Circuit board detection device and method

Abstract

The invention discloses a circuit board detection device and method, and belongs to the field of circuit board detection. The circuit board detection device comprises a base and a detection probe, the detection probe is fixed at the top of the base, the circuit board detection device further comprises a rotating disc, the rotating disc is rotatably connected to the top of the base, three groups of clamping seats are arranged on the rotating disc at equal intervals, clamping parts for fixing a circuit board are arranged in the clamping seats, and the clamping parts are used for clamping the circuit board. A driving part for driving the rotating disc to rotate is arranged in the base; according to the invention, through the repulsion effect of a third magnetic plate and a second magnetic plate in cooperation with the arrangement of a vibration plate and a second spring, a vibration effect is applied to a circuit board in detection, so that a more real use scene is simulated, and the detection effect is effectively improved; and in cooperation with the reciprocating motion of the vibration plate, the suction effect can be continuously generated in the air suction pipe, so that dust, impurities and the like are prevented from being attached to the detection end of the detection probe, the definition of the detection probe is ensured, and the accuracy of a detection result is improved.

Description

Technical Field

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

[0002] Circuit boards, or printed circuit boards, are an integral part of electronic devices. They not only provide mechanical support for electronic components, but also enable electrical connections between components through conductive paths. After the circuit boards are produced, they are generally inspected for surface defects using high-resolution cameras to ensure quality.

[0003] At present, the existing detection devices generally only detect the surface defects of the circuit board through a high-resolution camera in a static state. However, many circuit boards will move dynamically during use and will be subject to additional effects such as vibration. At this time, only static detection cannot meet the needs of circuit board quality detection, which reduces the detection effect; and during the detection, dust and impurities may adhere to the surface of the circuit board and the camera, thereby reducing the detection accuracy. Therefore, a circuit board detection device and method are proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the demand for circuit board quality inspection cannot be met by static inspection alone in the prior art, which reduces the inspection effect; and the dust and impurities attached to the surface of the circuit board and the camera will cause the inspection accuracy to be reduced, and a circuit board inspection device and method are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A circuit board detection device comprises a base and a detection probe, wherein the detection probe is fixed on the top of the base, and further comprises: a rotating disk, wherein the rotating disk is rotatably connected to the top of the base, wherein three groups of clamping seats are arranged at equal intervals on the rotating disk, wherein the clamping seats are provided with clamping parts for fixing circuit boards, and wherein the base is provided with a driving part for driving the rotating disk to rotate; a cleaning component, wherein the cleaning component is installed above the rotating disk, and the cleaning component is used to clean the detection surface of the circuit board in the clamping seat; and a vibration component, wherein the vibration component is arranged at the bottom of the rotating disk, and the vibration component is used to apply vibration to the circuit board during detection.

[0007] In order to improve the stability of the circuit board during detection, preferably, the clamping part includes an air guide ring tube, which is fixed on the clamping seat, and the inner wall of the clamping seat is provided with air filling grooves all around, and the air guide ring tube is respectively connected with the inner cavity of each group of air filling grooves, and a clamping block is slidably connected in the air filling groove, and the outer end of the clamping block is made of rubber, and an inflation part for introducing gas into the air filling groove is provided on the rotating disk.

[0008] Furthermore, the inflation part includes an inflation cylinder, which is fixedly connected to the rotating disk, and the number of the inflation cylinders matches the clamping seat, the upper part of the inner cavity of the inflation cylinder is connected to the inner cavity of the air guide ring tube, a piston block is slidably connected in the inflation cylinder, a first spring is fixedly connected between the top of the piston block and the top of the inflation cylinder, a telescopic sleeve is fixedly connected to the side of the bottom of the inner cavity of the base close to the detection probe, a first magnetic plate is fixedly connected to the top of the telescopic end of the telescopic sleeve, the first magnetic plate and the piston block are magnetically repelled, and the first magnetic plate is set in a one-third arc shape.

[0009] In order to improve the detection efficiency, preferably, the driving part includes an annular ring gear, which is fixed to the bottom of the rotating disk, and a first motor is fixedly connected to the bottom of the inner cavity of the base, and an output shaft of the first motor is fixedly connected to a driving gear, and the driving gear is meshed with the annular ring gear, and the number of teeth of the annular ring gear is three times that of the driving gear.

