Camera module test equipment

Abstract

The invention relates to the technical field of camera module testing, in particular to camera module testing equipment, which comprises a bracket; the rotating assembly comprises a rotating plate and a first rotating column fixed to the side edge of the rotating plate, and the first rotating column can be rotationally connected to the support in the first direction; the module fixing device comprises a base plate and an upper cover, the upper cover is rotationally connected to the base plate and used for clamping a to-be-tested camera module installed on the base plate, the base plate can be rotationally connected to the rotating plate in the second direction, and the second direction is perpendicular to the first direction; the laser tester is installed on the support and located over the module fixing device in the second direction. The camera module test equipment can test the camera module in multiple directions and is simple in structure.

Description

Technical Field

[0001] The present invention relates to the technical field of camera module testing, and particularly relates to a camera module testing device. Background Art

[0002] With the popularization of smart phones, the functions of mobile phones have been rapidly improved and increased. As one of the core components of mobile phones, camera modules have also developed accordingly. Therefore, the requirements for their appearance, performance, etc. are very strict.

[0003] Existing camera modules have an OIS (Optical Image Stabilizer) anti-shake function, which is a technology that drives the lens to move to counteract the shake of the camera module to ensure clear imaging of the camera module. And existing camera modules can achieve shaking along the optical axis direction and perpendicular to the optical axis direction. During the production process of such camera modules, it is usually necessary to perform OIS anti-shake testing on the camera modules to ensure that the OIS anti-shake function of the camera modules meets the requirements.

[0004] However, existing testing devices, by fixing the camera module and only testing the anti-shake in the optical axis direction of the camera module, cannot achieve the shaking test of the camera module in multiple directions. Therefore, there is an urgent need for a testing device that can achieve the multi-directional testing of the camera module and has a simple structure. Summary of the Invention

[0005] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art.

[0006] The present invention provides a camera module testing device, including: a bracket; a rotating assembly, including a rotating plate and a first rotating column fixed to the side of the rotating plate, the first rotating column being rotatably connected to the bracket around a first direction; a module fixing device, including a chassis and an upper cover, the upper cover being rotatably connected to the chassis and used for clamping and installing the to-be-tested camera module on the chassis, and the chassis being rotatably connected to the rotating plate around a second direction, the second direction being perpendicular to the first direction; a laser tester, installed on the bracket and located directly above the module fixing device along the second direction.

[0007] Further, the rotating plate includes a rotating surface for carrying the chassis, and the rotating surface is provided with a second rotating column, and the chassis is rotatably connected to the second rotating column around the second direction.

[0008] Further, a boss is provided in the middle of the chassis, and a positioning groove is provided on the boss, and the positioning groove is used for accommodating the to-be-tested camera module.

[0009] Further, the module fixing device further includes a ball bearing. A bearing groove penetrating the chassis is formed in the middle of the positioning groove. The ball bearing is arranged in the bearing groove, and the outer diameter of the ball bearing is fixedly connected to the boss. The second rotating column extends into the bearing groove and is fixedly connected to the inner diameter of the ball bearing.

[0010] Further, the module fixing device further includes a slider and a spring. A sliding groove is further arranged on the chassis on the side of the boss. The slider is arranged in the sliding groove and can slide towards the boss. The spring is clamped between the boss and the slider.

[0011] Further, the module fixing device further includes a PIN needle and a wire harness. The PIN needle is fixed on the slider, one end of the PIN needle is connected to the wire harness, and the other end protrudes from the slider and is arranged towards the boss, and can be used to contact the to-be-tested camera module.

[0012] Further, a first inclined surface is arranged on one side of the slider away from the boss, and a second inclined surface is arranged on one side of the upper cover facing the chassis. When the second inclined surface presses the first inclined surface, it is used to push the slider to slide towards the boss.

[0013] Further, a limiting groove is formed on the rotating surface. The limiting groove includes a first limiting surface and a second limiting surface arranged oppositely;

[0014] A first accommodating groove is formed on the bottom surface of the chassis facing the rotating surface. A magnetic attracting strip is arranged in the first accommodating groove, and the magnetic attracting strip protrudes from the first accommodating groove;

[0015] Wherein, the magnetic attracting strip can rotate in the limiting groove and respectively abuts against the first limiting surface and the second limiting surface, and is used to limit the rotation angle of the chassis.

