Camera module tooling jig and camera module focusing system

Abstract

The utility model belongs to the technical field of camera focusing equipment, and particularly provides a camera module tool jig and a camera module focusing system.The camera module tool jig comprises a supporting piece, a distance adjusting mechanism and fixing supports, the multiple fixing supports are arranged on the supporting piece, the position of at least one fixing support on the supporting piece is adjustable, the distance adjusting mechanism is arranged on the supporting piece, and the distance adjusting mechanism is arranged on the distance adjusting mechanism. The distance adjusting mechanism is connected to the supporting piece and used for driving the supporting piece to move in the direction of the optical axis of the camera module. The distance between every two fixing supports is changed by adjusting the positions of the fixing supports on the supporting piece, so that installation and fixation of camera modules of different specifications are met, in addition, the supporting piece is driven by the distance adjusting mechanism to move in the direction of the optical axis of the camera module, and therefore adjustment of the distance between the camera module and a test graphic card is achieved. Therefore, the focusing operation requirements of camera modules of different specifications can be met, and the camera module of each specification does not need to develop a corresponding tool jig, so that the manufacturing cost can be reduced.

Description

Technical Field

[0001] This application belongs to the technical field of camera focusing equipment, specifically relating to a camera module tooling fixture and a camera module focusing system. Background Technology

[0002] IPC stands for IP camera, which mainly consists of a lens and an image sensor. During camera production, focusing is typically required, which involves adjusting the distance between the lens and the image sensor. This focusing process usually involves fixing the camera on a fixture, placing a test chart in front of the lens, aligning the lens's optical axis perpendicular to the chart and its center, transmitting the image signal to a computer, and displaying it on the screen. An operator then adjusts the distance between the lens and the image sensor until the image displayed on the monitor meets the required sharpness. However, current fixtures are generally custom-made according to camera specifications. A single fixture cannot accommodate the installation and positioning of cameras of different sizes, and the required distance between the lens and the test chart often differs for different camera sizes. This makes it difficult for a single fixture to meet the focusing requirements of various camera specifications. Therefore, a corresponding fixture usually needs to be developed for each camera size, resulting in high manufacturing costs. Utility Model Content

[0003] The purpose of this application is to provide a camera module tooling fixture and a camera module focusing system, which aims to solve the technical problem that each type of camera in the prior art requires the development of a corresponding focusing tooling fixture, resulting in high manufacturing costs.

[0004] On the one hand, to achieve the above objectives, the technical solution adopted in this application is: a camera module tooling fixture, including a support member, a distance adjustment mechanism and multiple fixed brackets, all of which are disposed on the support member and cooperate to fix the camera module. The position of at least one fixed bracket on the support member is adjustable to adjust the distance between each pair of fixed brackets. The distance adjustment mechanism is connected to the support member and is used to drive the support member to move along the optical axis of the camera module.

[0005] Compared with existing technologies, the beneficial effects of the camera module tooling fixture provided in this application are as follows: When fixing the camera module, multiple fixing brackets work together to fix the camera module. The position of the fixing brackets on the support can be adjusted according to the specifications of the camera module to change the distance between each pair of fixing brackets, thereby meeting the installation and fixing requirements of camera modules of different specifications. It eliminates the need to develop corresponding tooling fixtures for each type of camera module, thus reducing manufacturing costs. Furthermore, based on the distance between the camera module and the test chart required for focusing, a distance adjustment mechanism moves the support along the optical axis of the camera module, thereby adjusting the distance between the camera module and the test chart to meet the focusing requirements of different types of camera modules. This again eliminates the need to develop corresponding tooling fixtures for each type of camera module, further reducing manufacturing costs.

[0006] Furthermore, the support member is provided with multiple connection structures, which are distributed at intervals. The number of connection structures is greater than the number of fixed brackets, and the fixed brackets can be detachably connected to any one of the connection structures.

[0007] Furthermore, multiple connection structures are distributed in a rectangular or circular array.

[0008] Furthermore, the connection structure is a threaded hole, and the fixing bracket is provided with a through hole; the camera module tooling fixture also includes a threaded fastener, which passes through the through hole and is threadedly connected to the threaded hole.

[0009] Furthermore, the distance adjustment mechanism includes a folding bracket, with a support member disposed on the folding bracket. The folding bracket is used to extend or fold along the optical axis of the camera module, thereby driving the support member to move along the optical axis of the camera module.

