Mechanical device for detecting four-side interfaces of electronic products

Abstract

The application belongs to the technical field of mainboard detection and relates to a mechanical device for detecting four-side interfaces of electronic products. The mechanical device comprises a base, a rotating platform arranged on the upper side of the base and capable of reciprocating displacement along a certain sidewall of the base, a loading platform arranged on the upper sidewall of the rotating platform and used for placing a mainboard, a first recessed frame, two frame feet respectively arranged on the two sides of the rotating platform, a first visual detection assembly arranged on the front side or the rear side of the crossbeam of the first recessed frame, the first visual detection assembly being capable of reciprocating displacement along the extension direction of the crossbeam so as to be suitable for mainboards of different lengths, and a second recessed frame arranged at intervals with the first recessed frame and having two frame feet respectively arranged on the two sides of the rotating platform, the front side or the rear side of the crossbeam of the first recessed frame being provided with a detachable second visual detection assembly, the second visual detection assembly being capable of reciprocating displacement along the extension direction of the crossbeam and perpendicular to the upper sidewall of the mainboard.

Description

Technical Field

[0001] This invention belongs to the technical field of motherboard testing, specifically relating to a mechanical device for testing the four interfaces of electronic products. Background Technology

[0002] In the development and production of electronic products, interface testing of motherboards (especially industrial control motherboards) is a crucial step in ensuring product quality, compatibility, and stability. Motherboards typically integrate various types of interfaces, such as USB, HDMI, RJ45, serial ports, and power connectors, which are distributed across multiple sides of the motherboard.

[0003] Currently, after completing the plug-in / plug-out test of the motherboard structure, a manual visual inspection of the motherboard is still required to determine whether there are physical defects in the interfaces (bent pins, broken pins, foreign objects, damage, stains, oxidation), assembly and process issues (missing, incorrect, misaligned, or misaligned interface components, poor soldering), and dimensional and positional deviations (positional tolerances of the interfaces relative to the motherboard edges). Specifically, the operator needs to hold the motherboard and then perform visual inspection. However, this method has the following problems that need improvement: First, testing efficiency is low. With a large number and variety of motherboards having many interfaces, manual testing of each one is time-consuming and becomes a bottleneck in the production process.

[0004] Secondly, the manual labor is physically demanding. Repetitive visual inspection operations can easily lead to fatigue, and long-term work may cause occupational muscle strain, eye diseases, and other problems.

[0005] Furthermore, the consistency and reliability of the tests are difficult to guarantee. Individual differences exist in the force, angle, positioning accuracy, and visual effect of manual operation, which may affect the accuracy of the test results, and may even cause damage to the interface or motherboard due to misoperation.

[0006] Furthermore, manual testing makes it difficult to automatically record and trace test data, which is detrimental to production quality management and problem analysis.

[0007] Therefore, in view of the problems of low efficiency, high labor intensity and poor consistency of manual testing in the existing technology, there is an urgent need to develop an automated and high-precision mechanical testing device that can replace manual labor and quickly, accurately and reliably complete the testing of the four interfaces of the motherboard. Summary of the Invention

[0008] The purpose of this invention is to provide a mechanical device for detecting the four interfaces of electronic products, so as to solve the above-mentioned problems existing in the prior art.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: A mechanical device for testing the four interfaces of an electronic product includes a base, a rotating platform on the upper side that can move back and forth along one side wall of the base, and a carrying platform for placing the motherboard on the side wall of the rotating platform. The first concave frame has two legs respectively positioned on either side of the rotating platform. A first visual inspection component is located on the front or rear side of the crossbeam of the first concave frame. This first visual inspection component can be moved backward along the extension direction of the crossbeam to accommodate motherboards of different lengths. The second concave frame is spaced apart from the first concave frame, with its two legs positioned on either side of the rotating platform. A detachable second visual inspection component is provided on either the front or rear side of the first concave frame's crossbeam. The second vision inspection component can be moved back along the vertical upper sidewall of the motherboard and along the extension direction of the crossbeam.

