A PCB automatic double-sided detection system, method, equipment and medium

Abstract

The invention discloses an automatic double-side detection system, method, equipment and medium for PCB. The system comprises: a PCB transmission mechanism, which is provided with a detection area and a feeding area; a PCB detection mechanism, which is arranged at upper and lower sides of the detection area; a platform angle calibration mechanism, which is arranged at a position below the corresponding detection area on the PCB transmission mechanism; and an adaptive side-pull mechanism, which is arranged at a position close to the feeding area on the PCB transmission mechanism; the PCB transmission mechanism transmits a PCB light board to be detected, the PCB detection mechanism performs upper and lower double-side simultaneous detection on the transmitted PCB light board to be detected, the platform angle calibration mechanism calibrates the horizontality of the detection area, and the adaptive side-pull mechanism aligns a plurality of PCB light boards to be detected to matching feeding channels respectively; the invention can perform adaptive incoming material alignment according to the incoming material position, perform horizontal calibration on the detection platform, and realize synchronous detection of the front and back sides of the PCB.

Description

Technical Field

[0001] The present invention relates to the field of detection equipment, and in particular to a PCB automatic double-sided detection system, method, equipment and medium. Background Art

[0002] At present, in visual inspection applications, the commonly used inspection method is manual visual inspection, which requires operators to compare the quality and problems of products with the naked eye; this method has low inspection efficiency and cannot guarantee the consistency and reliability of inspection. Once inspection deviation occurs, it may lead to multiple re-inspections, affecting the production cost and production time of the product; furthermore, although there are mature solutions for offline automated inspection, these solutions usually have more inspection processes. When some products require double-sided inspection, these traditional inspection solutions require more process time, the inspection cost of the entire inspection line will increase, and a certain amount of resource waste will occur. Summary of the invention

[0003] The object of the present invention is to provide a PCB automatic double-sided detection system, method, device and medium, thereby solving all or one of the above-mentioned problems existing in the prior art.

[0004] In order to solve the above technical problems, the specific technical solutions of the present invention are as follows:

[0005] In one aspect, the present invention provides a PCB automatic double-sided detection system, comprising:

[0006] PCB transmission mechanism, PCB detection mechanism, platform angle calibration mechanism and adaptive edge mechanism;

[0007] The PCB transmission mechanism is provided with a detection area and a feeding area away from the detection area;

[0008] The PCB detection mechanism is arranged corresponding to the upper and lower sides of the detection area;

[0009] The platform angle calibration mechanism is arranged on the PCB transmission mechanism at a position corresponding to below the detection area and avoiding the PCB detection mechanism;

[0010] The adaptive edge-pushing mechanism is arranged on the PCB transmission mechanism at a position close to the feeding area and above the PCB transmission mechanism;

[0011] The PCB transmission mechanism is used to transmit the PCB light board to be detected; the PCB detection mechanism is used to simultaneously detect the upper and lower surfaces of the transmitted PCB light board to be detected; the platform angle calibration mechanism is used to calibrate the horizontality of the detection area before detection; the adaptive edge mechanism is used to align the multiple PCB light boards to be detected to the matching feeding channels when multiple PCB light boards to be detected appear in the feeding area.

[0012] As an improved solution, the PCB transmission mechanism includes: a conveying module and a pressing module;

[0013] A detection platform is provided in the middle of the conveying module, the pressing module is arranged above the detection platform, and the detection platform is the detection area;

[0014] The detection platform is provided with a first detection bar hole and a second detection bar hole arranged side by side along the length direction of the detection platform; the first detection bar hole and the second detection bar hole are respectively arranged to vertically penetrate the detection platform;

[0015] The conveying module is used to transfer the PCB light board to be inspected to the inspection platform, and to transfer the inspected PCB light board to the outside of the inspection platform; the pressing module is used to limit the conveying speed of the PCB light board on the inspection platform; the first inspection bar hole and the second inspection bar hole are respectively used to provide an inspection field of view for the PCB inspection mechanism.

[0016] As an improved solution, the conveying module includes: a first roller conveying unit and a second roller conveying unit arranged horizontally;

[0017] The first roller conveying unit and the second roller conveying unit are respectively arranged at two sides of the detection platform; the first roller conveying unit is used to convey the PCB light board to be detected to the detection area, and the second roller conveying unit is used to receive the PCB light board after detection; the first end of the first roller conveying unit is the feeding area, and the end of the first roller conveying unit is close to the detection platform;

[0018] The first roller conveying unit and the second roller conveying unit are both composed of a plurality of rollers arranged side by side and in parallel, and each two adjacent rollers are transmission-connected to each other;

[0019] A speed regulating motor is arranged below the roller of the first roller conveying unit. The speed regulating motor is connected to an active roller among several rollers of the first roller conveying unit through a chain. The speed regulating motor is used to drive the active roller to rotate. The speed regulating motor is linked with several rollers other than the active roller through the active roller.

[0020] As an improved solution, the clamping module is composed of a front pressure roller and a rear pressure roller arranged parallel to the roller; the two rollers located on the left and right sides of the detection platform are two matching rollers; the front pressure roller and the rear pressure roller are respectively arranged at the upper positions corresponding to the two matching rollers, and gaps are respectively provided between the front pressure roller and the matching roller, and between the rear pressure roller and the matching roller;

[0021] First support frames are respectively provided at the positions of the matching rollers at both ends of the detection platform, the front pressure roller is rotatably mounted on the first support frame on one side of the detection platform, and the rear pressure roller is rotatably mounted on the first support frame on the other side of the detection platform.