[0016] Further, a first magnet groove and a second magnet groove are formed in the limiting groove. The first magnet groove is close to the first limiting surface, the second magnet groove is close to the second limiting surface. A first magnet is arranged in the first magnet groove, and a second magnet is arranged in the second magnet groove.

[0017] Further, an avoidance groove penetrating the rotating plate is further formed on the rotating surface. The avoidance groove is arranged around the second rotating column.

[0018] Further, the bracket includes a bottom plate, a first side plate, a second side plate and a third side plate; the first side plate and the second side plate are distributed on both sides of the bottom plate along the first direction, and the first rotating column is rotationally connected to the first side plate and the second side plate; the third side plate is installed on the bottom plate and is used to install the laser tester.

[0019] Further, the bracket further includes a limit block, which is installed on the bottom plate and close to the side of the rotating plate. A third magnet and a fourth magnet are arranged on the limit block at an angular distribution; a first limit metal plate and a second limit metal plate are also arranged on the side of the rotating plate; before the rotating plate rotates around the first direction, the third magnet adsorbs and abuts against the first limit metal plate; after the rotating plate rotates around the first direction, the fourth magnet adsorbs and abuts against the second limit metal plate. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the camera module testing device provided by the present invention;

[0021] Figure 2 is an exploded view of a part of the camera module testing device provided by the present invention;

[0022] Figure 3 is a schematic structural diagram of the module fixing device provided by the present invention;

[0023] Figure 4 is an exploded view of the module fixing device provided by the present invention;

[0024] Figure 5 is Figure 4 a schematic diagram of another perspective;

[0025] Figure 6 is a schematic structural diagram of the chassis provided by the present invention;

[0026] Figure 7 is a schematic structural diagram of the rotating plate provided by the present invention;

[0027] Figure 8 is an exploded view of the rotating assembly and a part of the bracket provided by the present invention. Detailed Embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] It should be noted that for the convenience of understanding this application, as Figure 1 、 Figure 2 and Figure 8 shown, the first direction is the X-axis, the second direction is the Y-axis, and the first direction is perpendicular to the second direction.

[0032] Specifically, as Figure 1 shown, the camera module testing device includes a bracket 1, a rotating assembly 2, a module fixing device 3, and a laser tester 4. Among them, the module fixing device 3 is used to install and fix the camera module 5 to be tested. The module fixing device 3 is installed on the rotating assembly 2 and can rotate around the second direction (Y-axis). The rotating assembly 2 is rotatably connected to the bracket 1 around the first direction (X-axis). The module fixing device 3 and the rotating assembly 2 can be rotatably connected through an intermediate structure such as a ball or a cylinder. The laser tester 4 is installed on the bracket 1 and is located directly above the module fixing device 3 along the second direction, and is used to send a laser test signal to the camera module 5 to be tested and receive the laser signal reflected back by the camera module 5 to be tested. It can be understood that when the laser test signal irradiates on the lens of the camera module 5 to be tested, since the lens shakes after the camera module 5 is powered on, it is judged whether the lens shake is appropriate according to the received reflected laser test signal.

[0033] Among them, as Figure 2As shown, the rotating assembly 2 includes a rotating plate 21 and a first rotating column 22 fixed to the side of the rotating plate 21. The first rotating column 22 is rotatably connected to the bracket 1 about a first direction, that is, the rotating plate 21 is rotatably connected to the bracket 1 through the first rotating column 22. The first rotating column 22 is of a cylindrical structure, which is convenient for being inserted into the bracket 1 and rotating relative to the bracket 1. Preferably, there are two first rotating columns 22, which are symmetrically distributed on both sides of the rotating plate 21 along the first direction to ensure uniform force during the rotation of the rotating plate 21.