[0010] In some embodiments, the upper sidewall of the base is provided with a slide rail and a drive component, and the lower sidewall of the rotating platform is provided with a support plate. The slide rail and the drive component are slidably connected to both ends of the lower sidewall of the support plate, and the extension direction of the slide rail is parallel to the displacement direction of the rotating platform.

[0011] In some embodiments, the slide rail is fitted with a plurality of sliders, the upper sidewalls of which are detachably connected to the support plate.

[0012] In some embodiments, the system further includes a plurality of fixing blocks for fixing the motherboard. The sidewall of the platform is provided with a plurality of bolt holes arranged sequentially and at intervals along the transverse and longitudinal directions. The sidewalls of the plurality of fixing blocks extend to form a connecting plate, and the connecting plate is bolted to the platform through the bolt holes.

[0013] In some embodiments, both ends of the front side of the first concave frame are provided with first driving components. One of the first driving components is provided with an illumination element on its front side and drives the illumination element to move back to the reset direction in the horizontal and vertical directions. The other first driving component is provided with a main camera and a secondary camera on its front side and drives the main camera and the secondary camera to move back to the reset direction in the horizontal and vertical directions.

[0014] In some embodiments, the front side of the second concave frame is provided with a second driving component that can drive the driving component to retract in the lateral and vertical directions, and the second vision detection component is detachably disposed on the front side of the driving component.

[0015] In some embodiments, the first drive assembly includes a first housing, a first screw, and a first sliding seat with a U-shaped structure. The first housing has a cavity inside and gaps on both side walls. The first screw is disposed inside the first housing. The lower side wall of the first sliding seat has a protrusion. The first screw passes through the protrusion and is threadedly connected to the protrusion. The bottom plate of the first sliding seat passes through the gaps on both sides of the first housing. The two side plates of the two first sliding seats are located outside the first housing and are respectively connected to the lighting element and the main camera and the secondary camera.

[0016] In some embodiments, the first drive assembly further includes a first concave seat, the back of which is connected to the two side plates of the first sliding seat. A second screw is provided on the front side of the first concave seat. The second screw is axially aligned in the vertical direction and its two ends are respectively facing the two side plates of the first concave seat. One of the second screws is fitted with an L-shaped base plate. One side plate of the base plate is threadedly connected to the second screw, and the other side plate of the base plate is hinged to the main camera and the secondary camera.

[0017] Beneficial effects: 1. By integrating a programmable rotating platform, multi-axis motion vision inspection components, and an automatic lighting system, this device can automatically complete the entire process of motherboard positioning, rotation, image acquisition, and analysis. This fundamentally solves the problems of low efficiency, high labor intensity, and easy fatigue associated with manual visual inspection, freeing operators from repetitive and high-intensity labor and greatly improving production and overall testing efficiency.

[0018] 2. The device employs a structure with a first concave frame and a second concave frame arranged opposite each other, combined with a 360-degree rotating platform. This allows the device to sequentially align the four sides of the motherboard with fixed high-precision visual inspection components without moving the motherboard, achieving omnidirectional, blind-spot-free inspection. In particular, by setting a second visual inspection component (positioning camera) facing the upper sidewall of the motherboard, precise image positioning and coordinate correction of the motherboard can be performed before inspection begins. This ensures that a unified and accurate inspection coordinate system can be established for motherboards of different sizes and placement positions, guaranteeing the accuracy and repeatability of all subsequent interface inspection results from the outset.

[0019] 3. The primary and secondary cameras of the first vision inspection component are arranged vertically to acquire multi-dimensional image information. Each vision component achieves micron-level precise displacement in the lateral and vertical directions through a high-rigidity drive assembly consisting of screws and sliding blocks. The rotating platform achieves smooth and precise linear movement through linear guides and servo drives. This sophisticated mechanical design and motion control effectively eliminates individual differences in force, angle, and judgment standards caused by manual operation, ensuring that the conditions and judgment standards for each inspection are completely consistent, resulting in reliable and trustworthy inspection results, and significantly improving the level of product quality control.

