CN108089275B

CN108089275B - Be used for making a video recording module axiality adjusting device

Info

Publication number: CN108089275B
Application number: CN201611023306.4A
Authority: CN
Inventors: 陈成权; 严春琦; 陈冠余; 陈洪; 崔嘉辉
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2016-11-21
Filing date: 2016-11-21
Publication date: 2020-06-05
Anticipated expiration: 2036-11-21
Also published as: CN108089275A

Abstract

The invention relates to a coaxiality adjusting device of a camera module, which comprises a fixed module unit, a module clamping unit, a six-axis unit and a connecting unit, wherein the module clamping unit is supported by the six-axis unit and can be driven by the six-axis unit to move relative to the fixed module unit. The coaxiality adjusting device for the camera module is simple in overall structure, high in coaxiality adjusting precision and convenient to operate.

Description

Be used for making a video recording module axiality adjusting device

Technical Field

The invention relates to a coaxiality adjusting device for a camera module, in particular to a coaxiality adjusting device for a double-camera module.

Background

Chinese patent CN201610165953.2 discloses a dual-camera module, an assembling method thereof and an electronic device. The double-camera module comprises a fixed support, wherein a second part is arranged in the fixed support, and the second part and the spring piece are mutually matched to form a universal joint in the fixed support. The side wall of the fixed support is provided with a first adjusting groove, and the second component is provided with a second adjusting groove. When the two camera modules of equipment, through first adjustment tank and second adjustment tank, adjust the second part position, finally realize the adjustment to the second module of making a video recording.

According to the organization method of the double-camera module disclosed in the chinese patent CN201610165953.2, the position of the second camera module is adjusted by the universal joint structure, so that the optical axis of the second camera module is parallel to the optical axis of the first camera module. The structure and the method are complex, the adjusting process is complicated, the adjusting process takes much time, and the method is not simple and convenient.

Chinese patent 201420591397.1 discloses an integrated testing jig for mobile phone camera module, which is implemented by using a mechanical structure to clamp the camera module. The disadvantages are complex structure and complex manufacturing and using operation.

Chinese patent 201410743392.0 discloses an image module positioning jig and a method thereof, wherein the jig still adopts a mechanical structure for positioning the image module. The disadvantages are as described above.

Chinese patent 201110386894.9 discloses a lens module assembling jig, which uses mechanical parts and mechanical mechanisms to position and hold a lens module placed therein. Of course, the mechanically positioned structure requires various mechanical parts to be matched with each other, so the structure is still complex. The operation is also cumbersome and time consuming.

Disclosure of Invention

The invention aims to provide a coaxiality adjusting device for a camera module so as to quickly, accurately and firmly clamp and release the adjusted camera module.

In order to achieve the above object, the present invention provides a camera module coaxiality adjusting device, which comprises a fixed module unit, a module clamping unit, a six-axis unit and a connecting unit, wherein the module clamping unit is supported by the six-axis unit and can be driven by the six-axis unit to move relative to the fixed module unit.

According to one aspect of the invention, the fixed module unit is provided with a right suction hole and a left suction hole, the right suction hole and the left suction hole are arranged in parallel and are respectively provided with an air inlet hole and an air supply channel which are independent of each other, a right positioning table is arranged around the right suction hole, and a left positioning table is arranged around the left suction hole.

According to one aspect of the invention, the right positioning table is a rectangular platform protruding towards the outside of the fixed module unit, the rectangular platform is further provided with a positioning protrusion, the positioning protrusion is two rectangular cuboids with rectangular cross sections perpendicular to each other, and the right air suction hole is located in the center of the rectangular platform.

According to one aspect of the invention, the left positioning table is a rectangular platform, the upper surface of the left positioning table is a rectangular plane, the left air suction hole is positioned in the center of the rectangular plane, and the positioning surface of the left positioning table is larger than that of the right positioning table.

According to one aspect of the invention, the clamping unit comprises a clamping cylinder and a clamping jaw, wherein the clamping jaw can move under the driving of the clamping cylinder.

According to one aspect of the invention, the clamping unit is fixedly supported by the six-axis unit and is drivable by the six-axis unit in X, Y, Z, θ_x，θ_y，θ_zAnd (6) moving.

According to an aspect of the present invention, the connection unit includes a connection cord having one end electrically connected to the connection carrier plate and the other end provided with a plug, and a connection carrier plate.