[0010] In order to improve the detection accuracy, preferably, the cleaning assembly includes an air guide box with an air outlet at the bottom, an air guide duct is fixedly connected to the side wall of the air guide box, an air guide seat is fixedly connected inside the base, the air guide duct passes through the central empty slot of the rotating disk and is fixedly connected to the top of the air guide seat, and the two ends of the air guide duct are respectively connected to the inner cavity of the air guide box and the air guide seat, an air guide blade is rotatably connected inside the air guide seat, a driven gear is fixedly connected to the rotating bottom end of the air guide blade, the driven gear is meshed with a driving gear, and the number of teeth of the driving gear is greater than the number of teeth of the driven gear.

[0011] In order to improve the detection effect, preferably, the vibration assembly includes three groups of vibration bins, the vibration bins are fixed at the bottom of the rotating disk, and each group of the vibration bins is aligned with the clamping seat, a vibration plate is slidably connected in the vibration bin, and a second spring is fixedly connected between the two sides of the bottom of the vibration plate and the bottom of the vibration bin, and a plurality of guide rods are fixedly connected to the bottom of the vibration plate, and the bottom end of the guide rod passes through the bottom of the vibration bin and is fixedly connected to a second magnetic plate, a second motor is fixedly connected to the inner wall of the base, and the output shaft end of the second motor is fixedly connected to a mounting disk, and third magnetic plates are fixedly connected to both sides of the mounting disk, and the third magnetic plate and the second magnetic plate magnetically repel each other.

[0012] In order to improve the clarity of the detection probe, preferably, a suction pipe is fixedly connected to the top of the base, and the top of the suction pipe is fixed and connected to an adsorption box, and a plurality of adsorption holes are provided on the side wall of the adsorption box, and the adsorption holes are facing the detection end of the detection probe, and an arc box is fixedly connected to the side wall of the vibration bin, and the arc box is communicated with the inner cavity of the vibration bin, and a first through groove is provided on the side wall of the arc box, and a sealing ring is fixedly connected to the inner wall of the base, and the arc box and the sealing ring slide in fit, and a second through groove is provided on the side wall of the sealing ring located below the detection probe, and the bottom end of the suction pipe is communicated with the inner cavity of the sealing ring, and a one-way valve is provided in the suction pipe.

[0013] In order to improve the clamping effect, preferably, an inflation tube is fixed and connected to the side wall of the vibration bin, the other end of the inflation tube is connected to the bottom of the inner cavity of the telescopic sleeve, and a one-way valve is arranged in the inflation tube, an exhaust pipe is fixed and connected to the bottom side wall of the telescopic sleeve, a sealing block is fixedly connected to the bottom of the inner cavity of the base, and the top end of the exhaust pipe slides in fit with the bottom of the sealing block.

[0014] In order to facilitate loading and unloading, preferably, mechanical arms are provided on both sides of the base, and two groups of the mechanical arms and detection probes are equidistant and distributed in a ring on the base.

[0015] A circuit board detection method, the steps are as follows:

[0016] Step 1: Transfer the circuit board to be tested into the card holder;

[0017] Step 2: Clean the circuit board detection surface in the card connector;

[0018] Step 3: Move the circuit board under the detection probe for detection;

[0019] Step 4: Apply vibration to the circuit board under test to complete further testing.

[0020] Compared with the prior art, the present invention provides a circuit board detection device and method, which have the following beneficial effects:

[0021] 1. The circuit board detection device applies vibration to the circuit board under detection through the repulsive effect of the third magnetic plate and the second magnetic plate, in conjunction with the setting of the vibration plate and the second spring, so as to simulate a more realistic usage scenario and effectively improve the detection effect; and in conjunction with the reciprocating movement of the vibration plate, it can also continuously generate suction in the suction pipe, thereby preventing dust and impurities from adhering to the detection end of the detection probe, ensuring the clarity of the detection probe and improving the accuracy of the detection result.

