Camera module testing device

Abstract

The utility model relates to the field of testing devices, and discloses a camera module testing device, which comprises a bottom frame; the photographing plate can move back and forth on the bottom frame in the linear direction; the bracket is connected to the bottom frame; the test jig is connected to the support, the test jig is located above the photographing plate, a hole is formed in the bottom side of the test jig, and the hole faces the moving path of the photographing plate, the performance test of the camera module for photographing a moving object is achieved, and therefore the accuracy of judgment on the performance of the camera module is improved, and the test efficiency of the camera module is improved. And the production quality of the camera module can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of test devices, in particular to a kind of camera module testing device. BACKGROUND

[0002] When the mobile shooting performance test is carried out to camera module, the mobile photograph test is usually carried out to finished product mobile phone or camera at present, i.e. the photographed object is in static state, and the mobile phone or camera is in constant change position to carry out photograph test. This test can test the focusing response speed of mobile phone or camera to object in the moving process, but cannot reflect the reaction speed of mobile phone or camera to photographed object movement in the case of photographed object movement. Therefore, a kind of test device for camera module to photograph moving goods is urgently needed. SUMMARY

[0003] The utility model aims at providing a kind of camera module testing device to solve one or more technical problems existing in prior art, at least provide a kind of beneficial selection or create conditions.

[0004] The utility model solves the technical problem of the solution scheme:

[0005] A kind of camera module testing device, comprising: underframe;Photographing plate, it can be reciprocated along straight line direction on the underframe;Support, it is connected to the underframe;Test fixture, it is connected to the support, the test fixture is located above the photographing plate, the test fixture bottom side is provided with aperture, and the aperture is towards the moving path of the photographing plate.

[0006] The technical scheme at least has the following beneficial effects: the camera module to be tested is placed in test fixture, and the camera module is fixed by test fixture, and the camera module can be photographed below the aperture in the bottom side of test fixture, when the camera module needs to be tested, the camera module is fixed in test fixture and does not move, and the photographing plate moves below the camera module, since the range of camera module downward shooting from aperture is just for the moving path of photographing plate, when photographing plate passes through the camera module directly below, camera module works, and the moving photographing plate is captured and photographed, so that the performance test of camera module to moving goods is realized, thereby the accuracy of camera module performance judgment is improved, and the production quality of camera module is improved.

[0007] As a further improvement of the above technical solution, a linear drive is arranged on the base frame, the linear drive is drivingly connected with an adapter plate, the linear drive can drive the adapter plate to reciprocate along a linear direction, and the photographing plate is connected to the adapter plate. The linear drive can provide the adapter plate with a driving force for reciprocating along the linear direction, and the photographing plate is mounted on the adapter plate. When it is necessary to test the photographing of the camera module, the linear drive drives the photographing plate to move along the linear direction through the adapter plate to pass below the camera module, and after the camera module completes photographing, the linear drive drives the photographing plate to return to the original position along the linear direction through the adapter plate to prepare for the next test.

[0008] As a further improvement of the above technical solution, a first sensor is connected to the base frame, a sensing sheet is connected to the adapter plate, a camera driving module is arranged in the test fixture, the camera driving module is electrically connected to the sensing sheet, and when the photographing plate moves below the hole, the camera driving module is configured to be triggered when the sensing sheet moves to the sensing end of the first sensor. When it is necessary to test the performance of the camera module, the camera module is assembled into the test fixture and electrically connected to the camera driving module, the photographing plate moves along the linear direction and passes below the camera module, at this time, the sensing sheet on the adapter plate passes the sensing end of the first sensor, so that the first sensor is triggered, and the camera driving module in the test fixture controls the camera module to be tested to work, and the passing photographing plate is captured and photographed. In this way, the accuracy of the camera module in controlling the photographing test of the moving object can be improved.

[0009] As a further improvement of the above technical solution, a second sensor is arranged at the stroke position of the adapter plate, and the linear drive is configured to drive the adapter plate to return when the sensing sheet moves to the sensing end of the second sensor. The linear drive drives the photographing plate to move along the linear direction through the adapter plate in one direction, when the photographing plate passes below the camera module and the camera module completes photographing, the adapter plate moves to the end of the stroke, at this time, the sensing sheet on the adapter plate passes the sensing end of the second sensor, so that the second sensor is triggered, and the linear drive drives the adapter plate to move in the opposite direction to return to the original position.