The device for adjusting the coaxiality of the camera module adopts the fixed module unit, and the fixed module unit clamps the camera module placed on the fixed module unit in a negative pressure adsorption mode. Because the negative pressure adsorption type clamping only needs to supply and close the negative pressure to clamp and loosen the camera module, the operation time is short, and the operation is simple. Therefore, the module can be clamped and released quickly, and compared with the mechanical clamping and positioning in the prior art, the clamping device has the advantages of few operation steps, simplicity in operation, operation time saving and remarkable effect improvement. Because the module is clamped by adopting a negative pressure adsorption mode, the structure of the fixed module unit is greatly simplified, and only the adsorption holes are arranged. The structure of the equipment is simplified, the manufacturing cost is reduced, the failure rate of the equipment is obviously reduced due to the simple structure, the utilization rate of the equipment is improved, and the failure or maintenance time is reduced.

The fixing module unit used in the coaxiality adjusting device of the camera module forms a positioning reference by utilizing two simple convex edges, and is matched with adsorption type fixing, so that the camera module is simply and accurately positioned, fixed and released. Simple structure has reduced the possibility that equipment broke down, has also shortened the time of centre gripping, release camera module.

According to the device for adjusting the coaxiality of the camera module, which is disclosed by the invention, the clamping jaw is driven by the air cylinder to realize the other clamping of the camera module, so that the clamping firmness is also improved and the clamping stability is improved. The structure of this clamping is also simple.

According to the invention, the fixing module unit and the module clamping unit used in the coaxiality adjusting device of the camera module are respectively provided with the power supply/communication socket, so that power supply and control signals can be directly provided for the camera module placed in the fixing module unit and the module clamping unit, and the electric connection of the camera is realized by a simple and reliable structure with simple operation.

The coaxiality adjusting device for the camera module adopts the transition module, namely the connecting carrier plate. The connecting carrier plate is used for connecting the tool with the connecting soft belt, so that the power-on and communication functions can be realized, and the module is guaranteed to have enough freedom to carry out AA correction.

The coaxiality adjusting device for the camera module is simple in overall structure, high in coaxiality adjusting precision and convenient to operate.

Drawings

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

FIG. 1 is a schematic perspective view of a coaxiality adjusting device for a camera module according to the present invention;

FIG. 2 is a partially enlarged top view of the fixing module unit according to the present invention;

FIG. 3 is a partial cross-sectional view of the fixed module unit of the present invention;

FIG. 4 is a schematic view of a module clamping unit according to the present invention.

Detailed Description

This description of the illustrative embodiments should be taken in conjunction with the accompanying drawings, which are to be considered part of the complete specification. In the drawings, the shape or thickness of the embodiments may be exaggerated and simplified or conveniently indicated. Further, the components of the structures in the drawings will be described separately, and it should be noted that components not shown or described in the drawings are well known to those skilled in the art.

The present invention is described in detail below with reference to the drawings and the specific embodiments, which are not repeated herein, but the embodiments of the present invention are not limited to the following embodiments.

According to the invention, a device for adjusting coaxiality of double-camera modules is provided. The adjusting device is mainly used for adjusting the optical axes of two independent modules to be parallel to each other. Through support interconnect between two independent modules of making a video recording, form a two camera modules. However, when two independent camera modules are assembled together, the optical axes of the lenses in the two camera modules are parallel to each other, so that a clear image can be captured.

Fig. 1 schematically shows a camera module coaxiality adjusting apparatus according to an embodiment of the present invention.

As shown in fig. 1, in one embodiment of the present invention, a fixed module unit 1 is provided in a fixed position with respect to a module holding unit 2 on the right side in the drawing. For example, the fixed module unit 1 is fixedly mounted on a rack, or the position of the fixed module unit 1 relative to the module holding unit 2 is relatively fixed after being moved and positioned by other connecting structures. The fixed module unit 1 is used to clamp and fix two camera modules to be assembled with each other. The structure of the stationary module unit 1 will be described and explained in detail later with reference to other drawings.

As shown in fig. 1, in one embodiment according to the present invention, the module clamping unit 2 is disposed opposite to the fixed module unit 1, and the position of the clamping jaw of the module clamping unit 2 is made to substantially correspond to the position of the fixed module unit 1 where the camera module is placed, so as to clamp one of the camera modules in achieving optical center adjustment of the two camera modules.

In one embodiment according to the present invention, as shown in fig. 1, a connection unit 4 is provided at the rear of the fixed module unit 1. As shown, the connection unit 4 includes a connection cord 401 and a connection carrier 402. One end of the connection cord 401 is electrically connected to the connection carrier 402, and the other end of the connection cord is provided with a plug. In the present embodiment, the connection carrier 402 is a circuit board for connecting a corresponding tool on the device and the connection cord 401. The tooling described above functions to position the connection carrier 402 and to provide power to the connection carrier 402. Therefore, the arrangement can realize the functions of power-on and communication, and simultaneously ensures that the module has enough freedom degree to carry out AA correction. Thus, in the present embodiment, the connection unit 4 is used for supplying power to the two camera modules to be adjusted and transmitting data signals to the two camera modules. The connection unit 4 may be arranged on a frame behind the fixed module unit 1 as shown, or supported by other structures. As long as the connecting unit 4 does not interfere with the movement of the module holding unit 2 when the concentricity of the camera module is adjusted. Of course, the connection unit 4 may also be provided directly on the stationary module unit 1.

