Camera module test fixture

Abstract

The embodiment of the utility model provides a camera module test fixture. The camera module test fixture comprises a base, a sliding assembly, a serial port assembly, a mechanical lens, a lens bracket, a camera module and an interface assembly, the sliding assembly, the serial port assembly and the interface assembly are all fixed to the base, and the sliding assembly is used for pressing the camera module on the lens support in a moving mode; the lens bracket is vertically fixed on the base; the mechanical lens is fixed on the lens bracket; the camera module is connected to the lens bracket through a sliding assembly, and the camera module and the mechanical lens are coaxially arranged; the serial port assembly and the camera module are connected to the interface assembly. According to the embodiment of the utility model, the focal length of the camera module is adjusted through the sliding assembly, so that the image acquired by the mechanical lens can be transmitted to the camera module for imaging, the function of the camera module can be detected without re-assembling and disassembling the camera module test fixture during each detection, the detection steps are simple, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of lens module testing technology, and in particular to camera module testing fixtures. Background Technology

[0002] A camera module is a modular device that integrates a camera sensor, image processor, and related interface circuitry. It converts light signals into electrical signals, enabling the transmission of images to the main control board. When testing the functionality of a camera module, its imaging capability is typically considered a key evaluation criterion.

[0003] The existing testing method is to first install the camera module onto the lens bracket, and then install and fix the lens, lens bracket, various circuit boards, and cables into the housing of the barcode reader in sequence before the camera module can be functionally tested. Finally, the functionality of the camera module is judged based on the image displayed on the test software interface.

[0004] Because existing testing methods require disassembling and reassembling circuit boards, cables, and lens brackets for each test, the process is cumbersome and inefficient. Utility Model Content

[0005] This utility model provides a camera module testing fixture, which aims to solve the problems of complex operation process and low testing efficiency in the prior art for testing the function of camera modules.

[0006] This utility model provides a camera module testing fixture, which includes a base, a sliding component, a serial port component, a mechanical lens, a lens bracket, a camera module, and an interface component. The sliding component, the serial port component, and the interface component are all fixed to the base. The lens bracket is vertically fixed to the base, and the mechanical lens is fixed to the lens bracket. The camera module is connected to the lens bracket through the sliding component, and the camera module and the mechanical lens are coaxially arranged. The serial port component and the camera module are both connected to the interface component.

[0007] In some embodiments, the sliding assembly includes a push rod frame and a slider; the slider is slidably connected to the push rod frame; the push rod frame includes a push rod frame body and a first fixing plate, the push rod frame body is fixedly connected to the base through the first fixing plate; the top of the push rod frame body is slidably connected to the slider.

[0008] In some embodiments, the push rod bracket body includes a vertical portion and a horizontal portion; the horizontal portion is perpendicular to the top end of the vertical portion; the first fixing plate is perpendicular to the bottom end of the vertical portion; a sliding groove is provided on the end face of the horizontal portion facing away from the base, and a sliding groove opening is provided on the end face of the horizontal portion facing the lens bracket; the sliding member is slidably connected to the top end of the vertical portion, and the sliding member is slidably connected to the horizontal portion.

[0009] In some embodiments, the slider includes a push rod, a slider, a connecting rod, and a push rod disk; the push rod is vertically fixed to the slider; the slider is located inside the horizontal portion and can slide along the groove; one end of the connecting rod is fixedly connected to the push rod disk, and the other end passes through the groove opening and is fixedly connected to the slider; the push rod disk is parallel to the plane where the lens bracket is located.

[0010] In some embodiments, the slider further includes a module bracket; the module bracket includes a module bracket body and a positioning post; the positioning post is disposed on a first end face of the module bracket body, wherein the first end face of the module bracket body faces the lens bracket; the push rod plate is fixedly connected to a second end face of the module bracket body, the second end face of the module bracket body is opposite to its first end face; the camera module is fixedly connected to the first end face of the module bracket body.

[0011] In some embodiments, the lens bracket includes a first lens bracket, a second lens bracket, and a pressing plate; the first lens bracket is fixedly connected to the second lens bracket via the pressing plate; one side of the pressing plate is fixedly connected to the mechanical lens, and the other side is connected to the first end face of the module bracket body.

