A test structure for hole-in-disk for BGA security board processing

Abstract

The present invention discloses a test structure for a hole in a disk for processing a BGA security board, and relates to the field of security board testing. A test structure for a hole in a disk for processing a BGA security board comprises a mounting shell, and further comprises: a placement slot, arranged in the mounting shell, the placement slot being used to place the security board to be tested; an air pump, fixedly connected to the mounting shell, the air inlet end and the air outlet end of the air pump being connected to an air inlet pipe and an air outlet pipe respectively; multiple groups of air outlet holes, all arranged in the placement slot, the air outlet holes being connected to the air outlet pipe; a sliding rod, slidably connected in the placement slot, the sliding rod being located below the security board; the present invention drives a pneumatic rotating head through an air pump, driving a light-emitting lamp to rotate back and forth continuously, and after light passes through the hole in the disk of the security board, it is received by a light receiver. Based on the stability of the light reception, it is possible to accurately determine whether the hole in the disk is blocked, thereby achieving efficient and accurate detection.

Description

Technical Field

[0001] The invention belongs to the technical field of security board testing, and in particular relates to a test structure for a hole in a plate used for processing a BGA security board. Background Art

[0002] In the field of modern security monitoring, BGA security boards, as circuit boards for security monitoring equipment using ball grid array packaging technology, play a key role. During their processing, the hole-in-pad process is extremely important and quite complex. High-precision drilling equipment is usually required to drill holes that meet the requirements on the pads. This places strict demands on drilling accuracy. Not only must the via positions be accurate, but indicators such as the concentricity of the vias and pads must also strictly meet the standards, because these indicators are directly related to the electrical performance and overall stability of the BGA security board. Once deviations occur, it may cause security equipment to malfunction and affect the security monitoring effect.

[0003] After the hole-in-disk processing is completed, inspection and testing are indispensable. Currently, conventional inspection methods include manual visual inspection, optical inspection equipment inspection, measuring tool measurement, and three-coordinate measuring machine inspection. Among them, optical equipment inspection has become a more commonly used inspection method due to its high accuracy and efficiency. However, the existing inspection technology still has many problems that need to be solved.

[0004] During the actual inspection process, metal debris, resin and other impurities are easily attached to the disk hole. The presence of these impurities will cause the disk hole to be blocked, seriously affecting the inspection effect. Once the impurities block the disk hole, the optical inspection equipment may not be able to accurately obtain the true size and internal flatness information of the disk hole, resulting in deviations in the inspection results and failure to detect the defects of the disk hole in time, which in turn affects the quality and performance of the BGA security board. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a security panel test that can overcome the above problems or at least partially solve the above problems.

[0006] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a test structure for a hole-in-a-plate for processing a BGA security board, comprising a mounting housing and:

[0007] A placement slot is provided in the mounting shell, and is used to place the security panel to be tested;

[0008] An air pump is fixedly connected to the mounting shell, and an air inlet pipe and an air outlet pipe are connected to the air inlet end and the air outlet end of the air pump respectively;

[0009] Multiple groups of air outlet holes are arranged in the placement groove, and the air outlet holes are connected to the air outlet pipe;

[0010] A sliding rod, slidably connected in the placement slot, the sliding rod being located below the security plate;

[0011] A pneumatic rotary head is fixedly connected to the sliding rod, an output end of the pneumatic rotary head passes through the sliding rod, and the pneumatic rotary head is connected to the air outlet pipe;

[0012] A light-emitting lamp is rotatably connected to the sliding rod, and the light-emitting lamp is fixedly connected to the output end of the pneumatic rotating head;

[0013] The light receiver is fixedly connected in the placement groove, and can continuously inject gas into the pneumatic rotating head through the outlet pipe of the air pump, thereby driving the light-emitting lamp to continuously rotate back and forth. Then, the light receiver is used to receive the light emitted by the light-emitting lamp through the hole in the disk on the security plate. When the light receiver stably receives the light emitted by the light-emitting lamp through the hole in the disk on the security plate, it indicates that the hole in the disk is unobstructed and unblocked. If the received light is not stable, it means that the hole in the disk may be blocked.

[0014] Furthermore, four groups of grooves are arranged oppositely in the placement slot, two groups of grooves are connected to expansion airbags, the air outlet pipe is connected to auxiliary pipe 2, the auxiliary pipe 2 is connected to the expansion airbag, and an electronic valve is connected inside the auxiliary pipe 2.

