A rapid circuit board detection tool

Abstract

The utility model relates to a kind of fast circuit board detection tool, and it relates to circuit board measuring tool tool field, technical solutions are as follows: including detection table, detection module and adjusting assembly are arranged in the cavity of detection table, and the up-and-down movement of limiting plate and the horizontal movement of inner bracket are driven by adjusting assembly.The beneficial effects of the technical solutions are as follows: by the up-and-down movement of limiting plate and the horizontal movement of inner bracket, the operator's line of sight is avoided to be hindered, so that the operator is more convenient and accurately operated, by adjusting assembly, after the operator puts in circuit board, press down detection switch can be automatically measured, after detection is completed, automatically remove circuit board, it is convenient for operator to take out entire circuit board, and convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing technology, and in particular to a quick-access circuit board testing fixture. Background Technology

[0002] Intelligent control in irrigation systems relies heavily on core irrigation circuit boards. These boards require testing during manufacturing, and circuit board testers are indispensable key equipment in the electronics manufacturing industry. They are responsible for comprehensively testing the functionality, performance, and reliability of circuit boards, ensuring that each board meets stringent design specifications and product quality standards. As electronic products rapidly evolve towards miniaturization, high density, and multifunctionality, circuit board structures are becoming increasingly complex, with significantly higher integration levels. This places higher demands on testing technologies.

[0003] Currently, when testing circuit boards, they need to be placed in the designated positions. However, manual placement requires ensuring the circuit board and testing module are perfectly aligned, necessitating multiple repetitions. Furthermore, the clamping structure often obstructs the operator's view during placement, making it difficult to accurately determine the relative position between the board and the test probes or positioning reference, easily leading to alignment deviations. These deviations can range from minor issues like poor probe contact affecting signal acquisition accuracy to serious damage to the circuit board or test fixture caused by forcibly closing the clamps, resulting in unnecessary repair costs and downtime. In addition, the repetitive opening and closing of the clamps and the handling of boards over extended periods can easily cause operator fatigue, reducing overall testing efficiency and potentially increasing the risk of operational errors. Utility Model Content

[0004] The purpose of this invention is to overcome the problem that when testing circuit boards, the circuit board needs to be placed in a positioning area, but the pressure plate will block the view, making it inconvenient for the staff to judge the specific placement position and reducing the testing efficiency. Therefore, a quick circuit board testing fixture is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A quick-access circuit board testing fixture includes a testing table with a cavity inside. An opening is provided at the top of the cavity, and a testing module is connected between two opposite side walls inside the opening. An outer bracket is slidably connected inside the opening, positioned above the testing module, and used to hold the circuit board to be tested. A housing is provided on one side of the upper surface of the testing table, and a connection port is provided on the side wall of the housing. A lifting plate is slidably connected inside the housing, with one end of the lifting plate passing through the connection port and extending to one side of the housing. A limit plate is connected to one end of the lifting plate, and a fixture pressure bar is connected to the lower surface of the limit plate. An adjustment assembly is provided inside the cavity, connected to both the outer bracket and the lifting plate, and capable of simultaneously adjusting the movement of both the outer bracket and the lifting plate.

[0006] By adjusting the settings of the components, the movement of the outer bracket and the lifting plate can be controlled simultaneously, making it convenient for staff to pick up and put down circuit boards. Furthermore, the adjustment components can move the circuit board directly to the position to be tested via the outer bracket, eliminating the need for staff to repeatedly position the board and improving testing efficiency.

[0007] Preferably, a vertical plate surrounds the inner side of the outer bracket, a horizontal plate is connected to the upper side of the vertical plate, multiple springs are fixedly connected to the lower surface of the horizontal plate, and an inner support plate is fixed to the lower end of the springs.

[0008] The inner support plate and spring design allow the circuit board to align with the detection module's detection position, facilitating operation by staff.

[0009] Preferably, the adjustment assembly includes a drive shaft disposed within the cavity, with a horizontal motion beam and a vertical motion beam hinged to both ends of the drive shaft, the end of the horizontal motion beam away from the drive shaft passing through the opening and hinged to both sides of the outer bracket, an electric push rod hinged to the bottom of the cavity, the end of the electric push rod hinged to the horizontal motion beam, the upper ends of the two vertical motion beams passing through the top of the cavity and extending into the housing, a first slide groove installed on each of the two side walls of the housing, a first slider installed in the first slide groove, the two first sliders respectively connected to the two vertical motion beams, and the upper ends of the two vertical motion beams connected together to the lower surface of the lifting plate.