[0012] In some embodiments, the serial port assembly includes a serial port bracket, a network port end, and a power supply end; the serial port bracket is provided with a first through hole and a second through hole at intervals; the network port end is adapted to the first through hole; the power supply end is adapted to the second through hole; the serial port bracket is vertically fixed to the base.

[0013] In some embodiments, the serial port assembly further includes a second fixing plate and a fixing member; the second fixing plate is vertically fixed to the bottom of the serial port bracket; the fixing member is sleeved on the network port end and the power supply end.

[0014] In some embodiments, the interface component includes a main control board and an interface board; the main control board is connected to the interface board; the main control board is located between the lower surface of the interface board and the base; the camera module is connected to the main control board; the network port and the power supply are both electrically connected to the interface board.

[0015] In some embodiments, the interface assembly further includes a board cover and a board support frame; the board cover is fixedly connected to the upper surface of the interface board; a first end face of the board support frame is fixedly connected to the base, and a second end face of the board support frame is fixedly connected to the lower surface of the interface board, wherein the first end face of the board support frame faces the base, and the second end face of the board support frame is opposite to its first end face.

[0016] This utility model provides a camera module testing fixture, including a base, a sliding component, a serial port component, a mechanical lens, a lens bracket, a camera module, and an interface component. The sliding component, serial port component, and interface component are all fixed to the base. The sliding component is used to press the camera module against the lens bracket. The lens bracket is vertically fixed to the base, and the mechanical lens is fixed to the lens bracket. The camera module is connected to the lens bracket via the sliding component, and the camera module and mechanical lens are coaxially arranged. The serial port component and the camera module are both connected to the interface component. This utility model allows for adjustment of the camera module's focal length via the sliding component, enabling the image captured by the mechanical lens to be transmitted to the camera module for imaging. This eliminates the need to disassemble and reassemble the camera module testing fixture for each test, simplifying the testing process and improving efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the camera module testing fixture provided in this embodiment of the utility model;

[0019] Figure 2 A rear view structural schematic diagram of the camera module testing fixture provided in this embodiment of the utility model;

[0020] Figure 3 Another structural schematic diagram of the camera module testing fixture provided in this embodiment of the utility model;

[0021] Figure 4 A schematic diagram of the sliding component in the camera module testing fixture provided in this embodiment of the utility model;

[0022] Figure 5 A schematic diagram of the serial port component in the camera module testing fixture provided in this embodiment of the utility model.

[0023] The attached icons are numbered as follows:

[0024] 100. Base; 200. Sliding assembly; 210. Push rod bracket; 211. Push rod bracket body; 212. First fixing plate; 220. Sliding component; 221. Push rod; 222. Slider; 223. Connecting rod; 224. Push rod plate; 225. Module bracket; 300. Serial port assembly; 310. Serial port bracket; 311. First through hole; 312. Second through hole; 320. Network port end; 330. Power supply end; 340. Second fixing plate; 350. Fixing component; 400. Mechanical lens; 500. Lens bracket; 510. First lens bracket; 520. Second lens bracket; 530. Press plate; 600. Camera module; 700. Interface assembly; 710. Main control board; 720. Interface board; 730. Board cover; 740. Board support frame. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0027] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0028] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0029] Please see Figures 1 to 5 , Figure 1 A schematic diagram of the structure of the camera module testing fixture provided in this embodiment of the utility model; Figure 2 A rear view structural schematic diagram of the camera module testing fixture provided in this embodiment of the utility model; Figure 3Another structural schematic diagram of the camera module testing fixture provided in this embodiment of the utility model; Figure 4 A schematic diagram of the sliding component in the camera module testing fixture provided in this embodiment of the utility model; Figure 5 A schematic diagram of the serial port component in the camera module testing fixture provided in this embodiment of the utility model.