[0015] Furthermore, a pressure relief pipe is connected to the expansion airbag, and the expansion airbag is used to squeeze the security plate on the placement groove through the bottom surface to fix it, and after the two groups of expansion airbags are inflated, they can cover the end surface of the security plate.

[0016] Furthermore, a cylinder is fixedly connected to the other two groups of grooves, a knocking rod is fixedly connected to the telescopic end of the cylinder, a pressure relief port is connected to the cylinder, and the knocking rod is used to knock the side of the security plate.

[0017] Furthermore, the air outlet pipe is connected to an auxiliary pipe three, the auxiliary pipe three is connected to the cylinder, and an electronic valve is connected inside the auxiliary pipe three.

[0018] Furthermore, a partition is fixedly connected to the groove in which the cylinder is provided, and the partition is used to receive the knocking of the knocking rod and transmit the vibration to the security plate.

[0019] Furthermore, a plurality of telescopic rods are fixedly connected to the sliding rod, a nozzle is fixedly connected to the telescopic end of the telescopic rod, an auxiliary pipe five is connected to the air outlet pipe, and the auxiliary pipe five is connected to the nozzle.

[0020] Furthermore, a slide groove is provided in the placement groove, a motor is fixedly connected in the slide groove, a screw rod is fixedly connected to the output end of the motor, the sliding rod is threadedly connected to the screw rod, and the sliding rod is slidably connected in the slide groove.

[0021] Furthermore, a filter tank is fixedly connected to the mounting shell, and the filter tank is connected to the air intake pipe.

[0022] Furthermore, auxiliary pipe 1 and auxiliary pipe 4 are connected to the air outlet pipe, auxiliary pipe 1 is connected to the air outlet, auxiliary pipe 4 is connected to the pneumatic rotating head, auxiliary pipe 1, auxiliary pipe 2, auxiliary pipe 3, auxiliary pipe 4 and auxiliary pipe 5 are all connected to electronic valves, and auxiliary pipe 4 and auxiliary pipe 5 are both telescopic hoses.

[0023] After adopting the above technical solution, the present invention has the following advantages compared with the existing technology: the present invention drives the pneumatic rotating head through an air pump, driving the light-emitting lamp to rotate back and forth continuously. After the light passes through the hole in the disk of the security plate, it is received by the light receiver. Based on the stability of the light reception, it can accurately determine whether the hole in the disk is blocked, thereby achieving efficient and accurate detection;

[0024] In addition, the air outlet is set to increase the air pressure in the bottom space of the security plate, and the air naturally flows through the holes in the plate to achieve preliminary cleaning. The air nozzle on the sliding rod can be flexibly adjusted by the telescopic rod to carry out targeted air jets to the holes in the plate, further removing tiny impurities and significantly reducing the interference of impurities on the test results.

[0025] The cylinder drives the knocking rod to generate knocking vibration, which acts on the fixed security plate. This vibration can cause loosely adhered impurities to fall off, reduce the interference of impurities, and further improve the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In the attached figure:

[0027] Figure 1 This is a schematic diagram of the test structure of a hole-in-plate for BGA security board processing proposed by the present invention. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the test structure of a hole-in-plate for BGA security board processing proposed by the present invention. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the structure of the placement slot in the test structure of the hole in the plate for BGA security board processing proposed by the present invention Figure 1 ;

[0030] Figure 4 This is a schematic diagram of the structure of the placement slot in the test structure of the hole in the plate for BGA security board processing proposed by the present invention Figure 2 ;

[0031] Figure 5 This is a schematic cross-sectional view of a placement slot in a test structure for a hole-in-a-plate for processing a BGA security board proposed by the present invention;

[0032] Figure 6 This invention proposes a test structure for a hole-in-plate used in BGA security board processing. Figure 5 Schematic diagram of the structure of part A;

[0033] Figure 7 This is a schematic diagram of the structure of the placement slot in the test structure of the hole in the plate for BGA security board processing proposed by the present invention Figure 3 ;

[0034] Figure 8 This invention proposes a test structure for a hole-in-plate used in BGA security board processing. Figure 7 Schematic diagram of the structure of part B;

[0035] Figure 9 This is a schematic diagram of the structure of the placement slot in the test structure of the hole in the plate for BGA security board processing proposed by the present invention Figure 4 .

