FPC function detection tool with precision connector

Abstract

The utility model discloses an FPC function detection tool with a precision connector, and relates to the FPC detection technology field, the FPC function detection tool comprises a pedestal, the upper end of the pedestal is fixedly connected with a work bench, the front end of the work bench and the upper end of the pedestal are fixedly connected with a control device, the rear side of the upper end of the work bench is fixedly connected with a fixed plate, and the fixed plate is fixedly connected with the precision connector. A first sliding groove is formed in the front end of the fixing plate, a first threaded rod is rotationally installed in the first sliding groove, the first threaded rod is driven to rotate by rotating a first rotating disc, the first threaded rod rotates to drive a lifting block to move up and down, and therefore two detection probes can be driven to move up and down; the two detection probes are respectively contacted with the pins on the connector and the test points on the FPC, and then the control device sends a detection signal to the detection board so as to carry out conductivity detection on the detection board, and feeds back detection data to the control device for analysis and processing, so that whether the FPC has the conditions of poor contact, pseudo soldering, short circuit and the like or not is judged.

Description

Technical Field

[0001] This utility model relates to the field of FPC testing technology, specifically to an FPC functional testing fixture with a precision connector. Background Technology

[0002] FPC, or flexible printed circuit board, is a highly reliable and flexible printed circuit board made of polyimide or polyester film as the substrate. It features high wiring density, light weight, thinness, and good bending ability. The combination of FPC and precision connectors can ensure efficient electrical connection of the circuit, thereby providing stable current and signal transmission and preventing interference or failure during equipment operation.

[0003] When FPCs and precision connectors are combined, they can be connected to other electronic components or circuit boards. However, the contact points of precision connectors are small and dense. During manufacturing or assembly, poor contact, cold solder joints, and short circuits may occur, which may lead to problems such as intermittent operation, signal interruption, or functional failure when electronic devices are in use. However, these problems are closely related to conductivity. Therefore, conductivity testing can determine whether a good electrical path has been formed. Based on this, this solution provides an FPC functional testing fixture with precision connectors to solve the above-mentioned problems. Utility Model Content

[0004] To address the aforementioned technical problems, a functional testing fixture for an FPC with a precision connector is provided. This technical solution solves the problem mentioned in the background art that while an FPC and a precision connector can be connected to other electronic components or circuit boards, the contact points of the precision connector are small and dense. During manufacturing or assembly, poor contact, cold solder joints, and short circuits may occur, leading to problems such as intermittent operation, signal interruption, or functional failure when the electronic device is in use. However, these problems are closely related to conductivity. Therefore, conductivity testing can determine whether a good electrical path has been formed.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an FPC functional testing fixture with a precision connector, comprising a base, a worktable fixedly connected to the upper end of the base, a control device fixedly connected to the front end of the worktable and the upper end of the base, a fixing plate fixedly connected to the rear side of the upper end of the worktable, a first sliding groove provided at the front end of the fixing plate, a first threaded rod rotatably installed inside the first sliding groove, a first connecting rod fixedly connected to the upper end of the first threaded rod, the upper end of the first connecting rod extending through to the top of the fixing plate and fixedly connected to a first turntable, a lifting block threadedly connected to the outer surface of the first threaded rod, a mounting plate fixedly connected to the front end of the lifting block, a detection plate fixedly installed at the lower end of the mounting plate, detection probes provided on both the left and right sides of the lower end of the detection plate, a support block fixedly connected to the front side of the upper end of the worktable, a second sliding groove provided at the upper end of the support block, and a placement platform fixedly connected to the upper end of the support block and the left and right sides of the second sliding groove.

[0006] Preferably, a second threaded rod is rotatably mounted inside the second groove, and a second connecting rod is fixedly connected to the left end of the second threaded rod. The left end of the second connecting rod extends through to the outside of the support block and is fixedly connected to a second turntable.

[0007] Preferably, a movable block is threadedly connected to the outer surface of the second threaded rod, a connecting block is fixedly connected to the upper right side of the support block, and limiting components are provided on both the left and right sides of the upper end of the support block, with the two limiting components located at the upper ends of the connecting block and the movable block, respectively.

[0008] Preferably, the limiting component includes a fixed frame, which is fixedly connected to the upper end of the moving block and the connecting block. The fixed frame has a pressure plate inside, and a third threaded rod is rotatably installed on the front side of the inside of the fixed frame. The outer surface of the third threaded rod is threadedly connected to the front inner side of the pressure plate.

[0009] Preferably, the upper end of the third threaded rod is fixedly connected to a third connecting rod, the upper end of the third connecting rod extends through to the top of the fixed frame and is fixedly connected to a third turntable, and a sliding rod is fixedly connected to the inner rear side of the fixed frame, and the outer surface of the sliding rod is slidably connected to the inner rear side of the pressure plate.

[0010] Preferably, an FPC body is placed on the upper end of the placement platform, a connector body is provided on the right end of the FPC body, and the lower end of the connector body abuts against the lower end of the right-side fixing frame.

