Board circuit detection equipment and detection system

Abstract

The invention relates to the technical field of PCB circuit detection, and discloses a board circuit detection device and system, and the device comprises a detection table, the upper end surface of the detection table is provided with a sliding groove, the sliding groove is internally provided with a movable placement box, and the sliding groove is internally provided with a moving assembly; a containing cavity is formed in the containing box, and a limiting assembly is arranged in the containing cavity. Opposite lifting plates are arranged above the detection table, a movable plate is arranged between the two lifting plates, and a detection assembly is arranged on the movable plate; a lifting assembly is arranged on the upper end face of the detection table. The movable plate is further provided with an adjusting assembly. Through the above structure, when the PCB on the placing box is located below the detection assembly, the detection assembly carries out appearance maintenance scanning on the circuit on the PCB so as to detect whether the welding position of the circuit on the PCB is correct or not, the detection assembly replaces manual appearance detection on the PCB, the situation of missing detection of the PCB is greatly reduced, and the detection efficiency of the PCB is improved. And the detection effect of the PCB is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB board circuit detection, and in particular to a board circuit detection device and a detection system. Background Art

[0002] With the development of electronic technology, various electronic devices have been developed for various purposes. These electronic devices usually include built-in circuit boards. Before these electronic devices leave the factory, they are usually subjected to appearance inspection of the circuit boards. The existing method usually relies on manual observation of the circuits on the PCB to ensure that the circuits are installed correctly on the PCB. In actual use, this method is prone to visual fatigue due to the long-term observation of the PCB by the workers, which may cause the circuits on the PCB to be missed, resulting in poor inspection results. Summary of the Invention

[0003] The object of the present invention is to provide a board circuit detection device and a detection system to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A PCB circuit detection device includes a detection table, wherein the upper end surface of the detection table is provided with a slide groove, a movable placement box is provided in the slide groove, and a moving component is provided in the slide groove, and the moving component is used to drive the placement box to move;

[0006] A placement cavity is provided in the placement box, and a limit assembly is provided in the placement cavity. The movement of the placement box is used to drive the limit assembly to limit the PCB board on the upper end surface of the placement box;

[0007] There are two lifting plates above the test table, and a movable plate is provided between the two lifting plates. The movable plate is provided with a test component, which is used to perform appearance inspection on the PCB board.

[0008] The upper end surface of the testing table is provided with a lifting assembly, which is used to adjust the height of the movable plate;

[0009] The movable plate is further provided with an adjusting component, and the adjusting component is used for adjusting the position of the movable plate.

[0010] Preferably, the moving assembly includes a first electric push rod provided in the slide slot, and the first electric push rod is used to drive the placement box to move back and forth along the slide slot.

[0011] Preferably, the upper end surface of the detection table is provided with a relative fixing plate, the upper end surface of each fixing plate is provided with a fixing groove, a first inclined surface is provided on one side wall of the fixing groove, and the upper end surface of the placement box is provided with a limiting groove connected to the placement cavity;

[0012] The limiting assembly includes slides that are relatively arranged in the placement cavity and move. The side walls of the two slides that are away from each other are each provided with a slider with one end extending out of the placement box. A second inclined surface that cooperates with the first inclined surface is provided on one side wall of the slider. The upper end surfaces of the slides are each provided with a connecting plate with the upper end extending out of the limiting groove. The protruding ends of the connecting plates are each provided with a limiting plate. The side walls where the two limit plates are close to each other are each provided with a movable abutment plate. The movement of the placement box is used to drive the two limit plates close to each other, so that the two abutment plates limit the PCB board on the upper end surface of the placement box.

[0013] Preferably, opposite sliding rods for the two slides to be mounted on are provided in the placement cavity, and first springs are mounted on the sliding rods to push the two slides away from each other.

[0014] Preferably, a first rotatable threaded rod is provided on the side walls of the two abutment plates that are away from each other, and one end of the first threaded rod is threadedly passed through the corresponding limiting plate.

[0015] Preferably, relative limiting cylinders are provided on the side walls of the two abutments that are away from each other, and a cavity is provided in the limiting cylinders. A movable circular plate is provided in the cavity, and a round rod is provided on the side wall of the circular plate facing the abutment plate. One end of the round rod passes through the corresponding abutment plate, and a buffer plate is provided between the through ends of the two round rods. A second spring is also provided in the cavity, and the second spring is used to push the circular plate toward the abutment plate.