[0034] As Figure 2 and Figure 3 shown, the module fixing device 3 includes a chassis 31 and an upper cover 32. The upper cover 32 is rotatably connected to the chassis 31 and is used to clamp the camera module 5 to be tested mounted on the chassis 31. Among them, the chassis 31 is rotatably connected to the rotating plate 21 about a second direction, so that the camera module 5 to be tested can rotate about the second direction, improving the test angle of the camera module to be tested. Among them, the upper cover 32 is connected to the chassis 31 through a rotating shaft (not shown in the figure), which is convenient for the upper cover 32 to open and close with the chassis 31 and is convenient for fixing and clamping the camera module 5 to be tested.

[0035] The camera module 5 to be tested mounted on the module fixing device 3 rotates around the bracket 1 through the rotating assembly 2 and rotates around the rotating assembly 2 through the module fixing device 3 respectively, realizing the test of the camera module 5 to be tested in multiple directions and ensuring the test accuracy of the camera module 5 to be tested. Moreover, the rotating plate 21 of the rotating assembly 2 rotates around the first direction through the first rotating column 22, and the chassis 31 of the module fixing device 3 rotates around the rotating plate 21 around the second direction. The structure is simple and convenient to operate. The second rotating column 23 is of a cylindrical structure, which is convenient for the alignment and assembly of the chassis 31 and the rotating plate 21.

[0036] In an embodiment, the rotating plate 21 includes a rotating surface 211 for carrying the chassis 31. The rotating surface 211 is provided with a second rotating column 23, and the chassis 31 is rotatably connected to the second rotating column 23 about a second direction. That is, by placing the chassis 31 on the rotating surface 211 of the rotating plate 21 and restricting the rotation direction and position of the chassis 31 through the second rotating column 23, it is ensured that the rotation mode of the chassis 31 relative to the rotating plate 21 is simple and the structure is simple. Preferably, the second rotating column 23 is of a cylindrical structure.

[0037] In an embodiment, please refer to Figure 4 and Figure 6 for reference. A boss 311 is provided in the middle of the chassis 31, and a positioning groove 312 is opened on the boss 311. The positioning groove 312 is used to accommodate the camera module 5 to be tested. By providing the boss 311 structure with the positioning groove 312, it is convenient to install the camera module 5 to be tested, and the positioning groove 312 can pre-position the camera module 5 to be tested.

[0038] In one embodiment, as Figure 4 shown, the module fixing device 3 further includes a ball bearing 33. A bearing groove 3121 penetrating through the chassis 31 is formed in the middle of the positioning groove 312. The ball bearing 33 is disposed in the bearing groove 3121, and the outer diameter of the ball bearing 33 is fixedly connected to the boss 311. The second rotating column 23 extends into the bearing groove 3121 and is fixedly connected to the inner diameter of the ball bearing 33. It should be noted that the ball bearing 33 is a common rolling bearing, which includes an inner diameter (inner ring) and an outer diameter (outer ring), and the outer diameter can rotate relative to the inner diameter. The boss 311 of the chassis 31 is fixed to the outer diameter of the ball bearing 33, and the second rotating column 23 of the rotating plate 21 is fixed to the inner diameter of the ball bearing 33. That is, the chassis 31 can rotate relative to the rotating plate 21 around the second direction through the ball bearing 33. Using the ball bearing 33 as the connection medium between the chassis 31 and the rotating plate 21 ensures convenient relative rotation between the two. And by forming the bearing groove 3121 in the middle of the positioning groove 312, the structure of the boss 311 is fully utilized to install the ball bearing 33. Preferably, the bearing groove 3121 is a stepped groove structure, and the part with a larger diameter of the bearing groove 3121 is close to the positioning groove 312, and the part with a smaller diameter of the bearing groove 3121 is close to the rotating plate 21, which is convenient for better installation of the ball bearing 33 and ensures that the ball bearing 33 can be stably connected to the second rotating column 23 while also being stably connected to the boss 311.