[0010] As a further improvement of the above technical solution, a third sensor is arranged at the stroke position of the adapter plate, and the linear drive is configured to stop working when the sensing sheet moves to the sensing end of the third sensor. When the camera module completes the photographing test of the photographing plate and the adapter plate returns to the original position, the sensing sheet on the adapter plate passes the sensing end of the third sensor, so that the third sensor is triggered, and the linear drive stops working to complete the photographing test.

[0011] As a further improvement of the above technical solution, the straight line driving member is an electric screw rod. The electric screw rod provides driving force for the adapter plate to move back and forth in a straight line direction, so that the shooting plate passes through the camera module directly below and returns to the reset position. During testing, the speed of the adapter plate moving can be controlled according to the testing needs, so as to better meet the different testing performance requirements.

[0012] As a further improvement of the above technical solution, the shooting plate is detachably connected to the adapter plate. The shooting plate is disassembled from the adapter plate, and the shooting plate can be replaced according to different testing needs, improving the flexibility and practicality of testing the camera module.

[0013] As a further improvement of the above technical solution, the support includes a telescopic rod and a supporting plate. The telescopic rod is connected to the base frame. The telescopic rod can be telescoped and positioned in the up-down direction. The supporting plate is connected to the top end of the telescopic rod. The testing fixture is connected to the supporting plate. The supporting plate is provided with an avoiding opening corresponding to the position of the hole. Before testing, the telescopic rod can be telescoped and adjusted in the up-down direction, so as to position the supporting plate to the required height. Thus, the distance between the camera module and the shooting plate can be adjusted according to different testing needs, so as to meet different testing distance requirements.

[0014] As a further improvement of the above technical solution, the telescopic rod includes a sleeve, a rod body and a top wire. The bottom end of the sleeve is connected to the base frame. The top end of the rod body is connected to the bottom side of the supporting plate. The bottom end of the rod body is inserted into the top end of the sleeve. The top wire is connected to the outside of the sleeve and presses against the rod body. When the telescopic rod needs to be telescoped and adjusted, the top wire outside the sleeve is loosened, so that the top wire is away from the rod body. At this time, the rod body can be moved up and down, and the depth of the rod body inserted into the sleeve is adjusted, so as to adjust the height of the camera module. After completion, the top wire outside the sleeve is locked again, so that the top wire presses against the outside of the rod body, thereby keeping the rod body and the sleeve relatively locked and positioned.

[0015] As a further improvement of the above technical solution, the testing fixture and the supporting plate are detachably connected. When different camera modules need to be replaced, the testing fixture can be disassembled and replaced from the supporting plate to adapt to different camera modules. Thus, the testing needs of different camera modules are better met, and the universality of the whole testing device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly described below. Obviously, the described drawings are only a part of the embodiments of the present application, not all embodiments, and those skilled in the art can obtain other design schemes and drawings according to these drawings without creating labor.

[0017] Figure 1 is the overall perspective view of the utility model.

[0018] Figure 2 is the left view of the utility model.

[0019] Figure 3 is Figure 2 the A part local amplification schematic view.

[0020] In the drawing: 100 - chassis, 110 - linear drive, 120 - adapter plate, 121 - induction sheet, 130 - first inductor, 140 - second inductor, 150 - third inductor, 200 - photographing plate, 300 - support, 310 - telescopic rod, 311 - sleeve, 312 - rod body, 313 - jackscrew, 320 - supporting plate, 400 - test fixture. DETAILED DESCRIPTION

[0021] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0022] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of up, down, front, back, left, right and the like indicated is based on the orientation or position relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as the limitation of the utility model.

[0023] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than and the like are not included in the number, above, below, within and the like are included in the number. If the first, the second is described, it is only for distinguishing the purpose of technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0024] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0025] Referring to Figure 1 and Figure 2The application discloses a camera module testing device, which comprises a base frame 100, a photographing plate 200, a support 300 and a testing fixture 400. The photographing plate 200 can reciprocate along a straight line on the base frame 100. The support 300 is connected to the base frame 100. The testing fixture 400 is connected to the support 300 and is located above the photographing plate 200. The testing fixture 400 is provided with an opening at the bottom side, and the opening faces the moving path of the photographing plate 200.

