One-to-two PCBA (Printed Circuit Board Assembly) test frame

Abstract

The utility model relates to a one-to-two PCBA test frame in the detection field, which comprises a base, a test board is arranged on the base, a top plate is arranged above the test board, two test stations are arranged on the top of the test board, the test stations are used for placing PCBA boards, two pressing assemblies are arranged on the top plate, the two pressing assemblies correspond to the two test stations respectively, and the PCBA boards are placed on the two pressing assemblies. A probe plate and a test probe are arranged on the test station, pins of the test probe can be in contact with test points on the test probe, a panel display screen is arranged at the front end of the test board, a test program controller is arranged in the base, and program control physical keys are arranged on the surface of the test board. The program control physical button and the test probe are electrically connected with the test program controller, data transmission is carried out between the panel display screen and the test program controller, and two PCBA boards can be tested at the same time. Compared with a traditional single-station testing frame, the testing efficiency is remarkably improved, the testing period is effectively shortened, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of testing, and in particular to a one-to-two PCBA test fixture. Background Technology

[0002] PCBA test fixtures are essential equipment in the electronics manufacturing industry for testing the performance of printed circuit board assemblies (PCBAs). By simulating real-world working environments, they perform electrical performance tests on the electronic components on the PCBA boards to ensure their quality and reliability. PCBA test fixtures play a crucial role in the electronics production process, serving as a key link in ensuring product quality and improving production efficiency.

[0003] PCBA test fixtures come in various structures, but most are relatively simple in design and have a single function. They typically include a test bench with test stations for placing the PCBA board and test probes for making electrical connections to the PCBA board. During testing, the test probes contact test points on the PCBA board, and the test program controller performs the tests on the PCBA board.

[0004] Existing PCBA test fixtures have two main drawbacks. First, most test fixtures typically have only one test station, meaning only one PCBA board can be tested at a time. In the mass production of electronic products such as automotive navigation systems, this single-station test fixture cannot meet the demands for efficient testing, limiting the improvement of production efficiency. Second, when existing PCBA test fixtures are used for testing automotive navigation systems, the testing process becomes complex and cumbersome because the PCBA board needs to be tested together with the vehicle screen to verify its overall functionality and compatibility. Testers not only need to install the PCBA board on the test fixture but also assemble and connect the vehicle screen to the fixture. This not only increases the difficulty and time cost of testing but may also affect the accuracy of test results due to improper operation. Utility Model Content

[0005] In order to overcome the shortcomings of existing technical solutions, this utility model provides a one-to-two PCBA test frame, which can effectively solve the technical problems of low production efficiency and troublesome assembly when testing vehicle navigation systems.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A one-to-two PCBA test fixture includes a base, a test platform mounted on the base, and a top plate above the test platform. The test platform has two test stations for placing PCBA boards. The top plate has two clamping components, each corresponding to one of the two test stations. When a PCBA board is placed in a test station, the clamping components secure it in place. Each test station has a pin plate and test probes, with the pins of the test probes contacting test points. A panel display screen is located at the front of the test platform, displaying a data interface for connecting to the PCBA boards. A test program controller is located inside the base, and physical program control buttons are located on the surface of the test platform. The physical program control buttons and test probes are electrically connected to the test program controller. Data transmission occurs between the panel display screen and the test program controller. The physical program control buttons control the test program controller to send commands regarding vehicle driving status to the PCBA boards.

[0008] Furthermore, the test station is provided with more than three support feet, which correspond to the fixing screw holes on the PCBA board, and the top of the support feet is provided with a positioning protrusion that can be inserted into the fixing screw holes on the PCBA board.

[0009] Furthermore, a current detection meter is provided on the top plate, and the current detection meter is equipped with two probes. The two probes extend into the test station, and when the PCBA board is placed in the test station, the probes can contact the positive and negative terminals on the test probes.

[0010] Furthermore, the clamping assembly includes a fixed base, a tensioning handle, a lower pressure plate, and a push rod. The fixed base is disposed on the top plate. One end of the tensioning handle is rotatably connected to the fixed base. A sleeve is disposed at the end of the fixed base away from the tensioning handle. The push rod passes through the sleeve. The lower pressure plate is disposed at the end of the push rod near the test station. The end of the push rod away from the lower pressure plate is rotatably connected to the middle of the tensioning handle through a connecting buckle. When the tensioning handle is flipped forward, the connecting buckle drives the push rod to move towards the test station, so that the lower pressure plate presses the PCBA board on the test station.

