holes are uniformly distributed on the attaching surface, and the diameters of the adsorption holes are smaller than that of the hollow holes.

Further, be equipped with first lug on the terminal surface of connecting axle, the cavity runs through first lug, the connecting block dorsad one side of attached face be equipped with first lug complex recess, the absorption hole intercommunication the recess, first lug card go into in the recess.

furthermore, a second bump is arranged on the attaching surface and used for being clamped with the central through hole of the lens base.

Furthermore, the support comprises a base and three supporting pieces arranged on the top of the base, and the lens fixing mechanism, the lens base fixing mechanism and the rotary driver are respectively fixed on the support through one supporting piece.

Further, the lens fixing mechanism, the lens holder fixing mechanism and the rotary driver are sequentially arranged on the same straight line.

further, camera lens fixed establishment includes jack catch and cover and establishes locking sleeve on the jack catch, locking sleeve with the jack catch spiro union, just the jack catch with locking sleeve's end adopts the toper cooperation, in order to control through the rotating locking sleeve's mode the jack catch shrink or flare-out.

Drawings

FIG. 1 is an exploded view of a lens barrel and lens holder according to the prior art;

Fig. 2 is a perspective assembly view of the lens locking device according to the first embodiment of the present invention;

fig. 3 is an exploded view of the lens holder fixing mechanism according to the first embodiment of the present invention;

Fig. 4 is a perspective view of a connecting block according to a first embodiment of the present invention;

Fig. 5 is a perspective view of the connection block according to the first embodiment of the present invention at another angle;

fig. 6 is a diagram illustrating a state of the lens locking device according to the first embodiment of the present invention;

Fig. 7 is a perspective assembly view of a lens locking device according to a second embodiment of the present invention;

fig. 8 is an enlarged view taken at I in fig. 7.

Description of the main element symbols:

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

in order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 2 to 5, a catadioptric lens according to a first embodiment of the present invention is shown, which includes a frame 10, and a lens fixing mechanism 20, a lens holder fixing mechanism 30 and a rotary driver 40 disposed on the frame 10, wherein:

The support 10 includes a base 11 and three supporting members 12 disposed on the top of the base 11, and the lens fixing mechanism 20, the lens holder fixing mechanism 30 and the rotary actuator 40 are respectively fixed on the support 10 through one of the supporting members 12. Specifically, the lens fixing mechanism 20, the lens holder fixing mechanism 30, and the rotary actuator 40 are sequentially arranged on the same straight line.

further, a support member 12 for fixing the lens fixing mechanism 20 is slidably coupled to the base 11 so that the lens fixing mechanism 20 can slide on the mount 10 in a first direction a, and the mount fixing mechanism 30 is in the first direction a so that the lens fixing mechanism 20 can move toward the mount fixing mechanism 30.

the lens fixing mechanism 20 is used for fixing the lens 1 when being locked, in this embodiment, the lens fixing mechanism 20 comprises a claw 21 and a locking sleeve 22 which is sleeved on the claw 21, the locking sleeve 22 is in threaded connection with the claw 21, the claw 21 and the tail end of the locking sleeve 22 are in tapered fit, so that the claw 21 is controlled to contract or expand outwards by rotating the locking sleeve 22 to clamp or release the lens 1 placed in the claw 21.

The lens base fixing mechanism 30 is used for fixing the lens base 2 during locking, and in the present embodiment, the lens base fixing mechanism 30 fixes the lens base 2 by generating negative pressure. Specifically, the lens holder fixing mechanism 30 includes a connecting sleeve 31, a connecting shaft 32 and a connecting block 33, the connecting sleeve 31 is fixedly disposed on the corresponding supporting member 12, a closed cavity is enclosed inside the connecting sleeve 31, a first through hole 311 communicating with the closed cavity is disposed on a side wall of the connecting sleeve 31, and the first through hole 311 is connected to a negative pressure generating device (not shown) through a pipeline. The connecting shaft 32 penetrates through the connecting sleeve 31 and is rotatably connected with the connecting sleeve 31 through a bearing (not shown), a hollow 321 is arranged inside the connecting shaft 32, a second through hole 322 communicated with the hollow 321 is formed in the side wall of the connecting shaft, and the second through hole 322 is communicated with the closed cavity. The connecting block 33 is fixed on one end of the connecting shaft 32, and is provided with an attaching surface 331 used for attaching the end surface of the microscope base 2, the attaching surface 331 is provided with an adsorption hole 332, and the adsorption hole 332 is communicated with the hollow 321. In a specific implementation, the negative pressure generating device may be any one of an air pump, a blower, and the like.

Preferably, the attaching surface 331 is provided with a plurality of uniformly distributed adsorption holes 332, the diameter of the adsorption holes 332 is smaller than that of the hollow 321, and the adsorption force can be provided by using small holes.