[0039] In one embodiment, as Figure 3 and Figure 6 shown, the module fixing device 3 further includes a slider 34 and a spring 35. A sliding groove 313 is further provided on the chassis 31 on the side of the boss 311. The slider 34 is disposed in the sliding groove 313 and can slide towards the boss 311. The spring 35 is clamped between the boss 311 and the slider 34. When the slider 34 slides towards the boss 311, it can be used to clamp the to-be-tested camera module 5 located in the positioning groove 312. That is, in addition to being fixed by the chassis 31 and the upper cover 32, the to-be-tested camera module 5 can further be clamped and fixed by the slider 34 to ensure stable installation of the to-be-tested camera module 5. Among them, a spring 35 is provided between the slider 34 and the boss 311 to ensure that the slider 34 can move away from the boss 311 without external force, so that the to-be-tested camera module 5 will not be interfered by the slider 34 during installation. Preferably, there are two sliders 34, sliding grooves 313 and springs 35, and they are symmetrically distributed on both sides of the boss 311 to ensure uniform force when the to-be-tested camera module 5 is clamped. In a preferred solution, spring grooves (not shown in the figure) are provided on the opposite surfaces of the convex block and the slider 34, and both ends of the spring 35 are respectively disposed in the spring grooves to ensure that the spring 35 will not break away between the convex block and the slider 34 when being compressed.

[0040] In one embodiment, the module fixing device 3 further includes PIN pins 36 and a flexible cable 37. The PIN pins 36 are fixed on the slider 34, one end of the PIN pins 36 is connected to the flexible cable 37, and the other end protrudes from the slider 34 and faces the boss 311, and can be used to contact the camera module 5 to be tested. It should be noted that the PIN pins 36 are also called header pins, plug pins and connector pins, which are metal pin-shaped components used for electrical connection in electronic devices, and are used to electrically connect the camera module 5 to be tested with external devices. The camera module 5 to be tested has an exposed pin structure. By contacting the PIN pins 36 with the pins of the camera module 5 to be tested and then connecting to the external device through the flexible cable 37, the OIS anti-shake function of the camera module 5 to be tested can be controlled, and thus the test of the OIS anti-shake function of the camera module 5 to be tested can be realized. The side of the PIN pins 36 facing the boss 311 needs to protrude from the slider 34 to ensure that the PIN pins 36 have enough length to contact the camera module 5 to be tested and ensure the stability of the test. Preferably, the PIN pins 36 are arranged through the slider 34 to ensure the stable installation of the PIN pins 36. At the same time, considering that the structure of the PIN pins 36 is relatively thin, installing them in the slider 34 can prevent the PIN pins 36 from being damaged.

[0041] In one embodiment, as Figure 3 shown, a first inclined surface 341 is provided on the side of the slider 34 away from the boss 311, and a second inclined surface 321 is provided on the side of the upper cover 32 facing the chassis 31. When the second inclined surface 321 presses against the first inclined surface 341, it is used to push the slider 34 to slide towards the boss 311. Among them, the first inclined surface 341 and the second inclined surface 321 are two parallel and adapted inclined surfaces. When the upper cover 32 is covered towards the chassis 31, the second inclined surface 321 will press against the first inclined surface 341. Since the slider 34 is slidably arranged in the sliding groove 313 and the first inclined surface 341 is located on the side of the slider 34 away from the boss 311, that is, the upper cover 32 will press the slider 34 to move towards the boss 311, and thus approach the camera module 5 to be tested located in the positioning groove 312 of the boss 311. Preferably, two first inclined surfaces 341 are provided on each slider 34, and two second inclined surfaces 321 are provided on the corresponding upper cover 32 to ensure the stable movement of the slider 34 and prevent deviation.