[0030] See again Figures 1 to 5 The camera module testing fixture provided in this embodiment includes a base 100, a sliding component 200, a serial port component 300, a mechanical lens 400, a lens bracket 500, a camera module 600, and an interface component 700. The sliding component 200, the serial port component 300, and the interface component 700 are all fixed to the base 100. The lens bracket 500 is vertically fixed to the base 100, and the mechanical lens 400 is fixed to the lens bracket 500. The camera module 600 is connected to the lens bracket 500 through the sliding component 200, and the camera module 600 and the mechanical lens 400 are coaxially arranged. The serial port component 300 and the camera module 600 are both connected to the interface component 700.

[0031] In this embodiment, unlike the traditional process where each test of the camera module 600 requires disassembling and reassembling the circuit board, cables, and lens bracket, this embodiment only requires fixing the camera module 600 to be tested onto the sliding assembly 200. The focal length of the camera module 600 is adjusted by changing the relative distance between the sliding assembly 200 and the mechanical lens 400, allowing the image captured by the mechanical lens 400 to be transmitted to the camera module 600 for imaging. This eliminates the need to disassemble and reassemble the camera module test fixture for each test, thus enabling the functional testing of the camera module 600. Alternatively, the camera module 600 is pressed against the lens bracket 500 by the sliding assembly 200, and the mechanical lens 400 transmits the captured image to the camera module 600 for imaging, thereby achieving the functional testing of the camera module 600.

[0032] Specifically, the serial port component 300 provides power and network connectivity to the camera module 600 and interface component 700, enabling them to operate and transmit signals. Since the camera module 600 and mechanical lens 400 are coaxially aligned, the image captured by the mechanical lens 400 can be imaged on the sensor of the camera module 600. In this embodiment, the mechanical lens 400 can be a 16mm lens. When in operation, the camera module 600 is electrically connected to the interface component 700, allowing it to transmit the image from its sensor to the interface component 700, which then transmits it to the cloud server. The functionality of the camera module 600 can be determined by observing whether the image on the cloud server is normal. If the image is normal, the camera module 600 is functioning correctly; conversely, if the image is abnormal, the camera module 600 is malfunctioning. After verifying the functionality of camera module 600 and obtaining the test results, the tested camera module 600 is removed from the camera module test fixture. This completes the functional testing process for the current camera module 600, and the process can then be repeated with the next camera module 600 to be tested. The entire process is simple and straightforward, greatly improving testing efficiency. Furthermore, the testing process requires minimal skill from the personnel involved, saving significant manpower costs.

[0033] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, the sliding assembly 200 includes a push rod frame 210 and a slider 220; the slider 220 is slidably connected to the push rod frame 210; the push rod frame 210 includes a push rod frame body 211 and a first fixing plate 212, the push rod frame body 211 is fixedly connected to the base 100 through the first fixing plate 212; the top of the push rod frame body 211 is slidably connected to the slider 200.

[0034] In this embodiment, the base 100 is provided with a plurality of first screw through holes, and the first fixing plate 212 is also provided with a plurality of first screw through holes accordingly. During fixed installation, the plurality of first screw through holes on the base 100 are aligned with the plurality of first screw through holes on the first fixing plate 212. The first fixing plate 212 is fixed to the base 100 by passing a plurality of screws through the plurality of first screw through holes. Since the push rod frame body 211 and the first fixing plate 212 are fixed together as a whole, displacement of the push rod frame 210 due to external force can be avoided. The first screw through holes and the first screws are provided according to actual needs, and the number of first screw through holes and the number of first screws are not limited in this embodiment.

[0035] Specifically, the push rod bracket body 211 includes a vertical part and a horizontal part; the horizontal part is perpendicular to the top of the vertical part; the first fixing plate 212 is perpendicular to the bottom of the vertical part; a sliding groove is provided on the end face of the horizontal part facing away from the base 100, and a sliding groove opening is provided on the end face of the horizontal part facing the lens bracket 500; the sliding member 220 is slidably connected to the top of the vertical part, and the sliding member 220 is slidably connected to the horizontal part.