In addition, the end face of the connecting shaft 32 is provided with a first protruding block 323, the hollow portion 321 penetrates through the first protruding block 323, one side of the connecting block 33, which faces away from the attaching face 331, is provided with a groove 333 matched with the first protruding block 323, the adsorption hole 332 is communicated with the groove 333, and the first protruding block 323 is clamped in the groove 333. Meanwhile, the attaching surface 331 is provided with a second bump 334, the second bump 334 is used for being clamped with the central through hole of the lens holder 2, namely, when the lens holder is fixed, the central through hole of the lens holder 2 is clamped on the second bump 334, and then is adsorbed and fixed by the adsorption hole 332. The central through hole of the mirror base 2 is square with the part of the second bump 334 joint, and the second bump 334 is set to be a corresponding square structure.

it should be noted that the first through hole 311, the closed cavity, the second through hole 322, the hollow 321, the groove 333, and the suction hole 332 form an air passage, and the negative pressure generating device will make the suction hole 332 generate suction force through the air passage, so that the end surface of the lens holder 2 is tightly sucked on the attaching surface 331, thereby sucking and fixing the lens holder 2 on the connecting block 33. In addition, sealing structures such as sealing rings, rubber pads and thread tapes can be arranged at the connecting parts among the parts so as to improve the air flue tightness and improve the adsorption effect.

the rotary driver 40 is used for driving the lens base 2 fixed on the lens base fixing mechanism 30 to rotate when being locked, in this embodiment, the rotary driver 40 is an electric screwdriver, and the tail end of the output shaft is connected with one end of the connecting shaft 32 far away from the connecting block 33, so that when the rotary driver 40 rotates, the connecting shaft 32 is driven to rotate, the connecting block 33 is driven to rotate, and the lens base 2 fixed on the connecting block 33 in an adsorption mode is driven to rotate.

It can be understood that the advantage of using an electric screwdriver to rotate the lens holder 2 is that: when the lens base 2 and the lens 1 are screwed in place, the electric screwdriver outputs torque to a set torque, and stops rotating, so that the phenomenon that the screw is not in place or is excessively screwed can be avoided, and the consistency of the screw of the lens base 2 and the lens 1 is better ensured. In other embodiments, a direct drive motor may be used to drive the mirror base 2 to rotate.

referring to fig. 6, the lens locking device will be described in detail with reference to specific use processes:

When the lens holder is locked, one end of the lens 1 can be placed into the claw 21, and the locking sleeve 22 is screwed to drive the claw 21 to contract, so as to clamp and fix the lens 1, then the central through hole of the lens holder 2 is clamped on the second bump 334, the lens holder 2 is automatically adsorbed and fixed on the connecting block 33 under the action of negative pressure, then the lens fixing mechanism 20 is pushed to move towards the lens holder fixing mechanism 30, so that the lens holder 2 is sleeved outside the lens 1, and then the rotary driver 40 is started to drive the lens holder 2 to rotate, so as to lock the lens 1 on the lens holder 2.

To sum up, the utility model discloses device is paid to camera lens lock among the above-mentioned embodiment drives microscope base 2 autogiration through rotary actuator 40, can guarantee the uniformity that microscope base 2 and camera lens 1 closed soon to guarantee the uniformity of assembly effect. Meanwhile, a sliding type centering guide structure is adopted, so that the centering performance of the lens base 2 and the lens 1 in sleeving connection is guaranteed, and the reliability of assembly is integrally improved.

Referring to fig. 7 to 8, there is shown an catadioptric lens according to a second embodiment of the present invention, in which the catadioptric lens is substantially the same as the catadioptric lens of the first embodiment, except that:

The inner surface of the claw 21 is provided with a rubber pad 211, and the rubber pad 211 plays a role in preventing the lens 2 from being damaged by the claw 21, and can increase friction force and improve clamping effect.

It should be noted that the device provided by the second embodiment of the present invention, which implements the same principle and produces some technical effects as the first embodiment, can refer to the corresponding contents in the first embodiment for the sake of brief description, where this embodiment is not mentioned.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. a lens locking device, comprising:

a support;

2. the lens locking device according to claim 1, wherein the mirror base fixing mechanism fixes the mirror base by suction by generating negative pressure.

3. the lens locking device of claim 2, wherein the mount securing mechanism comprises:

4. the lens locking device according to claim 3, wherein the rotary driver is an electric screwdriver, and the end of the output shaft is connected to an end of the connecting shaft away from the connecting block.

5. The lens locking device according to claim 3, wherein a plurality of the suction holes are uniformly distributed on the attachment surface, and the diameter of the suction holes is smaller than that of the hollow portion.

6. The lens locking device according to claim 3 or 5, wherein a first protrusion is provided on an end surface of the connecting shaft, the hollow portion penetrates through the first protrusion, a groove matched with the first protrusion is provided on a side of the connecting block facing away from the attaching surface, the absorption hole communicates with the groove, and the first protrusion is clamped in the groove.

7. The lens locking device according to claim 3, wherein a second protrusion is provided on the attachment surface, and the second protrusion is used for being clamped with the central through hole of the lens holder.

8. the lens locking device according to claim 1, wherein the holder comprises a base and three supporting members disposed on top of the base, and the lens fixing mechanism, the lens holder fixing mechanism and the rotary actuator are respectively fixed to the holder by one of the supporting members.

9. The lens locking device according to claim 1 or 8, wherein the lens fixing mechanism, the lens holder fixing mechanism, and the rotary actuator are arranged in the same line in this order.

10. The lens locking device according to claim 1, wherein the lens fixing mechanism comprises a claw and a locking sleeve sleeved on the claw, the locking sleeve is screwed with the claw, and the claw and the end of the locking sleeve are in tapered fit, so as to control the claw to contract or expand outwards by rotating the locking sleeve.