[0010] The electric push rod simultaneously moves the horizontal and vertical moving beams, thus avoiding the obstruction of the worker's view by the limit plate when placing the circuit board, and also has the function of automatic detection after the circuit board is placed.

[0011] Preferably, a second sliding groove is provided on each of the two sidewalls inside the opening along the length direction, and a second slider is installed in the second sliding groove. The two second sliders are respectively fixedly connected to both sides of the outer bracket.

[0012] Preferably, a sensor is installed at the bottom of the housing, and the sensor is installed corresponding to the lifting plate.

[0013] Preferably, a detection port is provided in the middle of the inner tray, and a placement groove is provided on the upper surface of the inner tray.

[0014] Compared with existing technologies, the advantages of this invention are as follows: When inspecting circuit boards, the inner bracket extends beyond the limiting plate, preventing the limiting plate from obstructing the view when placing the circuit board, thus enabling more convenient and accurate operation. After the circuit board is placed on the inner bracket, the adjusting component moves the circuit board horizontally above the inspection module. Simultaneously, the adjusting component also moves the fixture pressure bar downwards via the limiting plate. The fixture pressure bar fixes the circuit board and aligns it with the probes on the upper pin plate of the inspection module, eliminating the need for repeated positioning by the operator, thus improving inspection efficiency. After inspection, the circuit board is automatically removed, facilitating its removal by the operator and improving convenience. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0017] Figure 2 This is a front view of a specific embodiment of the present utility model.

[0018] Figure 3 This is a side view of a specific embodiment of the present utility model.

[0019] Figure 4 This is a side sectional view of a specific embodiment of the present invention.

[0020] Figure 5 This is a frontal sectional view of a specific embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the structure inside the testing station in a specific embodiment of this utility model.

[0022] Figure 7 This is a schematic diagram of the structure of the outer bracket in a specific embodiment of this utility model.

[0023] Figure 8 This is a side view of the outer bracket in a specific embodiment of the present utility model.

[0024] Figure 9 This is a cross-sectional view of the outer bracket in a specific embodiment of this utility model.

[0025] Figure 10 for Figure 6 Enlarged view of point A.

[0026] In the diagram: 1. Testing platform; 2. Zeroing button; 3. Indicator light; 4. Inner support plate; 5. Placement slot; 6. Connection port; 7. Outer bracket; 8. Limiting plate; 9. Lifting plate; 10. Housing; 11. Testing platform switch; 12. Vertical moving beam; 13. Horizontal moving beam; 14. Electric push rod; 15. Testing module; 16. Drive shaft; 17. Spring; 18. Second slider; 19. Sensor; 20. Push rod switch; 21. Vertical plate; 22. Horizontal plate; 23. First slide rail; 24. First slider; 25. Second slide rail; 26. Display. Detailed Implementation