[0010] Furthermore, the folding bracket includes a movable seat, a fixed seat, a first rotating arm, and a second rotating arm. The movable seat is fixedly connected to the support member. The first rotating arm has a first connecting part between its two ends, and the second rotating arm has a second connecting part between its two ends. The first connecting part and the second connecting part are rotatably connected. The two ends of the first rotating arm are respectively rotatably connected to a first slider and a first connecting block. The first slider is slidably connected to the movable seat, and the first connecting block is fixedly connected to the fixed seat. The two ends of the second rotating arm are respectively rotatably connected to a second slider and a second connecting block. The second slider is slidably connected to the fixed seat, and the second connecting block is fixedly connected to the movable seat.

[0011] Furthermore, the folding bracket also includes a rotating shaft, which is rotatably mounted on a movable seat or a fixed seat. When the rotating shaft is rotatably mounted on the movable seat, a first slider is threaded onto the rotating shaft, and the first slider and the movable seat are fixed together along the circumference of the rotating shaft. When the rotating shaft is rotatably mounted on the fixed seat, a second slider is threaded onto the rotating shaft, and the second slider and the fixed seat are fixed together along the circumference of the rotating shaft.

[0012] Furthermore, the fixed bracket has a fixed column, which is tapered.

[0013] Furthermore, the camera module tooling fixture also includes a first scale bar and a second scale bar. The length direction of the first scale bar and the second scale bar is consistent with the direction of the optical axis of the camera module. The first scale bar is fixedly connected to the support member and slides against one side of the second scale bar.

[0014] On the other hand, to achieve the above objectives, the technical solution adopted in this application is: a camera module focusing system, including a test pattern card, a display device, and the aforementioned camera module tooling fixture. The display device is used to electrically connect with the camera module fixed on the fixed bracket to display the image captured by the camera module on the test pattern card.

[0015] Compared with existing technologies, the advantages of the camera module focusing system provided in this application are as follows: During focusing, the camera module is fixed on multiple mounting brackets, a test chart is placed in front of the camera module lens, and the optical axis of the lens is perpendicular to the test chart. The image signal collected by the camera module is transmitted to a display device, which displays the image captured by the camera module in front of the test chart. Then, the operator adjusts the distance between the camera module lens and the image sensor until the image displayed on the display device meets the clarity requirements. The position of the mounting brackets on the support is adjusted according to the specifications of the camera module to change the distance between every two mounting brackets, thereby accommodating the installation and fixing of camera modules of different specifications. This eliminates the need to develop corresponding tooling fixtures for each type of camera module, thus reducing manufacturing costs. In addition, based on the distance between the camera module and the test chart required for focusing, the distance adjustment mechanism drives the support to move along the optical axis of the camera module, thereby adjusting the distance between the camera module and the test chart to meet the focusing requirements of different specifications of camera modules. This eliminates the need to develop corresponding tooling fixtures for each type of camera module, thus reducing manufacturing costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the camera module focusing system provided in an embodiment of this application;

[0018] Figure 2 for Figure 1The front view of the camera module tooling fixture shown;

[0019] Figure 3 for Figure 1 The rear view of the camera module tooling fixture shown (with the first and second scale bars hidden);

[0020] Figure 4 for Figure 1 The top view of the camera module fixture shown.

[0021] The following are the labeling elements in the figure:

[0022] 100. Camera module tooling fixtures;

[0023] 10. Supporting components; 11. Connecting structure;

[0024] 20. Distance adjustment mechanism; 21. Movable seat; 211. First mounting plate; 212. First slide rail; 213. First blocking block; 214. Second blocking block; 22. Fixed seat; 221. Second mounting plate; 222. Second slide rail; 223. Third blocking block; 224. Fourth blocking block; 23. First rotating arm; 24. Second rotating arm; 25. First slider; 26. First connecting block; 27. Second slider; 28. Second connecting block; 291. Rotating shaft; 292. Step screw; 293. Bearing; 294. Second fixing screw; 295. Knob; 296. Third fixing screw; 297. Locking screw;

[0025] 30. Fixed bracket; 31. Fixed column; 32. Mounting block; 321. Through hole;

[0026] 40. Threaded fasteners;

