Circuit board detection device and method

Abstract

The present invention discloses a circuit board detection device and method, which belongs to the field of circuit board detection. A circuit board detection device includes a base and a detection probe, wherein the detection probe is fixed on the top of the base, and further includes: 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 a clamping part for fixing the circuit board, and the base is provided with a driving part for driving the rotating disk to rotate; the present invention applies a vibration effect 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, thereby simulating a more realistic usage scenario and effectively improving 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 results.

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] Printed circuit boards (PCBs), also known as 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 them through conductive pathways. To ensure quality, PCBs are typically inspected for surface defects using high-resolution cameras after production.

[0003] Currently, existing inspection devices generally only use high-resolution cameras to detect surface defects on circuit boards in a static state. However, many circuit boards move dynamically during use, subjecting them to vibration and other additional effects. Static inspection alone cannot meet the requirements for circuit board quality inspection, reducing inspection effectiveness. Furthermore, during inspection, dust and impurities may adhere to the circuit board and camera surfaces, reducing inspection accuracy. Therefore, a circuit board inspection device and method are proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the existing technology cannot meet the needs of circuit board quality inspection only through static inspection, 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 decrease, 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 includes a base and a detection probe, wherein the detection probe is fixed on the top of the base, and further includes: a rotating disk, which is rotatably connected to the top of the base, wherein three groups of clamping seats are arranged at equal intervals on the rotating disk, the clamping seats are provided with clamping parts for fixing circuit boards, and the base is provided with a driving part for driving the rotating disk to rotate; a cleaning component, which is installed above the rotating disk and is used to clean the circuit board detection surface in the clamping seat; and a vibration component, which is arranged at the bottom of the rotating disk and 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 air filling grooves are provided around the inner wall of the clamping seat. The air guide ring tube is respectively connected to 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, and a piston block is slidably connected in the inflation cylinder, and a first spring is fixedly connected between the top of the piston block and the top of the inflation cylinder, and a telescopic sleeve is fixedly connected to the side of the bottom of the base inner cavity close to the detection probe, and 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 magnetically repel each other, 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 the 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 pipe is fixedly connected to the side wall of the air guide box, an air guide seat is fixedly connected to the base, the air guide pipe 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 pipe are respectively connected to the air guide box and the inner cavity of the air guide seat, an air guide blade is rotatably connected to the air guide seat, and the rotating bottom end of the air guide blade is fixedly connected to a driven gear, the driven gear is meshed with the 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, which are fixed to the bottom of the rotating disk, and each group of the vibration bins is aligned with the clamping seat, and 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 multiple groups 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 the second magnetic plate, and 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 the mounting disk, and third magnetic plates are fixedly connected on 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, the top of the base is fixedly connected to a suction pipe, the top of the suction pipe is fixed and connected to an adsorption box, the side wall of the adsorption box is provided with multiple groups of adsorption holes, and the adsorption holes are facing the detection end of the detection probe, the side wall of the vibration bin is fixedly connected to an arc box, the arc box is communicated with the inner cavity of the vibration bin, a first through groove is provided on the side wall of the arc box, the inner wall of the base is fixedly connected to a sealing ring, the arc box and the sealing ring slide in fit, the side wall of the sealing ring located below the detection probe is provided with a second through groove, 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 on 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 provided in the inflation tube, an exhaust pipe is fixed on 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 contact with the bottom of the sealing block.

[0014] In order to facilitate loading and unloading, preferably, robotic arms are provided on both sides of the base, and two groups of robotic 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 detection surface of the circuit board in the card seat;

[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 has the following beneficial effects:

[0021] 1. The circuit board detection device applies a vibration effect 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, thereby simulating a more realistic usage scenario and effectively improving 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 results.

[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 vibrating plate during the reciprocating movement, it can inflate the telescopic sleeve, thereby shortening the distance between the first magnetic plate and the piston block, increasing the repulsive effect between the two, and then increasing the air pressure filled in each group of inflation grooves, further improving the clamping effect of the circuit board.