[0016] Preferably, the upper end surface of the detection platform is provided with a plurality of first guide rods, and the lower end surface of the lifting plate is provided with a plurality of second guide rods with lower ends inserted into the corresponding first guide rods;

[0017] The lifting assembly includes a bending plate with an L-shaped cross-section and is arranged on a fixed plate. The upper end surface of the bending plate is provided with a second electric push rod, which is used to drive the corresponding lifting plate to adjust the height.

[0018] Preferably, an adjustment plate is provided between the two lifting plates;

[0019] The adjustment assembly includes a moving seat arranged on the upper end surface of the moving plate. A second rotatable threaded rod is provided on the side wall of the moving seat facing the adjustment plate. One end of the second threaded rod is threaded through the adjustment plate. The second threaded rod rotates to drive the moving plate to move, thereby adjusting the position of the moving plate.

[0020] Preferably, the bottom wall of the slide is provided with opposite card slots with T-shaped cross sections, and the lower end surface of the placement box is provided with opposite card blocks that are inserted into the corresponding card slots, and the card blocks are arranged in a T-shaped cross section.

[0021] This embodiment further provides a PCB circuit detection system, which uses the above-mentioned PCB circuit detection device and specifically includes the following steps:

[0022] S1. First, place the PCB to be inspected on the upper surface of the placement box. Then, the placement box is driven by the moving component to move. When the placement box moves, the placement box drives the limit component to limit the position of the PCB on the placement box through the limit component to prevent the PCB from shifting on the placement box.

[0023] S2. When the placement box moves to the bottom of the movable plate, the movable assembly stops driving the placement box. At this time, the inspection assembly on the movable plate performs an appearance inspection on the PCB on the placement box. After the inspection assembly completes the appearance inspection of the PCB, the movable assembly drives the placement box to move to its initial position. At the same time, the limit assembly releases the limit on the PCB. Then, the inspected PCB is removed from the placement box.

[0024] S3. When the inspection component performs appearance inspection on PCB boards of different sizes, the height of the movable plate is adjusted by the lifting component so that the inspection range of the inspection component can be adjusted according to the size of the PCB board;

[0025] S4. When the inspection component performs appearance inspection on PCB boards of different sizes, it is also necessary to adjust the position of the movable plate through the adjustment component so that the inspection component on the movable plate is located directly above the PCB board to ensure the inspection effect of the inspection component on the PCB board;

[0026] S5. When the industrial camera is an AI smart camera connected to an intelligent control system, it will automatically identify and detect different problems on the PCB surface each time it detects a PCB board. The system will then provide feedback to the system through a flash display so that the staff can determine whether the board is good or not.

[0027] S6. After manually determining good or defective products in step S5, the intelligent control system will automatically learn and determine which are good and defective products.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. In the present invention, when the PCB board on the placement box is located directly below the industrial camera, the industrial camera performs an appearance inspection and scan of the circuits on the PCB board, thereby detecting whether the circuits are correctly soldered on the PCB board. Compared with existing PCB board circuit inspection equipment, in actual use, the industrial camera replaces manual appearance inspection of the PCB board, thereby greatly reducing the possibility of missed inspections of the PCB board and improving the inspection effect of the PCB board.

[0030] 2. The present invention adjusts the height of the movable plate through the lifting assembly, that is, it can adjust the detection range of the industrial camera, so that the detection range of the industrial camera is adapted to PCB boards of different sizes, thereby enabling the industrial camera to perform appearance inspection on PCB boards of different sizes.

[0031] 3. The present invention fine-tunes the position of the movable plate by adjusting the assembly so that the industrial camera can be located directly above the PCB board, thereby avoiding a large deviation between the industrial camera and the PCB board, which would affect the industrial camera's detection effect on the PCB board.

[0032] 4. In the present invention, the two buffer plates drive the circular plates to squeeze the second spring via the circular rod, thereby reducing the squeezing force on the PCB, that is, reducing the damage to the side wall of the PCB.

[0033] 5. In the present invention, the bottom wall of the slide is provided with opposite card slots with a T-shaped cross section, and the lower end surface of the placement box is fixedly installed with a card block that is opposite and inserted into the corresponding card slot. The card block has a T-shaped cross section. Through the cooperation of the card block and the card slot, the installation box can be moved and installed in the slide, and at the same time, the movement of the placement box is made more stable.