[0011] Compared with the prior art, this utility model provides an FPC functional testing fixture with a precision connector, which has the following advantages:

[0012] This invention rotates a first turntable to drive a first threaded rod to rotate, which in turn drives a lifting block to move up and down. This, in turn, drives two detection probes to move up and down. The two detection probes contact the pins on the connector body and the test points on the FPC body, respectively. Then, the control device sends a detection signal to the detection board to perform a continuity test. The detection data is then fed back to the control device for analysis and processing to determine whether the FPC has poor contact, cold solder joints, short circuits, or other issues. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the structure of the fixing plate in this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the support block in this utility model;

[0016] Figure 4 This is a schematic diagram of the limiting component in this utility model.

[0017] The numbers on the map are:

[0018] 1. Base; 2. Workbench; 3. Control device; 4. Fixing plate; 5. First slide groove; 6. First threaded rod; 7. First connecting rod; 8. First turntable; 9. Lifting block; 10. Mounting plate; 11. Detection plate; 12. Detection probe; 13. Support block; 14. Second slide groove; 15. Second threaded rod; 16. Second connecting rod; 17. Second turntable; 18. Moving block; 19. Connecting block; 20. Limiting assembly; 201. Fixing frame; 202. Pressure plate; 203. Third threaded rod; 204. Slide rod; 205. Third connecting rod; 206. Third turntable; 21. Placement platform; 22. FPC body; 23. Connector body. Detailed Implementation

[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0020] Reference Figures 1-4As shown, an FPC functional testing fixture with precision connectors includes a base 1, a worktable 2 fixedly connected to the upper end of the base 1, a control device 3 fixedly connected to the front end of the worktable 2 and the upper end of the base 1, the control device 3 being electrically connected to a testing plate 11 and a testing probe 12, a fixing plate 4 fixedly connected to the rear side of the upper end of the worktable 2, a first sliding groove 5 formed at the front end of the fixing plate 4, a first threaded rod 6 rotatably mounted inside the first sliding groove 5, a first connecting rod 7 fixedly connected to the upper end of the first threaded rod 6, the upper end of the first connecting rod 7 extending through to the top of the fixing plate 4 and fixedly connected to a first turntable 8, by rotating the first turntable 8 driving the first threaded rod 6 to rotate, causing the lifting block 9 to move up and down along the first sliding groove 5, thereby realizing flexible adjustment of the height of the testing plate 11 and the testing probe 12 to adapt to the testing requirements of FPCs of different thicknesses, the outer surface of the first threaded rod 6 being threadedly connected to the lifting block 9, the front of the lifting block 9... A mounting plate 10 is fixedly connected to the end of the workbench 2. A detection plate 11 is fixedly installed at the lower end of the mounting plate 10. Detection probes 12 are provided on both the left and right sides of the lower end of the detection plate 11. Since the detection points on the FPC body 22 and the pins on the connector body 23 are at different horizontal positions, the two detection probes 12 are of different lengths, so that they can accurately contact the detection points on the FPC body 22 and the pins on the connector body 23, ensuring effective transmission of detection signals. A support block 13 is fixedly connected to the front side of the upper end of the workbench 2. A second slide groove 14 is opened at the upper end of the support block 13. Placement platforms 21 are fixedly connected to the upper end of the support block 13 and the left and right sides of the second slide groove 14. A second threaded rod 15 is rotatably installed inside the second slide groove 14. A second connecting rod 16 is fixedly connected to the left end of the second threaded rod 15. The left end of the second connecting rod 16 passes through the outside of the support block 13 and is fixedly connected to a second turntable 17.

[0021] Reference Figures 3-4As shown, a movable block 18 is threadedly connected to the outer surface of the second threaded rod 15. A connecting block 19 is fixedly connected to the upper right side of the support block 13. Limiting components 20 are provided on both the left and right sides of the upper end of the support block 13. The two limiting components are located at the upper ends of the connecting block 19 and the movable block 18, respectively. The limiting component 20 includes a fixed frame 201, which is fixedly connected to the upper ends of the movable block 18 and the connecting block 19. A pressure plate 202 is provided inside the fixed frame 201. A third threaded rod 203 is rotatably installed on the front side of the interior of the fixed frame 201. The outer surface of the third threaded rod 203 is threadedly connected to the front interior of the pressure plate 202. A third connecting rod 205 is fixedly connected to the upper end of the third threaded rod 203. The upper end of the third connecting rod 205 extends through to the top of the fixed frame 201 and is fixedly connected to a third turntable 206. By rotating the third turntable 206, the third threaded rod 203 is rotated. The pressure plate 202 moves up and down under the limiting action of the slide rod 204, thereby securing the FPC body 22 and the connector body 23. The fixing force can be flexibly adjusted to ensure the stability of the FPC body 22 and the connector body 23 during the test, thus improving the accuracy of the test results. The slide rod 204 is fixedly connected to the rear side of the fixed frame 201. The outer surface of the slide rod 204 is slidably connected to the rear interior of the pressure plate 202. The FPC body 22 is placed on the upper end of the placement platform 21. The connector body 23 is set on the right end of the FPC body 22. The lower end of the connector body 23 abuts against the lower end of the right fixed frame 201. When it is necessary to contact the test point, the FPC body 22 and the connector body 23 can be moved to a suitable position so that the test point on the FPC body 22 and the pin on the connector are directly below the two test probes 12.