[0022] As an improved solution, the adaptive edge mechanism includes: a first sensor group, a second sensor group, a linear module and a servo module;

[0023] The linear module is arranged above the first roller conveying unit and close to the position of the feeding area, and the linear module is arranged along the length direction of the roller; an alignment moving member is installed on the moving part of the linear module, and the lower end of the alignment moving member vertically extends downward to the upper position of the first roller conveying unit, and the lower end of the alignment moving member is an alignment ruler matching the size of the PCB light board to be detected; two side bearing members are also arranged at the upper position of the first roller conveying unit, and the two side bearing members are located at the two sides of the alignment ruler, and a distance is provided between the two side bearing members and the alignment ruler, and the two side bearing members are symmetrically arranged, and the sizes of the two side bearing members match the alignment ruler; the linear module is used to drive the moving part to move along the length direction of the linear module, and the moving part is used to drive the alignment ruler to move between the two side bearing members; the two sides of the alignment moving member respectively limit the left and right feeding channels between the two side bearing members;

[0024] The first sensor group is arranged at the feeding channel below the first roller conveying unit, and the first sensor group is located between the linear module and the feeding area; the second sensor group is arranged below the first roller conveying unit and corresponds to the position of the linear module; a distance is set between the first sensor group and the second sensor group; the first sensor group is used to detect whether the PCB light board to be detected is in place and the feeding channel closest to the PCB light board to be detected; the second sensor group is used to detect whether the PCB light board to be detected is successfully aligned to the side; the linear module is also used to control the alignment ruler to align the PCB light board to be detected to the left feeding channel or the right feeding channel according to the detection result of the first sensor group;

[0025] The servo module is arranged below the first roller conveying unit and close to the feeding area, and the servo module is connected to the roller transmission near the first sensor group; the servo module is used to slow down the roller connected to the servo module after the first sensor group detects the PCB light board to be detected.

[0026] As an improved solution, the platform angle calibration mechanism includes: a rotating motor, a rotating bracket and an arc-shaped slide rail;

[0027] The rotating motor is horizontally arranged below the detection platform and located at one side of the detection platform. The rotating motor is arranged corresponding to the center position of the detection platform, and the output end of the rotating motor is horizontally arranged.

[0028] The rotating bracket is arranged below the detection platform in parallel with the detection platform and is located between the detection platform and the rotating motor. The rotating bracket is arranged along the length direction of the detection platform. The center of the bottom of the rotating bracket is sleeved on the output end of the rotating motor through a connecting piece. The rotating motor is used to control the rotating bracket to rotate with the output shaft of the rotating motor as the central axis. The rotating bracket is used to drive the detection platform to rotate in the horizontal direction, and the detection platform can adjust its level when rotating.

[0029] Arc-shaped slide rails are respectively provided below the two ends of the detection platform and close to the rotating bracket, and sliders are respectively provided at the positions corresponding to the two arc-shaped slide rails on the rotating bracket, the sliders correspond to the arc-shaped slide rails one by one, and a slide groove matching the shape of the arc-shaped slide rail is provided on the side of the slider facing the arc-shaped slide rail, and the slider is slidably connected to the arc-shaped slide rail through the slide groove; the two arc-shaped slide rails are symmetrically arranged, and the concave surfaces of the two arc-shaped slide rails are arranged opposite to each other, and the concave surfaces of the two arc-shaped slide rails are both facing the position directly above the output shaft of the rotating motor;

[0030] A level gauge for determining the horizontality of the detection platform is also installed at the bottom of the rotating bracket.

[0031] As an improved solution, the PCB detection mechanism includes: an upper lifting module, an upper line scanning camera module, an upper light source module, a lower line scanning camera module and a lower light source module;

[0032] The upper lifting module is arranged above the detection platform and close to the first detection strip hole; the upper line scanning camera module is installed on the upper lifting module and corresponds to the position above the first detection strip hole; the lenses of the upper line scanning camera module are all vertically downward and arranged toward the first detection strip hole; the upper light source module is composed of two inclined upper light source lamp groups, the two inclined upper light source lamp groups are respectively arranged along the length direction of the first detection strip hole, the two inclined upper light source lamp groups are symmetrically arranged on the upper surface of the detection platform about the first detection strip hole, and the two inclined upper light source lamp groups are inclinedly arranged on both sides of the first detection strip hole; the upper lifting module is used to control the displacement of the upper line scanning camera module in the vertical direction; the upper light source module is used for fill light;

[0033] The down-line scanning camera module is installed below the detection platform and corresponds to the position below the second detection strip hole; the lenses of the down-line scanning camera module are all vertically facing upward and arranged toward the second detection strip hole; the lower light source module is composed of two inclined lower light source lamp groups, and the two inclined lower light source lamp groups are respectively arranged along the length direction of the second detection strip hole, and the two inclined lower light source lamp groups are symmetrically arranged on the lower surface of the detection platform about the second detection strip hole, and the two inclined lower light source lamp groups are inclinedly arranged on both sides of the second detection strip hole; the lower light source module is used for fill light.

[0034] On the other hand, the present invention also provides a PCB automatic double-sided detection method, comprising the following steps:

[0035] Measuring a first thickness value of the PCB bare board to be inspected, and analyzing the optimal detection distance of the PCB inspection mechanism based on the AI ​​technology and the first thickness value;

[0036] In response to the PCB light board to be detected being fed in, the platform angle calibration mechanism is called to calibrate the horizontality of the detection area, and the adaptive edge-pull mechanism is called to align the PCB light board to be detected to the feeding channel closest to the PCB light board to be detected;

[0037] In response to the PCB light board to be detected entering the feeding channel, calling the PCB transmission mechanism to transmit the PCB light board to be detected to the detection area in alignment; obtaining the second thickness value of the PCB light board to be detected, and adjusting the detection distance of the PCB detection mechanism according to the optimal detection distance and the second thickness value;

[0038] In response to the PCB light board to be detected being transmitted to the detection area and the detection distance of the PCB detection mechanism being adjusted, the PCB light board to be detected is pressed by the PCB transmission mechanism, and the PCB detection mechanism is called to perform upper and lower double-sided simultaneous detection of the pressed PCB light board to be detected.

[0039] On the other hand, the present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the PCB automatic double-sided detection method are implemented.

[0040] On the other hand, the present invention further provides a computer device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; wherein:

[0041] The memory is used to store computer programs;

[0042] The processor is used to execute the steps of the PCB automatic double-sided detection method by running the program stored in the memory.

[0043] The beneficial effects of the technical solution of the present invention are:

[0044] 1. The PCB automatic double-sided inspection system of the present invention has a double-station double-feeding channel, and supports adaptive incoming material alignment according to the incoming material position, so that the incoming material is fed into the most matching feeding channel, ensuring the accuracy and stability of the feeding, thereby improving the inspection accuracy, and is suitable for batch PCB inspection processes, with high inspection efficiency.