[0042] In one embodiment, as Figure 2 and Figure 7 shown, a limiting groove 212 is formed on the rotating surface 211. The limiting groove 212 includes a first limiting surface 2121 and a second limiting surface 2122 which are oppositely arranged, that is, the first limiting surface 2121 and the second limiting surface 2122 are two groove wall surfaces of the limiting groove 212. As Figure 4 and Figure 5As shown, a first receiving groove 314 is formed in the bottom surface of the chassis 31 facing the rotating surface 211. A magnetic attraction strip 38 is disposed in the first receiving groove 314, and the magnetic attraction strip 38 protrudes from the first receiving groove 314. The magnetic attraction strip 38 can rotate in the limiting groove 212 and abut against the first limiting surface 2121 and the second limiting surface 2122 respectively to limit the rotation angle of the chassis 31. It can be understood that the chassis 31 is disposed on the rotating surface 211 and can rotate about the second direction. By providing the limiting groove 212 on the rotating surface 211 and providing the protruding magnetic attraction strip 38 at the place where the chassis 31 faces the limiting groove 212, it is ensured that the magnetic attraction strip 38 can abut against the first limiting surface 2121 and the second limiting surface 2122, thereby limiting the rotation angle of the chassis 31. Preferably, the limiting groove 212 is provided at the edge of the rotating surface 211 to reduce the difficulty of grooving the rotating surface 211. Preferably, the included angle between the first limiting surface 2121 and the second limiting surface 2122 is 90°, thereby limiting the rotation angle of the chassis 31 relative to the rotating plate 21 to 90°, that is, the module fixing device 3 can rotate 90° about the second direction, thereby controlling the rotation angle of the module fixing device 3. Of course, the included angle between the first limiting surface 2121 and the second limiting surface 2122 can also be other values, which can be adjusted by the user according to the rotation angle required for testing the to-be-tested camera module 5, and will not be elaborated here.

[0043] In one embodiment, as Figure 7 shown, a first magnet groove 2123 and a second magnet groove 2124 are formed in the limiting groove 212. The first magnet groove 2123 is close to the first limiting surface 2121, the second magnet groove 2124 is close to the second limiting surface 2122. A first magnet 24 is disposed in the first magnet groove 2123, and a second magnet 25 is disposed in the second magnet groove 2124. For the convenience of understanding, Figure 7 in the figure, the first magnet 24 and the second magnet 25 are exploded and disposed above the first magnet groove 2123 and the second magnet groove 2124. By providing the first magnet 24 and the second magnet 25 to adapt to the magnetic attraction strip 38, it is ensured that the chassis 31 can be fixed after rotation. It can be understood that since the magnetic attraction strip 38 is disposed on the surface of the chassis 31 facing the limiting groove 212, when the magnetic attraction strip 38 abuts against the first limiting surface 2121 or the second limiting surface 2122, the first magnet 24 close to the first limiting surface 2121 or the second magnet 25 close to the second limiting surface 2122 can adsorb the magnetic attraction strip 38, thereby fixing the rotation of the chassis 31 and ensuring that the to-be-tested camera module 5 will not rotate randomly during the test, thus affecting the test.

[0044] In one embodiment, an avoidance groove 213 penetrating through the rotating plate 21 is further formed on the rotating surface 211, and the avoidance groove 213 is arranged around the second rotating column 23. Considering that a flexible cable 37 is arranged on the module fixing device 3, and the flexible cable 37 will rotate around the second rotating column 23 following the module fixing device 3, the rotation of the flexible cable 37 is avoided by arranging the avoidance groove 213 to ensure the normal progress of the test.

[0045] In one embodiment, as Figure 8 shown, the bracket 1 includes a bottom plate 11, a first side plate 12, a second side plate 13 and a third side plate 14, and the four form the basic framework of the bracket 1. Among them, the first side plate 12 and the second side plate 13 are distributed on both sides of the bottom plate 11 along the first direction, and the first rotating column 22 is rotatably connected to the first side plate 12 and the second side plate 13, that is, the rotating assembly 2 is installed between the first side plate 12 and the second side plate 13 through the first rotating column 22 to ensure that the rotation of the rotating assembly 2 around the first direction is not restricted. The third side plate 14 is installed on the bottom plate 11 and located at the edges of the first side plate 12 and the second side plate 13 to ensure that the laser tester 4 installed on the third side plate 14 does not affect the rotation of the rotating assembly 2.