[0036] In this embodiment, the push rod holder body 211 includes a vertical portion and a horizontal portion, which are integrally formed to form the push rod holder body 211. The bottom end of the vertical portion is fixed to the base 100 by a first fixing plate 212, and the horizontal portion is perpendicular to the top end of the vertical portion. Since the lens bracket 500 is perpendicular to the base 100, the vertical portion of the push rod holder body 211 is parallel to the lens bracket 500, and the horizontal portion is perpendicular to the lens bracket 500. A rectangular groove is provided on the end face of the horizontal portion facing away from the base 100, and the groove faces the lens bracket 500. A groove opening is provided on the end face facing the lens bracket 500.

[0037] The camera module 600 is fixed on the slider 220 for displacement to a preset position via the slider 220. By controlling the distance between the camera module 600 and the mechanical lens 400 within a preset focal length range, it is beneficial to image the image captured by the mechanical lens 400 onto the sensor of the camera module 600, thereby enabling the detection of the camera module 600's function. After the camera module 600 is fixed on the slider 220, the distance between the camera module 600 and the mechanical lens 400 fixed on the lens bracket 500 can be adjusted by moving the slider 220 along the slide groove. That is, the camera module 600 can be moved closer to the mechanical lens 400 along the slide groove via the slider 220, or moved further away from the mechanical lens 400 via the slider 220.

[0038] In one embodiment, such as Figure 4 As shown, the slider 220 includes a push rod 221, a slider 222, a connecting rod 223, and a push rod plate 224; the push rod 221 is vertically fixed to the slider 222; the slider 222 is located inside the horizontal part and can slide along the slide groove; one end of the connecting rod 223 is fixedly connected to the push rod plate 224, and the other end passes through the slide groove and is fixedly connected to the slider 222; the push rod plate 224 is parallel to the plane where the lens bracket 500 is located.

[0039] In this embodiment, the push rod 221 includes a handle and a connecting part. The handle is perpendicular to the top of the connecting part, and the handle and the connecting part are integrally formed to form the push rod 221. The push rod 221 is vertically fixed to the slider 222, wherein the connecting part of the push rod 221 is fixed to the slider 222. The push rod 221 can be made of high-strength stainless steel, and its cylindricity and surface roughness are ensured by precision grinding. The diameter is determined according to the required thrust and accuracy of the test, and the length is determined according to the size of the push rod holder 210 and the test requirements. The slider 222 can be made of engineering plastic with good self-lubricating properties (such as polytetrafluoroethylene modified material), and is made into a shape that matches the groove by injection molding. It has mounting holes that fit tightly with the push rod 221, and the hole diameter tolerance is controlled within ±0.05mm to ensure that the push rod 221 and the slider 222 are perpendicular and firmly connected.

[0040] The connecting rod 223 can be made of aluminum alloy and manufactured into a circular or square cross-section rod through extrusion molding. Its diameter or side length is determined according to the stress conditions. An external thread is machined at one end of the connecting rod 223 to mate with the threaded hole on the push rod disc 224; the other end is machined to connect with the slider 222, such as using a pin connection or a threaded connection. If a pin connection is used, a pin hole is machined at the corresponding position on the slider 222. The fit between the pin hole and the connecting rod 223 is a transition fit, with a tolerance controlled within ±0.03mm. The pin diameter is set as needed.

[0041] Specifically, the push rod 221 can be fixed to the slider 222 using either an interference fit or a threaded connection. For an interference fit, the interference amount is controlled to be between 0.03-0.05mm by controlling the tolerance between the outer diameter of the push rod 221 and the inner diameter of the mounting hole of the slider 222. The push rod 221 is then pressed into the hole of the slider 222 using a press to ensure the reliability and coaxiality of the connection. If a threaded connection is used, an external thread is machined at the end of the connection part of the push rod 221, and an internal thread is correspondingly machined in the mounting hole of the slider 222. The thread specification is selected according to the diameter of the connection part of the push rod 221, such as M10-M16. Thread locking agent is used to prevent loosening, and the thread is tightened to the specified torque using a torque wrench.

[0042] When connecting the push rod plate 224 and the slider 222, first connect one end of the connecting rod 223 to the slider 222, then adjust the push rod plate 224 to a suitable position so that it is parallel to the plane of the lens bracket 500. Secure the push rod plate 224 to the connecting rod 223 firmly by tightening the nut on the connecting rod 223 or inserting a pin, ensuring that the connection between the three will not loosen during testing, thus ensuring effective force transmission and synchronous movement.