[0027] 50. First fixing screw;

[0028] 60. First scale bar;

[0029] 70. Second scale bar;

[0030] 200. Camera module; 201. Optical axis; 202. Circuit board; 203. Camera body;

[0031] 300. Test chart. Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0033] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] like Figure 1 As shown, this application embodiment provides a camera module tooling fixture 100, including a support member 10, a distance adjustment mechanism 20, and multiple fixed brackets 30. The multiple fixed brackets 30 are all disposed on the support member 10, and the multiple fixed brackets 30 cooperate to fix the camera module 200. The position of at least one fixed bracket 30 on the support member 10 is adjustable to adjust the distance between every two fixed brackets 30. The distance adjustment mechanism 20 is connected to the support member 10 and is used to drive the support member 10 to move along the optical axis 201 of the camera module 200.

[0037] It should be noted that the camera module 200 includes a lens and an image sensor. During the production process of the camera module 200, focusing is usually required. Focusing refers to adjusting the distance between the lens and the image sensor. During focusing, the camera module 200 is fixed on the camera module fixture 100, and a test chart 300 is set in front of the lens of the camera module 200. The optical axis 201 of the lens is perpendicular to the test chart 300 and coincides with the center of the chart. The optical axis 201 is the center line of the lens. The image signal captured by the lens is transmitted to the computer and displayed on the computer screen. Then, the operator adjusts the distance between the lens and the image sensor until the image displayed on the monitor meets the clarity requirements.

[0038] When fixing the camera module 200, multiple fixing brackets 30 are used to fix the camera module 200. The position of the fixing brackets 30 on the support 10 can be adjusted according to the specifications of the camera module 200 to change the distance between every two fixing brackets 30. This allows for the installation and fixing of camera modules 200 of different specifications without the need to develop corresponding tooling fixtures for each size of camera module 200, thereby reducing manufacturing costs. Generally, the larger the size of the camera module 200, the larger the distance required between every two fixing brackets 30, that is, the more widely the fixing brackets 30 are distributed, in order to enhance the support stability of the camera module 200. In addition, based on the distance between the camera module 200 and the test chart 300 required for focusing, the distance adjustment mechanism 20 drives the support member 10 to move along the optical axis 201 of the camera module 200, thereby adjusting the distance between the camera module 200 and the test chart 300 to meet the focusing requirements of different specifications of camera modules 200. This eliminates the need to develop corresponding tooling fixtures for each specification of camera module 200, thus reducing manufacturing costs.

[0039] In some embodiments, such as Figure 4 As shown, the support member 10 is provided with multiple connecting structures 11, which are spaced apart. The number of connecting structures 11 is greater than the number of fixed brackets 30, and each fixed bracket 30 can be connected to any one of the connecting structures 11. By providing multiple spaced connecting structures 11 on the support member 10, and ensuring that the number of connecting structures 11 is greater than the number of fixed brackets 30, the fixed brackets 30 can be selectively connected to any one of the connecting structures 11 according to the specifications of the camera module 200. This allows for adjustment of the distribution of the multiple fixed brackets 30, thereby adjusting the distance between any two fixed brackets 30.

[0040] In some embodiments, such as Figure 4As shown, multiple connecting structures 11 are arranged in a rectangular or circular array. By arranging the multiple connecting structures 11 in a rectangular or circular array, the spacing between the fixed supports 30 can be adjusted in multiple different directions, rather than being limited to a single straight line, making the position adjustment of the fixed supports 30 more flexible, so as to fix camera modules 200 of various shapes and sizes. In addition, it is possible to satisfy the arrangement of four or more fixed supports 30 in a rectangular or circular array to enhance the support stability of the camera module 200. For example, the multiple connecting structures 11 shown in the figure are arranged in a rectangular array in the XY plane, that is, on the horizontal plane. There are four fixed supports 30 arranged in a rectangular array. The camera module 200 is arranged facing upwards, and the optical axis 201 of the camera module 200 is in the Z direction, that is, the up and down direction. The test chart 300 is arranged directly above the camera module 200. The distance adjustment mechanism 20 is used to drive the support member 10 to move in the up and down direction to realize the height adjustment of the camera module 200. Of course, in some other embodiments, the camera module 200 and the test chart 300 can also be arranged at intervals in the horizontal direction, with the optical axis 201 of the camera module 200 in the horizontal direction. In this case, the distance adjustment mechanism 20 is set to drive the support member 10 to move in the horizontal direction.

