Test structure of in-plate hole for BGA security board processing

Abstract

The invention discloses a testing structure of a hole in a plate for BGA security plate processing, and relates to the field of security plate testing. A testing structure of an in-plate hole for BGA security board processing comprises a mounting shell, and further comprises a placing groove arranged in the mounting shell and used for placing a security board to be tested; the air pump is fixedly connected to the mounting shell, and the air inlet end and the air outlet end of the air pump are connected with an air inlet pipe and an air outlet pipe respectively; the multiple groups of air outlet holes are formed in the placement groove, and the air outlet holes are connected with an air outlet pipe; the sliding rod is connected in the placing groove in a sliding mode, and the sliding rod is located below the security and protection plate; the pneumatic rotating head is driven by the air pump, the luminescent lamp is driven to continuously rotate in a reciprocating mode, light rays are received by the light ray receiver after penetrating through the in-disc hole of the security plate, whether the in-disc hole is blocked or not can be accurately judged according to the light ray receiving stability, and efficient and accurate detection is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of security board testing, and specifically relates to a test structure for via holes in a disk for BGA security board processing. Background Art

[0002] In the field of modern security monitoring, the BGA security board, as a circuit board for security monitoring equipment using ball grid array packaging technology, plays a crucial role. During its processing, the via hole in the disk process is extremely important and quite complex. Usually, a high-precision drilling device is required to drill qualified via holes on the solder pads, which poses strict requirements on the drilling accuracy. Not only must the position of the via hole be accurate, but also indicators such as the concentricity between the via hole and the solder pad must strictly meet the standards, because these indicators directly affect the electrical performance and overall stability of the BGA security board. Once there are deviations, it may lead to malfunctions in the operation of security equipment and affect the security monitoring effect.

[0003] After the via hole in the disk is processed, detection and testing are indispensable. Currently, conventional detection methods include manual visual inspection, detection by optical detection equipment, measurement with measuring tools, and detection with a coordinate measuring machine. Among them, optical equipment detection has become a relatively commonly used detection method due to its high precision and efficiency. However, there are still many problems to be solved in the existing detection technology.

[0004] During the actual detection process, it is very easy for metal debris, resin and other impurities to adhere to the inside of the via hole in the disk. The presence of these impurities will cause blockage of the via hole in the disk, seriously affecting the detection effect. Once the via hole in the disk is blocked by impurities, the optical detection equipment may not be able to accurately obtain the true size and internal flatness information of the via hole in the disk, resulting in deviations in the detection results and being unable to detect defects in the via hole in the disk in time, thereby affecting 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 board test that can overcome 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 via holes in a disk for BGA security board processing, including an installation shell, and further including:

[0007] A placement groove, arranged in the installation shell, and the placement groove is used for placing the security board to be tested;

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

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

[0010] A sliding rod is slidably connected in the placement groove, and the sliding rod is located below the security plate;

[0011] A pneumatic rotating head is fixedly connected to the sliding rod. The output end of the pneumatic rotating head penetrates through the sliding rod, and the pneumatic rotating head is connected to the air outlet pipe;

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

[0013] A light receiver is fixedly connected in the placement groove. Through the air outlet pipe of the air pump, gas can be continuously injected into the pneumatic rotating head, and then drive the lighting lamp to continuously rotate back and forth. Then the light receiver is used to receive the light emitted by the lighting lamp through the middle hole of the security plate. When the light receiver stably receives the light emitted by the lighting lamp through the middle hole of the security plate, it indicates that the middle hole is unblocked. If the received light is unstable, it means that the middle hole may be blocked.

[0014] Further, four groups of grooves are oppositely arranged in the placement groove. Expansion air bags are connected in two groups of oppositely arranged grooves. A secondary pipe two is connected to the air outlet pipe, and the secondary pipe two is connected to the expansion air bag. An electronic valve is connected in the secondary pipe two.

[0015] Furthermore, a pressure relief pipe is connected to the expansion air bag. The expansion air bag is used to squeeze the security plate on the placement groove through the bottom surface, so as to fix it. After the two expansion air bags are inflated, they can cover the end face of the security plate.

[0016] Still further, cylinders are fixedly connected in 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] Further, a secondary pipe three is connected to the air outlet pipe, and the secondary pipe three is connected to the cylinder. An electronic valve is connected in the secondary pipe three.

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

[0019] Even further, multiple telescopic rods are fixedly connected to the sliding rod. A jet head is fixedly connected to the telescopic end of the telescopic rod. A secondary pipe five is connected to the air outlet pipe, and the secondary pipe five is connected to the jet head.