[0046] In one embodiment, the bracket 1 further includes a limiting block 15, the limiting block 15 is installed on the bottom plate 11 and close to the side of the rotating plate 21, and a third magnet 16 and a fourth magnet 17 distributed at an angle are arranged on the limiting block 15. Moreover, a first limiting metal plate 26 and a second limiting metal plate 27 are further arranged on the side of the rotating plate 21, the first limiting metal plate 26 is used to adapt to the third magnet 16, and the second limiting metal plate 27 is used to adapt to the fourth magnet 17. Before the rotating plate 21 rotates around the first direction, the third magnet 16 adsorbs and abuts against the first limiting metal plate 26 to limit the position of the rotating plate 21, that is, to ensure that the optical axis of the to-be-tested camera module 5 is parallel to the second direction; after the rotating plate 21 rotates around the first direction, the fourth magnet 17 adsorbs and abuts against the second limiting metal plate 27 to limit the position of the rotating plate 21, that is, to ensure that the optical axis of the to-be-tested camera module 5 is perpendicular to the second direction. The functions of the first limiting metal plate 26, the second limiting metal plate 27, the third magnet 16 and the fourth magnet 17 are to limit the positions of the rotating plate 21 before and after rotation.

[0047] To understand this solution, the following provides the operation instructions of the camera module testing device.

[0048] Step 1: Open the upper cover 32 of the module fixing device 3, place the camera module 5 to be tested into the positioning groove 312 of the boss 311, and then cover the upper cover 32 with the chassis 31. During the process of covering the upper cover 32 with the chassis 31, the first inclined surface 341 of the slider 34 is extruded by the second inclined surface 321 of the upper cover 32, causing the slider 34 to be fixed towards the camera module 5 to be tested. Further, the PIN pin 36 fixed on the slider 34 contacts the camera module 5 to be tested. Then turn on the laser tester 4 to emit a laser test signal to the camera module 5 to be tested. At the same time, the external device sends an OIS anti-shake command to the camera module 5 to be tested through the flexible cable 37 and the PIN pin 36, causing the camera module 5 to be tested to shake, and completing the shake test of the lens of the camera module 5 to be tested in the second direction parallel.

[0049] Step 2: Rotate the module fixing device 3 installed on the rotating plate 21 around the first direction. At this time, the camera module 5 to be tested installed on the module fixing device 3 rotates synchronously around the first direction. After rotating a certain angle, the second limit metal plate 27 adsorbs with the fourth magnet 17 to fix the position of the rotating plate 21. Then turn on the laser tester 4 to emit a laser test signal to the camera module 5 to be tested. At the same time, the external device sends an OIS anti-shake command to the camera module 5 to be tested through the flexible cable 37 and the PIN pin 36, causing the camera module 5 to be tested to shake, and completing the shake test of the lens of the camera module 5 to be tested perpendicular to the second direction.

[0050] Step 3: After completing Step 2, rotate the chassis 31 around the second rotating column 23, that is, the camera module 5 to be tested completes the rotation around the second rotating column 23. After rotating a certain angle, the magnetic attraction strip 38 adsorbs with the first magnet 24 or the second magnet 25 to fix the position and angle of the chassis 31. Then turn on the laser tester 4 to emit a laser test signal to the camera module 5 to be tested. At the same time, the external device sends an OIS anti-shake command to the camera module 5 to be tested through the flexible cable 37 and the PIN pin 36, causing the camera module 5 to be tested to shake, and completing the shake test of the lens of the camera module 5 to be tested at another angle perpendicular to the second direction.

[0051] It should be noted that the camera module 5 to be tested can achieve OIS anti-shake in three directions (X-axis, Y-axis, and Z-axis), that is, our test needs to be carried out in all three directions of the camera module 5 to be tested, which can be understood as along the optical axis direction and perpendicular to the optical axis direction of the camera module 5 to be tested. The test along the optical axis direction can be considered as the test in the initial state, that is, the test when the camera module 5 to be tested is installed on the module fixing device 3 and has not rotated around the first direction. The direction perpendicular to the optical axis includes two directions (which can be understood as the X-axis and the Z-axis perpendicular to the Y-axis). When the camera module 5 to be tested rotates around the first direction, the OIS anti-shake in one direction is tested. When the camera module 5 to be tested rotates around the rotating assembly 2, the OIS anti-shake in the other direction is tested.