[0045] 2. The PCB automatic double-sided detection system described in the present invention can perform horizontal calibration on the detection platform, thereby preventing detection errors caused by long-term use of the equipment, further improving the detection performance reliability of the equipment, ensuring detection accuracy, and improving detection effectiveness and correctness.

[0046] 3. The PCB automatic double-sided inspection system described in the present invention can realize the synchronous inspection of the front and back sides of the PCB. The present invention is different from the existing scheme in the layout of the upper and lower symmetrical double-sided inspection cameras. Through the mutually staggered design of the inspection holes, inspection cameras and inspection light sources, the independence of the front and back sides when inspecting simultaneously is stronger, there is no mutual interference between the upper and lower inspection mechanisms, and the inspection accuracy is more precise.

[0047] 4. The PCB automatic double-sided inspection system described in the present invention can automatically adjust the field of view and spacing of the upper and lower inspection cameras according to the thickness of the PCB, thereby improving the inspection flexibility and the scope of application of the present invention.

[0048] 5. The PCB automatic double-sided detection system described in the present invention can be integrated into a product production line, and can realize online production detection along with the product production line. The detection process is efficient, and the double-sided detection of the PCB can be completed through a one-time process. The structural design is stable and meets the high-speed motion scene. It has high detection efficiency and detection accuracy, which makes up for the defects of the existing technology and has high application value.

[0049] 6. The PCB automatic double-sided detection method described in the present invention can orderly call the PCB transmission mechanism and the PCB detection mechanism, thereby realizing the system logic of the PCB automatic double-sided detection system described in the present invention.

[0050] 7. The computer-readable storage medium described in the present invention can guide the PCB transmission mechanism and the PCB detection mechanism to cooperate, thereby realizing the PCB automatic double-sided detection method described in the present invention, and the computer-readable storage medium described in the present invention also effectively improves the operability of the PCB automatic double-sided detection method.

[0051] 8. The computer device described in the present invention can store and execute the computer-readable storage medium, thereby realizing the PCB automatic double-sided detection method described in the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0053] Figure 1 It is a schematic diagram of the three-dimensional structure of the automated double-sided inspection system for PCB bare boards according to Embodiment 1 of the present invention;

[0054] Figure 2 is a schematic diagram of the three-dimensional structure of the automated double-sided inspection system for PCB light boards described in Embodiment 1 of the present invention from another perspective;

[0055] Figure 3 is a schematic diagram of the three-dimensional structure of the automated double-sided inspection system for PCB light boards described in Embodiment 1 of the present invention at another viewing angle;

[0056] Figure 4 1 is a schematic side view of the structure of the automated double-sided inspection system for a PCB bare board according to Embodiment 1 of the present invention;

[0057] Figure 5 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0058] Figure 6 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0059] Figure 7 is a schematic diagram of the combined structure of the platform angle calibration mechanism and the detection platform in the automated double-sided detection system for PCB light boards according to Embodiment 1 of the present invention;

[0060] Figure 8 is a schematic diagram of the combined structure of the platform angle calibration mechanism and the detection platform after the first support frame is removed in the automated double-sided detection system for PCB light boards described in Example 1 of the present invention;

[0061] Fig. 9 1 is a flow chart of the automated double-sided inspection method for a bare PCB according to Embodiment 2 of the present invention;

[0062] Fig.10 is a schematic diagram of the structure of the computer device described in Example 4 of the present invention;

[0063] The symbols in the accompanying drawings are explained as follows:

[0064] 1. workbench; 101. testing platform; 102. first testing strip hole; 103. second testing strip hole;

[0065] 201, roller; 202, speed regulating motor; 203, first support frame; 204, front pressure roller; 205, rear pressure roller; 206, matching roller; 207, distance meter; 208, first transmission belt;

[0066] 301, first sensor group; 302, second sensor group; 303, alignment moving member; 304, side bearing member; 305, second transmission belt; 306, servo module; 307, linear module; 308, second support frame; 309, alignment ruler;

[0067] 401, upper lifting module; 402, upper line scanning camera module; 403, tilted upper light source; 404, lower line scanning camera module; 405, tilted lower light source; 406, line scanning camera capture range; 407, third support frame;

[0068] 501, rotating motor; 502, rotating bracket; 503, arc-shaped slide rail; 504, slider; 505, rotating connector;

[0069] 6. PCB bare board to be tested;

[0070] 1501, processor; 1502, communication interface; 1503, memory; 1504, communication bus. DETAILED DESCRIPTION

[0071] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0072] In the description of the present invention, it should be noted that the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all of the embodiments; based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0073] The terms "first", "second", etc. in the specification and claims of this article and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of this article described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, device, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0074] In the description of the present invention, it is necessary to understand that the present invention is applied to the PCB production process, integrated in the light board production line, and detects the product production quality in real time, which can ensure the monitoring and control of the production process.

[0075] Embodiment 1, this embodiment provides an automated double-sided inspection system for a PCB bare board, such as Figure 1 to Figure 8 As shown, including:

[0076] The core function of this system is to realize online fully automatic PCB bare board detection to meet the high-quality and high-efficiency production needs. Along with the transportation of PCB boards, it can detect the upper and lower sides of the PCB at the same time, greatly improving the detection efficiency.

[0077] As a preferred embodiment, the device mainly includes: a PCB transmission mechanism, a PCB detection mechanism, a platform angle calibration mechanism and an adaptive side-pull mechanism; the PCB transmission mechanism is provided with a detection area and a feeding area arranged away from the detection area; the PCB detection mechanism is arranged corresponding to the detection area, and the PCB detection mechanism is arranged corresponding to the upper and lower sides of the detection area; the platform angle calibration mechanism is arranged at a position below the corresponding detection area on the PCB transmission mechanism, and the adaptive side-pull mechanism is arranged at a position close to the feeding area on the PCB transmission mechanism; the PCB transmission mechanism is mainly used to transmit the PCB light board to be detected, and the PCB detection mechanism is mainly used to perform upper and lower double-sided simultaneous detection of the transmitted PCB light board 6 to be detected; the platform angle calibration mechanism is used to calibrate the horizontality of the detection area, and the adaptive side-pull mechanism is used to align the PCB to a matching feeding channel when PCB incoming material appears in the feeding area.