[0034] 6. In the present invention, when the placement box moves, the limit assembly can push the PCB board to the middle of the placement box and limit it, thereby preventing the PCB board on the placement box from being located at the edge of the placement box when the placement box moves to directly below the movable plate, thereby affecting the appearance inspection of the PCB board by the inspection assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The figure is a schematic structural diagram of a board circuit detection device and a detection system in the present invention.

[0036] Figure 2 It is a structural schematic diagram of the placement box installed in the slide slot in the present invention.

[0037] Figure 3 This is a structural diagram of the first electric push rod and the fixing plate installed on the detection platform in the present invention.

[0038] Figure 4 It is a structural schematic diagram of the placement box in the present invention.

[0039] Figure 5 It is a schematic diagram of the half-section structure of the placement box in the present invention.

[0040] Figure 6 It is a schematic diagram of the explosion structure of the limiting cylinder on the abutment plate in the present invention.

[0041] Figure 7 This is a schematic diagram of the structure of the second electric push rod and the lifting plate in the present invention.

[0042] Figure 8 It is a schematic diagram of the exploded structure of the movable plate and the lifting plate in the present invention.

[0043] Figure 9 This is a schematic diagram of the system logic in the present invention.

[0044] The meaning of each number in the figure is:

[0045] 100, testing platform; 101, chute; 110, placement box; 120, lifting plate; 130, moving plate; 131, industrial camera; 140, first electric push rod; 141, support; 150, fixed plate; 151, bending plate; 160, first guide rod; 170, display screen;

[0046] 301, fixing slot; 311, card slot;

[0047] 401, limiting groove; 410, slider; 420, limiting plate; 430, abutment plate; 440, first threaded rod; 450, limiting cylinder; 460, buffer plate; 470, clamping block; 480, positioning plate;

[0048] 500, slide plate; 501, placement cavity; 510, connecting plate; 520, slide rod; 521, first spring;

[0049] 600, circular plate; 601, round rod; 610, second spring;

[0050] 700, second guide rod; 710, second electric push rod; 720, adjustment plate; 730, movable seat; 740, second threaded rod;

[0051] 801, groove; 810, bump. DETAILED DESCRIPTION

[0052] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments. It should be understood that the embodiments are merely for explaining the present invention and are not intended to limit the present invention.

[0053] The following is combined with Figures 1-9 This embodiment is described in further detail.

[0054] like Figure 1 、 Figure 4 、 Figure 7 and Figure 8 As shown, a PCB circuit detection device in this embodiment includes a detection platform 100, a slide groove 101 is formed on the upper end surface of the detection platform 100, a movable placement box 110 is arranged in the slide groove 101, and a moving component is arranged in the slide groove 101, and the moving component is used to drive the placement box 110 to move;

[0055] A placement cavity 501 is provided in the placement box 110, and a limiting assembly is provided in the placement cavity 501. The movement of the placement box 110 is used to drive the limiting assembly to limit the PCB board on the upper end surface of the placement box 110.

[0056] Above the inspection platform 100, there are two relative lifting plates 120, and between the two lifting plates 120, there is a movable plate 130. The movable plate 130 is provided with an inspection component for performing appearance inspection on the PCB board.

[0057] The upper end surface of the testing platform 100 is provided with a lifting assembly, which is used to adjust the height of the movable plate 130;

[0058] The movable plate 130 is further provided with an adjusting component, which is used to adjust the position of the movable plate 130 .

[0059] In this embodiment, the PCB board to be inspected is placed on the upper end surface of the placement box 110, and then the placement box 110 is driven to move by the moving assembly. When the placement box 110 moves, the placement box 110 drives the limiting assembly to limit the PCB board on the placement box 110 through the limiting assembly. When the placement box 110 moves to the bottom of the movable plate 130, the moving assembly stops driving the placement box 110. At this time, the circuit on the PCB board is visually inspected by the detection assembly on the movable plate 130. When the detection assembly completes the inspection of the PCB board, the moving assembly resets the position after driving the placement box 110 to move. When the placement box 110 is reset, the limiting assembly releases the limit on the PCB board, making it convenient for the staff to remove the inspected PCB board from the placement box 110.