[0023] 3. The circuit board detection device realizes intermittent conversion of three workstations through the cooperation of the annular gear ring and the driving gear, effectively improving the detection efficiency; and cooperates with the meshing transmission of the driven gear to enable the air guide blades to push the air flow to the circuit board passing under the air guide box, thereby cleaning the circuit board detection surface, improving the neatness of the circuit board detection surface, 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 This is a side view half-section structural diagram 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 Schematic diagram of the enlarged structure of area A in the middle;

[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 This is a schematic diagram of the transverse cross-sectional structure of a circuit board detection device proposed by the present invention;

[0030] Figure 7 This is 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. Adapter; 5. Air guide ring; 51. Inflating groove; 52. Clamping block; 53. Inflating cylinder; 531. Piston block; 532. First spring; 54. Telescopic sleeve; 541. First magnetic plate; 6. Ring gear; 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 chamber; 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 clearly and completely described 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 should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0035] Example 1:

[0036] Reference Figures 1-8 A circuit board detection device includes a base 1 and a detection probe 2, the detection probe 2 is fixed on the top of the base 1, and also includes: a rotating disk 3, the rotating disk 3 is rotatably connected to the top of the base 1, wherein three groups of clamping seats 4 are evenly spaced on the rotating disk 3, the clamping seats 4 are provided with a clamping portion for fixing the circuit board, and the base 1 is provided with a driving portion for driving the rotating disk 3 to rotate; a cleaning component, the cleaning component 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; the vibration component 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 Figures 1-6, wherein the clamping portion 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 an air filling groove 51. The air guide ring tube 5 is respectively connected to the inner cavity of each group of air filling grooves 51. 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. An air filling portion for introducing gas into the air filling groove 51 is provided on the rotating disk 3; the air filling portion 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 to the inner cavity of the air guide ring tube 5, and a piston block 531 is slidably connected to the inner cavity of the inflation cylinder 53. A first spring 532 is fixedly connected between the top of the piston block 531 and the top of the inner cavity 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 below the detection probe 2. In other areas, the circuit board will not be clamped, so that unloading after detection can be carried out, which improves the convenience of detection.

[0039] Through the arrangement of the above structure, 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. 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, 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 to the bottom of the rotating disk 3, and a first motor 61 is fixedly connected to the bottom of the inner cavity of the base 1. The output shaft of the first motor 61 is fixedly connected to a driving gear 62, 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; robotic arms are provided on both sides of the base 1, and the two sets of robotic arms and the 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 be switched once, thereby realizing continuous switching of the workstations.

[0042] Through the setting 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 ring gear 6, the rotating disk 3 will also rotate exactly one-third of a circle at this time, realizing intermittent switching of different workstations, effectively improving the detection efficiency.

[0043] Reference Figure 1-Figure 3 , wherein the cleaning component 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, and an air guide seat 72 is fixedly connected to 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 air guide box 7 and the inner cavity of the air guide seat 72, and an air guide blade 73 is rotatably connected to the air guide seat 72, and the rotating bottom end of the air guide blade 73 is fixedly connected to a driven gear 731, which is meshed with the driving gear 62, and the number of teeth of the driving gear 62 is greater than that of the driven gear 731.

[0044] Through the arrangement of the above 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 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, thereby cleaning the detection surface of the circuit board, improving the cleanliness of the detection surface of the circuit board, and thereby improving the subsequent detection accuracy.

[0045] Reference Figure 2 、 Figure 4 , wherein the vibration assembly includes three groups of vibration bins 8, which are fixed to the bottom of the rotating disk 3, and each group of vibration bins 8 are aligned with the clamping seat 4, and 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, and a plurality 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 the 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 the mounting disk 85, and both sides of the mounting disk 85 are fixedly connected to the third magnetic plate 851, and the third magnetic plate 851 and the second magnetic plate 83 magnetically repel each other.

[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. Then, when the two are out of the repulsive area, under the rebound action 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 clamping seat 4, and finally transmitting this vibration effect to the circuit board to be tested, completing the detection of whether there are defects in the various connection parts of the circuit board under the vibration environment, effectively improving the detection effect.