[0022] 2. The circuit board detection device can stably clamp the circuit board moved into the detection area through the repulsive effect of the first magnetic plate and the piston block, thereby improving the stability of the circuit board during the detection process; and in conjunction with the thrust generated by the vibration plate during the reciprocating movement, it can inflate the telescopic sleeve to shorten the distance between the first magnetic plate and the piston block, thereby increasing the repulsive effect between the two, thereby increasing the air pressure filled into each group of inflation grooves, and further improving the clamping effect of the circuit board.

[0023] 3. The circuit board detection device realizes intermittent conversion of three stations through the cooperation of the annular gear ring and the driving gear, which effectively improves the detection efficiency; and cooperates with the meshing transmission of the driven gear so that the air guide blades push the air flow to the circuit board passing under the air guide box, thereby cleaning the detection surface of the circuit board, improving the cleanliness of the detection surface of the circuit board, and thus improving the subsequent detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a circuit board detection device proposed by the present invention;

[0025] Figure 2 A schematic diagram of a side view and half-section structure of a circuit board detection device proposed by the present invention;

[0026] Figure 3 A circuit board detection device proposed by the present invention Figure 2 A schematic diagram of the enlarged structure of the middle A area;

[0027] Figure 4 A circuit board detection device proposed by the present invention Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0028] Figure 5 A circuit board detection device proposed by the present invention Figure 2 Schematic diagram of the enlarged structure of the middle C area;

[0029] Figure 6 A schematic diagram of the transverse cross-sectional structure of a circuit board detection device proposed by the present invention;

[0030] Figure 7 A schematic diagram of the internal structure of an air guide seat of a circuit board detection device proposed by the present invention;

[0031] Figure 8 This is a schematic diagram of the annular gear ring connection structure of a circuit board detection device proposed by the present invention.

[0032] In the figure: 1, base; 2, detection probe; 3, rotating disk; 4, clamping seat; 5, air guide ring tube; 51, air filling groove; 52, clamping block; 53, air filling cylinder; 531, piston block; 532, first spring; 54, telescopic sleeve; 541, first magnetic plate; 6, annular gear ring; 61, first motor; 62, driving gear; 7, air guide box; 71, air guide tube; 72, air guide seat; 73, air guide blade; 731 , driven gear; 8, vibration bin; 81, vibration plate; 811, second spring; 82, guide rod; 83, second magnetic plate; 84, second motor; 85, mounting plate; 851, third magnetic plate; 9, suction pipe; 91, adsorption box; 911, adsorption hole; 92, arc box; 921, first through groove; 93, sealing ring; 931, second through groove; 94, inflation pipe; 941, exhaust pipe; 95, blocking block. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Embodiment 1:

[0036] Reference Figure 1-Figure 8 A circuit board detection device includes a base 1 and a detection probe 2, wherein the detection probe 2 is fixed on the top of the base 1, and also includes: a rotating disk 3, which is rotatably connected to the top of the base 1, wherein three groups of clamping seats 4 are arranged at equal intervals on the rotating disk 3, and a clamping portion for fixing the circuit board is arranged in the clamping seat 4, and a driving portion for driving the rotating disk 3 to rotate is arranged in the base 1; a cleaning component, which is installed above the rotating disk 3, and the cleaning component is used to clean the detection surface of the circuit board in the clamping seat 4; a vibration component, which is arranged at the bottom of the rotating disk 3, and the vibration component is used to apply vibration to the circuit board during detection.

[0037] Reference Figure 1-Figure 6The clamping part includes an air guide ring tube 5, which is fixed on the clamping seat 4. The inner wall of the clamping seat 4 is provided with air filling grooves 51. The air guide ring tube 5 is communicated with the inner cavity of each group of air filling grooves 51 respectively. A clamping block 52 is slidably connected in the air filling groove 51, and the outer end of the clamping block 52 is made of rubber. The rotating disk 3 is provided with an air filling part for introducing gas into the air filling groove 51; the air filling part includes an air filling cylinder 53, which is fixedly connected to the rotating disk 3, and the number of the air filling cylinders 53 matches the clamping seat 4. The upper part of the inner cavity of the inflation cylinder 53 is connected with the inner cavity of the air guide ring tube 5, and a piston block 531 is slidably connected in the inflation cylinder 53. A first spring 532 is fixedly connected between the top of the piston block 531 and the top of the inflation cylinder 53. A telescopic sleeve 54 is fixedly connected to the side of the bottom of the inner cavity of the base 1 close to the detection probe 2, and a first magnetic plate 541 is fixedly connected to the top of the telescopic end of the telescopic sleeve 54. The first magnetic plate 541 and the piston block 531 magnetically repel each other, and the first magnetic plate 541 is set in a one-third arc shape.