[0043] Since the push rod 221 is fixed on the slider 222, and the slider 222 is located within the horizontal portion of the push rod holder body 211, the slider 222 can slide along the groove under the action of the push rod 221. Simultaneously, one end of the connecting rod 223 is fixedly connected to the push rod plate 224, and the other end passes through the groove opening and is fixedly connected to the slider 222. Therefore, the slider 222, connecting rod 223, and push rod plate 224 can move together along the groove towards or away from the lens bracket 500 under the action of the push rod 221. The precision-machined push rod 221, slider 222, groove, and the high-precision connection between the components ensure the movement accuracy and stability of the slider 220 on the push rod holder 210. During the test, the movement of the camera module 600 is precisely controlled by controlling the displacement of the push rod 221, thereby adjusting the camera module 600 to a preset position to improve the imaging quality of the image in the sensor of the camera module 600, avoid secondary detection caused by improper operation, and ultimately improve the efficiency of testing the function of the camera module 600.

[0044] In one embodiment, such as Figure 4 As shown, the slider 220 also includes a module bracket 225; the module bracket 225 includes a module bracket body and a positioning post; the positioning post is disposed on the first end face of the module bracket body, wherein the first end face of the module bracket body is the end face facing the lens bracket 500; the push rod disk 224 is fixedly connected to the second end face of the module bracket body, and the second end face of the module bracket body is opposite to its first end face; the camera module 600 is fixedly connected to the first end face of the module bracket body.

[0045] In this embodiment, the first end face of the push rod disk 224 is fixedly connected to the connecting rod 223 by screws, and its second end face is fixedly connected to the second end face of the module bracket body. The first end face and its second end face of the push rod disk 224 face opposite directions; the first end face faces the push rod bracket 210, and the second end face faces the lens bracket 500. Both the push rod disk 224 and the module bracket body are parallel to the plane containing the lens bracket 500. A plurality of positioning posts are provided on the first end face of the module bracket body, and a camera module 600 is fixedly connected to its first end face. The plurality of positioning posts on the first end face of the module bracket body abut against the pressing plate 530, so that the camera module 600 is located between the pressing plate 530 and the module bracket body.

[0046] The positioning posts on the first end face of the module bracket body can, on the one hand, distribute the pressure on the camera module 600 to a certain extent, and evenly transmit the pressure to the module bracket body, so as to avoid excessive local stress on the camera module 600 and damage, thus improving the stability and reliability of the entire structure; on the other hand, the positioning posts can limit the focal length of the imaging between the mechanical lens 400 and the camera module 600, so as to avoid the focal length between the two being too small and affecting the image quality.

[0047] In one embodiment, such as Figure 2 As shown, the lens bracket 500 includes a first lens bracket 510, a second lens bracket 520, and a pressing plate 530; the first lens bracket 510 is fixedly connected to the second lens bracket 520 through the pressing plate 530; one side of the pressing plate 530 is fixedly connected to the mechanical lens 400, and the other side is connected to the first end face of the module bracket body.

[0048] In this embodiment, the first lens bracket 510 and the second lens bracket 520 are at the same height. The top of the first lens bracket 510 and the top of the second lens bracket 520 are fixedly connected together by a pressing plate 530, wherein the first lens bracket 510 and the second lens bracket 520 are symmetrically arranged about the center line of the pressing plate 530. The bottom of the first lens bracket 510 and the bottom of the second lens bracket 520 are both fixed to the base 100 by screws. The mechanical lens 400 is fixed to one end face of the pressing plate 530 by screws, and the other end face of the pressing plate 530 abuts against the positioning post on the first end face of the module bracket body. Due to the height characteristics of the first lens bracket 510 and the second lens bracket 520, the mechanical lens 400 is positioned directly above the base 100 after being fixed to the pressing plate 530. Due to the height characteristics of the push rod bracket body 211, the camera module 600 is also positioned above the base 100 after being movably connected to the push rod bracket 210 via the sliding member 220. Therefore, after the camera module 600 is fixed on the first end face of the module bracket 225, the height of the push rod bracket body 211 is set so that the distance from the camera module 600 to the base 100 is the same as the distance from the mechanical lens 400 to the base 100, so that the image captured by the lens can be imaged in the sensor of the camera module 600.