[0020] 4. The matrix-style bolt holes and adjustable fixing blocks on the platform allow for quick adaptation to motherboards of different sizes and shapes. The first and second vision inspection components adopt a modular and detachable design, facilitating the replacement of different camera models or lenses to meet new inspection requirements.

[0021] 5. The fully mechanical transmission and guiding mechanism (such as linear bearings and ball screws) has low wear, long service life, and stable operation. All testing processes are automatically completed by the electronic control system, avoiding the risk of human error damaging the interface or motherboard. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a mechanical device for detecting the four interfaces of an electronic product according to an embodiment of this application; Figure 2 This is a schematic diagram of a mechanical device for detecting the four-sided interfaces of an electronic product according to an embodiment of this application, when the first concave frame and the second concave frame are not installed; Figure 3 This is a top-view schematic diagram of the first concave frame of a mechanical device for detecting the four interfaces of an electronic product according to an embodiment of this application; Figure 4 This is a tilted schematic diagram of the first concave frame of a mechanical device for detecting the four interfaces of an electronic product according to an embodiment of this application. Figure 5 This is a schematic diagram of a first drive component and a first vision component of a mechanical device for detecting the four interfaces of an electronic product according to an embodiment of this application; Figure 6 This is a schematic diagram of the first drive component of a mechanical device for detecting the four interfaces of an electronic product according to an embodiment of this application, when no base plate is provided; Figure 7 This is a schematic diagram of the first sliding seat and the first concave seat of a mechanical device for detecting the four-sided interfaces of an electronic product according to an embodiment of this application; Figure 8 This is a schematic diagram of the first sliding seat and the first screw of a mechanical device for detecting the four-sided interfaces of an electronic product according to an embodiment of this application; Figure 9 This is a schematic diagram of the second concave frame of a mechanical device for detecting the four interfaces of an electronic product according to an embodiment of this application; Figure label: 100-Base, 110-Slide rail, 120-Driver, 200-Rotating platform, 210-Pattern, 220-Loading platform, 221-Bolt hole, 300-First concave frame, 310-Crossbeam, 400-First vision inspection component, 410-Main camera, 411-Secondary camera, 500-Second concave frame, 600-Second vision inspection component, 700-Fixing block, 710-Connecting plate, 800-First drive component, 810-First housing, 820-First screw, 830-First sliding seat, 831-Protrusion, 840-First concave seat, 850-Second screw, 860-Base plate, 900-Lighting component, 1000-Second drive component. Detailed Implementation

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0024] Example 1: According to a first aspect of this disclosure, a mechanical device for detecting the four interfaces of an electronic product is provided. (See also...) Figures 1-9 As shown, the mechanical device for testing the four interfaces of electronic products includes a base 100, a rotating platform 200, a first concave frame 300, and a second concave frame 500.

[0025] like Figure 1 As shown, the base 100 serves as the supporting structure for the entire device. It is typically a frame structure made of high-strength metal materials (such as aluminum alloy or steel) welded or bolted together, possessing sufficient rigidity and stability to support all subsequent components. The upper side of the base 100 is precision-machined to form a flat mounting reference surface.

[0026] like Figures 1-2 As shown, the rotating platform 200 is disposed on the upper side of the base 100. Specifically, the rotating platform 200 can reciprocate linearly along a side wall of the base 100, and specifically, the rotating platform 200 has at least one degree of freedom of linear motion relative to the base 100. This displacement function allows the rotating platform 200, carrying the motherboard (not shown in the figure), to be moved to different inspection stations. A carrying platform 220 is fixedly disposed on the upper side wall of the rotating platform 200, which is used to directly support and place the motherboard to be inspected. The upper surface of the carrying platform 220 is generally flat and can be covered with an anti-static pad or have positioning features. The rotating platform 200 itself can also have the function of rotating about a vertical axis (for example, through a rotary bearing and drive motor integrated under the platform), so that different sides of the motherboard are sequentially oriented toward a fixed vision inspection component during the inspection process. The rotation function can be achieved by a servo motor driving a worm gear mechanism, a direct drive torque motor, or a cross roller bearing with drive gears.

