A circuit board aging test fixture

Abstract

The utility model relates to circuit board technical field, concretely is a kind of circuit board aging test fixture.A kind of circuit board aging test fixture, comprising: machine table;Conveying mechanism, the conveying mechanism is arranged at machine table top, for conveying the circuit board to be tested;Two-axis mechanical arm, the two-axis mechanical arm is erected in the top of conveying mechanism.The utility model has the beneficial effect that: the automatic conveying of circuit board is realized by conveying mechanism, and the position of plug-in terminal is accurately controlled with two-axis mechanical arm, to realize the power supply test of circuit board automatic plug-pull, greatly promote test efficiency, reduce manual operation cost and time consumption, secondly, air-blowing assembly and blowing ash component are sequentially distributed along the conveying direction of conveying mechanism, respectively provide hot air flow and dust environment for circuit board, so that circuit board effectively simulates the compound aging environment of high temperature and dust before power supply test, can comprehensively test the performance stability of circuit board under complex environment.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, specifically to a circuit board aging test fixture. Background Technology

[0002] With the widespread application of electronic devices, circuit boards, as core components, undertake critical functions such as signal processing and power management. Their performance stability directly affects the lifespan and reliability of electronic devices. However, during long-term use, circuit boards may experience performance degradation, poor contact, or component aging due to environmental factors such as high temperature and dust. Therefore, aging tests on circuit boards to evaluate their performance in complex environments are particularly important.

[0003] However, existing equipment can usually only simulate high temperature or dusty environments, lacking integrated composite environment testing capabilities, and is difficult to fully reflect the aging of circuit boards in actual use. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing a circuit board aging test fixture. This solves the problem that existing equipment can usually only simulate high temperature or dusty environments, lacks integrated composite environment testing capabilities, and is difficult to comprehensively reflect the aging condition of circuit boards in actual use.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A circuit board aging test fixture, comprising: Machine tool; A conveying mechanism, which is located on the top of the machine, is used to transport the circuit board to be tested; A two-axis robotic arm is mounted above a conveying mechanism. The two-axis robotic arm includes an x-axis and a z-axis. The x-axis is located on the top of the machine platform, and the z-axis is located on the moving end of the x-axis. A power connector is provided on the z-axis moving end of the two-axis robotic arm; An air blowing assembly, located above the conveying mechanism, is used to blow hot air onto the conveyed circuit board to be tested. A dust blowing assembly is provided above the conveying mechanism and is used to blow dust onto the conveyed circuit board to be tested. The air blowing assembly and the dust blowing assembly are distributed sequentially along the conveying direction of the conveying mechanism.

[0006] The beneficial effects of this utility model are: 1) The circuit board is automatically transported through the conveying mechanism, and the position of the plug-in terminal is precisely controlled by the two-axis robotic arm to realize the power supply test of automatic plug-in and unplugging of the circuit board, which greatly improves the test efficiency and reduces the cost and time consumption of manual operation. Secondly, the air blowing component and the dust blowing component are distributed in sequence along the conveying direction of the conveying mechanism, respectively providing the circuit board with hot airflow and dust environment, so that the circuit board can effectively simulate the composite aging environment of high temperature and dust before power supply test, and can comprehensively test the performance stability of the circuit board in complex environment.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the conveying mechanism includes two wall panels and two operating conveyor belts. The two wall panels are fixed to the top of the machine and arranged at intervals, and the two conveyor belts are located on one side of the two wall panels respectively.

[0009] Furthermore, the top of both wall panels is provided with an aging chamber, and the aging chamber is covered outside the air blowing assembly and the soot blowing assembly.

[0010] Furthermore, the air blowing assembly includes a heater, which is fixed to the inner side wall of the aging chamber.

[0011] The beneficial effect of adopting the above-mentioned further solution is that when the circuit board is conveyed to the aging chamber below the operating conveyor belt, that is, directly below the heater, the heater can stably output high-temperature airflow, which directly acts on the surface of the circuit board, causing its surface temperature to rise rapidly, thereby effectively simulating the actual working conditions of the circuit board in a high-temperature environment.

[0012] Furthermore, the soot blowing assembly includes a dust canister filled with dust, a first one-way valve, a second one-way valve, a guide tube, a soot blowing pipe, a cylinder, and an air bag. The air bag is fixed to the inner side wall of the aging chamber, and the dust canister is fixed to the top of the aging chamber.

[0013] Furthermore, the two ends of the guide tube are respectively connected to the dust canister and the airbag, the first one-way valve is located at one end of the guide tube, one end of the soot blowing tube is connected to the bottom of the airbag, and the second one-way valve is located at the other end of the soot blowing tube.

[0014] Furthermore, the flow direction of the first one-way valve is from the dust canister to the airbag.

[0015] Furthermore, the flow direction of the second one-way valve is one-way from the soot blowing pipe to the outside air.