[0078] As a preferred implementation, the PCB transmission mechanism includes: a conveying module and a pressing module;

[0079] The conveying module includes: a first roller conveying unit, a second roller conveying unit and a detection platform 101, which are all horizontally arranged; the first roller conveying unit and the second roller conveying unit are arranged side by side and adjacently, and a gap is provided between the first roller conveying unit and the second roller conveying unit, and the detection platform 101 is horizontally arranged at the gap, and the upper surface of the detection platform 101 is the aforementioned detection area; in this embodiment, the first roller conveying unit is used to convey the PCB to be detected to the detection area, and the second roller conveying unit is used to receive the PCB after detection; wherein the first roller conveying unit is composed of a speed regulating motor 202, a chain and a plurality of rollers 201; the plurality of rollers 201 are rotatably installed on the workbench 1, The speed regulating motor 202 is arranged on the workbench 1 below the plurality of rollers 201, and the speed regulating motor 202 is connected to an active roller among the plurality of rollers 201 through a first transmission belt 208, and the plurality of rollers 201 are connected to each other through a chain (every two adjacent rollers 201 are connected to each other through a chain), and the speed regulating motor 202 is driven by the active roller and other driven rollers to realize the conveying function; wherein, the second roller conveying unit is composed of a plurality of rollers 201, and the second roller conveying unit is used to connect the subsequent process and transmit the tested PCB to the next process; the head end of the first roller conveying unit is the feeding area, and the end of the first roller conveying unit is close to the detection platform 101.

[0080] Among them, the clamping module is arranged above the two rollers 201 on both sides of the detection platform 101, and the clamping module is composed of a front pressing roller 204 and a rear pressing roller 205; wherein, the two rollers 201 located on the left and right sides of the detection platform 101 are two matching rollers 206 respectively; the front pressing roller 204 and the rear pressing roller 205 are respectively arranged above the two matching rollers 206, and there is a gap between the front pressing roller 204 and the matching roller 206, and between the rear pressing roller 205 and the matching roller 206, respectively, and the gap is slightly smaller than the thickness of the PCB to be detected, so that the PCB to be detected is compressed when it is transmitted to this position; in this embodiment, the front pressing roller 204 and the rear pressing roller 205 are installed on the first support frame 203 at both ends of the detection platform 101, and do not interfere with the transmission of the PCB.

[0081] Among them, two rectangular hollows are provided on the detection platform 101 along the length direction of the detection platform 101, and the hollows are respectively the first detection bar hole 102 and the second detection bar hole 103, which are used for PCB detection mechanisms on the upper and lower sides to perform PCB detection. The two detection bar holes are symmetrical with respect to the center of the detection platform 101 and are arranged along the length direction of the detection platform 101.

[0082] As a preferred embodiment, the PCB detection mechanism includes: an upper detection module and a lower detection module; the upper detection module is arranged above the detection platform 101 and corresponds to the position of the first detection bar hole 102, and the lower detection module is arranged below the detection platform 101 and corresponds to the position of the second detection bar hole 103; both the upper detection module and the lower detection module support lifting and light source supplement, thereby improving the detection quality;

[0083] Among them, the upper detection module includes: an upper lifting module 401, an upper line scan camera module 402 and an upper light source module; the upper lifting module 401 is arranged above the detection platform 101 and close to the first detection strip hole 102 through the third support frame 407; the upper line scan camera module 402 is installed on the upper lifting module 401 and corresponds to the position above the first detection strip hole 102; the upper lifting module 401 is used to control the displacement of the upper line scan camera module 402 in the vertical direction, and the upper line scan camera module 402 is composed of four line scan cameras arranged side by side in sequence, and the lenses of the four line scan cameras are vertically arranged downward. The line scan cameras are all TDI line array cameras. Using this camera for detection can reduce exposure time and maximize production efficiency; the upper light source module is tilted and arranged on the detection platform 101 at the positions on both sides of the first detection strip hole 102 through the light source support frame; the upper light source module is composed of two tilted upper light sources 403 light groups, and the two tilted upper light sources 403 light groups are respectively arranged along the length direction of the first detection strip hole 102, and the two tilted upper light sources 403 light groups are symmetrically arranged about the first detection strip hole 102, and the two tilted upper light sources 403 light groups are tilted and arranged on both sides of the first detection strip hole 102;

[0084] Among them, the lower detection module includes: a lower line scan camera module 404 and a lower light source module; the lower line scan camera module 404 is installed below the detection platform 101 and corresponds to the position below the second detection strip hole 103, and the lower line scan camera module 404 is also composed of four line scan cameras arranged side by side in sequence, and the lenses of the four line scan cameras are all arranged vertically upward; the lower light source module is arranged between the lower line scan camera module 404 and the second detection strip hole 103 through a light source support frame; the lower light source module is composed of two inclined lower light sources 405 lamp groups, and the two inclined lower light sources 405 lamp groups are symmetrically arranged about the second detection strip hole 103.

[0085] Among them, whether it is the upper line scan camera module 402 or the line scan camera module, the lens capture range of its four line scan cameras matches the width or length of the entire PCB, and the size of the first detection bar hole 102 and the second detection bar hole 103 also matches the width or length of the entire PCB;

[0086] Among them, both the upper light source module and the lower light source module support the adjustment of visible light and non-visible light, have stronger robustness and applicability, and can be used in a variety of project scenarios or expansions.

[0087] As a preferred embodiment, the platform angle calibration mechanism includes: a rotating motor 501, a rotating bracket 502 and an arc-shaped slide rail 503;

[0088] The rotating motor 501 is horizontally arranged below the detection platform 101 and located at one side of the detection platform 101. The rotating motor 501 is arranged corresponding to the center position of the detection platform 101, and the output end of the rotating motor 501 is horizontally arranged.

[0089] The rotating bracket 502 is arranged below the detection platform 101 and between the detection platform 101 and the rotating motor 501 in parallel with the detection platform 101. The rotating bracket 502 is arranged along the length direction of the detection platform 101. The center of the bottom of the rotating bracket 502 is sleeved on the output end of the rotating motor 501 through a rotating connector 505, so that the rotating motor 501 can control the rotating bracket 502 to rotate with the output shaft of the rotating motor 501 as the central axis, so that the detection platform 101 is rotated and adjusted and corrected in the horizontal direction according to the angle.