[0027] like Figure 1As shown, the first concave frame 300 straddles the rotating platform 200. The first concave frame 300 has two legs and a cross beam 310, forming a structure similar to a "door" or "concave" shape. The two legs are respectively fixedly arranged on both sides of the traveling direction of the rotating platform 200, for example, fastened to the base 100 by bolts or integrally formed with the base 100 directly, so as to ensure its stability. The cross beam 310 spans the space above the rotating platform 200.

[0028] As Figures 3-4 shown, a first vision detection component 400 is arranged on the front side or the rear side of the cross beam 310 of the first concave frame 300 (selected according to the requirement of the detection surface). The first vision detection component 400 can reciprocate along the extension direction of the cross beam 310. This design allows the position of the first vision detection component 400 to be adjusted according to the actual length of the main board placed on the loading platform 220, so that the center of its vision can accurately align with the interface area on one side of the main board, adapting to main boards of different specifications and sizes. The first vision detection component 400 usually includes a high-resolution industrial camera and a supporting lens, and is used to collect the front image of the interface. Its displacement along the cross beam can be realized by a linear module, a screw slide table or a synchronous belt drive mechanism installed on the cross beam.

[0029] The second concave frame 500 is arranged at a certain distance from the first concave frame 300 along the displacement direction of the rotating platform 200. Its structure is similar to that of the first concave frame 300, and the two legs are also respectively arranged on both sides of the rotating platform 200. A detachable second vision detection component 600 is arranged on the front side or the rear side of the cross beam of the second concave frame 500 (usually arranged opposite to the first vision detection component 400 on the first concave frame 300 to detect the other side of the main board).

[0030] The second vision inspection component 600 has two independent degrees of freedom of movement: first, it can move backward along the direction perpendicular to the upper sidewall of the motherboard (i.e., roughly vertical or adjusted according to the interface tilt angle) to adjust the shooting focus or adapt to interfaces of different heights; second, it can move backward along the extension direction of the crossbeam of the second concave frame 500 (i.e., parallel to the length of the motherboard), which functions similarly to the lateral displacement of the first vision inspection component 400, used to adapt to the length of the motherboard and align with specific interface rows. The second vision inspection component 600 may also include an industrial camera, whose "detachable" design facilitates the replacement of different camera or lens modules according to different inspection requirements (such as interface type, resolution requirements). Specifically, the second vision inspection component 600 also includes a camera (which may be called a positioning camera), the lens of which faces the upper sidewall of the motherboard. Its function is to photograph and position the motherboard placed on the platform 220, and determine the precise position and angle of the motherboard on the platform through image recognition technology, thereby ensuring the accuracy of the motherboard's placement. This step is crucial for subsequent precise interface positioning and inspection, especially when dealing with motherboards of different sizes and shapes. By taking pictures and correcting coordinates in advance, we can ensure that all subsequent visual inspection components move and focus based on an accurate and unified coordinate system, thereby greatly improving the accuracy and repeatability of the inspection results.

[0031] like Figures 1-2 As shown, to specifically achieve the reciprocating movement of the rotating platform 200 along the base 100, in one specific embodiment, a slide rail 110 and a drive member 120 are provided on the upper side wall of the base 100. A support plate 210 is fixedly connected to the lower side wall of the rotating platform 200. The slide rail 110 and the drive member 120 are slidably connected to both ends of the lower side wall of the support plate 210, respectively. Specifically, the extending direction of the slide rail 110 is strictly parallel to the displacement direction of the designed rotating platform 200.

