Circuit board performance test device and test method

Abstract

The invention relates to the technical field of circuit board testing, in particular to a circuit board performance testing device and method. A circuit board is installed in the ICT online test equipment, a detection module used for detecting the circuit board is arranged above the circuit board, a multidirectional moving mechanism is fixedly connected to the bottom of the fixing plate, and a marking mechanism is fixedly connected to the bottom of the multidirectional moving mechanism. The device comprises a fixing plate, a multidirectional moving mechanism is arranged on the fixing plate, fixing rods fixedly connected with the fixing plate are arranged on the two sides of the multidirectional moving mechanism, a hollowed-out plate is fixedly connected to the bottom of each fixing rod, and positioning rods are fixedly connected to the two sides of the bottom of each hollowed-out plate. A hydraulic rod is started to drive a buffer frame to move, the buffer frame drives an internal sliding plate to move, a second magnet and a marking pen move downwards, the marking pen marks a fault area, the fault area is very conspicuous, and follow-up precise maintenance work is very convenient.

Description

Technical Field

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

[0002] The names of circuit boards include: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin circuit boards, printed (copper etching technology) circuit boards, etc. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layouts.

[0003] When testing circuit boards, the ICT online tester is often used to detect open circuits, short circuits, missing parts, reverse parts and various process problems of the circuit boards. The circuit board is placed inside the online tester and the detection mechanism is moved down. At this time, online detection can be achieved. Although this detection method can detect the fault condition of the circuit board and display it on the computer, it does not have a marking mechanism. The staff only knows which area has a fault. In actual maintenance, it takes time to find the fault area, which is time-consuming. Therefore, a circuit board performance testing device and a testing method are proposed to address the above problems. Summary of the invention

[0004] The object of the present invention is to provide a circuit board performance testing device and a testing method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: a circuit board performance testing device and a testing method, comprising an ICT online testing device, a circuit board and a detection module; A circuit board is installed inside the ICT online testing device, and a detection module for detecting the circuit board is arranged above the circuit board; The detection module includes a fixed plate, a multi-directional movable mechanism, a marking mechanism, an air pump, a cleaning mechanism, a positioning rod and a fixed rod, the bottom of the fixed plate is fixedly connected to the multi-directional movable mechanism, and the bottom of the multi-directional movable mechanism is fixedly connected to the marking mechanism, both sides of the multi-directional movable mechanism are provided with fixed rods fixedly connected to the fixed plate, and the bottom of the fixed rod is fixedly connected to a hollow plate, the two sides of the bottom of the hollow plate are fixedly connected to the positioning rods, and the bottom of the hollow plate is installed with a detection probe; A cleaning mechanism is provided on the rear side of the hollow plate, and the top of the cleaning mechanism is fixedly connected to the fixed plate. The outside of the cleaning mechanism is connected to an air pipe, and the other end of the air pipe is connected to an air pump. The outside of the air pump is fixedly connected to the ICT online testing equipment.

[0006] Furthermore, the marking mechanism includes a mounting frame, a hydraulic rod and a buffer frame, the top of the mounting frame is fixedly connected to the multi-directional movable mechanism, the interior of the mounting frame is fixedly connected to the hydraulic rod, the free end of the hydraulic rod is fixedly connected to the buffer frame, the interior of the buffer frame is slidably connected to a sliding plate, the interior of the sliding plate is fixedly connected to a first magnet, a second magnet is provided on one side of the first magnet, and the other end of the second magnet is fixedly connected to a marking pen.

[0007] Furthermore, the buffer frame is internally fixedly connected with limit blocks, and the limit blocks are in two groups, and the limit blocks are symmetrically arranged.

[0008] Furthermore, a first spring is fixedly connected to one side of the sliding plate, and the other end of the first spring is fixedly connected to the buffer frame.

[0009] When testing circuit boards, the ICT online tester is often used to detect open circuits, short circuits, missing parts, reverse parts and various process problems on the circuit boards. The circuit board is placed inside the online tester and the detection mechanism is moved down. At this time, online detection can be achieved. Although this detection method can detect the fault condition of the circuit board and display it on the computer, it does not have a marking mechanism. The staff only knows which area has a fault. In actual maintenance, it takes time to find the fault area, which is time-consuming. When in use, once the ICT online testing equipment tests the circuit board and detects the fault area, the marking mechanism can be driven to move above the corresponding area through the multi-directional moving mechanism, and the buffer frame can be driven to move by starting the hydraulic rod. The buffer frame drives the internal sliding plate to move. At this time, the second magnet and the marking pen can be moved down, and the marking pen marks the fault area, making the fault area very conspicuous and very convenient for subsequent precise maintenance work.