[0090] Among them, since the angle rotation belongs to fine adjustment, a corresponding limit assembly is set, that is, an arc-shaped slide rail 503. There are two arc-shaped slide rails 503, which are respectively set at the lower positions of the two ends of the detection platform 101 and close to the rotating bracket 502; sliders 504 are respectively provided at the positions corresponding to the two arc-shaped slide rails 503 on the rotating bracket 502, and the sliders 504 correspond to the arc-shaped slide rails 503 one by one, and a slide groove matching the shape of the arc-shaped slide rail 503 is opened on the side of the slider 504 facing the arc-shaped slide rail 503, and the slider 504 is slidably connected to the arc-shaped slide rail 503 through the slide groove; the two arc-shaped slide rails 503 are symmetrically arranged with each other, and the concave surfaces of the two arc-shaped slide rails 503 are arranged opposite to each other, both facing the position directly above the output shaft of the rotating motor 501;

[0091] Among them, a spirit level for determining the horizontality of the detection platform 101 is also installed at the bottom of the rotating bracket 502. With such a design, when the spirit level detects that the detection platform 101 is not horizontal, the rotating motor 501 can control the rotation of the detection platform 101, and then adjust the horizontal position of the detection platform 101, thereby ensuring that the PCB is in a completely horizontal state during the detection process, ensuring the correctness of the detection field of view, preventing errors caused by the tilt of the PCB detection, and improving accuracy.

[0092] As a preferred embodiment, the adaptive edge mechanism includes: a first sensor group 301, a second sensor group 302, a linear module 307 and a servo module 306;

[0093] Among them, the servo module 306 is arranged below the first roller conveying unit and is close to the feeding area; the linear module 307 is arranged above the first roller conveying unit and is close to the feeding area through the second support frame 308, and the linear module 307 is arranged along the length direction of the roller 201, and its moving range is the length of the roller 201; the moving part of the linear module 307 is installed with a positioning moving part 303, the positioning moving part 303 is usually located at the center position of the linear module 307, and the positioning moving part 303 extends vertically downward to the upper position of the first roller conveying unit, and the lower end of the positioning moving part 303 is a positioning ruler 309 corresponding to the PCB size, and the bottom of the positioning ruler 309 is provided with a ruler groove for avoiding a number of rollers 201; the first roller conveying unit The upper position of the element, the positions on both sides of the alignment moving member 303 are also provided with two side bearing members 304 corresponding to the alignment ruler 309, and the two sides of the alignment moving member 303 and the two side bearing members 304 respectively limit the left and right feeding channels; the two side bearing members 304 are symmetrically arranged, and the sizes of the two side bearing members 304 match the alignment ruler 309. The two side bearing members 304 are installed on the workbench 1 through connecting members, and are penetrated on both sides of the roller 201, and do not interfere with the transmission of the roller 201; the linear module 307 is used to drive its moving part to move along the length direction of the linear module 307, thereby driving the alignment ruler 309 of the alignment moving member 303 to move between the two side bearing members 304;

[0094] Among them, the first sensor group 301 and the second sensor group 302 are both arranged below the first roller conveying unit, and the first sensor group 301 is located between the linear module 307 and the feeding area, and is used to detect whether the PCB to be detected is in place and the distance between the PCB to be detected and the nearest feeding channel; the second sensor group 302 is located below the linear module 307, and is used to detect whether the PCB is successfully aligned to the side; a distance is set between the first sensor group 301 and the second sensor group 302; the first sensor group 301 has two sensors, which are respectively located on two feeding channels, and the second sensor group 302 also has two sensors, which are respectively located on two feeding channels; when a PCB appears in the feeding area, the two first sensors detect relevant signals and judge that incoming materials appear. At this time, the two first sensors respectively detect the distance between the incoming PCB and themselves. When the incoming PCB is close to the first sensor on the left feeding channel, it is judged that the incoming PCB needs to be close to the left feeding channel, and when the incoming PCB is close to the first sensor on the right feeding channel, it is judged that the incoming PCB needs to be close to the right feeding channel;

[0095] The linear module 307 is used to control the alignment moving member 303 to perform horizontal displacement in the left-right direction along the roller 201 of the first roller conveying unit according to the judgment of the first sensor group 301, so as to align the PCB transmitted by the first roller conveying unit to the left side support member 304 or the right side support member 304, so as to make the PCB enter the left side feeding channel or the right side feeding channel; each time the PCB is aligned to the side, the second sensors of the two feeding channels are detected, and when the second sensor group 302 detects the relevant signal, it is determined that the PCB is successfully aligned to the side, and at this time, the linear module 307 controls the alignment moving member 303 to reset;

[0096] Among them, the servo module 306 is a servo motor acceleration and reduction gear, which is connected to a roller 201 near the first sensor group 301 through an additional second transmission belt 305. It is used to slow down the roller 201 connected to it after the first sensor group 301 detects the incoming PCB, thereby ensuring the subsequent smooth and reliable side-pull action to prevent damage to the PCB; finally, through the above-mentioned structural design, the adaptive side-pull mechanism can realize the side-pull processing action when feeding into two workstations.