[0060] When the placement box 110 moves, the limiting assembly can push the PCB to the middle of the placement box 110 and limit it, thereby preventing the PCB on the placement box 110 from being located at the edge of the placement box 110 when the placement box 110 moves directly under the movable plate 130, thereby affecting the appearance inspection of the PCB by the inspection assembly;

[0061] The inspection component includes an industrial camera 131 fixedly mounted on a movable plate 130. The industrial camera 131 uses an Eco Photonics 16K color TDI line scan camera. When the PCB board on the placement box 110 is directly below the industrial camera 131, the industrial camera 131 performs an appearance inspection scan of the circuits on the PCB board, thereby detecting whether the soldering position of the circuits on the PCB board is correct. Compared with existing PCB board circuit inspection equipment, in actual use, the industrial camera 131 replaces manual appearance inspection of the PCB board, thereby greatly reducing the possibility of missed inspections of the PCB board and improving the inspection effect of the PCB board.

[0062] The workbench is also equipped with a display screen 170, which can display the test results of the PCB board so that the staff can know whether there is any problem with the tested PCB board;

[0063] The height of the movable plate 130 is adjusted by the lifting assembly, and thus the detection range of the industrial camera 131 can be adjusted, so that the detection range of the industrial camera 131 is adapted to PCB boards of different sizes, thereby enabling the industrial camera 131 to perform appearance inspection on PCB boards of different sizes.

[0064] Among them, a positioning plate 480 is fixedly installed on the upper end surface of the placement box 110 and near one side. When the PCB board is placed on the placement box 110, one side wall of the PCB board needs to be tightly pressed against the side wall of the positioning plate 480;

[0065] In actual use, the size of the PCB board may be smaller or larger than the upper end surface of the placement box 110. When one side wall of the PCB board is pressed against the side wall of the positioning plate 480, the limiting component limits the PCB board to the middle of the placement box 110. At the same time, the placement box 110 is located directly below the movable plate 130. At this time, the center of the PCB board may not be located directly below the industrial camera 131, and there is a large deviation between the center of the PCB board and the industrial camera 131. The large deviation will affect the detection effect of the industrial camera 131 on the PCB board. At this time, the position of the movable plate 130 is fine-tuned by adjusting the component so that the industrial camera 131 can be located directly above the PCB board, thereby avoiding a large deviation between the industrial camera 131 and the PCB board, which affects the detection effect of the industrial camera 131 on the PCB board.

[0066] like Figure 1 、 Figure 2 and Figure 3 As shown, in this embodiment, the moving assembly includes a first electric push rod 140 disposed in the slide groove 101 , and the first electric push rod 140 is used to drive the placement box 110 to move back and forth along the slide groove 101 .

[0067] In this embodiment, the chute 101 is arranged along the length direction of the inspection table 100, and a plurality of supports 141 are fixedly installed on the bottom side wall of the chute 101. The first electric push rod 140 is fixedly installed on the plurality of supports 141. The output shaft of the first electric push rod 140 is fixedly connected to the side wall of the placement box 110 facing the first electric push rod 140, so that the first electric push rod 140 can drive the placement box 110 to move along the chute 101. When the first electric push rod 140 pushes the placement box 110 away from the movable plate 130, the position of the placement box 110 after moving is reset.

[0068] The first electric push rod 140 is a DTX electric push rod;

[0069] In actual use, the bottom wall of the slide 101 is provided with a relative card slot 311 with a T-shaped cross section, and the lower end surface of the placement box 110 is fixedly installed with a card block 470 that is opposite and inserted into the corresponding card slot 311. The cross section of the card block 470 is T-shaped. Through the cooperation of the card block 470 and the card slot 311, the placement box 110 is moved and installed in the slide 101, and at the same time, the movement of the placement box 110 is made more stable.