[0038] It should be noted that the first magnetic plate 541 is arranged in the base 1 below the detection probe 2 and is arranged in a one-third arc shape, so that a clamping effect can be achieved in the clamping seat 4 that moves toward the bottom of the detection probe 2. In other areas, the circuit board will not be clamped, so that unloading after detection can be carried out, thereby improving the convenience of detection.

[0039] Through the arrangement of the above-mentioned structure, when the clamping seat 4 moves toward the bottom of the detection probe 2, the corresponding inflation cylinder 53 will also move to the top of the first magnetic plate 541. By utilizing the repulsive effect between the first magnetic plate 541 and the piston block 531, the piston block 531 will move in the direction of compressing the first spring 532, thereby pushing the gas in the inflation cylinder 53 along the air guide ring tube 5 into each group of inflation grooves 51, so that the clamping block 52 is pushed outward, thereby clamping and fixing the circuit board, and improving the stability of the circuit board during the detection process.

[0040] Reference Figure 3 , Figure 7 and Figure 8 , wherein the driving part includes an annular gear ring 6, which is fixed at the bottom of the rotating disk 3, a first motor 61 is fixedly connected to the bottom of the inner cavity of the base 1, and a driving gear 62 is fixedly connected to the output shaft of the first motor 61, and the driving gear 62 is meshed with the annular gear ring 6, and the number of teeth of the annular gear ring 6 is three times that of the driving gear 62; mechanical arms are arranged on both sides of the base 1, and two sets of mechanical arms and detection probes 2 are equidistant and distributed in a ring on the base 1.

[0041] It should be noted that since the number of teeth on the annular gear ring 6 is three times that of the driving gear 62, when the driving gear 62 rotates one circle, the rotating disk 3 rotates exactly one-third of a circle, and there are exactly three groups of workstations. Therefore, every time the driving gear 62 rotates one circle, the workstations will switch once, thereby realizing continuous switching of the workstations.

[0042] Through the arrangement of the above structure, the first motor 61 is turned on to drive the driving gear 62 to rotate one circle. By utilizing the meshing relationship between the driving gear 62 and the annular gear ring 6, the rotating disk 3 will also rotate exactly one-third of a circle at this time, thereby realizing intermittent switching of different workstations and effectively improving the detection efficiency.

[0043] Reference Figure 1-Figure 3 The cleaning assembly includes an air guide box 7 with an air outlet at the bottom, an air guide pipe 71 is fixedly connected to the side wall of the air guide box 7, an air guide seat 72 is fixedly connected inside the base 1, the air guide pipe 71 passes through the central empty slot of the rotating disk 3 and is fixedly connected to the top of the air guide seat 72, and the two ends of the air guide pipe 71 are respectively connected to the inner cavity of the air guide box 7 and the air guide seat 72, an air guide blade 73 is rotatably connected inside the air guide seat 72, and a driven gear 731 is fixedly connected to the rotating bottom end of the air guide blade 73, the driven gear 731 is meshed with the driving gear 62, and the number of teeth of the driving gear 62 is greater than the number of teeth of the driven gear 731.

[0044] Through the arrangement of the above-mentioned structure, every time the driving gear 62 rotates one circle, it will also drive the driven gear 731 to rotate several circles, so that the air guide blade 73 rotates in the air guide seat 72, thereby pushing the air flow along the air guide seat 72 and the air guide pipe 71 into the air guide box 7, and finally blowing from the air outlet of the air guide box 7 to the circuit board that rotates and passes under the air guide box 7, thereby cleaning the detection surface of the circuit board, improving the cleanliness of the detection surface of the circuit board, and further improving the subsequent detection accuracy.