[0097] As a preferred implementation, the device of the present application also reserves laser mark or inkjet printer hardware and communication interface, has stronger adaptability and interconnectivity, and can cooperate with other working equipment to achieve different integrated functional requirements;

[0098] As a preferred implementation, a rangefinder 207 is also provided on the bracket on one side of the detection platform 101; the rangefinder 207 is mainly used to detect the thickness of the product, and then cooperate with the upper lifting module 401 and the lower lifting module to adjust the working position of the line scan camera to ensure the working distance between the product and the camera, and then ensure that the distance between the lens and the product surface is always consistent, solving the detection error problem caused by inconsistent working distance due to product thickness factors;

[0099] As a preferred implementation, the main working process of the device includes:

[0100] First, based on the cooperation of the rangefinder 207 and the upper lifting module 401, the equipment is debugged: for example, a PCB with a conveying thickness of 1mm is debugged, and AI technology is used here for automatic focus debugging, and the lifting module is used to control the line scan camera in this application to focus on the best clarity; for example, the best working distance is automatically tested to be 100mm, then taking the upper lifting module 401 as an example, when the lifting axis of the upper lifting module 401 is 100mm away from the 1mm test PCB, the upper line scan camera module 402 focuses on the best clarity; then the upper lifting module 401 is called to adjust the displacement of the upper line scan camera module 402 in the vertical direction according to the best working distance of 100mm, and finally control its lifting axis to move to a numerical height of 101m;

[0101] After the above debugging is completed, the formal testing steps are carried out:

[0102] The PCB enters the first roller conveying unit from the left side, and is sent to the adaptive side-pull mechanism by the first roller conveying unit. The first sensor group 301 of the adaptive side-pull mechanism detects that the PCB is in place; the linear module 307 of the adaptive side-pull mechanism controls the alignment moving member 303 to align the PCB to the left or right side, and the second sensor group 302 senses that the PCB is in place, and then the linear module 307 controls the alignment moving member 303 to reset;

[0103] The level meter detects whether the detection platform 101 is horizontal. When it is not horizontal, the rotating motor 501 can control the rotation of the detection platform 101, and then adjust the horizontal position of the detection platform 101, so as to ensure that the PCB is in a completely horizontal state during the detection process, ensure the correctness of the detection field of view, prevent errors caused by the tilt of the PCB detection, and improve the accuracy; in this process, the first roller conveying unit of the conveying module is controlled to reduce the rotation speed, and then the rangefinder 207 is called to measure the thickness of the PCB, and the thickness value is transmitted to the PLC that controls the upper lifting module 401 and the lower lifting module; the PLC controls the upper lifting module 401 and the lower lifting module to adjust the position height of the upper line scanning camera and the lower line scanning camera according to the PCB thickness and the optimal working distance debugged above;

[0104] For example, if the PCB thickness is 5mm, take the lifting module 401 as an example, and control its lifting axis to rise 4mm accordingly after debugging, and move to the numerical position of 105mm, so as to ensure that the working distance is 100mm;

[0105] For another example, if the PCB thickness is 0.2 mm, the lifting module 401 is taken as an example, and its lifting axis is controlled to drop by 0.8 mm after debugging, and move to a numerical position of 100.2 mm, so as to ensure that the working distance is 100 mm.

[0106] After the above alignment is completed, the focus clarity between the line scan camera and the product can be guaranteed. When the first roller conveying unit subsequently transfers the PCB to the detection platform 101, the front pressing roller 204 of the pressing module cooperates with the matching roller 206 to limit the PCB and reduce the speed, so that the PCB can be stably detected on the detection platform 101.

[0107] When the PCB is transmitted on the inspection platform 101, the upper line scanning camera and the lower line scanning camera are triggered to take pictures and collect images for inspection. After the inspection, the PCB is slowly and steadily brought out of the inspection platform 101 by the action of the rear pressure roller 205 and the matching roller 206, and transferred to the subsequent second roller conveying unit;

[0108] Subsequently, the second roller conveying unit conveys the inspected PCB to other production lines or ends the conveying, completing the entire inspection process.

[0109] Embodiment 2, based on the same inventive concept as the automated double-sided inspection system for a PCB bare board described in Embodiment 1, this embodiment provides an automated double-sided inspection method for a PCB bare board, such as Fig. 9 As shown, the following steps are included:

[0110] S100, measuring a first thickness value of a PCB optical board to be inspected, and analyzing an optimal inspection distance of a PCB inspection mechanism based on AI technology and the first thickness value.

[0111] S200, in response to the feeding of the PCB light board to be detected, calling the platform angle calibration mechanism to calibrate the horizontality of the detection area, calling the adaptive edge mechanism to align the PCB light board to be detected to the feeding channel closest to the PCB light board to be detected.

[0112] S300, in response to the PCB light board to be detected entering the feeding channel, calling the PCB transmission mechanism to transmit the PCB light board to be detected to the detection area; obtaining the second thickness value of the PCB light board to be detected, and adjusting the detection distance of the PCB detection mechanism according to the optimal detection distance and the second thickness value;

[0113] S301, when the PCB thickness is 5mm, taking the above lifting module as an example, the lifting axis is controlled to rise 4mm correspondingly on the basis of debugging, and move to the numerical position of 105mm to ensure that the working distance is 100mm;

[0114] S303, when the PCB thickness is 0.2mm, taking the above lifting module as an example, the lifting axis is controlled to drop by 0.8mm on the basis of debugging, and move to the numerical position of 100.2mm to ensure that the working distance is 100mm;

[0115] After the alignment is completed, the focus clarity between the line scan camera and the product can be guaranteed. S400: In response to the PCB optical board to be inspected being transmitted to the inspection area and the inspection distance of the PCB inspection mechanism being adjusted, the PCB optical board to be inspected is pressed by the PCB transmission mechanism, and the PCB inspection mechanism is called to perform upper and lower double-sided inspection of the pressed PCB optical board to be inspected simultaneously.

[0116] Embodiment 3: This embodiment provides a computer-readable storage medium, including:

[0117] The storage medium is used to store computer software instructions used to implement the automated double-sided detection method for PCB light boards described in the above-mentioned embodiment 2, which includes a program for executing the above-mentioned automated double-sided detection method for PCB light boards; specifically, the executable program can be built into the automated double-sided detection system for PCB light boards described in embodiment 1, so that the automated double-sided detection system for PCB light boards can implement the automated double-sided detection method for PCB light boards described in embodiment 2 by executing the built-in executable program.

[0118] In addition, the computer-readable storage medium of this embodiment may adopt any combination of one or more computer-readable storage media, wherein the computer-readable storage medium includes electrical, optical, electromagnetic, infrared or semiconductor systems, devices or components, or any combination thereof.

[0119] Embodiment 4, this embodiment provides an electronic device, such as Fig.10 As shown, the electronic device may include: a processor 1501 , a communication interface 1502 , a memory 1503 and a communication bus 1504 , wherein the processor 1501 , the communication interface 1502 , and the memory 1503 communicate with each other via the communication bus 1504 .