[0032] The slide rail 110 can be a high-precision linear guide, with its track portion fixed to the upper surface of the base 100 by bolts. The drive unit 120 provides power and can be an electric actuator, cylinder, hydraulic cylinder, or a lead screw and nut mechanism driven by a servo motor. One end of the drive unit 120 (e.g., cylinder body or motor mount) is hinged or fixedly connected to the base 100, and its output end (e.g., actuator or nut seat) is hinged to or fixedly connected to the other end of the lower side wall of the support plate 210 via a connecting block. When the drive unit 120 is activated, it pushes or pulls the support plate 210, thereby causing the entire rotating platform 200 and its loading platform 220 to move precisely in a straight line along the direction defined by the slide rail 110. This linear motion is used to precisely deliver the interface array of the motherboard to be photographed into the center of the field of view of the first or second vision inspection component when inspecting different sides.

[0033] like Figures 1-2As shown, multiple sliders are mounted on the slide rail 110. The sliders are complementary components to the linear guide rail, typically containing ball or roller bearings, allowing for low-friction, high-precision sliding along the track. The upper walls of the multiple sliders (e.g., two or four) are detachably connected to the lower wall of the support plate 210 via bolts. By removing the bolts, the support plate 210, along with the rotating platform 200, can be removed from the sliders, facilitating maintenance, cleaning, or replacement of the platform or the slide rail system. The arrangement of multiple sliders enhances load-bearing stability and anti-overturning capability. Detachable connection methods include, but are not limited to: using hexagonal head bolts, passing through the through holes in the support plate 210 and screwing them into the threaded holes at the top of the sliders; or using T-bolts, embedding them into the T-slots of the sliders and connecting them to the support plate 210.

[0034] To securely fix the motherboard under test and prevent displacement during movement or rotation during testing, the device also includes multiple fixing blocks 700 for clamping or limiting the motherboard. The upper sidewall of the platform 220 is machined with multiple bolt holes 221. These bolt holes 221 are arranged regularly at intervals along the transverse (parallel to the width direction of the motherboard) and longitudinal (parallel to the length direction of the motherboard) directions on the surface of the platform 220, forming a matrix-like hole layout, such as a grid distribution with equal spacing.

[0035] Each fixing block 700 has its sidewall extending horizontally outward to form a connecting plate 710. The connecting plate 710 has through holes. During installation, based on the motherboard's dimensions and interface location, select the appropriate bolt hole 221, cover the connecting plate 710 of the fixing block 700 with it, and then use bolts to pass through the through holes of the connecting plate 710 and screw them into the bolt holes 221 of the loading platform 220, thereby securing the fixing block 700 to the loading platform 220. The fixing block 700 can be an L-shaped block, a stop block, or a clamping block with elastic pressure plates, achieving quick clamping and positioning of the motherboard by limiting its movement from the side or corner. For example, four L-shaped fixing blocks can be used, each abutting one of the four corners of the motherboard; or two long stop blocks can be used, each abutting one of the two opposite sides of the motherboard. The fixing block 700 can be made of aluminum alloy, engineering plastic, or metal with a surface covered with a soft material (such as silicone) to prevent scratching the motherboard.

[0036] The connection between the fixing block 700 and the connecting plate 710 can be either perpendicular or intersecting, depending on the requirements.

[0037] The detection system on the first concave frame 300 further integrates lighting and multi-angle visual detection functions. Specifically, a first drive assembly 800 is provided at both ends of the front side of the crossbeam of the first concave frame 300.

[0038] like Figures 3-4As shown, an illumination element 900 is mounted on the front side of one of the first drive components 800. This illumination element 900 can be an LED strip light, ring light, or area light source, used to provide uniform, shadowless illumination for camera shooting, highlighting interface details. The first drive component 800 can move the illumination element 900 back and forth in two directions: one is laterally (i.e., parallel to the extension direction of the crossbeam, used to adjust the illumination position to fit the motherboard length); the other is vertically (used to adjust the illumination angle and distance, optimizing the lighting effect).