[0045] Reference Figure 2 , Figure 4 The vibration assembly includes three groups of vibration bins 8, which are fixed at the bottom of the rotating disk 3, and each group of vibration bins 8 is aligned with the clamping seat 4. A vibration plate 81 is slidably connected in the vibration bin 8, and a second spring 811 is fixedly connected between the bottom sides of the vibration plate 81 and the bottom of the vibration bin 8. A plurality of groups of guide rods 82 are fixedly connected to the bottom of the vibration plate 81, and the bottom ends of the guide rods 82 pass through the bottom of the vibration bin 8 and are fixedly connected to the second magnetic plate 83. A second motor 84 is fixedly connected to the inner wall of the base 1, and a mounting disk 85 is fixedly connected to the output shaft end of the second motor 84. A third magnetic plate 851 is fixedly connected to both sides of the mounting disk 85, and the third magnetic plate 851 and the second magnetic plate 83 repel each other magnetically.

[0046] Through the arrangement of the above structure, the second motor 84 is turned on to drive the mounting plate 85 to rotate. At this time, the repulsive effect of the third magnetic plate 851 and the second magnetic plate 83 is utilized. When the two are in the repulsive area, the second magnetic plate 83 will move downward, thereby pulling the vibration plate 81 downward and compressing the second spring 811. Subsequently, when the two are out of the repulsive area, under the rebound effect of the second spring 811, the vibration plate 81 will rebound quickly and hit the inner top of the vibration bin 8, thereby generating a vibration effect at the bottom of the clamping seat 4, and finally transmitting the vibration effect to the circuit board to be tested, thereby completing the detection of whether there are defects in the connecting parts of the circuit board under the vibration environment, and effectively improving the detection effect.

[0047] Reference Figure 2 , Figure 4 , wherein, a suction pipe 9 is fixedly connected to the top of the base 1, and the top of the suction pipe 9 is fixed and connected to an adsorption box 91, and a plurality of adsorption holes 911 are provided on the side wall of the adsorption box 91, and the adsorption holes 911 face the detection end of the detection probe 2, and an arc box 92 is fixedly connected to the side wall of the vibration bin 8, and the arc box 92 is connected to the inner cavity of the vibration bin 8, and a first through groove 921 is provided on the side wall of the arc box 92, and a sealing ring 93 is fixedly connected to the inner wall of the base 1, and the arc box 92 and the sealing ring 93 fit and slide, and a second through groove 931 is provided on the side wall of the sealing ring 93 located below the detection probe 2, and the bottom end of the suction pipe 9 is connected to the inner cavity of the sealing ring 93, and a one-way valve is provided in the suction pipe 9.

[0048] It should be noted that the one-way valve in the air suction pipe 9 can only allow the gas around the detection end of the detection probe 2 to enter the vibration chamber 8 along the air suction pipe 9.

[0049] Through the setting of the above-mentioned structure, when the vibration plate 81 moves upward to reset, a suction effect will be generated in the lower cavity of the vibration bin 8, thereby opening the one-way valve arranged in the suction pipe 9, so that the airflow around the detection end of the detection probe 2 is sucked into the vibration bin 8 along the adsorption hole 911, the adsorption box 91 and the suction pipe 9, thereby accelerating the airflow velocity around the detection end of the detection probe 2, effectively preventing dust and impurities from adhering to the detection end of the detection probe 2, ensuring the clarity of the detection probe 2, and improving the accuracy of the detection results.

[0050] Reference Figure 2 , Figure 3 and Figure 5 Among them, an inflation tube 94 is fixed and connected to the side wall of the vibration bin 8, the other end of the inflation tube 94 is connected to the bottom of the inner cavity of the telescopic sleeve 54, and a one-way valve is arranged in the inflation tube 94, an exhaust pipe 941 is fixed and connected to the bottom side wall of the telescopic sleeve 54, a blocking block 95 is fixedly connected to the bottom of the inner cavity of the base 1, and the top end of the exhaust pipe 941 fits and slides with the bottom of the blocking block 95.