[0010] Furthermore, the multi-directional movable mechanism includes a transverse frame, a first motor and a first threaded shaft, the outer side of the transverse frame is fixedly connected to the fixed plate, the interior of the transverse frame is fixedly connected to the first motor, the end of the main shaft of the first motor is fixedly connected to the first threaded shaft, the outer side of the first threaded shaft is spirally connected to the first threaded sleeve, the outer side of the first threaded sleeve is fixedly connected to a moving block, the other side of the moving block is fixedly connected to a longitudinal frame, the interior of the longitudinal frame is fixedly connected to the second motor, the end of the main shaft of the second motor is fixedly connected to the second threaded shaft, the outer side of the second threaded shaft is spirally connected to the second threaded sleeve, the outer side of the second threaded sleeve is fixedly connected to a connecting plate, and the bottom of the connecting plate is fixedly connected to the marking mechanism.

[0011] The first motor drives the first threaded shaft to rotate, the first threaded shaft drives the first threaded sleeve to move, the first threaded sleeve drives the moving block to move, and the moving block drives the longitudinal frame to move. At this time, the lateral position adjustment is realized, and the second motor drives the second threaded shaft to rotate, the second threaded shaft drives the second threaded sleeve to rotate, and the second threaded sleeve drives the lower connecting plate to move. The connecting plate can drive the marking mechanism to move. At this time, the longitudinal position adjustment can be realized. At this time, it can be ensured that the marking mechanism can be adjusted in multiple directions so that it is located in the fault area and performs marking work.

[0012] Furthermore, the cleaning mechanism includes a cleaning frame, a third motor and a third threaded shaft, the interior of the cleaning frame is fixedly connected to the third motor, and the third threaded shaft is fixedly connected to the end of the main shaft of the third motor, the outer side of the third threaded shaft is spirally connected to a third threaded sleeve, the outer side of the third threaded sleeve is fixedly connected to a hollow tube, the outer side of the hollow tube is slidably connected to the cleaning frame, the outer side of the hollow tube is connected to multiple groups of cleaning tubes, and the outer side of the hollow tube is connected to the air pipe.

[0013] Furthermore, the cleaning pipe is arranged at an angle.

[0014] Furthermore, the cleaning frame is internally slidably connected to a limit plate, and the top of the limit plate is fixedly connected to a guide rod, the top of the guide rod is fixedly connected to the fixed plate, a second spring is provided on the outer side of the guide rod, one side of the second spring is fixedly connected to the fixed plate, and the other end of the second spring is fixedly connected to the cleaning frame.

[0015] When testing a circuit board, sometimes there is a layer of dust attached to the surface of the circuit board, which makes it inconvenient to perform subsequent tests. By pre-starting the third motor to drive the third threaded shaft to rotate, the third threaded shaft drives the third threaded sleeve to move, and the third threaded sleeve drives the hollow tube and the cleaning tube to move, and starting the air pump at the same time, the air can be discharged through the cleaning tube. At this time, the surface of the circuit board can be cleaned to ensure the quality of subsequent circuit board testing.

[0016] Further, the test method is as follows: Step 1: Place the circuit board on the placement rack inside the ICT online test equipment; Step 2: Start the ICT online test equipment so that it drives the detection module to move downward. At this time, the fixed plate inside the detection module drives the fixed rod to move downward, the fixed rod drives the hollow plate to move downward, and the hollow plate drives the positioning rod below to move downward to achieve precise positioning; Step 3: Conduct testing by contacting the circuit board surface with multiple sets of detection heads under the hollow board; Step 4: If there is a lot of dust on the surface of the circuit board, start the air pump and cleaning mechanism in advance to clean the surface of the circuit board; Step 5: During the test, once a faulty area is detected, the marking mechanism is driven to move by starting the multi-directional moving mechanism, and the marking mechanism can then mark the faulty area.