[0070] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, in this embodiment, the upper end surface of the testing platform 100 is provided with a relative fixing plate 150, and the upper end surface of each fixing plate 150 is provided with a fixing groove 301, and a first inclined surface is provided on one side wall of the fixing groove 301. The upper end surface of the placement box 110 is provided with a limiting groove 401 that communicates with the placement cavity 501;

[0071] The limiting assembly includes slides 500 that are relatively arranged in the placement cavity 501 and move. The side walls of the two slides 500 that are away from each other are provided with a slider 410 with one end extending out of the placement box 110. A second inclined surface that cooperates with the first inclined surface is provided on one side wall of the slider 410. The upper end faces of the slides 500 are provided with connecting plates 510 with the upper ends extending out of the limiting groove 401. The protruding ends of the connecting plates 510 are provided with limiting plates 420. The side walls where the two limiting plates 420 are close to each other are provided with movable abutment plates 430. The movement of the placement box 110 is used to drive the two limiting plates 420 to approach each other, so that the two abutment plates 430 limit the PCB board on the upper end face of the placement box 110.

[0072] In this embodiment, the fixing plate 150 is fixedly mounted on the upper end surface of the detection platform 100, the limiting groove 401 and the slide groove 101 are arranged perpendicular to each other, the slider 410 is fixedly mounted on the side wall of the slide plate 500, the lower end of the connecting plate 510 is fixedly mounted on the upper end surface of the slide plate 500, and the limiting plate 420 is fixedly mounted on the upper end surface of the connecting plate 510. When the placement box 110 moves, the placement box 110 can drive the slider 410 to slide out of the fixing groove 301 through the slide plate 500. At this time, the first inclined surface in the fixing groove 301 will contact the slider. The second inclined surface on 410 is squeezed, so that the two sliders 410 begin to approach each other. When one end of the two sliders 410 moves against the side wall of the fixing plate 150, the two sliders 410 approach each other to the minimum distance. At this time, the slide plate 500 can drive the limiting plate 420 to move closer to each other through the connecting plate 510. The two limiting plates 420 drive the two abutting plates 430 to approach each other to the minimum distance, so that the two abutting plates 430 push the PCB board on the upper end surface of the placement box 110 to the middle and limit the PCB board.

[0073] The first spring 521 is used to push the two slides 500 away from each other. When the two slides 500 are close to each other, the two slides 500 squeeze the first spring 521, so that the first spring 521 is in a compressed state. When the placement box 110 is reset, the slider 410 on the placement box 110 moves to the fixed groove 301, the first spring 521 is released from compression, and the first spring 521 pushes the two slides 500 away from each other. The slide 500 drives the two limit plates 420 to move away from each other through the connecting plate 510. The limit plates 420 drive the corresponding abutment plates 430 to move away from each other, thereby releasing the limit of the two abutment plates 430 on the PCB board.

[0074] In actual use, when the slider 410 on the placement box 110 moves to the fixed groove 301, the first spring 521 pushes the slider 410 on the slide plate 500 to snap into the corresponding fixed groove 301. At this time, the placement box 110 cannot move away from the movable plate 130, so that the placement box 110 can be reset to the same position each time.

[0075] like Figure 4 、 Figure 5 and Figure 6 As shown, in this embodiment, a rotatable first threaded rod 440 is provided on the side walls of the two abutment plates 430 that are away from each other, and one end of the first threaded rod 440 is threadedly penetrated by the corresponding limiting plate 420 .

[0076] When the two limiting plates 420 are brought closer to each other, the limiting plates 420 can drive the corresponding limiting plates 430 to move via the first threaded rod 440, thereby achieving the two limiting plates 430 limiting the PCB board. When the two limiting plates 430 need to limit PCB boards of different sizes, the two limiting plates 420 can be brought closer to each other by adjusting the distance between the limiting plates 430 and the corresponding limiting plates 420. When the distance between the limiting plates 430 and the limiting plates 420 needs to be adjusted, the first threaded rod 440 can drive the limiting plates 430 to limit PCB boards of different sizes by rotating the first threaded rod 440.

[0077] Among them, when the two abutment plates 430 approach each other to limit the PCB board, the two abutment plates 430 press against the side wall of the PCB board, which may cause damage to the side wall of the PCB board. Relative limiting cylinders 450 are fixed on the side walls of the two abutment plates 430 that are away from each other. The limiting cylinders 450 are each provided with a cavity, and a movable circular plate 600 is provided in the cavity. A round rod 601 is fixedly installed on the side wall of the circular plate 600 facing the abutment plate 430. One end of the round rod 601 penetrates the corresponding abutment plate 430, and a buffer plate 46 is fixedly installed between the through ends of the two round rods 601. 0, a second spring 610 is further provided in the cavity, and the second spring 610 is used to push the circular plate 600 to move toward the abutting plate 430. When the two abutting plates 430 approach each other, the two abutting plates 430 abut against the side wall of the PCB board through the buffer plate 460. When the two buffer plates 460 abut against the side wall of the PCB board, the two abutting plates 430 may continue to approach each other. At this time, the two buffer plates 460 drive the circular plate 600 to squeeze the second spring 610 through the round rod 601, thereby reducing the squeezing force on the PCB board, that is, reducing the damage to the side wall of the PCB board.