[0011] Furthermore, a pressure bar is provided at one end of the lower pressure plate near the test station. When the lower pressure plate approaches the test station, the pressure bar presses the PCBA board into the test station.

[0012] Furthermore, a guide post is provided between the top plate and the test platform, and a sliding sleeve is provided on the edge of the lower pressure plate. The sliding sleeve and the guide post are slidably engaged, so that the lower pressure plate moves along the direction of the guide post.

[0013] Furthermore, there are two panel displays, each corresponding to one of the two test stations.

[0014] Compared with existing technologies, the advantages of this invention are: it sets up two testing stations, enabling simultaneous testing of two PCBA boards. Compared with traditional single-station testing racks, it significantly improves testing efficiency, making it particularly suitable for mass production of electronic products, effectively shortening the testing cycle and reducing production costs. By simulating a terminal display in a car through a panel display screen, it achieves data connection and display with the PCBA board, simplifying the testing process, reducing operational difficulty, avoiding testing errors caused by improper assembly and connection, and improving testing accuracy and reliability. The panel display screen transmits data with the test program controller, enabling real-time display of data and results during the testing process. Testers can observe the data on the display screen to promptly identify and handle abnormalities, ensuring smooth testing and significantly improving testing efficiency, reducing operational difficulty, and enhancing testing accuracy and reliability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a three-dimensional schematic diagram of the clamping component in this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the base, test platform, and top plate of this utility model;

[0018] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0019] Figure 5 This is the right view of the present invention;

[0020] The following are the labels in the diagram: 1-base, 2-test platform, 3-top plate, 4-test station, 5-clamping assembly, 501-fixed seat, 502-tightening handle, 503-lower pressure plate, 504-push rod, 505-connecting buckle, 506-pressure bar, 6-needle plate, 7-test probe, 8-panel display screen, 9-support foot, 901-positioning protrusion, 10-current detector, 11-guide post, 12-sliding sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The following is combined Figures 1-5The present invention provides a detailed description of a one-to-two PCBA test fixture:

[0023] A one-to-two PCBA test fixture includes a base 1, a test platform 2 mounted on the base 1, and a top plate 3 above the test platform 2. The top plate 3 is fixedly connected to the base 1 via support columns. The test platform 2 has two test stations 4 for placing PCBA boards. The top plate 3 has two clamping components 5, each corresponding to one of the two test stations 4. When a PCBA board is placed in a test station 4, the clamping components 5 can fix the PCBA board in the test station 4. The test station 4 is equipped with a pin plate 6 and test probes 7. The pins of the test probes 7 can contact the test points on the test probes 7. A panel display screen 8 is located at the front end of the test platform 2. The panel display screen 8 has a data interface for connecting to the PCBA boards. A test program controller is located inside the base 1. The surface of the test platform 2 has physical buttons for program control. The physical buttons for program control and the test probes 7 are electrically connected to the test program controller. Data transmission occurs between the panel display screen 8 and the test program controller.

[0024] Two test stations (4) are set up, enabling simultaneous testing of two PCBA boards. Compared to traditional single-station test racks, this design significantly improves testing efficiency, especially suitable for mass production of electronic products, effectively shortening the testing cycle and reducing production costs. The panel display (8) simulates a terminal display in a car, achieving data connection and display with the PCBA board, simplifying the testing process, reducing operational difficulty, avoiding testing errors caused by improper assembly and connection, and improving testing accuracy and reliability. The panel display (8) transmits data with the test program controller, displaying data and results in real time during the testing process. Testers can observe the data on the display to promptly identify and handle anomalies, ensuring smooth testing and significantly improving testing efficiency, reducing operational difficulty, and enhancing testing accuracy and reliability. Physical buttons control the test program controller to send commands regarding the car's driving status to the PCBA board, allowing testers to easily control the test program's operation, such as starting, stopping, and reversing the test. This design simplifies the testing operation process and improves testing efficiency.