[0049] In one embodiment, combined with Figure 5 The serial port assembly 300 includes a serial port bracket 310, a network port end 320, and a power supply end 330; the serial port bracket 310 is provided with a first through hole 311 and a second through hole 312 at intervals; the network port end 320 is adapted to the first through hole 311; the power supply end 330 is adapted to the second through hole 312; the serial port bracket 310 is vertically fixed to the base 100.

[0050] In this embodiment, the serial port bracket 310 is vertically fixed to the base 100 with screws. The serial port bracket 310 has a first through hole 311 and a second through hole 312 spaced horizontally. The first through hole 311 and the second through hole 312 are used to respectively connect the network port end 320 and the power supply end 330, achieving reasonable planning and utilization of the limited space within the camera module test fixture. This makes the layout of the network port and power supply related lines and interfaces more orderly and avoids the lines from becoming tangled. It also facilitates the identification, inspection, and maintenance of different lines by testing personnel. The network port end 320 is adapted to the first through hole 311 and fixed to the serial port bracket 310 with a nut. The network port end 320 is used to house the internal wiring of the network port. This internal wiring provides a network path for the testing of the entire camera module 600, ensuring that the images captured by the sensor of the camera module 600 can be uploaded normally to the cloud server. The power supply terminal 330 is adapted to the second through hole 312 and fixed to the serial port bracket 310 by a nut. The power supply terminal 330 is used to house the power input internal wiring and the power output internal wiring. The power input internal wiring and the power output internal wiring are used to provide a reliable power foundation for the testing of the camera module 600, ensuring that the testing process of the camera module 600 can operate normally.

[0051] Specifically, the serial port assembly 300 also includes a second fixing plate 340 and a fixing member 350; the second fixing plate 340 is vertically fixed to the bottom of the serial port bracket 310; the fixing member 350 is sleeved on the network port end 320 and the power supply end 330.

[0052] In this embodiment, the second fixing plate 340 is vertically fixed to the bottom of the serial port bracket 310, and the second fixing plate 340 and the bottom of the serial port bracket 310 are located on the same horizontal plane, so that the serial port bracket 310 and the second fixing plate 340 are integrally formed into an "L" shape. Through the design of the second fixing plate 340 being vertically integrated with the serial port bracket 310 in an "L" shape, and combined with screws fixing the second fixing plate 340 to the base 100, a stable and reliable connection structure is constructed. This structure can distribute force from different directions, effectively resisting the torque and shear force generated by plugging and unplugging operations (such as plugging and unplugging network cables, power cords, etc.), ensuring that the serial port bracket 310 is firmly fixed to the base 100, avoiding loosening, shaking, or displacement, providing stable support for components such as the network port end 320 and power end 330 installed on the serial port bracket 310, ensuring their normal operation, and maintaining the stability of the entire device operation.

[0053] The second fixing plate 340 has a plurality of first screw holes spaced apart, and the base 100 also has a plurality of second screw holes of the same type, wherein the number of first screw holes and second screw holes are equal. When the serial port bracket 310 is installed and fixed on the base 100, the first screw holes are aligned with the second screw holes, and the second fixing plate 340 and the base 100 are fixedly connected together by fitting the screws into the channels formed by the alignment of the first and second screw holes. The use of screws for fixing makes disassembly relatively simple when maintenance, repair or equipment upgrades of the serial port bracket 310 and its related components are required. The serial port bracket 310 can be removed from the base 100 simply by unscrewing the screws. Moreover, during reinstallation, it can still be accurately reset and installed using the pre-set screw holes, without the need for additional complex position adjustments and calibrations, reducing the workload and maintenance time during fixture maintenance, and improving the maintainability and usability of the fixture.