[0041] In some embodiments, combined with Figure 2 and Figure 4 As shown, the support member 10 is flat, which can accommodate multiple connecting structures 11 in a rectangular or circular array, and can provide a plane to stably support the positioning bracket. In addition, it has the characteristics of simple structure, easy manufacturing and low manufacturing cost.

[0042] In some embodiments, the connecting structure 11 is a threaded hole, combined with Figure 2 and Figure 4 As shown, the fixed bracket 30 has a through hole 321, and the camera module tooling fixture 100 also includes a threaded fastener 40, which passes through the through hole 321 and is threadedly connected to the threaded hole. When it is necessary to adjust the position of the fixed bracket 30, the threaded fastener 40 is removed, and then the fixed bracket 30 can be freely adjusted so that the through hole 321 of the fixed bracket 30 is aligned with any other threaded hole. After confirming the position, the threaded fastener 40 is installed so that it passes through the through hole 321 and is threadedly connected to the threaded hole, thereby reliably fixing the fixed bracket 30 to the support member 10, preventing the support member 10 from moving at will, and ensuring the fixing effect on the camera module 200.

[0043] In some embodiments, such as Figure 2As shown, threaded fastener 40 is a butterfly screw. Butterfly screws can be installed and removed by hand without the need for screwdrivers or other tools. Compared with conventional hex socket screws and Phillips head screws, the installation and removal operation is more convenient, which helps to improve the efficiency of adjusting the position of the fixed bracket 30.

[0044] In some embodiments, such as Figure 4 As shown, the through hole 321 of the fixed bracket 30 is a strip-shaped hole. By setting the through hole 321 as a strip-shaped hole, the position of the fixed bracket 30 can be finely adjusted to improve the positioning accuracy of the fixed bracket 30. Specifically, when it is necessary to finely adjust the position of the fixed bracket 30, the threaded fastener 40 is removed, and then the fixed bracket 30 can be moved along the length of the strip-shaped hole. After determining the position, the threaded fastener 40 is reinstalled to fix the fixed bracket 30 on the support member 10.

[0045] In some embodiments, such as Figure 2 As shown, the mounting bracket 30 has a mounting post 31, which is tapered. Specifically, the camera module 200 has mounting holes, and the camera module 200 is fixed by inserting the mounting post 31 into the mounting holes. By setting the mounting post 31 to a tapered shape, it can accommodate mounting holes of different diameters, satisfying the installation and fixing of camera modules 200 of different specifications. More specifically, the camera module 200 includes a circuit board 202 and a camera body 203 disposed on the circuit board 202, with the mounting holes located on the circuit board 202.

[0046] In some embodiments, such as Figure 2 As shown, the fixed bracket 30 includes a mounting block 32 and a fixing post 31. The mounting block 32 is provided with a through hole 321. The threaded fastener 40 fixes the mounting block 32 to the support member 10. The fixing post 31 is fixedly connected to the mounting block 32.

[0047] In some embodiments, the camera module tooling fixture 100 further includes a gasket, which is disposed between the threaded fastener 40 and the fixed bracket 30 to increase the contact area, reduce pressure, prevent loosening, and protect the fixed bracket 30.

[0048] In some embodiments, the distance adjustment mechanism 20 includes a folding bracket, with a support member 10 disposed on the folding bracket. The folding bracket is used to extend or fold along the optical axis 201 of the camera module 200, thereby driving the support member 10 to move along the optical axis 201 of the camera module 200. Specifically, when the folding bracket extends along the optical axis 201 of the camera module 200, it drives the support member 10 to move closer to the test chart 300, thereby reducing the distance between the camera module 200 and the test chart 300. Conversely, when the folding bracket folds along the optical axis 201 of the camera module 200, it drives the support member 10 to move further away from the test chart 300, thereby increasing the distance between the camera module 200 and the test chart 300. Compared to conventional drive devices such as cylinders and electric cylinders, using a folding bracket to drive the support member 10 has advantages such as simple structure, low cost, and small space occupation.