[0039] like Figures 3-8 As shown, the core components of the first vision inspection component 400, namely the main camera 410 and the secondary camera 411, are mounted on the front side of another first driving component 800. The main camera 410 is used for high-precision acquisition of macroscopic and detailed images of the interface, while the secondary camera 411 can be a wide-angle camera for auxiliary positioning, one of the binocular cameras for 3D measurement, or a low-resolution camera for rapid scanning. Importantly, the main camera 410 is located above the secondary camera 411. This top-bottom arrangement allows for the simultaneous acquisition of images of the same interface area from different perspectives or with different depths of field, which is beneficial for 3D reconstruction, depth detection, or overcoming occlusion problems. The first driving component 800 can also drive the main camera 410 and the secondary camera 411 to perform precise reciprocating motion in the lateral and vertical directions. The lateral displacement is used to scan all interfaces on one side of the motherboard or to locate a specific interface; the vertical displacement is used to adjust the working distance to achieve focusing at different magnifications or to acquire images from different perspectives.

[0040] like Figure 9 As shown, the detection system on the second concave frame 500 also possesses precise positioning capabilities. A second drive assembly 1000 is provided on the front side of the crossbeam of the second concave frame 500. This second drive assembly 1000 itself is capable of reciprocating in two degrees of freedom: horizontal (parallel to the crossbeam) and vertical (perpendicular to the crossbeam, typically in the vertical direction). The second drive assembly 1000 can be a two-axis linear module, a cross slide, a combination of two independent single-axis modules, or a drive structure similar to the first drive assembly; there are no particular restrictions.

[0041] The second vision detection component 600 is detachably mounted on the front side (i.e., the output end) of the second drive component 1000 via a quick-change plate, mounting flange, or bolt connection. When the second drive component 1000 moves, it drives the second vision detection component 600 to move together, thereby realizing the lateral and vertical displacement function of the second vision detection component 600. In particular, the positioning camera in the second vision detection component 600 can be precisely adjusted in position and angle relative to the upper surface of the motherboard through this drive component, ensuring the clarity and accuracy of the positioning images.

[0042] The following is a detailed description of a specific mechanical structure of the first drive assembly 800. The first drive assembly 800 includes a first housing 810, a first screw 820, and a first sliding seat 830.

[0043] The first housing 810 is typically elongated and made of bent metal sheet or aluminum profile, with an internal cavity extending along its length. Elongated gaps or windows are formed along the length of the two opposite sidewalls of the first housing 810.

[0044] The first screw 820 is supported by a bearing housing and is horizontally disposed in the internal cavity of the first housing 810, with its axis parallel to the length direction (i.e., transverse) of the first housing 810. One end of the first screw 820 is connected to the output shaft of a servo motor or stepper motor (not shown in the figure) mounted at the end of the first housing 810, and is driven by the motor to rotate in both forward and reverse directions. The first screw 820 can be a precision ball screw or a trapezoidal screw.

[0045] The first sliding seat 830 has an overall U-shaped structure, consisting of a base plate and two side plates. A downwardly protruding protrusion 831 is located at the center of the lower side wall of the base plate of the first sliding seat 830. This protrusion 831 extends into the cavity inside the first housing 810 and has a threaded hole machined inside. The first screw 820 passes through the threaded hole on the protrusion 831, and the two form a screw-nut transmission pair.

[0046] The base plate of the first sliding seat 830 passes through the gap between the two side walls of the first housing 810, so that the base plate is located on the side of the first housing 810, while the two side plates of the first sliding seat 830 are located on the outside of the first housing 810. This design allows the first sliding seat 830 to both engage with the first screw 820 to transmit motion and expose its moving parts to connect to the load. The two side plates of the first sliding seat 830 are used to connect the lighting element 900 or the mounting base connecting the main camera 410 and the secondary camera 411 (via the subsequent first concave seat 840). The connection method can be bolt fixing, snap-fit ​​connection or welding.

[0047] Working process: When the motor drives the first screw 820 to rotate, the screw engagement causes the protrusion 831 and the first sliding seat 830 fixed thereto to generate linear displacement along the axial direction (i.e., lateral direction) of the first screw 820, thereby driving the lighting component 900 or camera assembly installed at its front end to move laterally.

