Detection jig for PCB (Printed Circuit Board)

Abstract

The utility model discloses a PCB detection tool comprising a test pedestal, a mounting plate, a pressing rod, a wrench, a mounting seat, a pressing plate and a plurality of equal-height connecting columns, and the test pedestal is provided with a positioning groove used for placing a PCB to be detected; the mounting plate is mounted on the test base; the pressing rod is slidably mounted on the mounting plate; the wrench is hinged to the mounting plate and the top of the pressing rod; the mounting seat is mounted at the bottom of the pressing rod; the pressing plate is located over the positioning groove. The equal-height connecting columns are mounted at the bottom of the mounting base and detachably connected with the top of the pressing plate. And through the detachable connection design of the equal-height connecting columns and the mounting seats, the problems that the pressing plate is tedious to disassemble and assemble and the levelness is deviated are solved. The connection between the pressing rod and the pressing plate is realized through the equal-height connecting columns and the mounting seat, so that the mounting and dismounting processes of the pressing plate are simple and rapid, the flatness of the pressing plate after mounting is ensured through the height consistency of the equal-height connecting columns, the problem of inclination caused by height difference is avoided, and the levelness of the pressing plate is ensured.

Description

Technical Field

[0001] This utility model relates to the field of testing fixtures, and more particularly to a testing fixture for PCB boards. Background Technology

[0002] With the rapid development of the modern electronics industry, PCB boards, as core components of electronic products, directly affect the performance and reliability of these products. To ensure PCB quality, they are typically inspected using testing fixtures. Existing PCB testing fixtures generally include a test base, mounting plate, wrench, pressure bar, and pressure plate. The test base has a positioning slot for placing the PCB board to be inspected. The mounting plate is mounted on the test base. The wrench is hinged to the mounting plate and the top of the pressure bar. The pressure bar is slidably mounted on the mounting plate. The pressure plate is mounted at the bottom of the pressure bar and directly above the positioning slot. Multiple clamping posts are fixed to the bottom of the pressure plate to clamp and position the PCB board.

[0003] However, existing technologies have the following problems: the layout of the clamping posts on the pressure plate needs to be adjusted for PCBs of different sizes or shapes, thus requiring the pressure plate to be replaced. However, the disassembly and assembly process of the pressure plate and the clamping rods is cumbersome, and the reinstalled pressure plate is prone to level deviation, affecting the detection accuracy and efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a PCB board inspection fixture to solve the problems of cumbersome disassembly and assembly of pressure plates and level deviation in the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a PCB board inspection fixture, comprising...

[0006] The test base has a positioning slot for placing the PCB board to be tested.

[0007] Mounting plate, mounted on the test base;

[0008] The pressure rod is slidably mounted on the mounting plate;

[0009] The wrench is hinged to the mounting plate and the top of the pressure rod.

[0010] Mounting bracket, installed at the bottom of the pressure rod;

[0011] The pressure plate is located directly above the positioning groove;

[0012] Multiple connecting columns of equal height are installed at the bottom of the mounting base and detachably connected to the top of the pressure plate.

[0013] Furthermore, the pressure plate has multiple insertion holes arranged in a matrix, the insertion holes are used to insert clamping posts, and the clamping posts are used to press the PCB board.

[0014] Furthermore, the pressure plate is made of a transparent material.

[0015] Furthermore, the equal-height connecting column is detachably mounted on the bottom of the mounting base.

[0016] Furthermore, the mounting plate is provided with a guide slide rod, and the mounting base is slidably mounted on the guide slide rod.

[0017] Furthermore, there are two guide slide rods, and the mounting base is located between the two guide slide rods.

[0018] Furthermore, the top of the pressure plate is provided with an identification mark, and when the equal-height connecting column is connected to the pressure plate, the bottom of the equal-height connecting column is covered by the identification mark.

[0019] Furthermore, the identification mark is made of a reflective material.

[0020] Furthermore, a level is provided on the pressure plate.

[0021] Furthermore, there are two levels, which are respectively installed on two adjacent sides of the pressure plate.