When the coaxiality of the double-camera module is adjusted by using the coaxiality adjusting device of the double-camera module, two camera modules to be adjusted are firstly respectively placed on the fixed module unit 1. Then, the placed module is fixed on the fixed module unit 1 by negative pressure suction.

At this time, a support frame (not shown) is further mounted on one of the two camera modules. In the present invention, the camera module with the support frame is placed at a position on the left side in the drawing. The device according to the invention will be described below taking this as an example. However, this arrangement of the module with the support frame is also possible on the right side in the drawing, only the construction being reversed from that described in the present invention.

After that, the fixed module unit 1 with the camera module clamped is conveyed to a station for adjusting concentricity by the conveying mechanism. In the embodiment shown in fig. 1, the fixed module unit 1 is transported to a position opposite to the module holding unit 2.

In the above-mentioned position, the camera module on the fixed module unit 1 is electrically connected to the connection carrier 402 by a cable or other similar connection wire so as to supply power to the camera module.

Then, the camera module on the left side shown in fig. 1 is held by the module holding unit 2, and the position and posture of the left module are adjusted relative to the module on the right side, so that the optical axes of the two modules are parallel to each other.

Fig. 2 and 3 show the shape, structure, etc. of the fixed module unit 1 according to the present invention in a partially enlarged top view and a partially sectional view.

As shown in fig. 2, in one embodiment of the present invention, the fixed module unit 1 is substantially in a convex shape. The upper and lower surfaces are planar and parallel to each other. On the right side as shown in the drawing, a positioning surface 109 is provided for providing a positioning reference for the mounting position of the fixed module unit 1. Of course, other positioning methods may be adopted to position the fixed module unit 1. For example, positioning with dowel pins, etc.

On the protruded portion of the fixing module unit 1 in a shape of a letter, two left side positioning bosses 106 and right side positioning bosses 107 for holding and fixing the camera module are provided.

As can be seen, the left positioning boss 106 is a rectangular platform projecting upward (i.e., in a direction away from) the upper surface of the fixed module unit 1. In the center of the rectangular platform, a left suction hole 102 is provided. In the process of adjusting the concentricity of the camera module, a camera module with a support frame is always fixed on the left positioning boss 106.

As can be seen, the right positioning table 107 on the right side is also a rectangular boss. In the center of this rectangle, a right suction hole 101 is also provided. As shown, on the upper edge and the left edge of the rectangular boss, there are also positioning protrusions 108. In this embodiment, this positioning projection 108 has an inverted L-shape. Namely two mutually perpendicular cuboids with rectangular cross sections. When the concentricity of the two camera modules is adjusted, the two cuboids which are perpendicular to each other are used for providing an attaching surface for positioning one camera module, so that the camera module is accurately placed at a preset position, and a reference is provided for adjusting the concentricity.

As shown in fig. 2, two left and right positioning stages 106, 107 for the camera module are provided at one end, i.e., the upper end as viewed in the drawing, of the fixed module unit 1 in a convex shape at a certain distance from each other. The distance between the left positioning table 106 and the right positioning table 107 depends on the distance between two cameras in the camera module whose concentricity is adjusted. In the embodiment shown in fig. 2, the left positioning stage 106 is used for placing the camera module with the support frame, and the right positioning stage 107 is used for placing the camera module as a reference for positioning or adjusting concentricity. According to other embodiments of the present invention, the positions of the two may be interchanged.

On the lower side of the fixed module unit 1 shown in fig. 2, a fixing hole 103 for fixing the unit is provided.

In another embodiment according to the present invention, the fixed module unit 1 may be divided into two parts, i.e., a left half part and a right half part. The left half is provided with a left suction hole 102, a left positioning table 106 and a corresponding fixing hole 103. Correspondingly, the right half part can also be provided with a corresponding right suction hole 101, a right positioning table 107 and a corresponding fixing hole 103. In this embodiment, the surfaces of the left and right parts facing each other are provided with positioning surfaces or members for accurately positioning the parts relative to each other. After the two parts have been positioned precisely, they are connected to one another in a positionally fixed manner, so that a complete fixed modular unit 1 is formed. The advantage of this arrangement is that the complete fixed module unit 1 formed by the two parts can be adapted to different dual camera modules by adjusting the relative distance between the two parts. Can be suitable for the two camera modules of the distance difference between two camera modules promptly.