[0051] It should be noted that the one-way valve in the inflation tube 94 can only allow the gas in the vibration chamber 8 to enter the telescopic sleeve 54 along the inflation tube 94 .

[0052] Through the arrangement of the above structure, when the vibration plate 81 moves downward, the gas in the lower cavity of the vibration chamber 8 will be compressed, thereby opening the one-way valve in the inflation tube 94, so that this part of the compressed gas enters the telescopic sleeve 54 along the inflation tube 94, and then pushes the telescopic end of the telescopic sleeve 54 to be lifted upward, thereby shortening the distance between the first magnetic plate 541 and the piston block 531, so that the piston block 531 can compress the gas in the inflation cylinder 53 to a greater extent, thereby increasing the air pressure filled in each group of inflation grooves 51, thereby further improving the clamping effect of the clamping block 52 on the circuit board, ensuring the stability of the circuit board during vibration detection.

[0053] Embodiment 2:

[0054] Reference Figure 1-Figure 8 , which is basically the same as the first embodiment, a circuit board detection method is proposed on the basis of the first embodiment, and the steps are as follows:

[0055] Step 1: Transfer the circuit board to be tested to the card holder 4;

[0056] Step 2: Clean the circuit board detection surface in the card seat 4;

[0057] Step 3: Move the circuit board to below the detection probe 2 for detection;

[0058] Step 4: Apply vibration to the circuit board under test to complete further testing.

[0059] Reference Figure 1-Figure 8 In the present invention, when in use, the circuit board to be inspected is first placed in the clamping seat 4 at the loading station by a side mechanical arm, and then the first motor 61 is turned on to drive the driving gear 62 to rotate one circle, and by utilizing the meshing relationship between the driving gear 62 and the annular gear ring 6, the rotating disk 3 will also rotate exactly one-third of a circle, so that the clamping seat 4 at the loading station moves to the bottom of the detection probe 2, and the detection of whether there are defects in the various connecting parts of the circuit board is completed; and when the driving gear 62 rotates one circle, it will also drive the driven gear 731 to rotate several circles, so that the air guide blade 73 rotates in the air guide seat 72, thereby pushing the air flow along the air guide seat 72 and the air guide pipe 71 into the air guide box 7, and finally blown from the air outlet of the air guide box 7 to the circuit board that rotates and passes under the air guide box 7, so as to clean the detection surface of the circuit board, improve the neatness of the detection surface of the circuit board, and thus improve the subsequent detection accuracy.

[0060] Then, the second motor 84 is turned on to drive the mounting plate 85 to rotate. At this time, the repulsive effect of the third magnetic plate 851 and the second magnetic plate 83 is utilized. When the two are in the repulsive area, the second magnetic plate 83 will move downward, thereby pulling the vibration plate 81 downward and compressing the second spring 811. Then, when the two are out of the repulsive area, under the rebound effect of the second spring 811, the vibration plate 81 will rebound quickly and hit the inner top of the vibration chamber 8, thereby generating a vibration effect at the bottom of the card seat 4, and finally transmitting the vibration effect to the circuit board to be tested, completing the circuit under the vibration environment. Whether there are defects in the connecting parts of the board is detected, which effectively improves the detection effect; and when the clamping seat 4 moves toward the bottom of the detection probe 2, the corresponding inflation cylinder 53 will also move above the first magnetic plate 541, and the repulsive effect between the first magnetic plate 541 and the piston block 531 will cause the piston block 531 to move in the direction of compressing the first spring 532, so that the gas in the inflation cylinder 53 is pushed into each group of inflation grooves 51 along the air guide ring tube 5, so that the clamping block 52 is pushed outward, so as to clamp and fix the circuit board, thereby improving the stability of the circuit board during the detection process.