[0054] In one embodiment, such as Figure 1 , Figure 2 as well as Figure 3 As shown, the interface component 700 includes a main control board 710 and an interface board 720; the main control board 710 is connected to the interface board 720; the main control board 710 is located between the lower surface of the interface board 720 and the base 100; the camera module 600 is connected to the main control board 710; the network port 320 and the power supply 330 are both electrically connected to the interface board 720.

[0055] In this embodiment, the main control board 710 is fixedly connected to the base 100 by studs and is located between the base 100 and the lower surface of the interface board 720. This not only facilitates the connection between the main control board 710 and the interface board 720 via connectors, but also improves the utilization rate of the internal space of the fixture. The network port 320 and the power supply 330 are both electrically connected to the interface board 720 via cables. The main control board 710 and the interface board 720 are connected via connectors, so that after connecting the network port cable and the power supply cable to the network port 320 and the power supply 330 respectively to provide network and power terminals for the detection process, the interface board 720 and the main control board 710 can be in a signal transmission working state.

[0056] The camera module 600 and the main control board 710 can be connected using an FPC (Flexible Printed Circuit). One end of the FPC is connected to the interface pins of the camera module 600 via crimping or soldering, and the other end is connected to the corresponding interface line on the main control board 710. The camera module 600 is connected to the main control board 710 via the FPC. The flexible nature of the FPC allows it to adapt to the spatial layout between the camera module 600 and the main control board 710, making the overall structure of the camera module test fixture more compact and easier to integrate. This connection method also facilitates maintenance of the camera module test fixture. If the camera module 600 malfunctions, it can be easily replaced simply by disconnecting the FPC connection, without requiring extensive disassembly of the entire fixture's wiring.

[0057] Specifically, since the network port 320 has internal network wiring, and the power supply 330 has internal power input wiring and internal power output wiring, the network port wiring is electrically connected to the interface board 720 via the network port 320, and the internal power input wiring and internal power output wiring are electrically connected to the interface board 720 via the power supply 330. This provides the interface board 720 with network and power terminals, enabling it to transmit signals (i.e., fulfilling the conditions for it to be in working condition). The main control board 710 is connected to the interface board 720 via a connector. Therefore, after connecting the camera module 600 to be tested to the FPC interface cable on the main control board 710, the image captured by the sensor of the camera module 600 can be transmitted to the cloud server through the main control board 710. By observing the image imaging status stored in the cloud server, the functionality of the camera module 600 under test can be tested.

[0058] In one embodiment, such as Figure 1 as well as Figure 3 As shown, the interface assembly 700 also includes a board cover 730 and a board support frame 740; the board cover 730 is fixedly connected to the upper surface of the interface board 720; the first end face of the board support frame 740 is fixedly connected to the base 100, and the second end face of the board support frame 740 is fixedly connected to the lower surface of the interface board 720, wherein the first end face of the board support frame 740 is the end face facing the base 100, and the second end face of the board support frame 740 is opposite to its first end face.

[0059] In this embodiment, the board cover 730 is fixed to the upper surface of the interface board 720 by studs, preventing dust, moisture, foreign objects, etc. from entering the interface board 720, protecting the electronic components and circuits on the interface board 720 from damage by external environmental factors, and improving the reliability and stability of the camera module test fixture. The first end face of the board support frame 740 is fixed to the base 100 by a slot, and the lower surface of the interface board 720 is fixed to the second end face of the board support frame 740 by studs. The presence of the board support frame 740 provides an additional support structure for the interface board 720. It connects the interface board 720 to the base 100, making the position of the interface board 720 more stable in the equipment. When the fixture is subjected to vibration, collision, or movement, the board support frame 740 can disperse the external force borne by the interface board 720, reducing the risk of deformation, loosening, or solder joint detachment of the interface board 720. In addition, the board support frame 740 can be adjusted in height and angle according to the space inside the fixture and the position of other components, so that the interface board 720 can better connect and transmit signals with other components (such as camera module 600, main control board 710, etc.).