[0022] The beneficial effects of this utility model are as follows: The PCB board inspection fixture provided by this utility model effectively solves the problems of cumbersome disassembly and assembly of pressure plates and level deviation in the prior art through the detachable connection design of the equal-height connecting columns and the mounting base. The connection between the pressure rod and the pressure plate via the equal-height connecting columns and the mounting base makes the installation and disassembly of the pressure plate simple and quick, requiring no complicated tools or steps, greatly improving operational efficiency. At the same time, the consistent height of the equal-height connecting columns ensures the flatness of the pressure plate after installation, avoiding tilting problems caused by height differences and ensuring the levelness of the pressure plate. The stable support of the mounting base also provides a reliable base for the equal-height connecting columns, ensuring the stability of the pressure plate under force. The linkage design between the pressure rod and the mounting base ensures that the pressure plate is subjected to uniform force when pressing the PCB board, avoiding deformation or damage caused by excessive local pressure. The coordinated design of the overall structure not only improves the accuracy and reliability of the inspection but also enhances the versatility and flexibility of the equipment, making it suitable for the inspection of various PCB board specifications. This design simplifies the operation process while significantly improving inspection efficiency and quality, and has high practicality and promotional value. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the PCB board testing fixture according to Embodiment 1 of this utility model.

[0024] Label Explanation:

[0025] 1. Test base; 11. Positioning groove; 2. Mounting plate; 21. Wrench; 22. Pressure rod; 23. Mounting seat; 24. Guide slide rod; 3. Equal height connecting column; 4. Pressure plate; 41. Insertion hole; 42. Clamping column. Detailed Implementation

[0026] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] Please refer to Figure 1 A PCB board testing fixture, comprising:

[0028] The test base 1 has a positioning groove 11 for placing the PCB board to be tested;

[0029] Mounting plate 2 is mounted on the test base 1;

[0030] The pressure rod 22 is slidably mounted on the mounting plate 2;

[0031] Wrench 21 is hinged to the top of the mounting plate 2 and the pressure rod 22;

[0032] Mounting base 23 is installed at the bottom of the pressure rod 22;

[0033] Pressure plate 4 is located directly above the positioning groove 11;

[0034] Multiple equal-height connecting columns 3 are installed at the bottom of the mounting base 23 and are detachably connected to the top of the pressure plate 4.

[0035] As described above, the beneficial effects of this utility model are as follows: The detachable connection design between the equal-height connecting column 3 and the mounting base 23 effectively solves the problems of cumbersome assembly and disassembly of the pressure plate 4 and horizontal deviation in the prior art. The connection between the pressure rod 22 and the pressure plate 4 via the equal-height connecting column 3 and the mounting base 23 makes the installation and disassembly of the pressure plate 4 simple and quick, requiring no complex tools or steps, greatly improving operational efficiency. Simultaneously, the consistent height of the equal-height connecting column 3 ensures the flatness of the pressure plate 4 after installation, avoiding tilting problems caused by height differences and guaranteeing the horizontality of the pressure plate 4. The stable support of the mounting base 23 also provides a reliable base for the equal-height connecting column 3, ensuring the stability of the pressure plate 4 under stress. The linkage design between the pressure rod 22 and the mounting base 23 ensures that the pressure plate 4 is subjected to uniform force when pressing the PCB board, avoiding deformation or damage caused by excessive local pressure. The coordinated design of the overall structure not only improves the accuracy and reliability of the inspection but also enhances the versatility and flexibility of the equipment, making it suitable for the inspection of PCB boards of various specifications. This design simplifies the operation process while significantly improving testing efficiency and quality, making it highly practical and worthy of widespread application.

[0036] Furthermore, the pressure plate 4 has a plurality of insertion holes 41 arranged in a matrix, the insertion holes 41 being used to insert the clamping posts 42, and the clamping posts 42 being used to press the PCB board.

[0037] As described above, the matrix-shaped insertion holes 41 on the pressure plate 4 allow for quick insertion and connection of the clamping posts 42, thus accommodating PCBs of different specifications. This design improves the versatility and flexibility of the fixture, enabling the pressure plate 4 to quickly adjust the layout of the clamping posts 42 according to the size and shape of the PCB, reducing the frequency of pressure plate 4 replacement and improving testing efficiency.