[0036] In the figure: 1. Mounting shell; 101. Placement slot; 102. Air outlet; 103. Light receiver; 2. Air pump; 201. Air outlet pipe; 202. Air inlet pipe; 203. Auxiliary pipe 1; 204. Auxiliary pipe 2; 205. Auxiliary pipe 3; 206. Auxiliary pipe 4; 207. Auxiliary pipe 5; 301. Motor; 302. Screw; 303. Sliding rod; 304. Light lamp; 305. Rotating shaft; 306. Pneumatic rotating head; 307. Telescopic rod; 308. Jet head; 4. Inflatable air bag; 401. Pressure relief pipe; 501. Cylinder; 502. Knocking rod; 503. Partition; 6. Filter tank. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0038] Example:

[0039] Reference Figure 1-5, a test structure for a hole in a disk for processing a BGA security board, comprising a mounting shell 1, and further comprising: a placement groove 101, arranged in the mounting shell 1, the placement groove 101 being used to place the security board to be tested; an air pump 2, fixedly connected to the mounting shell 1, the air inlet end and the air outlet end of the air pump 2 being respectively connected to an air inlet pipe 202 and an air outlet pipe 201; a plurality of groups of air outlet holes 102, all arranged in the placement groove 101, the air outlet holes 102 being connected to the air outlet pipe 201; a sliding rod 303, slidingly connected in the placement groove 101, the sliding rod 303 being located below the security board; a pneumatic rotating head 306, fixedly connected to the sliding rod 303, the output end of the pneumatic rotating head 306 passing through the sliding rod 303, the pneumatic rotating head 306 being connected to the air outlet pipe 201; a light-emitting lamp 304, rotatably connected in the sliding rod 303, the light-emitting lamp 304 being fixedly connected to the output end of the pneumatic rotating head 306;The light receiver 103 is fixedly connected to the placement slot 101. The gas can be continuously injected into the pneumatic rotating head 306 through the outlet pipe 201 of the air pump 2, and then the light emitting lamp 304 is driven to rotate back and forth continuously. Then the light receiver 103 is used to receive the light emitted by the light emitting lamp 304 through the hole in the disk of the security plate. When the light receiver 103 stably receives the light emitted by the light emitting lamp 304 through the hole in the disk of the security plate, it indicates that the hole in the disk is unobstructed and unblocked. If the light is not stably received, it indicates that the hole in the disk may be blocked. There are four groups of grooves relatively arranged in the placement slot 101, two of which are relatively arranged. An expansion airbag 4 is connected to the groove of the placement slot 101, an auxiliary pipe 204 is connected to the air outlet pipe 201, the auxiliary pipe 204 is connected to the expansion airbag 4, an electronic valve is connected to the auxiliary pipe 204, and a pressure relief pipe 401 is connected to the expansion airbag 4. The expansion airbag 4 is used to squeeze the security plate on the placement slot 101 through the bottom surface to fix it, and the two groups of expansion airbags 4 can cover the end surface of the security plate after being inflated. The other two groups of grooves are fixedly connected with a cylinder 501, and the telescopic end of the cylinder 501 is fixedly connected with a knock rod 502. The cylinder 501 is connected to a pressure relief port, and the knock rod 502 is used to knock on the side of the security plate. The outlet pipe 201 is connected to an auxiliary pipe 3 205, which is connected to the cylinder 501. An electronic valve is connected to the auxiliary pipe 3 205. A partition 503 is fixedly connected to the groove in which the cylinder 501 is provided. The partition 503 is used to receive the knocking of the knocking rod 502 and transmit the vibration to the security plate. A plurality of telescopic rods 307 are fixedly connected to the sliding rod 303. The telescopic end of the telescopic rod 307 is fixedly connected to the nozzle 308. The outlet pipe 201 is connected to an auxiliary pipe 5 207, which is connected to the nozzle 308. A chute is provided in the placement slot 101, and a motor 301 is fixedly connected to the chute. A screw rod 302 is fixedly connected to the output end of the motor 301. A sliding rod 303 is threadedly connected to the screw rod 302. The sliding rod 303 slides in a chute. A filter canister 6 is fixedly connected to the mounting housing 1 and is connected to the air inlet pipe 202. Auxiliary pipes 1 and 206 are connected to the air outlet pipe 201. Auxiliary pipe 1 203 is connected to the air outlet 102, and auxiliary pipe 4 206 is connected to the pneumatic rotary head 306. Auxiliary pipes 1 203, 204, 205, 206, and 207 are all connected to electronic valves. Auxiliary pipes 4 206 and 5 207 are both telescopic hoses.