[0048] Furthermore, the first drive assembly 800 also includes a first concave seat 840 for vertical drive. The back of the first concave seat 840 is fixedly connected to the two side plates of the first sliding seat 830 by bolts or welding, thereby moving laterally along with the first sliding seat 830.

[0049] A second screw 850 is mounted on the front side of the first concave seat 840. The second screw 850 is arranged vertically along its axis, facing the two side plates of the first concave seat 840 (i.e., the two sides of the opening of the concave structure). The second screw 850 can be driven to rotate by another motor mounted on the top or bottom of the first concave seat 840.

[0050] A base plate 860 is fitted and threaded onto the second screw 850. One side plate (vertical plate) of the base plate 860 is threaded into the second screw 850. The other side plate (horizontal plate) of the base plate 860 is used to mount the vision assembly. Specifically, for the first drive assembly 800 that mounts the camera, the main camera 410 and the secondary camera 411 are connected to the horizontal plate of the base plate 860 via damped hinges or ball joints. This hinged connection allows for fine-tuning and locking of the camera's pitch angle during installation or commissioning to ensure that the camera's optical axis is perpendicular to the plane of the interface under test.

[0051] Working process: When the second screw 850 rotates, it drives the base plate 860 to move up and down vertically through the threaded transmission, thereby enabling the main camera 410 and the auxiliary camera 411, which are hinged to it, to achieve precise vertical positioning. Combined with the lateral movement achieved by the first screw 820, the camera ultimately has the ability to achieve precise positioning in both horizontal and vertical planes.

[0052] Explanation of the working principle of this device: Motherboard loading and initial fixation: The operator places the motherboard to be tested in the center of the platform according to its dimensions. Then, a suitable fixing block is selected, and its connecting plate is tightened to the pre-set bolt holes on the platform using bolts. This mechanically limits and clamps the motherboard from the side or corner, ensuring that the motherboard will not shift during subsequent movements.

[0053] Coordinated movement and position switching of the main bearing mounting platform: The rotating platform carries the fixed main board and serves as the core motion unit of the entire inspection process. First, according to the preset instructions of the inspection program, the driving component below it (such as an electric push rod or lead screw mechanism) moves, and through cooperation with the slide rail on the base, pushes the entire platform to move in a straight line (usually back and forth). This movement aims to initially deliver the edge of the main board that needs to be inspected to the approximate inspection area under the first concave frame. Next, the rotary drive mechanism integrated inside the rotating platform (such as a motor-driven slewing bearing) works, driving the entire platform, along with the main board, to rotate precisely 90 degrees, 180 degrees, or 270 degrees around the vertical axis, thereby turning the four sides of the main board sequentially and stopping them in the position facing the first vision inspection component.

[0054] Scanning and detection of the first side interface: Once one side (e.g., the front) of the motherboard has rotated into position and is facing the first concave frame, the first vision detection component on the crossbeam begins to operate. Its internal first drive component activates, driving the main camera and the secondary camera (located below the main camera) as a unit to move first along the extension direction (lateral) of the crossbeam, positioning themselves at the starting position for scanning that side.

[0055] At the same time, the lighting component, which is arranged alongside the camera component, moves to a position that can provide the best lighting angle under the drive of its corresponding first drive component.

[0056] Once preparations are complete, the rotating platform performs another precise linear displacement, ensuring the motherboard's side smoothly passes beneath the camera's field of view. During this process, the main and secondary cameras continuously or statically capture images according to a preset rhythm, comprehensively acquiring images of all interfaces on that side. Illumination provides constant and uniform lighting.

[0057] The remaining side loop detection: After completing the scan of one side, the rotating platform is rotated to the next angle in sequence, and the process of "platform linear movement combined with camera shooting" in step 3 above is repeated until the interface images of all four sides of the motherboard are collected by the first vision detection component.