[0049] In some embodiments, such as Figure 3As shown, the folding bracket includes a movable base 21, a fixed base 22, a first rotating arm 23, and a second rotating arm 24. The movable base 21 and the fixed base 22 are spaced apart along the optical axis 201 of the camera module 200. The movable base 21 is fixedly connected to the support member 10. The first rotating arm 23 has a first connecting part between its two ends, and the second rotating arm 24 has a second connecting part between its two ends. The first connecting part and the second connecting part are rotatably connected. The two ends of the first rotating arm 23 are respectively rotatably connected to a first slider 25 and a first connecting block 26. The first slider 25 is slidably connected to the movable base 21, and the first connecting block 26 is fixedly connected to the fixed base 22. The two ends of the second rotating arm 24 are respectively rotatably connected to a second slider 27 and a second connecting block 28. The second slider 27 is slidably connected to the fixed base 22, and the second connecting block 28 is fixedly connected to the movable base 21. When it is necessary to reduce the distance between the camera module 200 and the test chart 300, the first rotating arm 23 and the second rotating arm 24 are rotated with the first connecting part and the second connecting part as the rotation center. This causes the first slider 25 to slide on the movable seat 21 in the direction close to the second connecting block 28, and at the same time causes the second slider 27 to slide on the fixed seat 22 in the direction close to the first connecting block 26. During this process, the first rotating arm 23 will rotate relative to the first slider 25 and the first connecting block 26, and the second rotating arm 24 will rotate relative to the second slider 27 and the second connecting block 28. The first slider 25 and the second connecting block 28 push the movable seat 21 to move away from the fixed seat 22 along the optical axis 201 of the camera module 200. At this time, the folding bracket is in an extended state. The movable seat 21 then drives the support member 10 and the camera module 200 to move away from the fixed seat 22, that is, to move towards the test chart 300, so as to reduce the distance between the camera module 200 and the test chart 300. When it is necessary to increase the distance between the camera module 200 and the test chart 300, the first rotating arm 23 and the second rotating arm 24 are rotated in the opposite direction, causing the first slider 25 to slide on the movable seat 21 away from the second connecting block 28, and at the same time causing the second slider 27 to slide on the fixed seat 22 away from the first connecting block 26. The first slider 25 and the second connecting block 28 pull the movable seat 21 to move along the optical axis 201 of the camera module 200 towards the fixed seat 22. At this time, the folding bracket is in a folded state. The movable seat 21 then drives the support member 10 and the camera module 200 to move towards the fixed seat 22, that is, towards the direction away from the test chart 300, so as to increase the distance between the camera module 200 and the test chart 300.

[0050] In some embodiments, such as Figure 3As shown, the folding bracket also includes a rotating shaft 291, which is rotatably mounted on the movable seat 21. A first slider 25 is threaded onto the rotating shaft 291, and the first slider 25 and the movable seat 21 are fixed circumferentially along the rotating shaft 291. Since the first slider 25 and the movable seat 21 are fixed circumferentially along the rotating shaft 291, the first slider 25 is restricted from rotating relative to the rotating shaft 291. Furthermore, since the first slider 25 is threadedly engaged with the rotating shaft 291, the first slider 25 can move linearly along the axial direction of the rotating shaft 291 as the rotating shaft 291 rotates.

[0051] When it is necessary to reduce the distance between the camera module 200 and the test chart 300, the rotating shaft 291 is rotated so that the first slider 25 moves along the axial direction of the rotating shaft 291 toward the direction closer to the second connecting block 28. The movement of the first slider 25 drives the first rotating arm 23 and the second rotating arm 24 to rotate. The rotation of the second rotating arm 24 drives the second slider 27 to move on the fixed seat 22 toward the direction closer to the first connecting block 26. The first slider 25 and the second connecting block 28 push the movable seat 21 to move away from the fixed seat 22. The folding bracket is in an extended state. The movable seat 21 then drives the support member 10 and the camera module 200 to move away from the fixed seat 22, that is, to move toward the direction closer to the test chart 300, so as to reduce the distance between the camera module 200 and the test chart 300.