[0040] Before use, the entire optical detection system must be initialized and calibrated. Check that the light 304 is properly illuminated and that its light intensity meets the preset standard. Calibrate the light receiver 103 using a standard sample to ensure it can accurately receive light and convert light signals into electrical signals. Also, check that the motor 301, screw 302, and slide rod 303 are operating smoothly, ensuring that the slide rod 303 can accurately move to the preset detection position.

[0041] Then it is necessary to test the filter tank 6 and the air pump 2 to see whether they can be used normally.

[0042] When the device is in use, the security plate is placed in the placement groove 101, and then the air pump 2 is started. Through the continuous operation of the air pump 2, the gas output from the outlet pipe 201 first enters the expansion airbag 4 through the auxiliary pipe 2 204, and the expansion airbag 4 then expands and extends from the groove, thereby squeezing the security plate in the placement groove 101 and fixing it. At this time, the extended expansion airbag 4 only plays a fixing role and does not block the hole in the plate. A subsequent part enters the outlet hole 102 through the auxiliary pipe 1 203. The outlet holes 102 are evenly distributed in the placement groove 101, and a large amount of gas is discharged from the outlet holes 102 is sprayed out, causing the air pressure in the bottom space of the security plate to increase rapidly. Under the action of the air pressure difference, the gas naturally flows through the holes in the plate of the security plate, performing preliminary cleaning of the holes in the plate and blowing out some loose impurities. At the same time, this process can also detect the air permeability of the holes in the plate. If the air pressure in a certain area is found to be abnormal, it may mean that the holes in the plate in this area are blocked or abnormal, providing clues for subsequent detailed inspections. At this time, it is necessary to set an air pressure sensor in the placement slot 101 as early as possible. This device does not set an air pressure sensor. It only uses this function for cleaning, but does not detect the air pressure.

[0043] Start the motor 301, which is fixed in the slide groove in the placement groove 101. Its output end drives the screw rod 302 to rotate. The sliding rod 303 is threadedly connected to the screw rod 302 and can slide in the slide groove. As the screw rod 302 rotates, the sliding rod 303 moves linearly under the security plate and adjusts to a suitable detection position. At this time, the electronic valve in the auxiliary pipe 206 is controlled to open, and the gas in the outlet pipe 201 enters the pneumatic rotary head 306 through the auxiliary pipe 206. The pneumatic rotary head 306 is fixed on the sliding rod 303, and its output end passes through the sliding rod. 303. Driven by the gas, the output end of the pneumatic rotating head 306 begins to rotate, driving the light-emitting lamp 304 fixedly connected to it to rotate back and forth continuously. The light receiver 103 is fixed in the placement slot 101 and is used to receive the light emitted by the light-emitting lamp 304 through the hole in the disk on the security plate. When the light receiver 103 receives light stably, it indicates that the hole in the disk is unobstructed; if the received light is unstable or cannot be received, it means that the hole in the disk may be blocked or have other defects. The position information is recorded for further inspection and processing.

[0044] The electronic valve in the auxiliary pipe 206 is controlled to open, and the gas in the outlet pipe 201 enters the pneumatic rotary head 306 through the auxiliary pipe 206. The pneumatic rotary head 306 is fixed on the sliding rod 303, and its output end passes through the sliding rod 303. Driven by the gas, the output end of the pneumatic rotary head 306 begins to rotate at a stable speed, driving the light-emitting lamp 304 fixedly connected to it to rotate back and forth continuously. The light emitted by the light-emitting lamp 304 is divergent. After passing through the hole in the disk on the security plate, part of the light is received by the light receiver 103. The light receiver 103 is fixed in the placement slot 101, and its receiving surface corresponds to the light emission direction of the light-emitting lamp 304, and can efficiently receive the light passing through the hole in the disk.

[0045] The light receiver 103 converts the received light signal into an electrical signal and transmits it to the signal processing unit. The signal processing unit amplifies, filters, and processes the received electrical signal to remove noise interference and improve signal quality. Then, the processed signal is analyzed according to a preset algorithm to determine the stability and intensity changes of the light. If the light intensity is stable and within the normal range, it means that the hole in the disk is unobstructed. If the light intensity fluctuates or is lower than the preset threshold, it indicates that the hole in the disk may be blocked or have other defects. For abnormal holes in the disk, their coordinate positions on the security board and the corresponding signal characteristics are recorded for further analysis and processing.

