PCBA board test fixture

Abstract

The utility model discloses a PCBA board test fixture, which comprises a test bench, a tester and a probe group, the probe group is installed inside the test bench, the tester is located at the left side of the test bench and is connected with the probe group through a cable, and the top of the test bench is provided with a through groove. According to the utility model, through the cooperation of the bending rod and the linkage shaft, the convenient pressing and resetting of the sealing cover are realized, the operation is simple and visual, the test efficiency is obviously improved, the design of the sealing cover can effectively shield the PCBA board, the injury to operators caused by accidents such as explosion which may occur in the test process is prevented, and the shielding function is provided at the same time; according to the utility model, the influence of external interference on the test result is reduced, the safety and accuracy of the test are improved, the supporting plate capable of vertically moving can realize automatic power-on and power-off through the metal contacts, the safety is further improved, the overall structural design is reasonable, the function integration level is high, the operation process is simplified, and the use cost is reduced.

Description

Technical Field

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

[0002] With the rapid development of electronic technology, PCBAs, as core components of electronic devices, directly affect the stability and reliability of electronic products. To ensure the proper functioning of PCBA boards, rigorous testing is required during the production process.

[0003] Traditional PCBA board test fixtures typically employ an open structure. During testing, the PCBA board may explode or be damaged due to short circuits, overloads, or other reasons. The open structure cannot effectively protect operators, posing a safety hazard. Furthermore, the open structure is susceptible to external electromagnetic interference, affecting the accuracy of test results, especially in precision testing. In addition, the testing process of traditional fixtures is cumbersome, requiring manual connection of probes and adjustment of test parameters, resulting in low efficiency and high technical requirements for operators. Therefore, experts in this field have provided a PCBA board test fixture to solve the aforementioned problems. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a PCBA board test fixture that realizes convenient pressing and resetting of the sealing cover, has high functional integration, simplifies the operation process, reduces the cost of use, and significantly improves the testing efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution;

[0006] A PCBA board testing fixture includes a test stand, a tester, and a probe assembly. The probe assembly is installed inside the test stand. The tester is located on the left side of the test stand and connected to the probe assembly via a cable. A through slot is formed on the top of the test stand, and a support plate is slidably connected to the top of the through slot. The bottom of the support plate contacts the probe assembly. Evenly distributed springs are fixedly connected to the bottom of the support plate, and the bottom ends of the springs are connected to the inner wall of the test stand. A mounting bracket is fixedly installed on the top of the test stand. A bending rod is rotatably connected to the front of the mounting bracket, and a linkage shaft is hinged to the bending rod. A lifting shaft is fixedly installed on the front of the mounting bracket, and the other end of the linkage shaft is hinged to the lifting shaft. A sealing cover is detachably connected to the bottom of the lifting shaft. The sealing cover is transparent, and its bottom contacts the support plate. Metal contacts are installed on both the bottom of the support plate and the inner wall of the test stand, with the positions of the two metal contacts corresponding to each other.

[0007] As a further description of the above technical solution: the top of the support plate is provided with a fitting groove.

[0008] As a further description of the above technical solution: the bottom of the support plate is fixedly installed with evenly distributed guide shafts, and the guide shafts are slidably connected to the inner wall of the test platform.

[0009] As a further description of the above technical solution: a sponge sleeve is fixedly installed on the bent rod, and the sponge sleeve has anti-slip texture.

[0010] As a further description of the above technical solution: a buzzer is fixedly installed on the right side of the test stand.

[0011] As a further description of the above technical solution: two limiting shafts are fixedly installed on the top of the test platform, and the sealing cover is slidably connected to the limiting shafts.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] In this invention, the combination of a bending rod and a linkage shaft enables convenient pressing and resetting of the sealing cover. The operation is simple and intuitive, significantly improving testing efficiency. The design of the sealing cover effectively shields the PCBA board, preventing accidental damage to operators caused by explosions or other unexpected events during testing. It also has a shielding function, reducing the impact of external interference on test results and improving the safety and accuracy of testing. Furthermore, the vertically movable support plate can automatically power on and off via metal contacts, further enhancing safety. The overall structure is reasonably designed, with high functional integration, simplifying the operation process and reducing usage costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the test platform of this utility model.

[0017] Explanation of the labels in the diagram:

[0018] 1. Test stand; 2. Tester; 3. Probe set; 4. Through slot; 5. Support plate; 6. Spring; 7. Mounting bracket; 8. Bending rod; 9. Linkage shaft; 10. Lifting shaft; 11. Sealing cover; 12. Metal contact; 13. Fitting groove; 14. Guide shaft; 15. Sponge sleeve; 16. Buzzer; 17. Limiting shaft. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0020] Please see Figures 1-3 This utility model discloses a PCBA board testing fixture, comprising a test platform 1, a tester 2, and a probe assembly 3. The probe assembly 3 is installed inside the test platform 1. The tester 2 is located on the left side of the test platform 1 and is connected to the probe assembly 3 via a cable. A through slot 4 is provided on the top of the test platform 1, and a support plate 5 is slidably connected to the top of the through slot 4. The bottom of the support plate 5 contacts the probe assembly 3. Evenly distributed springs 6 are fixedly connected to the bottom of the support plate 5, and the bottom ends of the springs 6 are connected to the inner wall of the test platform 1. A [missing information - likely a device or component] is fixedly installed on the top of the test platform 1. Mounting bracket 7 has a rotatably connected bending rod 8 on its front side, and a linkage shaft 9 is hinged to the bending rod 8. A lifting shaft 10 is fixedly mounted on the front side of mounting bracket 7. The other end of the linkage shaft 9 is hinged to the lifting shaft 10. A sealing cover 11 is detachably connected to the bottom end of the lifting shaft 10. The sealing cover 11 is transparent and its bottom contacts the support plate 5. Metal contacts 12 are installed on the bottom of the support plate 5 and the inner wall of the test bench 1. The two metal contacts 12 are positioned correspondingly, and both metal contacts 12 are connected to the power output through wires.