[0052] When it is necessary to increase the distance between the camera module 200 and the test chart 300, the rotating shaft 291 is rotated in the opposite direction, causing the first slider 25 to move away from the second connecting block 28 along the axial direction of the rotating shaft 291. The movement of the first slider 25 drives the first rotating arm 23 and the second rotating arm 24 to rotate. The rotation of the second rotating arm 24 drives the second slider 27 to move away from the first connecting block 26 on the fixed seat 22. The first slider 25 and the second connecting block 28 pull the movable seat 21 to move closer to the fixed seat 22. The folding bracket is in a folded state. The movable seat 21 then drives the support member 10 and the camera module 200 to move closer to the fixed seat 22, that is, to move away from the test chart 300, so as to increase the distance between the camera module 200 and the test chart 300.

[0053] In some other embodiments, the rotating shaft 291 can also be rotatably mounted on the fixed seat 22. In this case, the second slider 27 is threaded onto the rotating shaft 291, and the second slider 27 and the fixed seat 22 are fixed along the circumference of the rotating shaft 291. The working principle and working process can be referred to the explanation of the above embodiments, and will not be repeated here.

[0054] In some embodiments, combined with Figure 2 and Figure 3As shown, there are two of each of the following: the first rotating arm 23, the second rotating arm 24, the first connecting block 26, and the second connecting block 28. One end of each of the two first rotating arms 23 is connected to opposite sides of the first slider 25, and the other end of each of the two first rotating arms 23 is connected to the two first connecting blocks 26. One end of each of the two second rotating arms 24 is connected to opposite sides of the second slider 27, and the other end of each of the two second rotating arms 24 is connected to the two second connecting blocks 28. This improves the stability of the folding bracket during extension and folding. Of course, in other embodiments, there can also be two first sliders 25 and two second sliders 27, with the two first rotating arms 23 connected to the two first sliders 25 and the two second rotating arms 24 connected to the two second sliders 27. Similarly, there can be one first connecting block 26 and one second connecting block 28, with the two first rotating arms 23 connected to opposite sides of the first connecting block 26 and the two second rotating arms 24 connected to opposite sides of the second connecting block 28.

[0055] In some embodiments, such as Figure 2 As shown, the first connecting part of the first rotating arm 23 and the second connecting part of the second rotating arm 24 are connected by stepped screws 292. Using stepped screws 292 to connect the first and second connecting parts not only achieves axial limiting of the first rotating arm 23 and the second rotating arm 24, but also allows for relative rotation between the first rotating arm 23 and the second rotating arm 24. The first rotating arm 23 can be connected to the first slider 25, the first rotating arm 23 to the first connecting block 26, the second rotating arm 24 to the second slider 27, and the second rotating arm 24 to the second connecting block 28 via stepped screws 292.

[0056] In some embodiments, such as Figure 3 As shown, the movable seat 21 includes a first mounting plate 211, a first slide rail 212, a first blocking block 213, and a second blocking block 214. One side of the first mounting plate 211 is fixedly connected to the support member 10. The first blocking block 213, the second blocking block 214, and the second connecting block 28 are all fixedly connected to the other side of the first mounting plate 211. The first blocking block 213, the second blocking block 214, and the second connecting block 28 are arranged sequentially at intervals along the axial direction of the rotating shaft 291. The two ends of the first slide rail 212 are respectively connected to the first blocking block 213 and the second blocking block 214. The rotating shaft 291 rotatably passes through the first blocking block 213 and the second blocking block 214. The first slider 25 is slidably connected to the first slide rail 212. The first blocking block 213 and the second blocking block 214 can limit the stroke of the first slider 25 and prevent the first slider 25 from disengaging from the first slide rail 212.

[0057] In some embodiments, such as Figure 4As shown, the first mounting plate 211 and the support member 10 are connected and fixed by the first fixing screw 50. Specifically, the first fixing screw 50 can be an internal hex screw.

[0058] In some embodiments, the first slider 25 is provided with a first groove, and the first slide rail 212 is partially embedded in the first groove. This enables the first slider 25 and the first slide rail 212 to be fixed circumferentially along the pivot 291, and also ensures the stability of the first slider 25 when sliding. Of course, in some other embodiments, the first groove may also be provided on the first slide rail 212, and the first slider 25 may be at least partially embedded in the first groove.

[0059] In some embodiments, such as Figure 3 As shown, the folding bracket also includes a bearing 293, which is fixedly mounted on the side of the first blocking block 213 facing away from the second blocking block 214 and sleeved on the rotating shaft 291 to achieve a rotatable connection between the rotating shaft 291 and the movable seat 21. Specifically, the outer ring of the bearing 293 can be fixed to the support member 10 and the first slide rail 212 by a second fixing screw 294, which can be an internal hex screw.