[0017] Compared with the prior art, the present invention has the following beneficial effects: When the present invention is in use, once the ICT online testing equipment detects a fault area when testing a circuit board, the marking mechanism can be driven to move above the corresponding area by the multi-directional moving mechanism, and the buffer frame can be driven to move by starting the hydraulic rod, and the buffer frame drives the internal sliding plate to move, and then the second magnet and the marking pen can be moved down, and the marking pen marks the fault area, making the fault area very conspicuous, which is very convenient for subsequent precise maintenance work; The first motor drives the first threaded shaft to rotate, the first threaded shaft drives the first threaded sleeve to move, the first threaded sleeve drives the moving block to move, the moving block drives the longitudinal frame to move, and the lateral position adjustment is achieved at this time, and the second motor drives the second threaded shaft to rotate, the second threaded shaft drives the second threaded sleeve to rotate, the second threaded sleeve drives the lower connecting plate to move, and the connecting plate can drive the marking mechanism to move, and the longitudinal position adjustment can be achieved at this time, and the marking mechanism can be ensured to achieve multi-directional adjustment, so that it is located in the fault area and performs marking work; When testing the circuit board, sometimes there is a layer of dust on the surface of the circuit board, which makes it inconvenient to carry out subsequent testing. By starting the third motor in advance to drive the third threaded shaft to rotate, the third threaded shaft drives the third threaded sleeve to move, and the third threaded sleeve drives the hollow tube and the cleaning tube to move, and starting the air pump at the same time, the air can be discharged through the cleaning tube, and the surface of the circuit board can be cleaned at this time to ensure the quality of subsequent testing of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a circuit board performance testing device and a testing method; Figure 2 It is a schematic diagram of the structure of a circuit board performance testing device and a testing method detection module; Figure 3 It is a schematic diagram of the structure of a circuit board performance testing device and a multi-directional moving mechanism of a testing method; Figure 4 It is a schematic diagram of the structure of a circuit board performance testing device and a testing method marking mechanism; Figure 5 The present invention is a schematic diagram of the structure of a circuit board performance testing device and a cleaning mechanism of a testing method.

[0019] In the figure: 1, test equipment; 2, circuit board; 3, detection module; 4, fixing plate; 5, multi-directional moving mechanism; 501, horizontal frame; 502, first motor; 503, first threaded shaft; 504, first threaded sleeve; 505, moving block; 506, longitudinal frame; 507, second motor; 508, second threaded shaft; 509, second threaded sleeve; 510, connecting plate; 6, marking mechanism; 601, mounting frame; 602, hydraulic rod; 603, buffer frame; 604 , sliding plate; 605, first magnet; 606, second magnet; 607, marking pen; 608, limit block; 609, first spring; 7, air pump; 8, cleaning mechanism; 801, cleaning frame; 802, third motor; 803, third threaded shaft; 804, third threaded sleeve; 805, hollow tube; 806, cleaning tube; 807, guide rod; 808, second spring; 809, limit plate; 9, positioning rod; 10, fixing rod; 11, air pipe; 12, hollow plate. DETAILED DESCRIPTION

[0020] Example 1: Please refer to Figure 1 , Figure 2 and Figure 4 , the present invention provides a technical solution: A circuit board performance testing device and testing method, comprising an ICT online testing device 1, a circuit board 2 and a detection module 3; A circuit board 2 is installed inside the above-mentioned ICT online testing device 1, and a detection module 3 for detecting the circuit board 2 is arranged above the circuit board 2; The detection module 3 comprises a fixed plate 4, a multi-directional movable mechanism 5, a marking mechanism 6, an air pump 7, a cleaning mechanism 8, a positioning rod 9 and a fixed rod 10. The bottom of the fixed plate 4 is fixedly connected to the multi-directional movable mechanism 5, and the bottom of the multi-directional movable mechanism 5 is fixedly connected to the marking mechanism 6. Both sides of the multi-directional movable mechanism 5 are provided with fixed rods 10 fixedly connected to the fixed plate 4, and the bottom of the fixed rods 10 is fixedly connected to a hollow plate 12, the two sides of the bottom of the hollow plate 12 are fixedly connected to the positioning rods 9, and the bottom of the hollow plate 12 is installed with a detection probe; A cleaning mechanism 8 is provided on the rear side of the hollow plate 12, and the top of the cleaning mechanism 8 is fixedly connected to the fixed plate 4. The outer side of the cleaning mechanism 8 is connected to an air pipe 11, and the other end of the air pipe 11 is connected to an air pump 7. The outer side of the air pump 7 is fixedly connected to the ICT online testing equipment 1.

[0021] The marking mechanism 6 comprises a mounting frame 601, a hydraulic rod 602 and a buffer frame 603. The top of the mounting frame 601 is fixedly connected to the multi-directional movable mechanism 5. The interior of the mounting frame 601 is fixedly connected to the hydraulic rod 602. The free end of the hydraulic rod 602 is fixedly connected to the buffer frame 603. The interior of the buffer frame 603 is slidably connected to a sliding plate 604. The interior of the sliding plate 604 is fixedly connected to a first magnet 605. A second magnet 606 is arranged on one side of the first magnet 605, and a marking pen 607 is fixedly connected to the other end of the second magnet 606.