[0027] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0028] Reference Figures 1-10A quick-access circuit board testing fixture includes a testing table 1 with a testing table switch 11. Turning on the testing table switch 11 activates the entire device. A push rod switch 20 is electrically connected to an electric push rod 14, and the testing table switch 11 controls the opening of the electric push rod 14. An indicator light 3 is installed on the testing table 1, and the indicator light 3 is electrically connected to a testing module 15. The testing module 15 provides feedback on whether the circuit board has a problem via the indicator light 3. The testing table 1 has a cavity with an opening at the top. The testing module 15 is connected between two opposite side walls inside the opening. A needle plate is installed on the upper surface of the testing module 15, and the needle plate has pins that connect to the wires. The probes corresponding to the detection points on the circuit board are slidably connected to the outer bracket 7 inside the opening. The inner side of the outer bracket 7 surrounds the vertical plate 21. A horizontal plate 22 is connected to the upper end of the vertical plate 21. Multiple springs 17 are installed on the lower surface of the horizontal plate 22. During operation, the limiting plate 8 drives the inner support plate 4 to move downward through the fixture pressure bar and the circuit board, so that the circuit board abuts against the detection point of the detection module 15. At this time, the springs 17 are stretched, which can ensure that the inner support plate 4 will automatically return to the upper position, which facilitates the horizontal movement of the outer bracket 7. The lower end of the spring 17 is fixedly connected to the inner support plate 4. A detection port is opened in the middle of the inner support plate 4, and the pins can pass through the detection port to detect the circuit board.The placement slot 5 is used to fix the circuit board, preventing its position from shifting during testing, which could affect the testing results or even damage the circuit board. The upper side wall of the placement slot 5 has a chamfer, making it easy for the operator to place the circuit board. When the operator places the circuit board horizontally, the chamfer design helps the circuit board slide in smoothly. After sliding in, the side wall of the placement slot 5 applies a horizontal fixing force to ensure its stability. The inner support plate 4 has four notches, allowing the operator to pinch the circuit board from the notches and easily remove it. This design ensures both ease of installation and improved usability. For safety, the outer bracket 7 is located above the testing module 15. The outer bracket 7 is used to place the circuit board to be tested. The outer bracket 7 can drive the circuit board to be tested to slide horizontally within the opening. This way, when the staff picks up and puts down the circuit board, they do not need to pick it up or put it down at the testing position, avoiding the obstruction of the upper limit plate 8, which makes it convenient for the staff to pick up and put down the circuit board, thereby facilitating the replacement of the circuit board and improving the testing efficiency. A box 10 is provided on one side of the upper surface of the testing table 1. A connection port 6 is provided on the side wall of the box 10. A lifting plate 9 is slidably connected inside the box 10. One end of the lifting plate 9 passes through the connection port 6 and extends into the box 10. On one side of 0, one end of the lifting plate 9 is connected to a limiting plate 8. A fixture pressure bar is connected to the lower surface of the limiting plate 8. The lower end of the fixture pressure bar has a buffer pad. The position of the fixture pressure bar on the limiting plate 8 can be changed according to the actual situation of the circuit board. When the limiting plate 8 moves downward, the limiting plate 8 will drive the fixture pressure bar to move downward together. The fixture pressure bar abuts against the circuit board, causing the circuit board to move downward. The circuit board contacts the pins on the pin plate of the detection module 15. At this time, the pins on the circuit board and the detection module 15 are vertically aligned. After power is applied, the circuit board can be tested. An adjustment component is provided in the cavity. The components are connected to the outer bracket 7 and the lifting plate 9 respectively. The adjustment component can adjust the movement of the outer bracket 7 and the lifting plate 9 simultaneously. The adjustment component can control the lifting plate 9 to move up and down, and at the same time control the outer bracket 7 to move along the length of the opening. When testing is required, the circuit board is placed on the outer bracket 7. Then the adjustment component controls the outer bracket 7 to move closer to the housing 10. At the same time, the upper lifting plate 9 drives the limiting plate 8 to move downward to limit the circuit board. After the test is completed, the outer bracket 7 is controlled to move away from the housing 10. At this time, the limiting plate 8 moves upward, thereby improving work efficiency.

[0029] Reference Figures 4-6The adjustment assembly includes a drive shaft 16 disposed within the cavity. A horizontal moving beam 13 and a vertical moving beam 12 are hinged to both ends of the drive shaft 16, respectively. The end of the horizontal moving beam 13 away from the drive shaft 16 passes through an opening and is hinged to both sides of the outer bracket 7. Second slide grooves 25 are provided on both sides of the opening, located on both sides of the detection module 15. Second sliders 18 mounted on both sides of the outer bracket 7 can slide on the second slide grooves 25, facilitating the sliding of the outer bracket 7. An electric push rod 14 is hinged to the bottom of the cavity, with its end hinged to the horizontal moving beam 13. The upper ends of the two vertical moving beams 12 pass through the top of the cavity and extend into the housing 10. First slide grooves 23 are installed on both side walls of the housing 10, and first sliders 24 are installed within the first slide grooves 23. The first sliders 24 can move vertically on the first slide grooves 23, thereby moving the lifting plate 9 together. The lifting plate 9 consists of a rectangular plate and a connecting rod. The rectangular plate is located in the housing 10. The connecting rod passes through the connecting port 6 and is connected to the limiting plate 8. Two first sliders 24 are respectively connected to two vertical moving beams 12. The upper ends of the two vertical moving beams 12 are connected to the lower surface of the lifting plate 9. During operation, the electric push rod 14 drives the corresponding horizontal moving beam 13 to move. The end of the horizontal moving beam 13 drives the transmission shaft 16 to move upward together. At this time, the transmission shaft 16 pushes the vertical moving beam 12 to move upward. Since the end of the horizontal moving beam 13 is slidably connected to the outer bracket 7, the horizontal moving beam 13 pushes the outer bracket 7 to slide together, realizing the simultaneous movement of the vertical moving beam 12 and the horizontal moving beam 13, thereby driving the circuit board to enter and exit and the limiting plate 8 to move up and down. This avoids the limiting plate 8 obstructing the worker's view when placing the circuit board, and also has the function of automatic detection after the circuit board is placed.

[0030] Reference Figure 5 A sensor 19 is installed on the bottom inner side of the upper housing 10. The sensor 19 is set up vertically and vertically to correspond with the lifting plate 9. The sensor 19 can sense the vertical movement of the lifting plate 9. When the lifting plate 9 moves down to the detection position, that is, the lower end of the first slide groove 23, the sensor 19 activates the power supply of the detection module 15 and the detection can begin.