[0078] like Figure 1 、 Figure 7 and Figure 8 As shown, in this embodiment, the upper end surface of the testing platform 100 is provided with a plurality of first guide rods 160, and the lower end surface of the lifting plate 120 is provided with a plurality of second guide rods 700 whose lower ends are inserted into the corresponding first guide rods 160;

[0079] The lifting assembly includes a bending plate 151 with an L-shaped cross section and provided on the fixed plate 150. The upper end surface of the bending plate 151 is provided with a second electric push rod 710, which is used to drive the corresponding lifting plate 120 to adjust the height.

[0080] In this embodiment, the first guide rod 160 is fixedly mounted on the upper end surface of the inspection platform 100, and the second guide rod 700 is fixedly mounted on the lower end surface of the lifting plate 120. The installation of the lifting plate 120 above the inspection platform 100 is achieved by inserting the second guide rod 700 into the corresponding first guide rod 160. The lower end of the bending plate 151 is fixedly mounted on the fixed plate 150, and the second electric push rod 710 is fixedly mounted on the bending plate 151. The output shaft of the second electric push rod 710 is fixedly connected to the lifting plate 120. The two second electric push rods 710 synchronously drive the two lifting plates 120 to move up and down, so that the lifting and lowering of the two lifting plates 120 can drive the moving plate 130 to move up and down, thereby realizing the height adjustment of the industrial camera 131 on the lifting plate 120;

[0081] The second electric push rod 710 is a FY DC electric push rod;

[0082] In actual use, the lower end surface of the lifting plate 120 is provided with a groove 801 with a T-shaped cross-section, and the upper end surface of the movable plate 130 is fixedly installed with a relative protrusion 810 that is inserted into the corresponding groove 801. The protrusion 810 is T-shaped in cross-section. Through the cooperation of the protrusion 810 and the groove 801, the movable plate 130 is moved and installed between the two lifting plates 120. At the same time, the synchronous lifting of the two lifting plates 120 can drive the movable plate 130 to be lifted and lowered.

[0083] like Figure 1 、 Figure 7 and Figure 8 As shown, in this embodiment, an adjustment plate 720 is provided between the two lifting plates 120;

[0084] The adjustment component includes a moving seat 730 arranged on the upper end surface of the moving plate 130. A second rotatable threaded rod 740 is provided on the side wall of the moving seat 730 facing the adjustment plate 720. One end of the second threaded rod 740 is threaded through the adjustment plate 720. The second threaded rod 740 rotates to drive the moving plate 130 to move, thereby adjusting the position of the moving plate 130.

[0085] In this embodiment, the two ends of the adjustment plate 720 are respectively fixedly mounted on the lifting plate 120, the movable seat 730 is fixedly mounted on the upper end surface of the movable plate 130, and the push rod bearing at one end of the second threaded rod 740 is mounted on the movable seat 730. When the second threaded rod 740 rotates, the second threaded rod 740 cooperates with the adjustment plate 720, so that the second threaded rod 740 can drive the movable plate 130 to move between the two movable plates 130, thereby realizing the adjustment of the position of the movable plate 130, that is, the adjustment of the position of the industrial camera 131.

[0086] like Figures 1-9 As shown, this embodiment also provides a PCB board circuit detection system, which adopts one of the above-mentioned PCB board circuit detection devices, and specifically includes the following steps:

[0087] S1. First, place the PCB to be inspected on the upper end surface of the placement box 110 and press it against the positioning plate 480. Then, the placement box 110 is driven to move by the first electric push rod 140. When the placement box 110 moves, the placement box 110 drives the two buffer plates 460 to move closer to each other. The two buffer plates 460 press the PCB on the placement box 110 tightly, thereby limiting the upper end surface of the PCB placement box 110.