[0022] The buffer frame 603 is internally fixedly connected with limit blocks 608 , and the limit blocks 608 are in two groups, and the limit blocks 608 are symmetrically arranged.

[0023] A first spring 609 is fixedly connected to one side of the sliding plate 604 , and the other end of the first spring 609 is fixedly connected to the buffer frame 603 .

[0024] The above test method is as follows: Step 1: Place the circuit board 2 on a placement rack inside the ICT online testing equipment 1; Step 2: Start the ICT online test device 1 so that the ICT online test device 1 drives the detection module 3 to move downward. At this time, the fixed plate 4 inside the detection module 3 drives the fixed rod 10 to move downward, the fixed rod 10 drives the hollow plate 12 to move downward, and the hollow plate 12 drives the positioning rod 9 below to move downward, so as to achieve precise positioning; Step 3: Conduct testing by contacting the surface of the circuit board 2 with the multiple groups of detection heads under the hollow plate 12; Step 4: In case that there is a lot of dust on the surface of the circuit board 2, the surface of the circuit board 2 can be cleaned by starting the air pump 7 and the cleaning mechanism 8 in advance; Step 5: During the test, once a faulty area is found, the marking mechanism 6 is driven to move by starting the multi-directional moving mechanism 5, and the marking mechanism 6 can mark the faulty area.

[0025] When testing circuit boards, the commonly used ICT online detector is used to detect open circuits, short circuits, missing parts, reverse parts, and various process problems of the circuit boards. The circuit board is placed inside the online detector, and the detection mechanism is moved downward. At this time, online detection can be achieved. Although this detection method can detect the fault condition of the circuit board and display it on the computer, it does not have a marking mechanism. The staff only knows which area has a fault. In actual maintenance, it takes time to find the fault area, which is relatively time-consuming. When in use, once the ICT online test equipment 1 tests the circuit board 2 and detects the fault area, the marking mechanism 6 can be driven by the multi-directional moving mechanism 5 to move above the corresponding area, and the buffer frame 603 is driven to move by starting the hydraulic rod 602. The buffer frame 603 drives the internal sliding plate 604 to move. At this time, the second magnet 606 and the marking pen 607 can be moved downward, and the marking pen 607 marks the fault area, making the fault area very conspicuous, which is very convenient for subsequent precise maintenance work; In this embodiment, the setting of the hollow plate 12 facilitates the downward movement of the marking pen 607 and marks the fault area, which is convenient for the staff to carry out subsequent maintenance. At the same time, the setting of the first magnet 605 and the second magnet 606 can fix the marking pen 607, which is convenient for replacement. The disassembly can be completed by simply pulling the marking pen 607 downward. The setting of the limit block 608 can prevent the sliding plate 604 from moving downward excessively, which facilitates the disassembly of the marking pen 607. The setting of the first spring 609 can make the marking pen 607 have a certain buffering effect. When touching the device on the surface of the circuit board 2, it can effectively buffer and achieve effective marking.

[0026] Example 2: This example is an improvement on Example 1. Figure 3 Specifically, the multi-directional moving mechanism 5 includes a transverse frame 501, a first motor 502 and a first threaded shaft 503. The outer side of the transverse frame 501 is fixedly connected to the fixed plate 4, the inner side of the transverse frame 501 is fixedly connected to the first motor 502, the spindle end of the first motor 502 is fixedly connected to the first threaded shaft 503, the outer side of the first threaded shaft 503 is spirally connected to the first threaded sleeve 504, the outer side of the first threaded sleeve 504 is fixedly connected to a moving block 505, the other side of the moving block 505 is fixedly connected to a longitudinal frame 506, the inner side of the longitudinal frame 506 is fixedly connected to the second motor 507, the spindle end of the second motor 507 is fixedly connected to the second threaded shaft 508, the outer side of the second threaded shaft 508 is spirally connected to the second threaded sleeve 509, the outer side of the second threaded sleeve 509 is fixedly connected to a connecting plate 510, and the bottom of the connecting plate 510 is fixedly connected to the marking mechanism 6.