[0026] According to the above, the camera module to be tested is placed in the testing fixture 400, and the camera module is fixed by the testing fixture 400. The camera module can capture the lower part through the opening at the bottom side of the testing fixture 400. When the camera module needs to be tested, the camera module is fixed in the testing fixture 400, and the photographing plate 200 moves below the camera module. Since the range of the camera module downwardly photographing from the opening is opposite to the moving path of the photographing plate 200, when the photographing plate 200 passes below the camera module, the camera module works and captures the photographing plate 200. Thus, the performance test of the camera module photographing the moving object is realized, the accuracy of the performance judgment of the camera module is improved, and the production quality of the camera module is improved.

[0027] The driving source for driving the photographing plate 200 to reciprocate is arranged on the base frame 100. Specifically, the linear driving part 110 is arranged on the base frame 100, the linear driving part 110 is drivingly connected with the adapter plate 120, the linear driving part 110 can drive the adapter plate 120 to reciprocate along a straight line, and the photographing plate 200 is connected to the adapter plate 120. The linear driving part 110 can provide the driving force for the adapter plate 120 to reciprocate along a straight line, and the photographing plate 200 is arranged on the adapter plate 120. When the camera module needs to be tested, the linear driving part 110 drives the photographing plate 200 to move along a straight line through the adapter plate 120, so as to pass below the camera module. After the camera module completes photographing, the linear driving part 110 drives the photographing plate 200 to return to the original position along a straight line through the adapter plate 120, so as to prepare for the next test.

[0028] There are various ways to control the camera module to take pictures of the photo-taking board 200, such as manual control. However, in order to control the operation of the camera module more accurately and automatically, in this embodiment, a first sensor 130 is connected to the base frame 100, a sensing plate 121 is connected to the adapter plate 120, and a camera driving module is provided inside the test fixture 400. The camera driving module is electrically connected to the sensing plate 121. When the photo-taking board 200 moves to below the opening, the camera driving module is triggered to work when the sensing plate 121 moves to the sensing end of the first sensor 130. Naturally, the camera driving module has a controller. The controller receives the sensing signal emitted by the first sensor 130, makes a judgment, and then controls the camera module installed in the test fixture 400 to work. The first sensor 130 can be a photoelectric sensor, an infrared sensor, etc. When a performance test of the camera module is required, the camera module is installed in the test fixture 400 and electrically connected to the camera drive module. The photo plate 200 moves in a straight line and passes directly under the camera module. At this time, the sensor 121 on the adapter plate 120 passes through the sensing end of the first sensor 130, causing the first sensor 130 to be triggered. The camera drive module located in the test fixture 400 controls the camera module to be tested to work and capture images of the passing photo plate 200. This can improve the accuracy of controlling the camera module to take pictures of moving objects.

[0029] In order to better control the return of the adapter plate 120 after it has moved to the correct position, in this embodiment, the base frame 100 is provided with a second sensor 140 at the travel position of the adapter plate 120. The linear drive member 110 is configured to drive the adapter plate 120 back when the sensing plate 121 moves to the sensing end of the second sensor 140. The second sensor 140 can be a photoelectric sensor, an infrared sensor, etc. The linear drive 110 first drives the imaging plate 200 to move linearly in one direction via the adapter plate 120. After the imaging plate 200 passes under the camera module and the camera module completes the photo taking, the adapter plate 120 moves to the end of its stroke. At this time, the sensing plate 121 on the adapter plate 120 passes through the sensing end of the second sensor 140, causing the second sensor 140 to be triggered. The linear drive 110 drives the adapter plate 120 to move in the opposite direction to achieve a return and reset. In practical applications, a controller is also configured in the entire device to control the working state of the linear drive 110. The controller receives the signal sent by the second sensor 140 and makes a judgment. When it is determined that the linear drive 110 drives the adapter plate to move to the end of its stroke, the controller controls the second linear drive 110 to move.