[0038] Furthermore, the pressure plate 4 is made of a transparent material.

[0039] As described above, the pressure plate 4 is made of transparent material, allowing operators to directly observe the PCB board's condition during inspection and avoiding misjudgments caused by obstruction. The transparent material also facilitates integration with automated inspection equipment, such as through optical sensors for auxiliary inspection, further improving inspection accuracy and efficiency.

[0040] Furthermore, the equal-height connecting column 3 is detachably installed at the bottom of the mounting base 23.

[0041] As described above, the leveling connecting post 3 is detachably connected to the bottom of the mounting base 23, allowing the leveling connecting post 3 to be quickly replaced or adjusted as needed. This design further simplifies the maintenance and adjustment process of the fixture, while ensuring the levelness of the pressure plate 4 after installation, avoiding detection errors caused by deviations in the position of the connecting post.

[0042] Furthermore, the mounting plate 2 is provided with a guide slide rod 24, and the mounting base 23 is slidably mounted on the guide slide rod 24.

[0043] As described above, the guide rod 24 on the mounting plate 2 provides a stable sliding guide for the mounting base 23, ensuring that the pressure plate 4 remains vertical and stable during its up-and-down movement. This design prevents the pressure plate 4 from shifting or tilting during movement, thereby improving the accuracy and reliability of the detection.

[0044] Furthermore, there are two guide slide rods 24, and the mounting base 23 is located between the two guide slide rods 24.

[0045] As described above, by setting two guide slides 24 and placing the mounting base 23 between them, the stability of the mounting base 23 is further enhanced. This symmetrical design makes the pressure plate 4 move more smoothly, reducing the shaking caused by single-point support, thereby improving the accuracy and repeatability of the detection.

[0046] Furthermore, the top of the pressure plate 4 is provided with an identification mark, and when the equal-height connecting column 3 is connected to the pressure plate 4, the bottom of the equal-height connecting column 3 is covered by the identification mark.

[0047] As described above, the identification mark on the top of the pressure plate 4 is obscured when connected to the equal-height connecting post 3. This design allows for quick confirmation that the pressure plate 4 and the equal-height connecting post 3 are correctly installed. If the identification mark is not obscured, it indicates a connection problem and requires readjustment. This design simplifies the inspection steps during installation and improves operational efficiency.

[0048] Furthermore, the identification mark is made of a reflective material.

[0049] As described above, the identification markings use reflective material, making them clearly visible even in low-light conditions. This design facilitates quick identification of the installation status of pressure plate 4 by operators. Especially in automated inspection environments, the reflective material can be combined with optical sensors to further improve the level of automation in the inspection process.

[0050] Furthermore, a level is provided on the pressure plate 4.

[0051] As described above, the level indicator installed on the pressure plate 4 can monitor its horizontal status in real time, ensuring that the pressure plate 4 remains level after installation. This design avoids detection errors caused by the tilt of the pressure plate 4, improving the accuracy and reliability of the detection.

[0052] Furthermore, there are two levels, which are respectively installed on two adjacent sides of the pressure plate 4.

[0053] As described above, by installing a level on each of the two adjacent sides of the pressure plate 4, the horizontal state of the pressure plate 4 can be monitored more comprehensively. This symmetrical design ensures the horizontality of the pressure plate 4 in both directions, further improving the accuracy and stability of the detection.