[0060] In some embodiments, such as Figure 3 As shown, the folding bracket also includes a knob 295, which is fixedly mounted on one end of the rotating shaft 291. Operators can rotate the rotating shaft 291 by turning the knob 295, making operation more convenient. Specifically, the knob 295 and the rotating shaft 291 can be connected and fixed by a third fixing screw 296, which can be an internal hex screw.

[0061] In some embodiments, such as Figure 3 As shown, the folding bracket also includes a locking screw 297, which is threaded onto the knob 295. The locking screw 297 passes through the knob 295 and abuts against the bearing 293 to restrict the rotation of the knob 295 relative to the movable seat 21. When the distance between the camera module 200 and the test chart 300 is adjusted to a suitable value, the locking screw 297 is tightened so that it passes through the knob 295 and abuts against the bearing 293, thereby restricting the rotation of the knob 295 relative to the movable seat 21. This stabilizes the angle of the rotating shaft 291, preventing the rotating shaft 291 from rotating arbitrarily, and thus keeping the distance between the camera module 200 and the test chart 300 stable.

[0062] In some embodiments, such as Figure 3As shown, the fixed base 22 includes a second mounting plate 221, a second slide rail 222, a third blocking block 223, and a fourth blocking block 224. The third blocking block 223, the fourth blocking block 224, and the first connecting block 26 are all fixedly connected to the side of the second mounting plate 221 facing the movable base 21. The third blocking block 223, the fourth blocking block 224, and the first connecting block 26 are sequentially spaced along the axial direction of the rotating shaft 291. The two ends of the second slide rail 222 are respectively connected to the third blocking block 223 and the fourth blocking block 224. The second slider 27 is slidably connected to the second slide rail 222. The third blocking block 223 and the fourth blocking block 224 can limit the stroke of the second slider 27, preventing the second slider 27 from disengaging from the second slide rail 222.

[0063] In some embodiments, the second slider 27 is provided with a second groove, and the second slide rail 222 is partially embedded in the second groove to ensure the stability of the second slide rail 222 during sliding. Of course, in some other embodiments, the second groove may also be provided on the second slide rail 222, and the second slider 27 may be at least partially embedded in the second groove.

[0064] In some embodiments, such as Figure 2 As shown, the camera module fixture 100 also includes a first scale bar 60 and a second scale bar 70. The length direction of the first scale bar 60 and the second scale bar 70 is consistent with the direction of the optical axis 201 of the camera module 200. The first scale bar 60 is fixedly connected to the support member 10 and slides against one side of the second scale bar 70. When the distance adjustment mechanism 20 drives the support member 10 to move along the direction of the optical axis 201 of the camera module 200, the support member 10 can drive the first scale bar 60 to move together, so that the first scale bar 60 slides relative to the second scale bar 70. By observing the scale lines on the first scale bar 60 and the second scale bar 70, the moving distance of the support member 10 can be quickly and accurately determined, which is beneficial for accurately controlling the distance between the camera module 200 and the test chart 300. Specifically, the measuring range of the first scale bar 60 can be 0-90mm, and the minimum division value is 1mm. The first scale bar 60 can be directly fixedly connected to the support member 10, or it can be directly fixedly connected to the first mounting plate 211 of the movable seat 21. It should be understood that since the first mounting plate 211 is fixedly connected to the support member 10, the first scale bar 60 being fixedly connected to the first mounting plate 211 can be considered as the first scale bar 60 being indirectly fixedly connected to the support member 10. The second scale bar 70 can be fixedly connected to the second mounting plate 221 of the fixed seat 22.

[0065] This application also provides a camera module 200 focusing system, such as... Figure 1As shown, the device includes a test chart 300, a display device (not shown), and the aforementioned camera module fixture 100. The display device is electrically connected to the camera module 200 fixed on the mounting bracket 30 to display the image captured by the camera module 200 on the test chart 300.