[0060] This utility model embodiment provides a camera module testing fixture, including a base 100, a sliding component 200, a serial port component 300, a mechanical lens 400, a lens bracket 500, a camera module 600, and an interface component 700. The sliding component 200, serial port component 300, and interface component 700 are all fixed to the base 100. The lens bracket 500 is vertically fixed to the base 100, and the mechanical lens 400 is fixed to the lens bracket 500. The camera module 600 is connected to the lens bracket 500 via the sliding component 200, and the camera module 600 and the mechanical lens 400 are coaxially arranged. The serial port component 300 and the camera module 600 are both connected to the interface component 700. In this utility model embodiment, the focal length of the camera module 600 is adjusted by the sliding component 200, allowing the image captured by the mechanical lens 400 to be transmitted to the camera module 600 for imaging. This eliminates the need to disassemble and reassemble the camera module testing fixture for each test, simplifying the testing process and improving efficiency.

[0061] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A camera module test fixture, comprising: The utility model provides a camera module, including base, sliding assembly, serial port assembly, mechanical lens, lens support, camera module and interface assembly, sliding assembly, serial port assembly and interface assembly all are fixed in base, lens support is fixed perpendicularly in base, mechanical lens is fixed in lens support, camera module is connected through sliding assembly in lens support, and camera module and mechanical lens are coaxial arrangement, serial port assembly and camera module all are connected in interface assembly.

2. The camera module test fixture of claim 1, wherein, Sliding assembly includes push rod support and sliding piece, sliding piece is connected in push rod support, push rod support includes push rod support body and first fixed plate, push rod support body is fixedly connected through first fixed plate in base, top of push rod support body is connected with sliding piece.

3. The camera module test fixture of claim 2, wherein, Push rod support body includes vertical part and horizontal part, horizontal part is perpendicular to the top of vertical part, first fixed plate is perpendicular to the bottom of vertical part, the end surface of horizontal part away from base is provided with slide groove, and the end surface of horizontal part towards lens support is provided with slide groove mouth, sliding piece is connected in the top of vertical part, sliding piece is connected with horizontal part.

4. The camera module test fixture of claim 3, wherein, Sliding piece includes push rod, sliding block, connecting rod and push rod disc, push rod is fixed perpendicularly in sliding block, sliding block is located in the inside of horizontal part and can slide along slide groove, one end of connecting rod is fixedly connected in push rod disc, the other end passes through slide groove mouth and is fixedly connected in sliding block, push rod disc is parallel to the plane where lens support is located.

5. The camera module test fixture of claim 4, wherein, Sliding piece further includes module support, module support includes module support body and positioning column, positioning column is arranged on the first end surface of module support body, wherein the first end surface of module support body is the end surface towards lens support, push rod disc is fixedly connected on the second end surface of module support body, the second end surface of module support body is opposite to its first end surface, camera module is fixedly connected on the first end surface of module support body.

6. The camera module test fixture of claim 5, wherein, Lens support includes first lens support, second lens support and pressing plate, first lens support is fixedly connected through pressing plate in second lens support, one side of pressing plate is fixedly connected in mechanical lens, the other side is connected in the first end surface of module support body.

7. The camera module test fixture of claim 1, wherein, Serial port assembly includes serial port support, network port end and power supply end, first through -hole and second through -hole are arranged at interval on serial port support, network port end is matched with first through -hole, power supply end is matched with second through -hole, serial port support is fixed perpendicularly in base.

8. The camera module test fixture of claim 7, wherein, Serial port assembly further includes second fixed plate and fixed piece, second fixed plate is fixed perpendicularly in the bottom of serial port support, fixed piece is sleeved in network port end and power supply end.

9. The camera module test fixture of claim 7, wherein, Interface assembly includes main control board and interface board, main control board is connected in interface board, The main control board is located between the lower surface of the interface board and the base; the camera module is connected to the main control board; and the network port end and the power supply end are electrically connected to the interface board.

10. The camera module test fixture of claim 9, wherein, The interface assembly further comprises a board cover plate and a board support frame; the board cover plate is fixedly connected to the upper surface of the interface board; the first end surface of the board support frame is fixedly connected to the base, and the second end surface of the board support frame is fixedly connected to the lower surface of the interface board, wherein the first end surface of the board support frame is an end surface facing the base, and the second end surface of the board support frame is opposite to the first end surface.

Images