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

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

[0022] Still further, a first auxiliary pipe and a fourth auxiliary pipe are connected to the outlet pipe. The first auxiliary pipe is connected to the air outlet hole, the fourth auxiliary pipe is connected to the pneumatic rotating head. Electric valves are connected in the first auxiliary pipe, the second auxiliary pipe, the third auxiliary pipe, the fourth auxiliary pipe, and the fifth auxiliary pipe. The fourth auxiliary pipe and the fifth auxiliary pipe are both telescopic hoses.

[0023] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention drives the pneumatic rotating head through an air pump to drive the light-emitting lamp to continuously rotate back and forth. After the light passes through the middle hole of the security plate, it is received by the light receiver. According to the stability of the light reception, it can accurately judge whether there is a blockage in the middle hole, realizing efficient and accurate detection;

[0024] In addition, through the setting of the air outlet hole, the air pressure in the bottom space of the security plate is increased, and the gas naturally flows through the middle hole to achieve preliminary cleaning. The air jet head on the sliding rod can perform targeted air jet on the middle hole under the flexible adjustment of the telescopic rod, further removing tiny impurities and significantly reducing the interference of impurities on the detection result;

[0025] The cylinder drives the knocking rod to generate knocking vibration, which acts on the fixed security plate. This vibration can make the impurities with weak adhesion fall off, reduce the interference of impurities, and further improve the accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In the drawings:

[0027] Figure 1 is a schematic structural diagram of a test structure for the middle hole of a BGA security plate processing proposed by the present invention Figure 1 ;

[0028] Figure 2 is a schematic structural diagram of a test structure for the middle hole of a BGA security plate processing proposed by the present invention Figure 2 ;

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

[0030] Figure 4 is a schematic structural diagram of the placement groove in a test structure for the middle hole of a BGA security plate processing proposed by the present inventionFigure 2 ;

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

[0032] Figure 6 This is a test structure for the middle hole in the processing of a BGA security board proposed by the present invention Figure 5 Schematic diagram of the structure of part A;

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

[0034] Figure 8 This is a test structure for the middle hole in the processing of a BGA security board proposed by the present invention Figure 7 Schematic diagram of the structure of part B;

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

[0036] In the figure: 1. Installation shell; 101. Placement groove; 102. Air outlet hole; 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. Lead screw, 303. Slide bar, 304. Light-emitting lamp; 305. Rotating shaft; 306. Pneumatic rotating head; 307. Telescopic rod, 308. Jet head; 4. Expansion airbag; 401. Pressure relief pipe; 501. Cylinder; 502. Knocking rod; 503. Partition board; 6. Filter tank. Specific embodiments

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying 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] Embodiment:

[0039] Refer to Figures 1-5, A test structure for the via holes in the middle of a BGA security board during processing, including an installation shell 1, and further including: a placement groove 101 provided inside the installation shell 1 for placing the security board to be tested; an air pump 2 fixedly connected to the installation shell 1, with an intake pipe 202 and an outlet pipe 201 respectively connected to the intake end and the outlet end of the air pump 2; multiple groups of air outlet holes 102 all provided in the placement groove 101, and the air outlet holes 102 are connected to the outlet pipe 201; a sliding rod 303 slidably connected in the placement groove 101, and the sliding rod 303 is 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 penetrates through the sliding rod 303, and the pneumatic rotating head 306 is connected to the outlet pipe 201; a lighting lamp 304 rotatably connected inside the sliding rod 303, and the lighting 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. Through the air outlet pipe 201 of the air pump 2, gas can be continuously injected into the pneumatic rotating head 306, and then drive the illuminating lamp 304 to continuously reciprocate. Subsequently, the light receiver 103 is used to receive the light emitted by the illuminating lamp 304 through the middle hole in the security plate. When the light receiver 103 stably receives the light emitted by the illuminating lamp 304 through the middle hole in the security plate, it indicates that the middle hole is unobstructed. If the received light is unstable, it means that the middle hole may be blocked. There are four groups of grooves oppositely arranged in the placement groove 101. An expansion airbag 4 is connected in two of the oppositely arranged grooves. A secondary pipe two 204 is connected to the air outlet pipe 201, and the secondary pipe two 204 is connected to the expansion airbag 4. An electronic valve is connected in the secondary pipe two 204. 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 groove 101 through the bottom surface, thereby fixing it. And after the two expansion airbags 4 are inflated, they can cover the end surface of the security plate. In the other two grooves, a cylinder 501 is fixedly connected. A knocking rod 502 is fixedly connected to the telescopic end of the cylinder 501. A pressure relief port is connected to the cylinder 501. The knocking rod 502 is used to knock the side of the security plate. A secondary pipe three 205 is connected to the air outlet pipe 201, and the secondary pipe three 205 is connected to the cylinder 501. An electronic valve is connected in the secondary pipe three 205. A partition 503 is fixedly connected in the groove where the cylinder 501 is arranged. 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. A jet head 308 is fixedly connected to the telescopic end of the telescopic rod 307. A secondary pipe five 207 is connected to the air outlet pipe 201, and the secondary pipe five 207 is connected to the jet head 308. A sliding groove is arranged in the placement groove 101. A motor 301 is fixedly connected in the sliding groove. A lead screw 302 is fixedly connected to the output end of the motor 301. The sliding rod 303 is threadedly connected to the lead screw 302. The sliding rod 303 is slidably connected in the sliding groove. A filter tank 6 is fixedly connected to the mounting shell 1. The filter tank 6 is connected to the air inlet pipe 202. A secondary pipe one 203 and a secondary pipe four 206 are connected to the air outlet pipe 201. The secondary pipe one 203 is connected to the air outlet hole 102. The secondary pipe four 206 is connected to the pneumatic rotating head 306. Electronic valves are connected in the secondary pipe one 203, the secondary pipe two 204, the secondary pipe three 205, the secondary pipe four 206, and the secondary pipe five 207. The secondary pipe four 206 and the secondary pipe five 207 are both telescopic hoses.;