[0046] After completing the inspection of one inspection position, the motor 301 is started again, and according to the preset inspection path and step size, the screw rod 302 is driven to rotate, so that the sliding rod 303 moves to the next inspection position, and the above steps of light emission, light reception, signal processing and analysis are repeated to inspect all the holes in the disk on the security plate one by one. During the inspection process, the inspection progress and status information of the inspected holes in the disk are displayed in real time, which is convenient for the operator to monitor the inspection process.

[0047] During the optical inspection, in order to further ensure the accuracy of the inspection, the hole in the disk is deeply cleaned and vibration tested. The electronic valve in the auxiliary pipe 5 207 is controlled to open, and the gas in the outlet pipe 201 enters the nozzle 308 through the auxiliary pipe 5 207. The nozzle 308 is fixed to the telescopic end of the telescopic rod 307, and the telescopic rod 307 is fixed to the sliding rod 303. By adjusting the length of the telescopic rod 307, the nozzle 308 can be aligned with the hole in the disk. High-pressure gas is ejected from the nozzle 308 to perform targeted cleaning on the hole in the disk and remove tiny impurities adhering to the hole wall.

[0048] In addition, the electronic valve in the auxiliary pipe three 205 is controlled to be open, and the gas in the outlet pipe 201 enters the cylinder 501 through the auxiliary pipe three 205. The cylinder 501 is fixed in the other two groups of grooves in the placement slot 101, and its telescopic end is connected to the knocking rod 502. Under the action of the gas, the telescopic end of the cylinder 501 makes reciprocating motion, driving the knocking rod 502 to continuously knock on the partition 503. The partition 503 is fixed in the groove where the cylinder 501 is provided. It transmits the knocking vibration of the knocking rod 502 to the security plate. This vibration can make some impurities that are not fastened on the security plate fall off, and at the same time simulate the vibration environment that the security plate may be subjected to during actual use. During the vibration process, the light receiving situation of the light receiver 103 is continuously observed. If the hole in the disk that was originally detected normally shows abnormal light reception after vibration, it means that there is a potential problem in the hole in the disk under vibration conditions, which requires further analysis and processing.

[0049] After completing all the inspection steps, turn off the air pump 2, close the electronic valves in each auxiliary pipe in turn, open the pressure relief pipe 401 on the expansion airbag 4, release the gas in the expansion airbag 4 to make it shrink. At this time, the security board that has been inspected can be easily taken out from the placement slot 101, and the inspection results can be sorted and analyzed. The security boards that are detected to have problems are marked and classified for subsequent repair or scrapping.

[0050] Furthermore, the expansion airbag 4 in the present device can adopt an airbag with a higher extension ability, that is, after being inflated, it can become longer. At this time, when gas is injected into the expansion airbag 4, the expansion airbag 4 expands accordingly, and then squeezes the top surface of the security plate, and then blocks part of the hole in the plate. At this time, in this way, the holes for air outlet can be reduced, and the effect of pressurization can be achieved, which has a better cleaning effect on the hole in the plate and reduces the residual impurities in the hole in the plate.

[0051] The present invention drives the pneumatic rotating head 306 through the air pump 2, which drives the light emitting lamp 304 to rotate back and forth continuously. After the light passes through the hole in the disk of the security plate, it is received by the light receiver. Based on the stability of the light reception, it can accurately determine whether the hole in the disk is blocked, thereby achieving efficient and accurate detection.

[0052] In addition, the air outlet 102 increases the air pressure in the bottom space of the security plate, allowing the gas to naturally flow through the holes in the plate, achieving preliminary cleaning. The air nozzle 308 on the sliding rod 303, under the flexible adjustment of the telescopic rod 307, can carry out targeted air jets to the holes in the plate, further removing tiny impurities and significantly reducing the interference of impurities on the detection results.

[0053] The cylinder 501 drives the knocking rod 502 to generate knocking vibration, which acts on the fixed security plate. This vibration can cause loosely adhered impurities to fall off, reduce the interference of impurities, and further improve the accuracy of the detection results.