[0061] When the card seat 4 moves to the bottom of the detection probe 2, the top of the exhaust pipe 941 moves to the bottom of the blocking block 95 and fits tightly therewith, and the first through groove 921 is also in a fit and connected state with the second through groove 931. When the vibration plate 81 moves downward, the gas in the lower cavity of the vibration chamber 8 is compressed, thereby opening the one-way valve in the inflation pipe 94, so that this part of the compressed gas enters the telescopic sleeve 54 along the inflation pipe 94, and then pushes the telescopic end of the telescopic sleeve 54 to be lifted upward, thereby shortening the distance between the first magnetic plate 541 and the piston block 531, so that the piston block 531 can vent the gas in the inflation cylinder 53 to a greater extent. Compression increases the air pressure filled in each group of air filling grooves 51, thereby further improving the clamping effect of the clamping block 52 on the circuit board and ensuring the stability of the circuit board during vibration detection; and when the vibration plate 81 moves upward to reset, suction is generated in the lower cavity of the vibration bin 8, thereby opening the one-way valve arranged in the suction pipe 9, so that the airflow around the detection end of the detection probe 2 is sucked into the vibration bin 8 along the adsorption hole 911, the adsorption box 91 and the suction pipe 9, thereby accelerating the airflow velocity around the detection end of the detection probe 2, effectively preventing dust and impurities from adhering to the detection end of the detection probe 2, ensuring the clarity of the detection probe 2, and improving the accuracy of the detection result.

[0062] Next, when the rotating disk 3 continues to rotate one-third of a circle, the inspected circuit board will move to the unloading station, and the blocking block 95 will also be detached from the exhaust pipe 941, thereby releasing the blockage of the exhaust pipe 941. At this time, the airflow filled in the telescopic sleeve 54 will be discharged, and the piston block 531 will also be detached from the top of the first magnetic plate 541, so as to recover the gas filled in the inflation groove 51 and release the fixed clamping effect. Finally, the robotic arm on the other side is used to take out the inspected circuit board that has been moved to the unloading station, and the three-station clamping seat 4 is continuously and intermittently operated, which effectively improves the detection efficiency.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circuit board detection device, comprising a base (1) and a detection probe (2), wherein the detection probe (2) is fixed on the top of the base (1), characterized in that: Also includes: A rotating disk (3) is rotatably connected to the top of the base (1). Wherein, three groups of clamping seats (4) are arranged at equal intervals on the rotating disk (3), a clamping portion for fixing a circuit board is arranged inside the clamping seat (4), and a driving portion for driving the rotating disk (3) to rotate is arranged inside the base (1); A cleaning component, the cleaning component is installed above the rotating disk (3), and the cleaning component is used to clean the circuit board detection surface in the card seat (4); A vibration component is arranged at the bottom of the rotating disk (3) and is used to apply vibration to the circuit board during detection.

2. A circuit board detection device according to claim 1, characterized in that: The clamping portion comprises an air guide ring tube (5), the air guide ring tube (5) being fixed on the clamping seat (4), the inner wall of the clamping seat (4) being provided with air filling grooves (51) all around, the air guide ring tube (5) being communicated with the inner cavity of each group of air filling grooves (51) respectively, a clamping block (52) being slidably connected in the air filling groove (51), and the outer end of the clamping block (52) being made of rubber, and an air filling portion for introducing air into the air filling groove (51) is provided on the rotating disk (3).

3. A circuit board detection device according to claim 2, characterized in that: The inflation part comprises an inflation cylinder (53), the inflation cylinder (53) is fixedly connected to the rotating disk (3), and the number of the inflation cylinders (53) matches the clamping seat (4), the upper part of the inner cavity of the inflation cylinder (53) is connected to the inner cavity of the air guide ring tube (5), a piston block (531) is slidably connected inside the inflation cylinder (53), a first spring (532) is fixedly connected between the top of the piston block (531) and the inner top of the inflation cylinder (53), a telescopic sleeve (54) is fixedly connected to the bottom of the inner cavity of the base (1) close to the detection probe (2), a first magnetic plate (541) is fixedly connected to the top of the telescopic end of the telescopic sleeve (54), the first magnetic plate (541) and the piston block (531) are magnetically repelled, and the first magnetic plate (541) is set in a one-third arc shape.

4. A circuit board detection device according to claim 1, characterized in that: The driving part comprises an annular gear ring (6), wherein the annular gear ring (6) is fixed to the bottom of the rotating disk (3), a first motor (61) is fixedly connected to the bottom of the inner cavity of the base (1), an output shaft of the first motor (61) is fixedly connected to a driving gear (62), the driving gear (62) is meshingly connected to the annular gear ring (6), and the number of teeth of the annular gear ring (6) is three times that of the driving gear (62).