[0040] Before use, first initialize and calibrate the entire optical detection system, check whether the illuminating lamp 304 lights up normally and whether its light intensity meets the preset standard. Calibrate the light receiver 103 through a standard template to ensure that it can accurately receive light and convert the optical signal into an electrical signal. At the same time, check whether the motor 301, the lead screw 302, and the sliding rod 303 operate smoothly to ensure that the sliding rod 303 can accurately move to the preset detection position;

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

[0042] When this 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 air outlet pipe 201 first enters the expansion airbag 4 through the auxiliary pipe two 204. The expansion airbag 4 then expands and extends out of the groove, thereby squeezing the security plate in the placement groove 101 to fix it. At this time, the extended expansion airbag 4 only plays a fixing role and does not block the plate middle hole. Subsequently, a part of the gas enters the air outlet hole 102 through the auxiliary pipe one 203. The air outlet holes 102 are evenly distributed in the placement groove 101. A large amount of gas is ejected from the air outlet holes 102, causing the air pressure in the space under the security plate to increase rapidly. Under the action of the air pressure difference, the gas naturally flows through the plate middle hole of the security plate to preliminarily clean the plate middle hole and blow out some loose impurities. At the same time, this process can also detect the air permeability of the plate middle hole. If it is found that the air pressure in a certain area is abnormal, it may mean that there is a blockage or abnormal situation in the plate middle hole in this area, providing clues for subsequent detailed detection. At this time, a pressure sensor needs to be set in the placement groove 101. This device does not set a pressure sensor and only performs cleaning through this function without detecting the air pressure.

[0043] Start the motor 301. The motor 301 is fixed in the sliding groove in the placement groove 101, and its output end drives the lead screw 302 to rotate. The sliding rod 303 is threadedly connected to the lead screw 302 and can slide in the sliding groove. As the lead screw 302 rotates, the sliding rod 303 moves linearly under the security plate to adjust to a suitable detection position. At this time, control the electronic valve in the auxiliary pipe four 206 to open. The gas in the air outlet pipe 201 enters the pneumatic rotary head 306 through the auxiliary pipe four 206. The pneumatic rotary head 306 is fixed on the sliding rod 303, and its output end penetrates the sliding rod 303. Driven by the gas, the output end of the pneumatic rotary head 306 starts to rotate, driving the fixedly connected light-emitting lamp 304 to continuously rotate back and forth. The light receiver 103 is fixed in the placement groove 101 and is used to receive the light emitted by the light-emitting lamp 304 passing through the plate middle hole on the security plate. When the light receiver 103 stably receives the light, it indicates that the plate middle hole is unblocked; if the received light is unstable or the light cannot be received, it means that there may be a blockage or other defects in the plate middle hole, and record the position information for subsequent further inspection and processing.

[0044] Control the electronic valve in the fourth auxiliary pipe 206 to open. The gas in the air outlet pipe 201 enters the pneumatic rotating head 306 through the fourth auxiliary pipe 206. The pneumatic rotating head 306 is fixed on the sliding rod 303, and its output end penetrates through the sliding rod 303. Driven by the gas, the output end of the pneumatic rotating head 306 starts to rotate at a stable speed, driving the fixedly connected lighting lamp 304 to continuously reciprocate. The light emitted by the lighting lamp 304 is divergent. After passing through the middle hole in the plate on the security plate, part of the light is received by the light receiver 103. The light receiver 103 is fixed in the placement groove 101, and its receiving surface corresponds to the light emission direction of the lighting lamp 304, and can efficiently receive the light passing through the middle hole in the plate.