[0054] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the present invention can make slight changes or modifications to equivalent embodiments using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A test structure for a hole-in-a-plate for processing a BGA security board, comprising a mounting shell (1), characterized in that: Also includes: A placement slot (101) is provided in the installation shell (1), and the placement slot (101) is used to place a security panel to be tested; An air pump (2) is fixedly connected to the mounting shell (1), and an air inlet pipe (202) and an air outlet pipe (201) are connected to the air inlet end and the air outlet end of the air pump (2), respectively; Multiple groups of air outlet holes (102) are all arranged in the placement groove (101), and the air outlet holes (102) are connected to the air outlet pipe (201); A sliding rod (303) is slidably connected in the placement groove (101), and the sliding rod (303) is located below the security plate; A pneumatic rotary head (306) is fixedly connected to the sliding rod (303), an output end of the pneumatic rotary head (306) passes through the sliding rod (303), and the pneumatic rotary head (306) is connected to the air outlet pipe (201); A light emitting lamp (304) is rotatably connected to the sliding rod (303), and the light emitting lamp (304) is fixedly connected to the output end of the pneumatic rotating head (306); The light receiver (103) is fixedly connected in the placement groove (101) and can continuously inject gas into the pneumatic rotating head (306) through the air outlet pipe (201) of the air pump (2), thereby driving the light emitting lamp (304) to continuously rotate back and forth. Then, the light receiver (103) is used to receive the light emitted by the light emitting lamp (304) through the hole in the disk on the security plate. When the light receiver (103) stably receives the light emitted by the light emitting lamp (304) through the hole in the disk on the security plate, it indicates that the hole in the disk is unobstructed and unblocked. If the received light is unstable, it indicates that the hole in the disk may be blocked.

2. The test structure for a hole-in-disk for processing a BGA security board according to claim 1, characterized in that: Four groups of grooves are arranged oppositely in the placement groove (101), wherein two groups of grooves arranged oppositely are connected to the expansion airbags (4), the outlet pipe (201) is connected to the auxiliary pipe 2 (204), the auxiliary pipe 2 (204) is connected to the expansion airbag (4), and the auxiliary pipe 2 (204) is connected to the electronic valve.

3. The test structure for a hole-in-disk for processing a BGA security board according to claim 2, characterized in that: The expansion airbag (4) is connected to a pressure relief pipe (401), and the expansion airbag (4) is used to squeeze the security plate on the placement groove (101) through the bottom surface to fix it, and after the two groups of expansion airbags (4) are inflated, they can cover the end surface of the security plate.

4. The test structure for a hole-in-disk for processing a BGA security board according to claim 3, characterized in that: The other two groups of grooves are fixedly connected with cylinders (501), the telescopic ends of the cylinders (501) are fixedly connected with knocking rods (502), the cylinders (501) are connected with pressure relief ports, and the knocking rods (502) are used to knock the sides of the security plate.

5. The test structure for a hole-in-disk for processing a BGA security board according to claim 4, characterized in that: The outlet pipe (201) is connected to an auxiliary pipe three (205), the auxiliary pipe three (205) is connected to the cylinder (501), and an electronic valve is connected inside the auxiliary pipe three (205).

6. The test structure for a hole-in-disk for processing a BGA security board according to claim 5, characterized in that: A partition plate (503) is fixedly connected in the groove in which the cylinder (501) is provided. The partition plate (503) is used to receive the knocking of the knocking rod (502) and transmit the vibration to the security plate.

7. The test structure for a via in disk for processing a BGA security board according to claim 5, characterized in that: The sliding rod (303) is fixedly connected to a plurality of telescopic rods (307), the telescopic ends of the telescopic rods (307) are fixedly connected to a nozzle (308), the outlet pipe (201) is connected to an auxiliary pipe five (207), and the auxiliary pipe five (207) is connected to the nozzle (308).

8. The test structure for a via in disk for processing a BGA security board according to claim 1, characterized in that: A slide groove is provided in the placement groove (101), a motor (301) is fixedly connected in the slide groove, a screw rod (302) is fixedly connected to the output end of the motor (301), the sliding rod (303) is threadedly connected to the screw rod (302), and the sliding rod (303) is slidably connected in the slide groove.

9. The test structure for a via in disk for processing a BGA security board according to claim 1, characterized in that: A filter tank (6) is fixedly connected to the mounting shell (1), and the filter tank (6) is connected to the air intake pipe (202).

10. The test structure for vias in disks used in BGA security board processing according to claim 7, characterized in that: The outlet pipe (201) is connected to an auxiliary pipe 1 (203) and an auxiliary pipe 4 (206), wherein the auxiliary pipe 1 (203) is connected to the outlet hole (102), and the auxiliary pipe 4 (206) is connected to the pneumatic rotating head (306). The auxiliary pipe 1 (203), the auxiliary pipe 2 (204), the auxiliary pipe 3 (205), the auxiliary pipe 4 (206), and the auxiliary pipe 5 (207) are all connected to electronic valves, and the auxiliary pipe 4 (206) and the auxiliary pipe 5 (207) are both telescopic hoses.

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