[0027] The first motor 502 drives the first threaded shaft 503 to rotate, the first threaded shaft 503 drives the first threaded sleeve 504 to move, the first threaded sleeve 504 drives the moving block 505 to move, and the moving block 505 drives the longitudinal frame 506 to move, at this time, the horizontal position adjustment is realized, and the second motor 507 drives the second threaded shaft 508 to rotate, the second threaded shaft 508 drives the second threaded sleeve 509 to rotate, and the second threaded sleeve 509 drives the lower connecting plate 510 to move, and the connecting plate 510 can drive the marking mechanism 6 to move, at this time, the longitudinal position adjustment can be realized, and at this time, it can be ensured that the marking mechanism 6 can be adjusted in multiple directions so that it is located in the fault area and performs the marking work.

[0028] Example 3: This example is an improvement on Example 2. Figure 5 Specifically, the cleaning mechanism 8 includes a cleaning frame 801, a third motor 802 and a third threaded shaft 803. The third motor 802 is fixedly connected to the inside of the cleaning frame 801, and the third threaded shaft 803 is fixedly connected to the end of the main shaft of the third motor 802. The outer side of the third threaded shaft 803 is spirally connected to the third threaded sleeve 804. The outer side of the third threaded sleeve 804 is fixedly connected to a hollow tube 805. The outer side of the hollow tube 805 is slidably connected to the cleaning frame 801. The outer side of the hollow tube 805 is connected to multiple groups of cleaning tubes 806, and the outer side of the hollow tube 805 is connected to the air pipe 11.

[0029] The cleaning pipe 806 is arranged at an angle.

[0030] The cleaning frame 801 is internally slidably connected to a limiting plate 809, and the top of the limiting plate 809 is fixedly connected to a guide rod 807, the top of the guide rod 807 is fixedly connected to the fixed plate 4, a second spring 808 is arranged on the outer side of the guide rod 807, one side of the second spring 808 is fixedly connected to the fixed plate 4, and the other end of the second spring 808 is fixedly connected to the cleaning frame 801.

[0031] When testing the circuit board 2, sometimes there is a layer of dust attached to the surface of the circuit board 2, which makes it inconvenient to perform subsequent tests. The third motor 802 is started in advance to drive the third threaded shaft 803 to rotate, the third threaded shaft 803 drives the third threaded sleeve 804 to move, and the third threaded sleeve 804 drives the hollow tube 805 and the cleaning tube 806 to move. At the same time, the air pump 7 is started. At this time, the air can be discharged through the cleaning tube 806. At this time, the surface of the circuit board 2 can be cleaned to ensure the quality of subsequent testing of the circuit board 2. In this embodiment, the air pump 7 transports air to the inside of the hollow tube 805 through the air pipe 11, and then discharges the air through multiple groups of cleaning tubes 806, and the cleaning tubes 806 are arranged at an angle to ensure the cleaning quality of the circuit board 2. In actual use, when the cleaning frame 801 is in contact with the circuit board 2 or other devices, the cleaning frame 801 can move up and squeeze the second spring 808, and the cleaning frame 801 can stably adjust its height up and down under the action of the limit plate 809 and the guide rod 807, ensuring that the cleaning frame 801 can be used normally.

[0032] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A circuit board performance testing device, characterized in that: It includes an ICT online testing device (1), a circuit board (2) and a detection module (3); A circuit board (2) is installed inside the ICT online testing device (1), and a detection module (3) for detecting the circuit board (2) is arranged above the circuit board (2); The detection module (3) comprises a fixed plate (4), a multi-directional movable mechanism (5), a marking mechanism (6), an air pump (7), a cleaning mechanism (8), a positioning rod (9) and a fixed rod (10); the bottom of the fixed plate (4) is fixedly connected to the multi-directional movable mechanism (5), and the bottom of the multi-directional movable mechanism (5) is fixedly connected to the marking mechanism (6); fixed rods (10) fixedly connected to the fixed plate (4) are arranged on both sides of the multi-directional movable mechanism (5), and the bottom of the fixed rods (10) is fixedly connected to a hollow plate (12); the bottom of the hollow plate (12) is fixedly connected to the positioning rods (9) on both sides, and a detection probe is installed at the bottom of the hollow plate (12); A cleaning mechanism (8) is provided on the rear side of the hollow plate (12), and the top of the cleaning mechanism (8) is fixedly connected to the fixed plate (4); the outside of the cleaning mechanism (8) is connected to an air pipe (11), and the other end of the air pipe (11) is connected to an air pump (7); the outside of the air pump (7) is fixedly connected to the ICT online testing device (1).