[0054] Please refer to Figure 1 Embodiment 1 of this utility model is: a PCB board testing fixture for fixing a PCB board for testing. The PCB board includes a test base 1, a mounting plate 2, a pressure rod 22, a wrench 21, a mounting seat 23, a pressure plate 4, and multiple equal-height connecting posts 3. The test base 1 is provided with a positioning groove 11 for placing the PCB board to be tested; the mounting plate 2 is mounted on the test base 1; the pressure rod 22 is slidably mounted on the mounting plate 2; the wrench 21 is hinged to the mounting plate 2 and the top of the pressure rod 22; the mounting seat 23 is mounted on the bottom of the pressure rod 22; the pressure plate 4 is located directly above the positioning groove 11; multiple equal-height connecting posts 3 are mounted on the bottom of the mounting seat 23 and detachably connected to the top of the pressure plate 4; specifically, The bottom of the pressure rod 22 is threaded for connecting to the mounting base 23. The pressure rod 22 and the mounting base 23 are connected by threads. The top and bottom of the equal-height connecting post 3 are parallel reference planes. The top of the equal-height connecting post 3 fits into the bottom of the mounting base 23, ensuring that the equal-height connecting post 3 is perpendicular to the mounting base 23. The bottom of the equal-height connecting post 3 fits into the top of the pressure plate 4, ensuring that the equal-height connecting post is perpendicular to the pressure plate 4, thereby ensuring that the pressure plate 4 is always parallel to the mounting base 23. When the pressure plate 4 needs to be replaced, it can be replaced without operating the pressure rod 22, avoiding tilting and ensuring the levelness of the pressure plate 4. The stable support of the mounting base 23 also provides a reliable base for the equal-height connecting post 3, ensuring that the pressure plate 4 remains stable under force. The linkage design of the pressure rod 22 and the mounting base 23 ensures that the pressure plate 4 is subjected to uniform force when pressing the PCB board, avoiding deformation or damage caused by excessive local pressure. The coordinated design of the overall structure not only improves the accuracy and reliability of the inspection, but also enhances the versatility and flexibility of the equipment, making it suitable for inspecting PCB boards of various sizes. This design simplifies the operation process while significantly improving inspection efficiency and quality, demonstrating high practicality and potential for widespread adoption.

[0055] Preferably, the pressure plate 4 has multiple matrix-distributed insertion holes 41 for inserting clamping posts 42, which are used to press the PCB board. The matrix-distributed insertion holes 41 on the pressure plate 4 allow for quick insertion of the clamping posts 42, thus accommodating PCB boards of different specifications. This design improves the versatility and flexibility of the fixture, allowing the pressure plate 4 to quickly adjust the layout of the clamping posts 42 according to the size and shape of the PCB board, reducing the frequency of pressure plate 4 replacement and improving inspection efficiency. Optionally, the pressure plate 4 is made of a transparent material. Using a transparent material allows operators to directly observe the state of the PCB board during inspection, avoiding misjudgments caused by obstruction. The transparent material also facilitates integration with automated inspection equipment, such as using optical sensors for auxiliary inspection, further improving inspection accuracy and efficiency.

[0056] In this embodiment, the equal-height connecting column 3 is detachably installed at the bottom of the mounting base 23, allowing for quick replacement or adjustment as needed. This design further simplifies the maintenance and adjustment process of the fixture, while ensuring the levelness of the pressure plate 4 after installation, avoiding detection errors caused by deviations in the position of the connecting column. Specifically, the mounting plate 2 is provided with a guide slide rod 24, and the mounting base 23 is slidably installed on the guide slide rod 24. The guide slide rod 24 on the mounting plate 2 provides a stable sliding guide for the mounting base 23, ensuring that the pressure plate 4 remains vertical and stable during up-and-down movement. This design prevents the pressure plate 4 from shifting or tilting during movement, thereby improving the accuracy and reliability of the detection. More specifically, there are two guide slide rods 24, and the mounting base 23 is located between the two guide slide rods 24. By setting two guide slide rods 24 and placing the mounting base 23 between them, the stability of the mounting base 23 is further enhanced. This symmetrical design makes the pressure plate 4 more stable during movement, reducing swaying caused by single-point support, thereby improving the accuracy and repeatability of the detection.