[0058] Motherboard Position Calibration and Auxiliary Inspection: Before or during the inspection process, the second vision inspection component (positioning camera) on the second concave frame, driven by its second drive component, moves to directly above the motherboard. The camera takes a vertically downward image of the motherboard's upper surface. The image acquired in this step is used subsequently (within the control system) to determine the deviation between the motherboard's actual and theoretical positions on the platform, providing a precise physical coordinate reference for the entire inspection process. Furthermore, this second vision inspection component can also be moved to a specific position as needed to perform auxiliary image inspection of the components on top of the motherboard.

[0059] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A mechanical device for detecting the interfaces on all four sides of an electronic product, characterized in that, include: The base has a rotating platform on its upper side that can move back and forth along one side wall of the base. The upper side wall of the rotating platform has a carrying platform for placing the motherboard. The first concave frame has two legs respectively positioned on either side of the rotating platform. A first visual inspection component is provided on the front or rear side of the crossbeam of the first concave frame. This first visual inspection component can be moved backward along the extension direction of the crossbeam to accommodate motherboards of different lengths. The second concave frame is spaced apart from the first concave frame, and its two legs are respectively located on both sides of the rotating platform. The front or rear side of the crossbeam of the second concave frame is provided with a detachable second vision inspection component. The second visual detection component can be moved back along the vertical upper sidewall of the motherboard and along the extension direction of the crossbeam.

2. The mechanical device according to claim 1, characterized in that: The upper side wall of the base is provided with a slide rail and a drive component, and the lower side wall of the rotating platform is provided with a support plate. The slide rail and the drive component are slidably connected to both ends of the lower side wall of the support plate, and the extension direction of the slide rail is parallel to the displacement direction of the rotating platform.

3. The mechanical device according to claim 2, characterized in that: The slide rail is fitted with multiple sliders, and the upper sidewalls of the multiple sliders are detachably connected to the support plate.

4. The mechanical device according to claim 3, characterized in that: It also includes multiple fixing blocks for fixing the motherboard. The side wall of the loading platform is provided with multiple bolt holes arranged sequentially and longitudinally. The side walls of the multiple fixing blocks extend to form a connecting plate, and the connecting plate is bolted to the loading platform through the bolt holes.

5. The mechanical device according to claim 4, characterized in that: The first visual detection component includes a main camera and a secondary camera. Both ends of the front side of the first concave frame are provided with first driving components. One of the first driving components has an illumination element on its front side and drives the illumination element to move back to the reset direction in the horizontal and vertical directions. The other first driving component has the main camera and the secondary camera on its front side and drives the main camera and the secondary camera to move back to the reset direction in the horizontal and vertical directions.

6. The mechanical device according to claim 5, characterized in that: The front side of the second concave frame is provided with a second driving component that can drive the driving component to move back and forth in the horizontal and vertical directions, and the second vision detection component is detachably mounted on the front side of the driving component.

7. The mechanical device according to claim 6, characterized in that: The first drive assembly includes a first housing, a first screw, and a first sliding seat with a U-shaped structure. The first housing has a cavity inside and gaps on both side walls. The first screw is disposed inside the first housing. A protrusion is provided on the lower side wall of the first sliding seat. The first screw passes through the protrusion and is threadedly connected to the protrusion. The bottom plate of the first sliding seat passes through the gaps on both sides of the first housing. The two side plates of the two first sliding seats are located outside the first housing and are respectively connected to the lighting element, the main camera, and the secondary camera.

8. The mechanical device according to claim 7, characterized in that: The first drive assembly also includes a first concave seat. The back of the first concave seat is connected to the two side plates of the first sliding seat. A second screw is provided on the front side of the first concave seat. The second screw is axially in the vertical direction and its two ends are respectively facing the two side plates of the first concave seat. One of the second screws is sleeved on the base plate. One side plate of the base plate is threadedly connected to the second screw, and the other side plate of the base plate is hinged to the main camera and the secondary camera.

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