[0088] S2. When the placement box 110 moves to the bottom of the movable plate 130, the first electric push rod 140 stops driving the placement box 110. At this time, the industrial camera 131 on the movable plate 130 performs appearance inspection on the PCB board on the placement box 110. After the inspection component completes the appearance inspection of the PCB board, the first electric push rod 140 drives the placement box 110 to move to the initial position. At the same time, the two buffer plates 460 move closer to each other and farther away from each other, so that the two buffer plates 460 release the limit on the PCB board. Then, the inspected PCB board can be removed from the placement box 110.

[0089] S3. When the industrial camera 131 performs appearance inspection on PCBs of different sizes, the second electric push rod 710 drives the lifting plate 120 to move up and down. The lifting plate 120 then drives the movable plate 130 to move up and down, thereby adjusting the height of the movable plate 130. This allows the detection range of the industrial camera 131 on the movable plate 130 to be adjusted according to the size of the PCBs.

[0090] S4. When the industrial camera 131 performs appearance inspection on PCB boards of different sizes, it is necessary to rotate the second threaded rod 740 so that the second threaded rod 740 drives the movable plate 130 to move between the two lifting plates 120 to adjust the position of the industrial camera 131 so that the industrial camera 131 is located directly above the PCB board, thereby ensuring the inspection effect of the industrial camera 131 on the PCB board;

[0091] S5. When the industrial camera 131 is an AI smart camera and is connected to an intelligent control system, the industrial camera 131 automatically identifies and finds different problems on the surface of the PCB each time it inspects the PCB. The system then sends the feedback to the system through a display so that the staff can determine whether the product is good or not.

[0092] S6. After manually determining good or defective products in step S5, the intelligent control system will automatically learn and determine which are good and defective products.

[0093] It should be noted that the system will compare data based on the previously tested circuit board. If it finds that there are a few more points or a few fewer components on the circuit board being tested, it will automatically determine it, and then feedback the information through the screen, requiring manual confirmation again. As more and more data passes through the system, the system will automatically determine whether it is a good product.

[0094] In short, the above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the patent of the present invention.

Claims

1. A PCB circuit detection device, comprising a detection table (100), characterized in that: The upper end surface of the detection table (100) is provided with a chute (101), a movable placement box (110) is provided in the chute (101), and a moving component is provided in the chute (101), and the moving component is used to drive the placement box (110) to move; A placement cavity (501) is provided in the placement box (110), and a limiting component is provided in the placement cavity (501). The placement box (110) moves to drive the limiting component to limit the PCB board on the upper end surface of the placement box (110); A pair of opposing lifting plates (120) are provided above the inspection platform (100), a movable plate (130) is provided between the two lifting plates (120), and an inspection component is provided on the movable plate (130), the inspection component being used to perform appearance inspection on the PCB board; The upper end surface of the detection platform (100) is provided with a lifting assembly, and the lifting assembly is used to adjust the height of the movable plate (130); The movable plate (130) is further provided with an adjustment component, and the adjustment component is used to adjust the position of the movable plate (130).

2. A PCB circuit detection device according to claim 1, characterized in that: The moving assembly comprises a first electric push rod (140) arranged in the slide groove (101), and the first electric push rod (140) is used for driving the placement box (110) to move back and forth along the slide groove (101).

3. A PCB circuit detection device according to claim 2, characterized in that: The upper end surface of the detection table (100) is provided with a relative fixing plate (150), the upper end surface of each fixing plate (150) is provided with a fixing groove (12301), a first inclined surface is provided on a side wall of the fixing groove (12301), and the upper end surface of the placement box (110) is provided with a limiting groove (401) connected to the placement cavity (501); The limiting assembly comprises slide plates (500) relatively arranged in the placement cavity (501) and movable. The side walls of the two slide plates (500) that are away from each other are each provided with a slider (410) whose one end extends out of the placement box (110). A second inclined surface that cooperates with the first inclined surface is provided on one side wall of the slider (410). The upper end surface of the slide plates (500) is each provided with a connecting plate (510) whose upper end extends out of the limiting groove (401). The protruding end of the connecting plate (510) is each provided with a limiting plate (420). The side walls of the two limiting plates (420) that are close to each other are each provided with a movable abutment plate (430). The placement box (110) moves to drive the two limiting plates (420) to approach each other, so that the two abutment plates (430) limit the PCB board on the upper end surface of the placement box (110).