[0052] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. A camera module testing device, characterized in that: include: Bracket; A rotating assembly, comprising a rotating plate and a first rotating column fixed to a side of the rotating plate, wherein the first rotating column is rotatable around a first direction and connected to the bracket; A module fixing device, comprising a chassis and an upper cover, wherein the upper cover is rotatably connected to the chassis and used to clamp the camera module to be tested mounted on the chassis, and the chassis is rotatably connected to the rotating plate around a second direction, wherein the second direction is perpendicular to the first direction; A laser tester is mounted on the bracket and is located directly above the module fixing device along the second direction.

2. The camera module testing device according to claim 1, characterized in that: The rotating plate comprises a rotating surface for carrying the chassis, the rotating surface is provided with a second rotating column, and the chassis is connected to the second rotating column so as to be rotatable around the second direction.

3. The camera module testing device according to claim 2, characterized in that: A boss is arranged in the middle of the chassis, and a positioning groove is opened on the boss. The positioning groove is used to accommodate the camera module to be tested.

4. The camera module testing device according to claim 3, characterized in that: The module fixing device also includes a ball bearing. A bearing groove that passes through the chassis is opened in the middle of the positioning groove. The ball bearing is arranged in the bearing groove and the outer diameter of the ball bearing is fixedly connected to the boss. The second rotating column extends into the bearing groove and is fixedly connected to the inner diameter of the ball bearing.

5. The camera module testing device according to claim 4, characterized in that: The module fixing device also includes a slider and a spring. The chassis is also provided with a sliding groove located on the side of the boss. The slider is arranged in the sliding groove and can slide toward the boss. The spring is clamped between the boss and the slider.

6. The camera module testing device according to claim 5, characterized in that: The module fixing device also includes a PIN needle and a flat cable. The PIN needle is fixed on the slider, and one end of the PIN needle is connected to the flat cable, while the other end protrudes out of the slider and is arranged toward the boss, and can be used to contact the camera module to be tested.

7. The camera module testing device according to claim 6, characterized in that: A first inclined surface is arranged on a side of the slider away from the boss, and a second inclined surface is arranged on a side of the upper cover facing the chassis. When the second inclined surface presses the first inclined surface, it is used to push the slider to slide toward the boss.

8. The camera module testing device according to claim 2, characterized in that: A limiting groove is provided on the rotating surface, and the limiting groove includes a first limiting surface and a second limiting surface which are arranged opposite to each other; The bottom surface of the chassis facing the rotating surface is provided with a first receiving groove, a magnetic attraction strip is arranged in the first receiving groove, and the magnetic attraction strip protrudes out of the first receiving groove; The magnetic strip can rotate in the limiting groove and abut against the first limiting surface and the second limiting surface respectively, so as to limit the rotation angle of the chassis.

9. The camera module testing device according to claim 8, characterized in that: The limiting groove is provided with a first magnet groove and a second magnet groove, the first magnet groove is close to the first limiting surface, the second magnet groove is close to the second limiting surface, the first magnet groove is provided with a first magnet, and the second magnet groove is provided with a second magnet.

10. The camera module testing device according to claim 2, characterized in that: The rotating surface is also provided with an avoidance groove penetrating the rotating plate, and the avoidance groove is arranged around the second rotating column.

11. The camera module testing device according to claim 1, characterized in that: The bracket includes a bottom plate, a first side plate, a second side plate and a third side plate; The first side plate and the second side plate are distributed on both sides of the base plate along the first direction, and the first rotating column is rotatably connected to the first side plate and the second side plate; the third side plate is installed on the base plate and is used to install the laser tester.

12. The camera module testing device according to claim 11, characterized in that: The bracket further comprises a limit block, which is mounted on the bottom plate and close to the side of the rotating plate, and the limit block is provided with a third magnet and a fourth magnet distributed at an angle; The side of the rotating plate is also provided with a first limiting metal plate and a second limiting metal plate; Before the rotating plate rotates around the first direction, the third magnet is adsorbed and pressed against the first limiting metal plate; after the rotating plate rotates around the first direction, the fourth magnet is adsorbed and pressed against the second limiting metal plate.

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