[0120] Memory 1503, used for storing computer programs;

[0121] The processor 1501 is used to implement the steps of the automatic double-sided detection method of the PCB bare board described in the above embodiment 1 when executing the computer program stored in the memory 1503.

[0122] As an embodiment of the present invention, the communication bus mentioned in the above terminal can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.10Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0123] As an implementation mode of the present invention, the communication interface is used for communication between the above-mentioned terminal and other devices.

[0124] As an embodiment of the present invention, the memory may include a random access memory (RAM) or a non-volatile memory, such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

[0125] As an embodiment of the present invention, the above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.

[0126] Different from the prior art, the present application discloses an automated double-sided inspection system, method, equipment and medium for PCB optical boards, which can be integrated into a product production line, and can realize online production inspection along with the product production line. The inspection process is efficient, and the double-sided inspection of the PCB can be completed through a one-time process. The structural design is stable and meets the requirements of high-speed motion scenarios. It has high inspection efficiency and accuracy, which makes up for the defects of the prior art and has high application value.

[0127] It should be understood that in the various embodiments of this document, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this document.

[0128] It should also be understood that in the embodiments of this article, the term "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0129] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this article.

[0130] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific execution process of the above-described method can refer to the corresponding process in the aforementioned system, device and unit embodiments, and will not be repeated here.

[0131] In the several embodiments provided herein, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or can be electrical, mechanical or other forms of connection.

[0132] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of this article.

[0133] In addition, each functional unit in each embodiment of this invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional unit.

[0134] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this article is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of this article. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0135] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A PCB automatic double-sided detection system, characterized in that: include: PCB transmission mechanism, PCB detection mechanism, platform angle calibration mechanism and adaptive edge mechanism; The PCB transmission mechanism is provided with a detection area and a feeding area away from the detection area; The PCB detection mechanism is arranged corresponding to the upper and lower sides of the detection area; The platform angle calibration mechanism is arranged on the PCB transmission mechanism at a position corresponding to below the detection area and avoiding the PCB detection mechanism; The adaptive edge-pushing mechanism is arranged on the PCB transmission mechanism at a position close to the feeding area and above the PCB transmission mechanism; The PCB transmission mechanism is used to transmit the PCB light board (6) to be detected; the PCB detection mechanism is used to simultaneously detect the upper and lower surfaces of the transmitted PCB light board (6) to be detected; and the platform angle calibration mechanism is used to calibrate the horizontality of the detection area before detection; The adaptive edge-aligning mechanism comprises: a first sensor group (301), a second sensor group (302), a linear module (307) and a servo module (306); a distance is provided between the first sensor group (301) and the second sensor group (302); the first sensor group (301) is used to detect whether the PCB light board (6) to be detected is in place and the feed channel closest to the PCB light board (6) to be detected; the second sensor group (302) is used to detect whether the PCB light board (6) to be detected is successfully aligned to the edge; the linear module (307) is also used to control the alignment ruler (309) to align the PCB light board (6) to be detected to the left feed channel or the right feed channel according to the detection result of the first sensor group (301).

2. The PCB automatic double-sided detection system according to claim 1, characterized in that: The PCB transmission mechanism comprises: a conveying module and a pressing module; A detection platform (101) is provided in the middle of the conveying module, the pressing module is arranged above the detection platform (101), and the detection platform (101) is the detection area; The detection platform (101) is provided with a first detection bar hole (102) and a second detection bar hole (103) arranged side by side along the length direction of the detection platform (101); the first detection bar hole (102) and the second detection bar hole (103) are respectively arranged to vertically penetrate the detection platform (101); The conveying module is used to transfer the PCB light board (6) to be inspected to the inspection platform (101), and to transfer the inspected PCB light board to the outside of the inspection platform (101); the pressing module is used to limit the conveying speed of the PCB light board on the inspection platform (101); the first inspection bar hole (102) and the second inspection bar hole (103) are respectively used to provide an inspection field of view for the PCB inspection mechanism.

3. The PCB automatic double-sided detection system according to claim 2, characterized in that: The conveying module comprises: a first roller conveying unit and a second roller conveying unit arranged horizontally; The first roller conveying unit and the second roller conveying unit are respectively arranged at two sides of the detection platform (101); the first roller conveying unit is used to convey the PCB light board (6) to be detected to the detection area, and the second roller conveying unit is used to receive the PCB light board after detection; the head end of the first roller conveying unit is the feeding area, and the tail end of the first roller conveying unit is close to the detection platform (101); The first roller conveying unit and the second roller conveying unit are both composed of a plurality of rollers (201) arranged side by side and in parallel, and each two adjacent rollers (201) are in transmission connection with each other; A speed regulating motor (202) is arranged below the roller (201) of the first roller conveying unit. The speed regulating motor (202) is connected to an active roller among the plurality of rollers (201) of the first roller conveying unit through a chain. The speed regulating motor (202) is used to drive the active roller to rotate. The speed regulating motor (202) is linked to a plurality of rollers (201) other than the active roller through the active roller.

4. The PCB automatic double-sided detection system according to claim 3, characterized in that: The pressing module is composed of a front pressing roller (204) and a rear pressing roller (205) arranged parallel to the roller (201); the two rollers (201) located on the left and right sides of the detection platform (101) are two matching rollers (206); the front pressing roller (204) and the rear pressing roller (205) are arranged at positions above the two matching rollers (206), respectively, and gaps are respectively provided between the front pressing roller (204) and the matching roller (206), and between the rear pressing roller (205) and the matching roller (206); First support frames (203) are respectively provided at positions corresponding to the matching rollers (206) at both ends of the detection platform (101); the front pressure roller (204) is rotatably mounted on the first support frame (203) on one side of the detection platform (101); and the rear pressure roller (205) is rotatably mounted on the first support frame (203) on the other side of the detection platform (101).