[0016] The beneficial effect of adopting the above-mentioned further solution is that by using a cylinder to drive the airbag, the airbag is deformed into a concave shape. Through the one-way flow of the first and second one-way valves, the airbag is able to draw in dust from the dust canister during the process of returning to its original shape. When the airbag is squeezed again, the airflow carrying dust is blown onto the surface of the circuit board through the dust blowing pipe, so that the dust is evenly attached to the circuit board. This can effectively simulate the operating conditions of the circuit board in a dusty environment. The dust blowing structure is not only simple but also highly efficient, and can realistically reproduce the impact of dust on the performance of the circuit board. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial three-dimensional structural diagram of the present invention; Figure 3 This is a side sectional view of the aging chamber of this utility model.

[0018] The attached diagram lists the components represented by each number as follows: Machine base, 20, conveying mechanism, 201, wall panel, 202, conveyor belt, 30, two-axis robotic arm, 301, x-axis, 302, z-axis, 40, power terminal, 50, air blowing assembly, 60, dust blowing assembly, 601, dust canister, 602, first one-way valve, 603, second one-way valve, 604, guide tube, 605, dust blowing pipe, 606, cylinder, 607, air bag, 70, aging chamber. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] With the widespread application of electronic devices, circuit boards, as core components, undertake critical functions such as signal processing and power management. Their performance stability directly affects the lifespan and reliability of electronic devices. However, during long-term use, circuit boards may experience performance degradation, poor contact, or component aging due to environmental factors such as high temperature and dust. Therefore, aging tests on circuit boards to evaluate their performance in complex environments are particularly important.

[0021] However, existing equipment can usually only simulate high temperature or dusty environments and lacks integrated composite environment testing capabilities, making it difficult to fully reflect the aging of circuit boards in actual use. In response, the inventor has proposed a circuit board aging test fixture to solve the above problems.

[0022] The present invention provides the following preferred embodiments. like Figure 1 , Figure 2 and Figure 3 As shown, a circuit board aging test fixture includes: Machine tool; Conveying mechanism platform; 20, the conveying mechanism platform; 20 is set on the top of the platform and is used to transport the circuit board to be tested; A two-axis robotic arm 30 is mounted on the conveyor platform 20. The two-axis robotic arm 30 includes an x-axis 301 and a z-axis 302. The x-axis 301 is located on the top of the platform, and the z-axis 302 is located on the moving end of the x-axis 301. A power terminal 40 is provided on the moving end of the z-axis 302 of the two-axis robotic arm 30. Air blowing assembly 50 is located above the conveyor mechanism platform 20 and is used to blow hot air onto the conveyed circuit board to be tested. The dust blowing assembly 60 and the air blowing assembly 50 are located above the conveyor platform 20 and are used to blow dust onto the conveyed circuit board to be tested. The air blowing assembly 50 and the dust blowing assembly 60 are distributed sequentially along the conveying direction of the conveyor platform 20. The automatic conveying mechanism 20 enables the automatic transport of circuit boards, and the two-axis robotic arm 30 precisely controls the position of the power terminals 40 to achieve automatic plug-in and unplugging of the circuit boards for power supply testing, which greatly improves testing efficiency and reduces manual operation costs and time consumption. Secondly, the air blowing component 50 and the dust blowing component 60 are distributed sequentially along the conveying direction of the conveying mechanism 20, respectively providing the circuit boards with hot airflow and dust environment, so that the circuit boards can effectively simulate the combined aging environment of high temperature and dust before power supply testing, and can comprehensively test the performance stability of the circuit boards in complex environments.

[0023] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the conveying mechanism platform 20 includes two wall panels 201 and two operating conveyor belts 202. The two wall panels 201 are fixed to the top of the platform and arranged at intervals, and the two conveyor belts 202 are located on one side of the two wall panels 201 respectively.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the top of the two wall panels 201 is provided with an aging chamber 70, and the aging chamber 70 is covered outside the air blowing assembly 50 and the soot blowing assembly 60.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the air blowing assembly 50 includes a heater, which is fixed on the inner side wall of the aging chamber 70. When the circuit board is conveyed to the bottom of the aging chamber 70, that is, directly below the heater, by the running conveyor belt 202, the heater can stably output high-temperature airflow, which directly acts on the surface of the circuit board, causing its surface temperature to rise rapidly, thereby effectively simulating the actual working conditions of the circuit board in a high-temperature environment.