[0030] Furthermore, such as Figure 3As shown, the base frame 100 is equipped with a third sensor 150 at the travel position of the adapter plate 120. The linear drive 110 is configured to stop working when the sensing plate 121 moves to the sensing end of the third sensor 150. The third sensor 150 can be a photoelectric sensor, an infrared sensor, etc. When the camera module completes the photo-taking test of the photo-taking board 200 and the adapter plate 120 returns to its position, the sensing plate 121 on the adapter plate 120 passes the sensing end of the third sensor 150, causing the third sensor 150 to be triggered. The linear drive 110 stops working, completing one photo-taking test. Similarly, in practical applications, the controller receives the signal emitted by the third sensor 150 and makes a judgment. When it is determined that the linear drive 110 has driven the adapter plate to return to its reset position, the controller controls the second linear drive 110 to stop working.

[0031] The linear drive component 110 is mainly used to provide driving force for the movement of the imaging plate 200. It can have various structural forms, such as a pneumatic cylinder or a hydraulic cylinder. However, to facilitate the adjustment of the movement state of the imaging plate 200, in this embodiment, the linear drive component 110 is an electric lead screw. The electric lead screw provides a driving force for the adapter plate 120 to reciprocate in a linear direction, causing the imaging plate 200 to pass directly under the camera module and return to its reset position. During testing, the speed at which the electric lead screw drives the adapter plate 120 can be controlled according to testing needs, thereby better meeting different testing performance requirements.

[0032] In actual testing, the corresponding camera board 200 needs to be replaced according to different testing requirements. To better meet usage needs, in this embodiment, the camera board 200 is detachably connected to the adapter plate 120. For example, the camera board 200 can be connected to the adapter plate 120 via clips, or the camera board 200 and the adapter plate 120 can be connected to each other via screws. The camera board 200 can be detached from the adapter plate 120 and replaced according to different testing requirements, improving the flexibility and practicality of camera module testing.

[0033] To better meet the distance adjustment requirements between the camera module and the image capture board 200, in this embodiment, the bracket 300 includes telescopic rods 310 and a support plate 320. Multiple telescopic rods 310 are connected to the base frame 100, and these rods can extend and retract vertically for positioning. The support plate 320 is connected to the top of the multiple telescopic rods 310, and the test fixture 400 is connected to the support plate 320. The support plate 320 has a clearance opening corresponding to the position of the opening. Before testing, the multiple telescopic rods 310 can be extended and retracted vertically to position the support plate 320 at the required height. This allows for adjustment of the distance between the camera module and the image capture board 200 to meet different testing distance requirements.

[0034] There are various structural forms for the telescopic rod 310 to extend and retract and be positioned in the vertical direction. For example, the telescopic rod 310 can be adjusted by using a threaded connection. By changing the position of the threaded connection, the overall height of the telescopic rod 310 can be adjusted. In this embodiment, for each telescopic rod 310, the telescopic rod 310 includes a sleeve 311, a rod body 312, and a set screw 313. The bottom end of the sleeve 311 is connected to the base frame 100, the top end of the rod body 312 is connected to the bottom side of the support plate 320, the bottom end of the rod body 312 is inserted into the top end of the sleeve 311, and the set screw 313 is connected to the outside of the sleeve 311 and presses against the rod body 312. When the telescopic rod 310 needs to be extended or retracted, loosen the set screw 313 on the outside of the sleeve 311 so that the set screw 313 is away from the rod body 312. At this time, the rod body 312 can be moved up and down to adjust the depth of the rod body 312 inserted into the sleeve 311, thereby adjusting the height of the camera module. After completion, tighten the set screw 313 on the outside of the sleeve 311 so that the set screw 313 presses against the outside of the rod body 312, thereby keeping the rod body 312 and the sleeve 311 relatively locked and positioned.

[0035] Each test fixture 400 can be equipped with different slot structures to accommodate the fixing of different camera modules. To better improve the positioning of different camera modules, in this embodiment, the test fixture 400 and the support plate 320 are detachably connected. For example, a connecting plate can be provided on the bottom side of the test fixture 400, and the connecting plate can be fixed to the support plate 320 by screws, or the test fixture 400 can be fixed to the support plate 320 by snap-fit ​​connections. When different camera modules need to be replaced, the test fixture 400 can be removed and replaced from the support plate 320 to accommodate different camera modules, thus better meeting the testing needs of different camera modules and improving the versatility of the entire testing device.