[0057] Optionally, the top of the pressure plate 4 may also be provided with an identification mark (not shown). When the equal-height connecting post 3 is connected to the pressure plate 4, the bottom of the equal-height connecting post 3 obscures the identification mark. This design can be used to quickly confirm whether the pressure plate 4 and the equal-height connecting post 3 are correctly installed. If the identification mark is not obscured, it indicates a connection problem and readjustment is required. This design simplifies the inspection steps during installation and improves operational efficiency. Further, optionally, the identification mark is made of reflective material. Understandably, the use of reflective material makes the identification mark clearly visible even in low-light environments. This design facilitates operators in quickly identifying the installation status of the pressure plate 4. Especially in automated inspection environments, reflective material can be combined with optical sensors to further improve the level of automation in inspection.

[0058] In some other embodiments, the pressure plate 4 is also equipped with a level (not shown in the figure). The level on the pressure plate 4 can monitor the horizontal state of the pressure plate 4 in real time, ensuring that the pressure plate 4 remains horizontal after installation. This design avoids detection errors caused by the tilt of the pressure plate 4, improving the accuracy and reliability of the detection. Optionally, two levels are provided, each installed on one of two adjacent sides of the pressure plate 4. This allows for more comprehensive monitoring of the horizontal state of the pressure plate 4. This symmetrical design ensures the horizontality of the pressure plate 4 in both directions, further improving the accuracy and stability of the detection.

[0059] In summary, the PCB board inspection fixture provided by this utility model effectively solves the problems of cumbersome assembly and disassembly of pressure plates and level deviations in existing technologies through the detachable connection design of equal-height connecting columns and mounting bases. The connection between the pressure rod and the pressure plate via the equal-height connecting columns and mounting bases simplifies and speeds up the installation and disassembly of the pressure plate, eliminating the need for complex tools or steps and significantly improving operational efficiency. Simultaneously, the consistent height of the equal-height connecting columns ensures the flatness of the pressure plate after installation, preventing tilting due to height differences and guaranteeing the levelness of the pressure plate. The stable support of the mounting base also provides a reliable base for the equal-height connecting columns, ensuring the stability of the pressure plate under load. The linkage design between the pressure rod and the mounting base ensures uniform force on the pressure plate when pressing the PCB board, avoiding deformation or damage caused by excessive local pressure. The coordinated design of the overall structure not only improves the accuracy and reliability of the inspection but also enhances the versatility and flexibility of the equipment, making it suitable for inspecting various PCB board specifications. This design simplifies the operation process while significantly improving inspection efficiency and quality, possessing high practicality and promotional value.

[0060] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A PCB board inspection fixture, characterized in that, include The test base has a positioning slot for placing the PCB board to be tested. Mounting plate, mounted on the test base; The pressure rod is slidably mounted on the mounting plate; The wrench is hinged to the mounting plate and the top of the pressure rod. Mounting bracket, installed at the bottom of the pressure rod; The pressure plate is located directly above the positioning groove; Multiple connecting columns of equal height are installed at the bottom of the mounting base and detachably connected to the top of the pressure plate.

2. The PCB board inspection fixture according to claim 1, characterized in that, The pressure plate has multiple insertion holes arranged in a matrix. The insertion holes are used to insert clamping posts, and the clamping posts are used to press the PCB board.

3. The PCB board inspection fixture according to claim 2, characterized in that, The pressure plate is made of a transparent material.

4. The PCB board inspection fixture according to claim 1, characterized in that, The equal-height connecting column is detachably installed at the bottom of the mounting base.

5. The PCB board inspection fixture according to claim 1, characterized in that, The mounting plate is provided with a guide slide rod, and the mounting base is slidably mounted on the guide slide rod.

6. The PCB board inspection fixture according to claim 5, characterized in that, The number of guide slides is two, and the mounting base is located between the two guide slides.

7. The PCB board inspection fixture according to claim 1, characterized in that, The top of the pressure plate is provided with an identification mark. When the equal-height connecting column is connected to the pressure plate, the bottom of the equal-height connecting column is covered by the identification mark.

8. The PCB board inspection fixture according to claim 7, characterized in that, The identification mark is made of reflective material.

9. The PCB board inspection fixture according to claim 1, characterized in that, A level is installed on the pressure plate.

10. The PCB board inspection fixture according to claim 9, characterized in that, The number of the level is two, and the two levels are respectively installed on two adjacent sides of the pressure plate.

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