[0021] The top of the support plate 5 is provided with a fitting groove 13, and the bottom of the support plate 5 is fixedly installed with evenly distributed guide shafts 14, which are slidably connected to the inner wall of the test bench 1.

[0022] Two limiting shafts 17 are fixedly installed on the top of the test stand 1, and the sealing cover 11 is slidably connected to the limiting shafts 17.

[0023] When PCBA board testing is required, the user places the PCBA board to be tested in the fitting groove 13 on the top of the support plate 5, and then rotates the bending rod 8 downward by 90 degrees. The bending rod 8 drives the lifting shaft 10 to press down through the linkage shaft 9, so that the sealing cover 11 contacts the support plate 5 and is pressed down. At this time, the spring 6 retracts, and the metal contact 12 at the bottom of the support plate 5 contacts the metal contact 12 on the inner wall of the test platform 1, realizing power supply. After power supply, the probe group 3 is connected to the support plate 5, triggering the test of the PCBA board values. The test results are displayed on the tester 2 in real time. The guide shaft 14 at the bottom of the support plate 5 slides on the inner wall of the test platform 1 to ensure the stability and accuracy of the support plate 5 when moving up and down.

[0024] During testing, the sealing cover 11 not only serves a protective function, preventing injury to operators in case of accidents involving the PCBA board during testing, but also acts as a shield, reducing the impact of external interference on the test results. After the test is completed, the operator lifts the bending rod 8 upwards, and the bending rod 8 drives the lifting shaft 10 to reset via the linkage shaft 9. The sealing cover 11 rises accordingly, the spring 6 returns to its original state, and the metal contact 12 disconnects, achieving power-off reset. At this time, the test platform 1 returns to its initial state, and the operator can safely remove the PCBA board. The sealing cover 11 is slidably connected to the top of the test platform 1 via the limiting shaft 17, further ensuring the movement trajectory and sealing effect of the sealing cover 11.

[0025] In this invention, the bending rod 8 and the linkage shaft 9 work together to achieve convenient pressing and resetting of the sealing cover 11. The operation is simple and intuitive, significantly improving testing efficiency. The design of the sealing cover 11 can effectively shield the PCBA board, preventing accidental damage to operators caused by explosions or other unexpected events during the testing process. It also has a shielding function, reducing the impact of external interference on the test results and improving the safety and accuracy of the test. Furthermore, the vertically movable support plate 5 can automatically turn on and off the power through the metal contact 12, further improving safety. The overall structure is reasonably designed, with high functional integration, simplifying the operation process and reducing the cost of use.

[0026] Please see Figure 1 and 2 Among them, a sponge sleeve 15 is fixedly installed on the bent rod 8, and the sponge sleeve 15 has anti-slip texture.

[0027] In this invention, when the user needs to rotate the bending rod 8, the sponge sleeve 15 can serve as a good point of force, and the anti-slip texture can increase friction to prevent the hand from slipping.

[0028] Please see Figure 1 Among them, a buzzer 16 is fixedly installed on the right side of the test stand 1.

[0029] In this invention, the buzzer 16 can be triggered when the power is off during operation, thereby emitting a prompt sound to alert the user.

[0030] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A PCBA board testing fixture, comprising a test stand (1), a tester (2), and a probe assembly (3), wherein the probe assembly (3) is installed inside the test stand (1), and the tester (2) is located on the left side of the test stand (1) and connected to the probe assembly (3) via a cable, characterized in that: The test platform (1) has a through groove (4) on its top. A support plate (5) is slidably connected to the top of the through groove (4). The bottom of the support plate (5) is in contact with the probe assembly (3). A uniformly distributed spring (6) is fixedly connected to the bottom of the support plate (5). The bottom end of the spring (6) is connected to the inner wall of the test platform (1). A mounting bracket (7) is fixedly installed on the top of the test platform (1). A bending rod (8) is rotatably connected to the front of the mounting bracket (7). The bending rod (8) is hinged on the top. A linkage shaft (9) is connected to the front of the mounting bracket (7), and a lifting shaft (10) is fixedly installed on the front. The other end of the linkage shaft (9) is hinged to the lifting shaft (10). A sealing cover (11) is detachably connected to the bottom end of the lifting shaft (10). The sealing cover (11) is transparent. The bottom of the sealing cover (11) is in contact with the support plate (5). Metal contacts (12) are installed on the bottom of the support plate (5) and the inner wall of the test bench (1). The two metal contacts (12) are in corresponding positions.

2. The PCBA board testing fixture according to claim 1, characterized in that: The top of the support plate (5) is provided with a fitting groove (13).

3. The PCBA board testing fixture according to claim 1, characterized in that: The bottom of the support plate (5) is fixedly installed with evenly distributed guide shafts (14), which are slidably connected to the inner wall of the test bench (1).

4. A PCBA board testing fixture according to claim 1, characterized in that: A sponge sleeve (15) is fixedly installed on the bent rod (8), and the sponge sleeve (15) has anti-slip texture.

5. A PCBA board testing fixture according to claim 1, characterized in that: A buzzer (16) is fixedly installed on the right side of the test stand (1).

6. A PCBA board testing fixture according to claim 1, characterized in that: Two limiting shafts (17) are fixedly installed on the top of the test stand (1), and the sealing cover (11) is slidably connected to the limiting shafts (17).

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