[0047] Reference Figure 2 、 Figure 4 , wherein, the top of the base 1 is fixedly connected to a suction pipe 9, the top of the suction pipe 9 is fixed and connected to an adsorption box 91, and the side wall of the adsorption box 91 is provided with multiple groups of adsorption holes 911, and the adsorption holes 911 are facing the detection end of the detection probe 2, and the side wall of the vibration bin 8 is fixedly connected to an arc box 92, 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 slide in fits, 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 structure, when the vibration plate 81 moves upward to reset, a suction effect will be generated in the lower cavity of the vibration chamber 8, thereby opening the one-way valve set in the suction pipe 9, so that the airflow around the detection end of the detection probe 2 is sucked into the vibration chamber 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 , wherein, an inflation tube 94 is fixed on 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 provided in the inflation tube 94, and an exhaust pipe 941 is fixed on and connected to the bottom side wall of the telescopic sleeve 54, and 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 slides in contact 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, and ensuring the stability of the circuit board during vibration detection.

[0053] Example 2:

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

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

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

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

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

[0059] Reference Figures 1-8 The first motor 61 is then turned on to drive the driving gear 62 to rotate one circle, and the meshing relationship between the driving gear 62 and the annular gear ring 6 is utilized. At this time, the rotating disk 3 will also rotate one-third of a circle, so that the clamping seat 4 at the loading station moves to the bottom of the detection probe 2, completing the detection of whether there are defects in the various connection parts of the circuit board; 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 blades 73 rotate 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 rotating over the bottom of the air guide box 7, thereby cleaning the inspection surface of the circuit board, improving the cleanliness of the inspection surface of the circuit board, and thus improving the subsequent inspection accuracy.

[0060] Then turn on the second motor 84 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 this vibration effect to the circuit board to be tested, completing the circuit under vibration environment. The detection of whether there are defects in the connecting parts of the board 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, 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.

[0061] When the clamping 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 irrigate 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, ensuring the stability of the circuit board during vibration detection; and when the vibration plate 81 resets and moves upward, suction is generated in the lower cavity of the vibration bin 8, thereby opening the one-way valve provided 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.

[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 separated 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 separated from the top of the first magnetic plate 541, thereby recovering the gas filled in the inflation groove 51 and releasing 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 embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection 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). 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 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, the cleaning component being mounted above the rotating disk (3) and being used to clean the detection surface of the circuit board in the card seat (4); A vibration component, the vibration component is arranged at the bottom of the rotating disk (3), and the vibration component is used to apply a vibration effect to the circuit board during detection; The clamping portion includes an air guide ring tube (5), the air guide ring tube (5) is fixed on the clamping seat (4), and the inner wall of the clamping seat (4) is provided with air filling grooves (51) all around. The air guide ring tube (5) is communicated with the inner cavity of each group of air filling grooves (51), and 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 portion for introducing air into the air filling groove (51); The inflation portion includes 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 in 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 side of 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; The vibration assembly includes three groups of vibration bins (8), 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 in 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 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 the 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 the mounting disk (85), and both sides of the mounting disk (85) are fixedly connected to the third magnetic plate (851), and the third magnetic plate (851) and the second magnetic plate (83) are magnetically repelled; The top of the base (1) is fixedly connected to an air suction pipe (9), the top of the air suction pipe (9) is fixed and connected to 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 connected to the inner cavity of the vibration bin (8), a first through groove (921) is provided on the side wall of the arc box (92), the inner wall of the base (1) is fixedly connected to a sealing ring (93), the arc box (92) and the sealing ring (93) are fitted and slidable, and 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 connected to the inner cavity of the sealing ring (93), and a one-way valve is provided in the air suction pipe (9).

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

3. A circuit board detection device according to claim 2, 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 the rotating bottom end of the air guide blade (73) is fixedly connected to a driven gear (731), 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).

4. A circuit board detection device according to claim 1, characterized in that: An inflation tube (94) is fixed on and connected to the side wall of the vibration chamber (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 provided in the inflation tube (94). An exhaust tube (941) is fixed on and connected to the bottom side wall of the telescopic sleeve (54), and 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 tube (941) is fitted and slidably engaged with the bottom of the blocking block (95).

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

6. A circuit board detection method, using a circuit board detection device according to any one of claims 1 to 5, characterized in that: Here are the steps: Step 1: Transfer the circuit board to be tested into the card holder (4); Step 2: Clean the circuit board detection surface in the card seat (4); Step 3: Move the circuit board to the bottom of the detection probe (2) for detection; Step 4: Apply vibration to the circuit board under test to complete further testing.

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