[0031] In use, the operator places the circuit board on the inner support plate 4 and then presses the detection push rod switch 20. The electric push rod 14 begins to retract inward, thereby driving the horizontal moving beam 13 to move downward. Through the transmission shaft 16, it drives the vertical moving beam 12 to move downward along the first slide groove 23. The horizontal moving beam 13 drives the outer bracket 7, which is hinged to it, to move. The outer bracket 7 drives the second slider 18 on it to slide horizontally in the second slide groove 25. The circuit board will move horizontally with the inner support plate 4. At the same time, the vertical moving beam 12 drives the lifting plate 9 on it to move downward through the first slider 24. The lifting plate 9 drives the limiting plate 8 fixedly connected to its lower side to move downward. After the vertical moving beam 12 reaches the lower end of the first slide groove 23, the positions of the circuit board on the inner support plate 4 and the pins on the needle plate on the detection module 15 correspond. The sensor 19 connects the detection module 15 to start detecting the circuit board on the inner support plate 4. After the test is completed, sensor 19 disconnects the power supply to the detection module 15, the electric push rod 14 automatically extends, driving the horizontal moving beam 13 to move upward, the outer bracket 7 to move horizontally, the vertical moving beam 12 to move upward, and the limit plate 8 to move upward. After moving to the upper end of the first slide 23, the operator can remove the circuit board from the notch of the inner support plate 4 and continue to repeat the operation. After each circuit board is tested, the number on the display 26 increments by one. When it is necessary to clear the number on the display 26, press the clear button 2.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quick-access circuit board testing fixture, comprising a testing table (1), characterized in that, The testing platform (1) has a cavity with an opening at the top. A testing module (15) is connected between two opposite side walls inside the opening. An outer bracket (7) is slidably connected inside the opening. The outer bracket (7) is located above the testing module (15) and is used to place the circuit board to be tested. A housing (10) is provided on one side of the upper surface of the testing platform (1). A connection port (6) is provided on the side wall of the housing (10). A lifting plate (9) is slidably connected inside the housing (10). One end of the lifting plate (9) passes through the connection port (6) and extends to one side of the housing (10). One end of the lifting plate (9) is connected to a limiting plate (8). A fixture pressure bar is connected to the lower surface of the limiting plate (8). An adjustment component is provided inside the cavity. The adjustment component is connected to the outer bracket (7) and the lifting plate (9) respectively. The adjustment component can simultaneously adjust the movement of the outer bracket (7) and the lifting plate (9).

2. The quick-access circuit board testing fixture according to claim 1, characterized in that: The inner side of the outer bracket (7) is surrounded by a vertical plate (21), and a horizontal plate (22) is connected to the upper side of the vertical plate (21). Multiple springs (17) are fixedly connected to the lower surface of the horizontal plate (22), and an inner bracket (4) is fixed to the lower end of the springs (17).

3. The quick-access circuit board testing fixture according to claim 1, characterized in that: The adjustment assembly includes a drive shaft (16) disposed in the cavity. A horizontal motion beam (13) and a vertical motion beam (12) are respectively hinged at both ends of the drive shaft (16). The end of the horizontal motion beam (13) away from the drive shaft (16) passes through the opening and is hinged to both sides of the outer bracket (7). An electric push rod (14) is hinged to the bottom of the cavity. The end of the electric push rod (14) is hinged to the horizontal motion beam (13). The upper ends of the two vertical motion beams (12) pass through the top of the cavity and extend into the housing (10). A first slide groove (23) is installed on each of the two side walls inside the housing (10). A first slider (24) is installed in the first slide groove (23). The two first sliders (24) are respectively connected to the two vertical motion beams (12). The upper ends of the two vertical motion beams (12) are connected to the lower surface of the lifting plate (9).

4. The quick-access circuit board testing fixture according to claim 1, characterized in that: The two side walls inside the opening are provided with a second slide groove (25) along the length direction. A second slider (18) is installed in the second slide groove (25). The two second sliders (18) are fixedly connected to the two sides of the outer bracket (7).

5. The quick-access circuit board testing fixture according to claim 1, characterized in that: A sensor (19) is installed at the bottom of the housing (10), and the sensor (19) is installed in correspondence with the lifting plate (9).

6. The quick-access circuit board testing fixture according to claim 2, characterized in that: The inner tray (4) has a detection port in the middle and a placement groove (5) on the upper surface of the inner tray (4).

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