[0036] The test fixture 400 includes a base box and a cover plate. The base box is connected to the support plate 320. The base box has a groove structure for limiting and fixing the camera module. The opening is located at the bottom of the groove structure. One side of the cover plate is rotatably connected to one side of the base box. The cover plate can be rotated open or closed on the support plate 320. When the cover plate is closed, the other side of the cover plate is connected to the base box by a buckle, thereby stably connecting the cover plate and the base box. In this way, the camera module to be tested is quickly positioned using the base box, and then the base box is used to cover and protect the camera module, ensuring the stability of the camera module test.

[0037] The base frame 100 includes a base plate, pillars, and a support plate. Multiple pillars are connected to the base plate, and the support plate is connected to the top side of the multiple pillars, thereby raising the support plate. At this time, the linear drive 110 is installed on the support plate. A slide rail can be set on the support plate, and the movable end of the linear drive 110 is slidably connected to the slide rail, thereby improving the stability of the movable end of the linear drive 110. In addition, multiple pads can be set on the bottom side of the base plate, thereby making the base plate more stable.

[0038] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A camera module testing device, characterized by: The utility model provides a kind of test device, including: Chassis (100); Photographing plate (200), it can reciprocate along straight line direction on the chassis (100); Support (300), it is connected on the chassis (100); Test fixture (400), it is connected on the support (300), the test fixture (400) is located above the photographing plate (200), the bottom side of the test fixture (400) is provided with aperture, and the aperture is towards the moving path of the photographing plate (200). 2.The camera module testing device of claim 1, wherein: The chassis (100) is provided with linear drive (110), the linear drive (110) is driven connection adapter plate (120), the linear drive (110) can drive the adapter plate (120) reciprocate along straight line direction, and the photographing plate (200) is connected on the adapter plate (120). 3.The camera module testing device of claim 2, wherein: The first inductor (130) is connected on the chassis (100), the inductive sheet (121) is connected on the adapter plate (120), the camera drive module is arranged in the test fixture (400), the camera drive module is electrically connected to the inductive sheet (121), and when the photographing plate (200) moves to below the aperture, the camera drive module is configured to trigger work when the inductive sheet (121) moves to the inductive end of the first inductor (130). 4.The camera module testing device of claim 3, wherein: The second inductor (140) is arranged in the travel position of the adapter plate (120) of the chassis (100), and the linear drive (110) is configured to drive the adapter plate (120) back when the inductive sheet (121) moves to the inductive end of the second inductor (140). 5.The camera module testing device of claim 3, wherein: The third inductor (150) is arranged in the travel position of the adapter plate (120) of the chassis (100), and the linear drive (110) is configured to stop working when the inductive sheet (121) moves to the inductive end of the third inductor (150). 6.The camera module testing device of claim 2, wherein: The linear drive (110) is electric screw.

7. The camera module testing device of claim 2, wherein: The photographing plate (200) is detachably connected to the adapter plate (120). 8.The camera module testing device of claim 1, wherein: The support (300) includes telescopic rod (310) and supporting plate (320), a plurality of telescopic rods (310) are connected on the chassis (100), a plurality of telescopic rods (310) can be telescopic and positioned in up-down direction, the supporting plate (320) is connected to the top end of a plurality of telescopic rods (310), the test fixture (400) is connected to the supporting plate (320), and the supporting plate (320) is provided with avoiding opening corresponding to the position of the aperture. 9.The camera module testing device of claim 8, wherein: The telescopic rod (310) includes sleeve (311), rod body (312) and top wire (313), the bottom end of the sleeve (311) is connected on the chassis (100), the top end of the rod body (312) is connected to the bottom side of the supporting plate (320), the bottom end of the rod body (312) is inserted into the top end of the sleeve (311), and the top wire (313) is connected to the outside of the sleeve (311) and is pressed on the rod body (312). 10.The camera module testing device of claim 8, wherein: The test fixture (400) and the supporting plate (320) are detachably connected.

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