[0026] In this embodiment, the soot blowing assembly 60 includes a dust canister 601 filled with dust, a first one-way valve 602, a second one-way valve 603, a guide tube 604, a soot blowing pipe 605, a cylinder 606, and an airbag 607. The airbag 607 is fixed on the inner side wall of the aging chamber 70, and the dust canister 601 is fixed on the top of the aging chamber 70. The dust canister 601 has an air inlet on its exterior. The two ends of the guide tube 604 are connected to the dust canister 601 and the airbag 607, respectively. The first one-way valve 602 is located at one end of the guide tube 604, and one end of the soot blowing pipe 605 is connected to the bottom of the airbag 607. The second one-way valve 603 is located at the other end of the soot blowing pipe 605. The flow direction of the first one-way valve 602 is from the dust canister 601 to the airbag 607, and the flow direction of the second one-way valve 603 is from the soot blowing pipe 605 to the outside air. A cylinder 606 drives an airbag 607, causing it to deform in a concave direction. Through the one-way flow of the first and second one-way valves 602 and 603, dust is drawn into the dust canister 601 as the airbag 607 returns to its original shape. When the airbag 607 is squeezed again, the dust-laden airflow is blown onto the circuit board surface through a blowing pipe 605, ensuring the dust adheres evenly to the board. This effectively simulates the operating conditions of a circuit board in a dusty environment. The blowing structure is simple, efficient, and realistically reproduces the impact of dust on circuit board performance.

[0027] The specific working process of this utility model is as follows: (1) Heating the circuit board First, when the circuit board is conveyed to the aging chamber 70 by the operating conveyor belt 202, that is, directly below the BGP1506-02 model heater, the heater can stably output high-temperature airflow, which directly acts on the surface of the circuit board, causing its surface temperature to rise rapidly, thereby effectively simulating the actual working conditions of the circuit board in a high-temperature environment.

[0028] (2) Allow dust to adhere to the surface of the circuit board. Before initial use, the airbag 607 is squeezed by the drive end of the cylinder 606, causing the outer surface of the airbag 607 to become concave and deflated. Because the airbag 607 is elastic, it returns to its original shape after being squeezed. Due to the unidirectional flow of the first one-way valve 602 from the dust canister 601 to the airbag 607 and the unidirectional flow of the second one-way valve 603 from the blowing pipe 605 to the outside air, the airbag 607 draws in dust from the dust canister 601 into itself during the process of returning to its original shape. When the circuit board is transported to the bottom of the blowing pipe 605, it is squeezed again by the drive end of the cylinder 606, causing the airbag 607 to become concave and deflated again. During the process of the airbag 607 becoming concave and deflated, the airflow carrying dust inside it blows the dust from the blowing pipe 605 onto the surface of the circuit board, allowing the dust to adhere to the circuit board.

[0029] (3) Power supply test After the circuit board is heated and dust adheres, it is transported by the operating conveyor belt 202 to the area below the power plug terminal 40. At the same time, the two-axis robotic arm 30 precisely controls the position of the power plug terminal 40 so that it contacts the circuit on the circuit board to supply power to the circuit board.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A circuit board aging test fixture, characterized in that, include: Machine tool; A conveying mechanism, which is located on the top of the machine, is used to transport the circuit board to be tested; A two-axis robotic arm is mounted above a conveying mechanism. The two-axis robotic arm includes an x-axis and a z-axis. The x-axis is located on the top of the machine platform, and the z-axis is located on the moving end of the x-axis. A power connector is provided on the z-axis moving end of the two-axis robotic arm; An air blowing assembly, located above the conveying mechanism, is used to blow hot air onto the conveyed circuit board to be tested. A dust blowing assembly is provided above the conveying mechanism and is used to blow dust onto the conveyed circuit board to be tested. The air blowing assembly and the dust blowing assembly are distributed sequentially along the conveying direction of the conveying mechanism.

2. The circuit board aging test fixture according to claim 1, characterized in that, The conveying mechanism includes two wall panels and two operating conveyor belts. The two wall panels are fixed to the top of the machine and arranged at intervals, and the two conveyor belts are located on one side of the two wall panels respectively.

3. The circuit board aging test fixture according to claim 2, characterized in that, The top of both wall panels is provided with an aging chamber, and the aging chamber is covered outside the air blowing assembly and the soot blowing assembly.

4. The circuit board aging test fixture according to claim 3, characterized in that, The air blowing assembly includes a heater, which is fixed to the inner side wall of the aging chamber.

5. A circuit board aging test fixture according to claim 4, characterized in that, The soot blowing assembly includes a dust canister filled with dust, a first one-way valve, a second one-way valve, a guide tube, a soot blowing pipe, a cylinder, and an air bag. The air bag is fixed to the inner side wall of the aging chamber, the dust canister is fixed to the top of the aging chamber, and the cylinder is located on one side of the air bag and fixed to the inner side wall of the aging chamber.

6. A circuit board aging test fixture according to claim 5, characterized in that, The two ends of the guide tube are respectively connected to the dust tank and the air bag. The first one-way valve is located at one end of the guide tube, one end of the soot blowing tube is connected to the bottom of the air bag, and the second one-way valve is located at the other end of the soot blowing tube.

7. A circuit board aging test fixture according to claim 6, characterized in that, The flow direction of the first one-way valve is from the dust canister to the airbag.

8. A circuit board aging test fixture according to claim 6, characterized in that, The flow direction of the second one-way valve is one-way from the soot blowing pipe to the outside air.

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