[0066] During focusing, the camera module 200 is fixed on multiple mounting brackets 30. A test chart 300 is placed in front of the lens of the camera module 200, ensuring that the optical axis 201 of the lens is perpendicular to the test chart 300. The image signal captured by the camera module 200 is transmitted to a display device, which displays the image captured by the camera module 200 towards the test chart 300. Then, the operator adjusts the distance between the lens of the camera module 200 and the image sensor until the image displayed on the display device meets the clarity requirements. The position of the mounting brackets 30 on the support member 10 is adjusted according to the specifications of the camera module 200 to change the distance between every two mounting brackets 30. This allows for the installation and fixing of camera modules 200 of different specifications without the need to develop corresponding tooling fixtures for each specification of camera module 200, thereby reducing manufacturing costs. In addition, based on the distance between the camera module 200 and the test chart 300 required for focusing, the distance adjustment mechanism 20 drives the support member 10 to move along the optical axis 201 of the camera module 200, thereby adjusting the distance between the camera module 200 and the test chart 300 to meet the focusing requirements of different specifications of camera modules 200. This eliminates the need to develop corresponding tooling fixtures for each specification of camera module 200, thus reducing manufacturing costs.

[0067] Specifically, the display device can be a computer.

[0068] It should be noted that the above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A camera module tooling fixture, characterized in that, The device includes a support member, a distance adjustment mechanism, and multiple fixed brackets. The multiple fixed brackets are all disposed on the support member and cooperate to fix the camera module. The position of at least one fixed bracket on the support member is adjustable to adjust the distance between each pair of fixed brackets. The distance adjustment mechanism is connected to the support member and is used to drive the support member to move along the optical axis of the camera module.

2. The camera module tooling fixture according to claim 1, characterized in that: The support member is provided with multiple connecting structures, which are spaced apart. The number of connecting structures is greater than the number of fixed brackets, and the fixed brackets are detachably connected to any one of the connecting structures.

3. The camera module tooling fixture according to claim 2, characterized in that: The multiple connection structures are distributed in a rectangular or circular array.

4. The camera module tooling fixture according to claim 2, characterized in that: The connection structure is a threaded hole, and the fixing bracket is provided with a through hole; the camera module tooling fixture also includes a threaded fastener, which passes through the through hole and is threadedly connected to the threaded hole.

5. The camera module tooling fixture according to claim 1, characterized in that: The distance adjustment mechanism includes a folding bracket, and the support member is disposed on the folding bracket. The folding bracket is used to extend or fold along the optical axis of the camera module, thereby driving the support member to move along the optical axis of the camera module.

6. The camera module tooling fixture according to claim 5, characterized in that: The folding bracket includes a movable seat, a fixed seat, a first rotating arm, and a second rotating arm. The movable seat is fixedly connected to the support member. The first rotating arm has a first connecting part between its two ends, and the second rotating arm has a second connecting part between its two ends. The first connecting part and the second connecting part are rotatably connected. A first slider and a first connecting block are rotatably connected to both ends of the first rotating arm, respectively. The first slider is slidably connected to the movable seat, and the first connecting block is fixedly connected to the fixed seat. A second slider and a second connecting block are rotatably connected to both ends of the second rotating arm, respectively. The second slider is slidably connected to the fixed seat, and the second connecting block is fixedly connected to the movable seat.

7. The camera module tooling fixture according to claim 6, characterized in that: The folding bracket further includes a rotating shaft, which is rotatably mounted on the movable seat or the fixed seat. When the rotating shaft is rotatably mounted on the movable seat, the first slider is threaded onto the rotating shaft, and the first slider and the movable seat are fixed together along the circumference of the rotating shaft. When the rotating shaft is rotatably mounted on the fixed seat, the second slider is threaded onto the rotating shaft, and the second slider and the fixed seat are fixed together along the circumference of the rotating shaft.

8. The camera module tooling fixture according to any one of claims 1-7, characterized in that: The fixed bracket has a fixed column, which is tapered.

9. The camera module tooling fixture according to any one of claims 1-7, characterized in that: The camera module tooling fixture also includes a first scale bar and a second scale bar. The length direction of the first scale bar and the second scale bar is consistent with the direction of the optical axis of the camera module. The first scale bar is fixedly connected to the support member and slides against one side of the second scale bar.

10. A camera module focusing system, characterized in that, The device includes a test chart, a display device, and a camera module fixture as described in any one of claims 1-9. The display device is used to electrically connect to the camera module fixed on the fixed bracket to display the image captured by the camera module on the test chart.

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