[0025] The test station 4 is equipped with four support feet 9, which correspond to the fixing screw holes on the PCBA board. The top of the support foot 9 is equipped with a positioning protrusion 901 that can be inserted into the fixing screw hole on the PCBA board, which enhances the support stability of the test station 4 for the PCBA board. The positioning protrusion 901 enables the PCBA board to be quickly positioned and fixed, simplifies the test preparation process, and improves the test efficiency. The clamping assembly 5 includes a fixed base 501, a tensioning handle 502, a lower pressure plate 503, and a push rod 504. The fixed base 501 is mounted on the top plate 3. One end of the tensioning handle 502 is rotatably connected to the fixed base 501. A sleeve is provided at the end of the fixed base 501 away from the tensioning handle 502. The push rod 504 passes through the sleeve. The lower pressure plate 503 is located at the end of the push rod 504 near the test station 4. The end of the push rod 504 away from the lower pressure plate 503 is rotatably connected to the middle of the tensioning handle 502 via a connecting buckle 505. When the tensioning handle 502 flips forward, the connecting buckle 505 drives the push rod 504 to move towards the test station 4, causing the lower pressure plate 503 to press the PCBA board on the test station 4. Two panel displays 8 are provided, each corresponding to one of the two test stations 4, allowing the tester to simultaneously observe the test data and results on both test stations 4, further improving test efficiency. A pressure bar 506 is provided at one end of the lower pressure plate 503 near the test station 4. When the lower pressure plate 503 approaches the test station 4, the pressure bar 506 presses the PCBA board into the test station 4. The pressure bar 506 can press the PCBA board into the test station 4 more effectively, thus improving the stability of the test.

[0026] Furthermore, a current meter 10 is installed on the top plate 3, with two probes extending into the test station 4. When the PCBA board is placed in the test station 4, the probes can contact the positive and negative terminals of the test probes 7, enabling real-time monitoring of the current status of the PCBA board during operation. This design helps to detect current anomalies promptly, ensuring that the electrical performance of the PCBA board meets design requirements and improving the accuracy and reliability of the test. A guide post 11 is provided between the top plate 3 and the test stage 2, and a sliding sleeve 12 is provided on the edge of the lower pressure plate 503. The sliding sleeve 12 slides with the guide post 11, allowing the lower pressure plate 503 to move along the direction of the guide post 11. This sliding engagement ensures the stability and accuracy of the lower pressure plate 503 during movement, reducing the risk of damage due to improper operation.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A two-in-one PCBA test rack, comprising a base, a test table is arranged on the base, and a top plate is arranged above the test table, characterized in that: The test bench is provided with two test stations for placing PCBA boards, two compression assemblies are arranged on the top plate and correspond to the two test stations respectively, the PCBA boards can be fixed in the test stations by the compression assemblies after being placed in the test stations, a needle plate and test probes are arranged on the test stations, the pins of the test probes can contact test points on the test probes, a panel display screen is arranged at the front end of the test bench, a data interface for connecting the PCBA boards is arranged on the panel display screen, a test program controller is arranged in the base, program control physical buttons are arranged on the surface of the test bench, the program control physical buttons and the test probes are electrically connected with the test program controller, data transmission is performed between the panel display screen and the test program controller, and the program control physical buttons are used for controlling the test program controller to send instructions of the automobile driving state to the PCBA boards.

2. The one-after-another PCBA test rack of claim 1, wherein: More than three supporting feet are arranged on the test station and correspond to the fixed screw holes on the PCBA boards, and a positioning protrusion is arranged at the top end of the supporting feet and can be inserted into the fixed screw holes on the PCBA boards.

3. The one-after-another PCBA test rack of claim 1, wherein: A current detection meter is arranged on the top plate, two probes are arranged on the current detection meter, and the probes can contact the positive and negative electrodes on the test probes after the PCBA boards are placed in the test stations.

4. The one-after-another PCBA test rack of any one of claims 1-3, wherein: The compression assembly comprises a fixed seat, a tension handle, a lower pressing plate and a push rod, the fixed seat is arranged on the top plate, one end of the tension handle is rotatably connected with the fixed seat, a sleeve is arranged at the end of the fixed seat away from the tension handle, the push rod passes through the sleeve, the lower pressing plate is arranged at one end of the push rod close to the test station, and the end of the push rod away from the lower pressing plate is rotatably connected with the middle part of the tension handle through a connecting buckle, when the tension handle is turned forward, the connecting buckle drives the push rod to move towards the test station, so that the lower pressing plate compresses the PCBA boards on the test station.

5. The one-after-another PCBA test rack of claim 4, wherein: One end of the lower pressing plate close to the test station is provided with a pressing rod, and the pressing rod compresses the PCBA boards into the test station when the lower pressing plate approaches the test station.

6. The one-after-another PCBA test rack of claim 4, wherein: A guide column is arranged between the top plate and the test bench, a sliding sleeve is arranged at the edge of the lower pressing plate, the sliding sleeve is slidably connected with the guide column, and the lower pressing plate moves along the direction of the guide column.

7. The one-after-another PCBA test rack of any one of claims 1-3, wherein: Two panel display screens are arranged, and the two panel display screens correspond to the two test stations respectively.

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