[0022] The working principle and usage process of this utility model are as follows: During use, the product to be tested is placed on the placement platform 21, with the FPC body 22 in contact with the upper end of the placement platform 21. The connector body 23 is located inside the right-side fixed frame 201. Then, by rotating the right-side third turntable 206, the right-side pressure plate 202 is moved downwards, thereby limiting the connector body 23. Next, according to the size of the FPC body 22, the second turntable 17 is rotated. The second turntable 17 drives the second threaded rod 15 to rotate via the second connecting rod 16, thereby causing the moving block 18 to move left and right. The left and right movement of the moving block 18 can drive the left-side limiting component 20 to move. After moving it to the appropriate position, the left-side third turntable is rotated, causing the left-side pressure plate 202 to move downwards, thereby limiting the FPC body 22. Then, the first turntable 8 is rotated, and the first turntable 8 drives the first threaded rod 6 to rotate via the first connecting rod 7. The lifting block 9 moves downward, which in turn moves the mounting plate 10 downward, causing the two detection probes 12 at the lower end of the detection board 11 to move downward and make contact with the pins connected to its body and the test points of the FPC body 22. Then, the control device 3 controls the detection board 11 to output a DC current signal of a specific magnitude. The detection board 11 generates a stable DC current signal according to the parameters set by the control device 3 and transmits the signal to the detection probes 12. If the circuit is well connected, the voltage signal collected by the detection probes 12 will conform to the characteristics of normal conduction. If there are problems such as poor contact, the collected signal will show an abnormality. Then, the detection board 11 calculates the resistance value of the FPC circuit according to Ohm's law based on the collected voltage signal and the known output current signal. After that, the detection board 11 transmits the processed detection result data to the control device 3 and displays the result on the display screen of the control device 3.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A functional testing fixture for FPCs with precision connectors, characterized in that: Includes a base (1), with a workbench (2) fixedly connected to the upper end of the base (1). A control device (3) is fixedly connected to the front end of the workbench (2) and the upper end of the base (1). A fixing plate (4) is fixedly connected to the rear side of the upper end of the workbench (2). A first sliding groove (5) is provided at the front end of the fixing plate (4). A first threaded rod (6) is rotatably installed inside the first sliding groove (5). A first connecting rod (7) is fixedly connected to the upper end of the first threaded rod (6). The upper end of the first connecting rod (7) extends through to the top of the fixing plate (4) and is fixedly connected to a first rotating... The disc (8) has a lifting block (9) threadedly connected to the outer surface of the first threaded rod (6). The front end of the lifting block (9) is fixedly connected to an installation plate (10). The lower end of the installation plate (10) is fixedly installed with a detection plate (11). The lower left and right sides of the detection plate (11) are provided with detection probes (12). The upper front side of the workbench (2) is fixedly connected to a support block (13). The upper end of the support block (13) is provided with a second slide groove (14). The upper end of the support block (13) and the left and right sides of the second slide groove (14) are fixedly connected to a placement platform (21).

2. The FPC functional testing fixture with a precision connector according to claim 1, characterized in that: The second threaded rod (15) is rotatably mounted inside the second chute (14). The left end of the second threaded rod (15) is fixedly connected to the second connecting rod (16). The left end of the second connecting rod (16) extends through to the outside of the support block (13) and is fixedly connected to the second turntable (17).

3. The FPC functional testing fixture with a precision connector according to claim 2, characterized in that: The outer surface of the second threaded rod (15) is threaded with a movable block (18), and the upper right side of the support block (13) is fixedly connected with a connecting block (19). The upper left and right sides of the support block (13) are provided with limiting components (20), and the two limiting components are located at the upper ends of the connecting block (19) and the movable block (18), respectively.

4. The FPC functional testing fixture with a precision connector according to claim 3, characterized in that: The limiting component (20) includes a fixed frame (201), which is fixedly connected to the upper end of the moving block (18) and the connecting block (19). The fixed frame (201) is provided with a pressure plate (202) inside. A third threaded rod (203) is rotatably installed on the front side of the interior of the fixed frame (201). The outer surface of the third threaded rod (203) is threadedly connected to the front side of the pressure plate (202).

5. The FPC functional testing fixture with a precision connector according to claim 4, characterized in that: The upper end of the third threaded rod (203) is fixedly connected to a third connecting rod (205). The upper end of the third connecting rod (205) extends through to the top of the fixed frame (201) and is fixedly connected to a third turntable (206). The inner rear side of the fixed frame (201) is fixedly connected to a sliding rod (204). The outer surface of the sliding rod (204) is slidably connected to the rear inner side of the pressure plate (202).

6. The FPC functional testing fixture with a precision connector according to claim 1, characterized in that: An FPC body (22) is placed on the upper end of the placement platform (21), and a connector body (23) is provided on the right end of the FPC body (22). The lower end of the connector body (23) abuts against the lower end of the right-side fixing frame (201).

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