[0045] The light receiver 103 converts the received optical signal into an electrical signal and transmits it to the signal processing unit. The signal processing unit amplifies, filters, etc. the received electrical signal to remove noise interference and improve the signal quality. Then, according to a preset algorithm, the processed signal is analyzed to judge the stability and intensity change of the light. If the light intensity is stable and within the normal range, it indicates that the middle hole in the plate is unobstructed; if the light intensity fluctuates or is lower than the preset threshold, it indicates that there may be blockage or other defects in the middle hole in the plate. For the middle holes with abnormalities, record their coordinate positions on the security plate and the corresponding signal characteristics for further analysis and processing later.

[0046] After completing the detection of one detection position, the motor 301 starts again. According to the preset detection path and step size, it drives the lead screw 302 to rotate, causing the sliding rod 303 to move to the next detection position, and repeats the above steps of lighting, light reception, signal processing and analysis to detect all the middle holes in the security plate one by one. During the detection process, the detection progress and the status information of the detected middle holes are displayed in real time, which is convenient for the operator to monitor the detection process.

[0047] During the optical detection, in order to further ensure the accuracy of the detection, the middle holes in the plate are deeply cleaned and vibration detected. Control the electronic valve in the fifth auxiliary pipe 207 to open. The gas in the air outlet pipe 201 enters the jet head 308 through the fifth auxiliary pipe 207. The jet head 308 is fixed at the telescopic end of the telescopic rod 307, and the telescopic rod 307 is fixed on the sliding rod 303. By adjusting the length of the telescopic rod 307, the jet head 308 can be aligned with the middle hole in the plate. High-pressure gas is ejected from the jet head 308 to specifically clean the middle hole in the plate and remove those tiny impurities adhering to the hole wall.

[0048] In addition, the electronic valve in the auxiliary pipe three 205 is controlled to open, and the gas in the air 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 groove 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 a reciprocating motion, driving the knocking rod 502 to continuously knock the partition plate 503. The partition plate 503 is fixed in the groove where the cylinder 501 is arranged, and it transmits the knocking vibration of the knocking rod 502 to the security plate. This kind of vibration can make some impurities that are not firmly adhered on the security plate fall off, and at the same time simulate the vibration environment that the security plate may receive during actual use. During the vibration process, continuously observe the situation of the light receiver 103 receiving light. If the light reception of the originally normally detected middle hole in the plate becomes abnormal after vibration, it indicates that there are potential problems with this middle hole under the vibration condition, and further analysis and processing are required.

[0049] After completing all the detection steps, turn off the air pump 2, close the electronic valves in each auxiliary pipe in sequence, open the pressure relief pipe 401 on the expansion air bag 4, and release the gas in the expansion air bag 4 to make it contract. At this time, the detected security plate can be easily taken out from the placement groove 101, and the detection results are sorted out and analyzed. For the security plates detected with problems, they are marked and classified for subsequent repair or scrapping treatment.

[0050] Furthermore, the expansion air bag 4 in this device can adopt an air bag with high stretching ability, that is, after being inflated, it can become longer. At this time, when injecting gas into the expansion air bag 4, the expansion air bag 4 expands accordingly, and then squeezes the top surface of the security plate, thereby blocking some of the middle holes. In this way, it can reduce the number of air outlet holes and achieve a pressurizing effect, making the cleaning effect on the middle holes better and reducing the residue of impurities in the middle holes.

[0051] In the present invention, the air pump 2 drives the pneumatic rotating head 306 to drive the light-emitting lamp 304 to continuously rotate reciprocally. After the light passes through the middle holes of the security plate, it is received by the light receiver. According to the stability of the light reception, it can accurately judge whether there is a blockage in the middle holes, achieving efficient and accurate detection.

[0052] In addition, through the setting of the air outlet holes 102, the air pressure in the bottom space of the security plate is increased, and the gas naturally flows through the middle holes to achieve preliminary cleaning. And the air jet head 308 on the sliding rod 303 can perform targeted air jet on the middle holes under the flexible adjustment of the telescopic rod 307, further removing tiny impurities and significantly reducing the interference of impurities on the detection results.

[0053] The knocking rod 502 is driven by the cylinder 501 to generate knocking vibration, which acts on the fixed security plate. This kind of vibration can make the impurities that are not firmly adhered fall off, reduce the interference of impurities, and further improve the accuracy of the detection results.