4. A PCB circuit detection device according to claim 3, characterized in that: The placement cavity (501) is provided with opposing sliding rods (520) for the two slides (500) to be sleeved thereon. The sliding rods (520) are sleeved with first springs (521) for pushing the two slides (500) away from each other.

5. A PCB circuit detection device according to claim 3, characterized in that: A first rotatable threaded rod (440) is provided on the side walls of the two abutment plates (430) that are away from each other. One end of the first threaded rod (440) is threadedly penetrated through the corresponding limiting plate (420).

6. A PCB circuit detection device according to claim 5, characterized in that: Relative limiting cylinders (450) are provided on the side walls of the two abutment plates (430) that are away from each other. A cavity is provided in each limiting cylinder (450). A movable circular plate (600) is provided in each cavity. A round rod (601) is provided on the side wall of the circular plate (600) facing the abutment plate (430). One end of the round rod (601) passes through the corresponding abutment plate (430). A buffer plate (460) is provided between the through ends of the two round rods (601). A second spring (610) is also provided in the cavity. The second spring (610) is used to push the circular plate (600) toward the abutment plate (430).

7. A PCB circuit detection device according to claim 3, characterized in that: The upper end surface of the detection platform (100) is provided with a plurality of first guide rods (160), and the lower end surface of the lifting plate (120) is provided with a plurality of second guide rods (700) whose lower ends are inserted into the corresponding first guide rods (160); The lifting assembly comprises a bending plate (151) with an L-shaped cross section and arranged on a fixed plate (150). The upper end surface of the bending plate (151) is provided with a second electric push rod (710). The second electric push rod (710) is used to drive the corresponding lifting plate (120) to adjust the height.

8. A PCB circuit detection device according to claim 6, characterized in that: An adjustment plate (720) is provided between the two lifting plates (120); The adjustment component includes a moving seat (730) arranged on the upper end surface of the moving plate (130); a second threaded rod (740) is provided on the side wall of the moving seat (730) facing the adjustment plate (720); one end of the second threaded rod (740) is threadedly penetrated through the adjustment plate (720); the second threaded rod (740) rotates to drive the moving plate (130) to move, thereby adjusting the position of the moving plate (130).

9. A PCB circuit detection device according to claim 3, characterized in that: The bottom wall of the slide (101) is provided with a corresponding card slot (311) with a T-shaped cross section, and the lower end surface of the placement box (110) is provided with a card block (470) that is opposite and snaps into the corresponding card slot (311), and the card block (470) is arranged with a T-shaped cross section.

10. A PCB circuit detection system, characterized by: A PCB circuit detection device according to any one of claims 1 to 9 is used, which specifically comprises the following steps: S1. First, a PCB to be inspected is placed on the upper end surface of a placement box (110). Then, the placement box (110) is driven to move by a moving component. When the placement box (110) moves, the placement box (110) drives a limiting component to limit the position of the PCB on the placement box (110) by the limiting component, thereby preventing the PCB from being displaced on the placement box (110). S2, when the placement box (110) moves to the position below the movable plate (130), the movable component stops driving the placement box (110), and at this time, the appearance inspection of the PCB board on the placement box (110) is performed by the detection component on the movable plate (130), and when the detection component completes the appearance inspection of the PCB board, the movable component drives the placement box (110) to move to the initial position, and at the same time, the limit component releases the limit on the PCB board, and then the PCB board after the inspection is removed from the placement box (110); S3, when the detection component performs appearance inspection on PCB boards of different sizes, the height of the movable plate (130) is adjusted by the lifting component so that the detection range of the detection component can be adjusted according to the size of the PCB board; S4. When the detection component performs appearance inspection on PCB boards of different sizes, it is also necessary to adjust the position of the movable plate (130) through the adjustment component so that the detection component on the movable plate (130) is located directly above the PCB board, thereby ensuring the detection effect of the detection component on the PCB board; S5. When the industrial camera (131) is an AI smart camera and is connected to an intelligent control system, the industrial camera (131) automatically identifies and finds different problems on the surface of the PCB board each time it detects the PCB board, and then feeds back to the system through a display flash so that the staff can judge whether the product is good or not. S6. After manually determining good or defective products in step S5, the intelligent control system will automatically learn and determine which are good and defective products.

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