Fig. 3 shows a stationary module unit 1 according to an embodiment of the invention in a partial perspective sectional view. As shown in the figure, in the center of the right positioning table 107, there is a duct perpendicular thereto, i.e., the right suction hole 101. The right suction hole 101 communicates with the air supply passage 105, and the air supply passage 105 communicates with the air supply hole 104. Thus, the right suction hole 101 can be communicated with a negative pressure air source. After the camera module serving as the concentricity reference of the device is placed on the right positioning table 107, a negative pressure air source is connected, so that the camera module can be firmly adsorbed on the right positioning table 107 by negative pressure. As described above, since the positioning boss 108 is provided on the right positioning stage 107, the camera module placed on the right positioning stage 107 can be accurately positioned. After the module location, simply utilize the negative pressure to fix it, make it lie in the in-process position of another camera module mutual adjustment concentricity invariable all the time. The mode of positioning the module and fixing the module is simple in structure and accurate in positioning. Compared with the traditional mode of mechanically fixing the module, the negative pressure is simple and easy to switch on or switch on and switch off, so the operation time is shortened, and the work efficiency is obviously improved.

Fig. 3 shows only a part of a fixed module unit 1, and shows only the structure of the fixed module unit 1 for clamping a module according to the present invention in a schematic form. Two modules can be placed on the fixed module unit 1, and the structure for holding the other module is similar to that shown in fig. 3.

Fig. 4 shows a module clamping unit 2 according to an embodiment of the invention. As shown in fig. 4, the module clamping unit 2 according to the present invention includes a clamping cylinder 201, a clamping jaw 202, and a six-axis mechanism 203. The clamping jaw 202 can be opened and closed under the driving of the clamping cylinder 201 so as to clamp the adjusted camera module in the process of implementing concentricity adjustment. The clamp cylinder 201 is provided on a six-axis mechanism 203. The six-axis mechanism 203 can drive the clamping cylinder 201 to move in X, Y, Z, theta_x，θ_y，θ_zMoving in the direction. The posture of the clamped camera module relative to the left module fixed on the fixed module unit 1 is adjusted, and the optical axes of the camera module and the left module are parallel to each other.

The above description is only an embodiment of one aspect of the present invention, and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The coaxiality adjusting device of the camera module is characterized by comprising a fixed module unit (1), a module clamping unit (2), a six-axis unit (3) and a connecting unit (4), wherein the module clamping unit (2) is supported by the six-axis unit (3) and can be driven by the six-axis unit (3) to move relative to the fixed module unit (1);

the fixed module unit (1) is provided with a right side air suction hole (101) and a left side air suction hole (102), the right side air suction hole (101) and the left side air suction hole (102) are arranged in parallel and are respectively provided with an air inlet hole (104) and an air supply channel (105) which are mutually independent, a right side positioning platform (107) is arranged around the right side air suction hole (101), and a left side positioning platform (106) is arranged around the left side air suction hole (102).

2. The camera module coaxiality adjusting device according to claim 1, wherein the right positioning table (107) is a rectangular platform protruding towards the outside of the fixed module unit (1), a positioning protrusion (108) is further arranged on the rectangular platform, the positioning protrusion (108) is a cuboid with two mutually perpendicular cross sections being rectangular, and the right air suction hole (101) is located in the center of the rectangular platform.

3. The camera module coaxiality adjusting device according to claim 1, wherein the left positioning table (106) is a rectangular platform, the upper surface of the rectangular platform is a rectangular plane, the left suction hole (102) is located at the center of the rectangular plane, and the positioning surface of the left positioning table (106) is larger than the positioning surface of the right positioning table (107).

4. The camera module coaxiality adjusting device according to claim 1, wherein the clamping unit (2) comprises a clamping cylinder (201) and a clamping jaw (202), and the clamping jaw (202) can be driven by the clamping cylinder (201) to move.

5. The camera module coaxiality adjusting apparatus according to claim 1 or 4, wherein the holding unit (2) is fixedly supported by the six-axis unit (3) and is driven by the six-axis unit (3) along the X, Y, Z, θ axes_x，θ_y，θ_zAnd (6) moving.

6. The camera module coaxiality adjusting apparatus according to claim 1, wherein the connection unit (4) includes a connection cord (401) and a connection carrier plate (402), one end of the connection cord (401) is electrically connected to the connection carrier plate (402), and the other end of the connection cord (401) is provided with a plug.