5. A circuit board detection device according to claim 4, characterized in that: The cleaning assembly comprises an air guide box (7) with an air outlet opening at the bottom, an air guide pipe (71) is fixedly connected to the side wall of the air guide box (7), an air guide seat (72) is fixedly connected inside the base (1), the air guide pipe (71) passes through the central slot of the rotating disk (3) and is fixedly connected to the top of the air guide seat (72), and the two ends of the air guide pipe (71) are respectively connected to the inner cavity of the air guide box (7) and the air guide seat (72), an air guide blade (73) is rotatably connected inside the air guide seat (72), and a driven gear (731) is fixedly connected to the rotating bottom end of the air guide blade (73), the driven gear (731) is meshedly connected to the driving gear (62), and the number of teeth of the driving gear (62) is greater than the number of teeth of the driven gear (731).

6. A circuit board detection device according to claim 3, characterized in that: The vibration assembly comprises three groups of vibration bins (8), wherein the vibration bins (8) are fixed at the bottom of the rotating disk (3), and each group of the vibration bins (8) is aligned with the clamping seat (4), a vibration plate (81) is slidably connected inside the vibration bin (8), and a second spring (811) is fixedly connected between the two sides of the bottom of the vibration plate (81) and the bottom of the vibration bin (8), and a plurality of groups of guide rods (82) are fixedly connected to the bottom of the vibration plate (81), and the bottom end of the guide rod (82) passes through the bottom of the vibration bin (8) and is fixedly connected to a second magnetic plate (83), and a second motor (84) is fixedly connected to the inner wall of the base (1), and the output shaft end of the second motor (84) is fixedly connected to a mounting disk (85), and both sides of the mounting disk (85) are fixedly connected to third magnetic plates (851), and the third magnetic plate (851) and the second magnetic plate (83) are magnetically repelled from each other.

7. A circuit board detection device according to claim 6, characterized in that: The top of the base (1) is fixedly connected to an air suction pipe (9), the top of the air suction pipe (9) is fixedly connected to and communicated with an adsorption box (91), a plurality of adsorption holes (911) are provided on the side wall of the adsorption box (91), and the adsorption holes (911) face the detection end of the detection probe (2), the side wall of the vibration bin (8) is fixedly connected to an arc box (92), the arc box (92) is communicated with the inner cavity of the vibration bin (8), a first through groove (921) is provided on the side wall of the arc box (92), a sealing ring (93) is fixedly connected to the inner wall of the base (1), the arc box (92) and the sealing ring (93) are fitted and slidably engaged, a second through groove (931) is provided on the side wall of the sealing ring (93) located below the detection probe (2), the bottom end of the air suction pipe (9) is communicated with the inner cavity of the sealing ring (93), and a one-way valve is provided in the air suction pipe (9).

8. A circuit board detection device according to claim 7, characterized in that: An air filling pipe (94) is fixed on and connected to the side wall of the vibration chamber (8); the other end of the air filling pipe (94) is connected to the bottom of the inner cavity of the telescopic sleeve (54); a one-way valve is arranged in the air filling pipe (94); an exhaust pipe (941) is fixed on and connected to the bottom side wall of the telescopic sleeve (54); a sealing block (95) is fixedly connected to the bottom of the inner cavity of the base (1); and the top end of the exhaust pipe (941) is slidably fitted with the bottom of the sealing block (95).

9. A circuit board detection device according to claim 1, characterized in that: Mechanical arms are arranged on both sides of the base (1), and two groups of the mechanical arms and the detection probes (2) are equidistantly spaced and distributed in a ring on the base (1).

10. A circuit board detection method, using a circuit board detection device as claimed in any one of claims 1 to 9, characterized in that: Here are the steps: Step 1: Transfer the circuit board to be tested into the card holder (4); Step 2: Cleaning the detection surface of the circuit board in the card connector (4); Step 3: Move the circuit board to below the detection probe (2) for detection; Step 4: Apply vibration to the circuit board under test to complete further testing.

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