2. A circuit board performance testing device according to claim 1, characterized in that: The multi-directional moving mechanism (5) comprises a transverse frame (501), a first motor (502) and a first threaded shaft (503); the outer side of the transverse frame (501) is fixedly connected to the fixed plate (4); the interior of the transverse frame (501) is fixedly connected to the first motor (502); the end of the main shaft of the first motor (502) is fixedly connected to the first threaded shaft (503); the outer side of the first threaded shaft (503) is spirally connected to the first threaded sleeve (504); the outer side of the first threaded sleeve (504) is fixedly connected to the moving shaft (503); A movable block (505), the other side of the movable block (505) is fixedly connected to a longitudinal frame (506), the interior of the longitudinal frame (506) is fixedly connected to a second motor (507), the end of the main shaft of the second motor (507) is fixedly connected to a second threaded shaft (508), the outer side of the second threaded shaft (508) is spirally connected to a second threaded sleeve (509), the outer side of the second threaded sleeve (509) is fixedly connected to a connecting plate (510), and the bottom of the connecting plate (510) is fixedly connected to the marking mechanism (6).

3. A circuit board performance testing device according to claim 1, characterized in that: The marking mechanism (6) comprises a mounting frame (601), a hydraulic rod (602) and a buffer frame (603); the top of the mounting frame (601) is fixedly connected to the multi-directional movable mechanism (5); the interior of the mounting frame (601) is fixedly connected to the hydraulic rod (602); the free end of the hydraulic rod (602) is fixedly connected to the buffer frame (603); the interior of the buffer frame (603) is slidably connected to a sliding plate (604); the interior of the sliding plate (604) is fixedly connected to a first magnet (605); a second magnet (606) is provided on one side of the first magnet (605); and the other end of the second magnet (606) is fixedly connected to a marking pen (607).

4. A circuit board performance testing device according to claim 3, characterized in that: The buffer frame (603) is internally fixedly connected with limit blocks (608), and the limit blocks (608) are provided in two groups, and the limit blocks (608) are symmetrically arranged.

5. A circuit board performance testing device according to claim 3, characterized in that: A first spring (609) is fixedly connected to one side of the sliding plate (604), and the other end of the first spring (609) is fixedly connected to the buffer frame (603).

6. A circuit board performance testing device according to claim 1, characterized in that: The cleaning mechanism (8) comprises a cleaning frame (801), a third motor (802) and a third threaded shaft (803); the third motor (802) is fixedly connected to the inside of the cleaning frame (801); the third threaded shaft (803) is fixedly connected to the end of the main shaft of the third motor (802); the third threaded shaft (803) is spirally connected to the outside of the third threaded shaft (803); the third threaded sleeve (804) is fixedly connected to the outside of the third threaded sleeve (804); the hollow tube (805) is slidably connected to the cleaning frame (801); the outside of the hollow tube (805) is connected to multiple groups of cleaning tubes (806); and the outside of the hollow tube (805) is connected to the air pipe (11).

7. A circuit board performance testing device according to claim 6, characterized in that: The cleaning pipe (806) is arranged at an incline.

8. A circuit board performance testing device according to claim 6, characterized in that: The cleaning frame (801) is internally slidably connected to a limit plate (809), and the top of the limit plate (809) is fixedly connected to a guide rod (807), the top of the guide rod (807) is fixedly connected to the fixed plate (4), and a second spring (808) is provided on the outside of the guide rod (807), one side of the second spring (808) is fixedly connected to the fixed plate (4), and the other end of the second spring (808) is fixedly connected to the cleaning frame (801).

9. A testing method for a circuit board performance testing device according to any one of claims 1 to 8, characterized in that: The test method is as follows: Step 1: Place the circuit board (2) on a placement rack inside the ICT online testing equipment (1); Step 2: Start the ICT online test device (1) so that the ICT online test device (1) drives the detection module (3) to move downward. At this time, the fixed plate (4) inside the detection module (3) drives the fixed rod (10) to move downward, the fixed rod (10) drives the hollow plate (12) to move downward, and the hollow plate (12) drives the positioning rod (9) below to move downward, thereby achieving precise positioning; Step 3: Conducting testing by bringing multiple groups of detection heads under the hollow plate (12) into contact with the surface of the circuit board (2); Step 4: In case there is a lot of dust on the surface of the circuit board (2), the surface of the circuit board (2) can be cleaned by starting the air pump (7) and the cleaning mechanism (8) in advance; Step 5: When testing, once a faulty area is found, the marking mechanism (6) is driven to move by starting the multi-directional moving mechanism (5), and the marking mechanism (6) can then mark the faulty area.

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