[0054] The above are only the preferred embodiments of the present invention, and there is no limitation to the present invention in any form. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of the present invention can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content prompted above within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A test structure for via holes in a BGA security board during processing, including a mounting shell (1), characterized in that, It further includes: A placement groove (101) is provided inside the installation shell (1), and the placement groove (101) is used for placing the security board to be tested; An air pump (2) is fixedly connected to the installation shell (1), and an intake pipe (202) and an outlet pipe (201) are respectively connected to the intake end and the outlet end of the air pump (2); Multiple groups of air outlet holes (102) are all provided inside the placement groove (101), and the air outlet holes (102) are connected to the outlet pipe (201); A sliding rod (303) is slidably connected inside the placement groove (101), and the sliding rod (303) is located below the security board; A pneumatic rotating head (306) is fixedly connected to the sliding rod (303), the output end of the pneumatic rotating head (306) penetrates through the sliding rod (303), and the pneumatic rotating head (306) is connected to the outlet pipe (201); A lighting lamp (304) is rotatably connected inside the sliding rod (303), and the lighting lamp (304) is fixedly connected to the output end of the pneumatic rotating head (306); A light receiver (103) is fixedly connected inside the placement groove (101). Through the outlet pipe (201) of the air pump (2), gas can be continuously injected into the pneumatic rotating head (306), and then drive the lighting lamp (304) to continuously rotate back and forth. Then, the light receiver (103) is used to receive the light emitted by the lighting lamp (304) passing through the middle hole of the security board. When the light receiver (103) stably receives the light emitted by the lighting lamp (304) passing through the middle hole of the security board, it indicates that the middle hole is unobstructed. If the received light is unstable, it means that the middle hole may be blocked.

2. The test structure of the via hole in the BGA security board processing tray according to claim 1, characterized in that, Four groups of grooves are oppositely arranged inside the placement groove (101). An expansion airbag (4) is connected between two groups of oppositely arranged grooves. An auxiliary pipe two (204) is connected to the outlet pipe (201), and the auxiliary pipe two (204) is connected to the expansion airbag (4). An electronic valve is connected inside the auxiliary pipe two (204).

3. The test structure of the via hole in the BGA security board processing tray according to claim 2, characterized in that, A pressure relief pipe (401) is connected to the expansion airbag (4). The expansion airbag (4) is used to squeeze the security board on the placement groove (101) through the bottom surface, thereby fixing it. After the two groups of expansion airbags (4) are inflated, they can cover the end face of the security board.

4. The test structure of the via hole in the BGA security board processing tray according to claim 3, characterized in that, Cylinders (501) are fixedly connected inside the other two groups of grooves. A knocking rod (502) is fixedly connected to the telescopic end of the cylinder (501). A pressure relief port is connected to the cylinder (501), and the knocking rod (502) is used to knock the side of the security board.

5. The test structure of the via hole in the BGA security board processing tray according to claim 4, characterized in that, An auxiliary pipe three (205) is connected to the outlet pipe (201), and the auxiliary pipe three (205) is connected to the cylinder (501). An electronic valve is connected inside the auxiliary pipe three (205).

6. The test structure of the via hole in the BGA security board processing tray according to claim 5, characterized in that, A partition (503) is fixedly connected inside the groove provided with the cylinder (501). The partition (503) is used to receive the knocking of the knocking rod (502) and transmit the vibration to the security board.

7. The test structure for the via holes in the BGA security board processing according to claim 5, characterized in that, A plurality of telescopic rods (307) are fixedly connected to the sliding rod (303), a jet head (308) is fixedly connected to the telescopic end of the telescopic rod (307), a fifth auxiliary pipe (207) is connected to the air outlet pipe (201), and the fifth auxiliary pipe (207) is connected to the jet head (308).

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

9. The test structure of the via hole in the BGA security board processing used 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 inlet pipe (202).

10. The test structure of the via hole in the BGA security board processing tray according to claim 7, characterized in that, A first auxiliary pipe (203) and a fourth auxiliary pipe (206) are connected to the air outlet pipe (201), the first auxiliary pipe (203) is connected to the air outlet hole (102), the fourth auxiliary pipe (206) is connected to the pneumatic rotating head (306), electronic valves are connected in the first auxiliary pipe (203), the second auxiliary pipe (204), the third auxiliary pipe (205), the fourth auxiliary pipe (206), and the fifth auxiliary pipe (207), and the fourth auxiliary pipe (206) and the fifth auxiliary pipe (207) are both telescopic hoses.

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