5. The PCB automatic double-sided detection system according to claim 4, characterized in that: The linear module (307) is arranged above the first roller conveying unit and close to the feeding area. The linear module (307) is arranged along the length direction of the roller (201). A positioning moving member (303) is installed on the moving part of the linear module (307). The lower end of the positioning moving member (303) extends vertically downward to the upper position of the first roller conveying unit. The lower end of the positioning moving member (303) is the positioning ruler (309) that matches the size of the PCB light board (6) to be detected. Two side bearing members (304) are also arranged above the first roller conveying unit. The two side bearing members (304) are located At both sides of the alignment ruler (309), a distance is provided between the two side bearing members (304) and the alignment ruler (309), and the two side bearing members (304) are symmetrically arranged with each other, and the sizes of the two side bearing members (304) match the alignment ruler (309); the linear module (307) is used to drive the moving part to move along the length direction of the linear module (307), and the moving part is used to drive the alignment ruler (309) to move between the two side bearing members (304); the two sides of the alignment moving member (303) respectively limit two left and right feeding channels between the two side bearing members (304); The first sensor group (301) is arranged at the feeding channel below the first roller conveying unit, and the first sensor group (301) is located between the linear module (307) and the feeding area; the second sensor group (302) is arranged below the first roller conveying unit and corresponds to the position of the linear module (307); the servo module (306) is arranged below the first roller conveying unit and close to the feeding area, and the servo module (306) is transmission-connected to a roller (201) close to the first sensor group (301); the servo module (306) is used to decelerate the roller (201) connected to the servo module (306) after the first sensor group (301) detects the PCB optical board (6) to be detected.

6. The PCB automatic double-sided detection system according to claim 5, characterized in that: The platform angle calibration mechanism comprises: a rotating motor (501), a rotating bracket (502) and an arc-shaped slide rail (503); The rotating motor (501) is horizontally arranged below the detection platform (101) and located at one side of the detection platform (101); the rotating motor (501) is arranged corresponding to the center position of the detection platform (101); and the output end of the rotating motor (501) is horizontally arranged; The rotating bracket (502) is arranged parallel to the detection platform (101) below the detection platform (101) and between the detection platform (101) and the rotating motor (501); the rotating bracket (502) is arranged along the length direction of the detection platform (101); the center of the bottom of the rotating bracket (502) is sleeved on the output end of the rotating motor (501) through a connecting piece; the rotating motor (501) is used to control the rotating bracket (502) to rotate with the output shaft of the rotating motor (501) as the central axis; the rotating bracket (502) is used to drive the detection platform (101) to rotate in the horizontal direction, and the detection platform (101) can achieve horizontal adjustment when rotating; Arc-shaped slide rails (503) are respectively provided below the two ends of the detection platform (101) and close to the rotating bracket (502); sliders (504) are respectively provided at positions corresponding to the two arc-shaped slide rails (503) on the rotating bracket (502); the sliders (504) correspond to the arc-shaped slide rails (503) one by one, and a slide groove matching the shape of the arc-shaped slide rail (503) is provided on a surface of the slider (504) facing the arc-shaped slide rail (503); the slider (504) is slidably connected to the arc-shaped slide rail (503) via the slide groove; the two arc-shaped slide rails (503) are symmetrically arranged, and the concave surfaces of the two arc-shaped slide rails (503) are arranged opposite to each other, and the concave surfaces of the two arc-shaped slide rails (503) are both facing the position directly above the output shaft of the rotating motor (501); A level gauge for determining the horizontality of the detection platform (101) is also installed at the bottom of the rotating bracket (502).

7. The PCB automatic double-sided detection system according to claim 5, characterized in that: The PCB detection mechanism comprises: an upper lifting module (401), an upper line scanning camera module (402), an upper light source module, a lower line scanning camera module (404) and a lower light source module; The upper lifting module (401) is arranged above the detection platform (101) and close to the first detection strip hole (102); the upper line scanning camera module (402) is installed on the upper lifting module (401) and corresponds to the position above the first detection strip hole (102); the lenses of the upper line scanning camera module (402) are all arranged vertically downward and toward the first detection strip hole (102); the upper light source module is composed of two inclined upper light source (403) light groups, the two inclined upper light source (403) light groups are respectively arranged along the length direction of the first detection strip hole (102), the two inclined upper light source (403) light groups are symmetrically arranged on the upper surface of the detection platform (101) with respect to the first detection strip hole (102), and the two inclined upper light source (403) light groups are inclinedly arranged on both sides of the first detection strip hole (102); the upper lifting module (401) is used to control the displacement of the upper line scanning camera module (402) in the vertical direction; the upper light source module is used for fill light; The lower line scanning camera module (404) is installed below the detection platform (101) and corresponds to the position below the second detection strip hole (103); the lenses of the lower line scanning camera module (404) are all vertically facing upward and arranged toward the second detection strip hole (103); the lower light source module is composed of two inclined lower light source (405) light groups, the two inclined lower light source (405) light groups are respectively arranged along the length direction of the second detection strip hole (103), the two inclined lower light source (405) light groups are symmetrically arranged on the lower surface of the detection platform (101) with respect to the second detection strip hole (103), and the two inclined lower light source (405) light groups are inclinedly arranged on both sides of the second detection strip hole (103); the lower light source module is used for fill light.

8. A PCB automatic double-sided detection method, characterized in that: The following steps are involved: Measuring a first thickness value of the PCB bare board to be inspected, and analyzing the optimal detection distance of the PCB inspection mechanism based on the AI ​​technology and the first thickness value; In response to the PCB light board to be detected being fed in, the platform angle calibration mechanism is called to calibrate the horizontality of the detection area, and the adaptive edge-pull mechanism is called to align the PCB light board to be detected to the feeding channel closest to the PCB light board to be detected; In response to the PCB light board to be detected entering the feeding channel, calling the PCB transmission mechanism to transmit the PCB light board to be detected to the detection area in alignment; obtaining the second thickness value of the PCB light board to be detected, and adjusting the detection distance of the PCB detection mechanism according to the optimal detection distance and the second thickness value; In response to the PCB light board to be detected being transmitted to the detection area and the detection distance of the PCB detection mechanism being adjusted, the PCB light board to be detected is pressed by the PCB transmission mechanism, and the PCB detection mechanism is called to perform upper and lower double-sided simultaneous detection of the pressed PCB light board to be detected.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, the steps of the PCB automatic double-sided detection method described in claim 8 are implemented.

10. A computer device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; wherein: The memory is used to store computer programs; The processor is used to execute the steps of the PCB automatic double-sided detection method described in claim 8 by running the program stored in the memory.

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