FPC to FPCA false pressing test tool
By designing the FPC to FPCA pseudo-pressure testing tooling, using the FPC test board and the gold finger of the FPCA to be tested for a pseudo-fit connection, the problem that traditional testing methods cannot effectively test flexible FPCA, achieving high coverage and full-function testing, reducing costs and improving the test pass-through rate.
Patent Information
- Application Number
- CN202421507428.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-06-28
AI Technical Summary
Traditional probe testing cannot effectively test flexible FPCA because its test points are insufficient, the detection position is small and does not allow the test traces, resulting in high cost of testing equipment and low test pass-through rate.
A FPC to FPCA pseudo-compression testing tooling was designed. By setting up an FPC test board, the tiny and dense gold fingers of the FPCA to be tested were used as the detection position, and each gold finger was connected through one end of the special FPC FPC with a pseudo-fitting of the gold finger, and the other end of the FPC connection line was enlarged into a test point or connector or the distal end to fit the metal fingers again to achieve high coverage and full-function testing.
High coverage and full-function testing are achieved, reducing the cost of the test device and improving the test pass-through rate, which can usually reach more than 97%, while avoiding traces of gold fingers to be tested on FPCA.
Smart Images
Figure CN223038103U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of circuit board testing, and particularly relates to a false press-fitting test tooling for FPC to FPCA. Background Technique
[0002] When the circuit board is processed and produced, in order to ensure factory shipment, the circuit board needs to be tested. The traditional testing methods are probe or conductive adhesive type testing methods, which require sufficient test points, ensure large detection position dimensions, allow test traces, have sufficient board thickness and are not easily pierced, etc. However, for flexible FPCA with insufficient test points, small detection positions, and not allowing test traces to be caused, it is impossible to perform testing in the traditional way. The traditional probe method not only has a high cost of the testing device, but also has a low test through rate when used. Content of the Utility Model
[0003] The purpose of the utility model is to provide a false press-fitting test tooling for FPC to FPCA to solve the problems in the above background technique, that is, the traditional testing methods are probe or conductive adhesive type testing methods, which require sufficient test points, ensure large detection position dimensions, allow test traces, have sufficient board thickness and are not easily pierced, etc. However, for flexible FPCA with insufficient test points, small detection positions, and not allowing test traces to be caused, it is impossible to perform testing in the traditional way. The traditional probe method not only has a high cost of the testing device, but also has a low test through rate when used.
[0004] To achieve the above object, the present utility model provides the following technical solution: An FPC to FPCA pseudo-pressing test tooling, including a placement table, a sliding pull plate is slidably installed on the side of the placement table, a pin is inserted at a position on the upper surface of the placement table opposite to the sliding pull plate, a plurality of jacks for cooperating with the pin are opened on the sliding pull plate, a plurality of connecting plates are fixedly installed on the sliding pull plate, both ends of the connecting plate are respectively provided with cooperating plates, the same-side plurality of cooperating plates are fixed with the same lower sliding plate, a plurality of connecting blocks are fixed on the upper surface of the lower sliding plate, the same-side plurality of connecting blocks are fixed with the same upper clamping plate, a strip-shaped hole for the movement of the connecting block is opened on the surface of the placement table, column rods are fixedly installed at four corner positions on the upper surface of the placement table, a top plate is fixedly installed at the top ends of the four column rods, a cylinder is installed on the top plate, a piston rod of the cylinder is fixedly installed with an installation frame at the bottom end, a sliding seat is slidably arranged in the installation frame, a groove is opened on one side surface of the sliding seat and an adjusting clamping plate is movably arranged in the groove, a plurality of adjusting clamping grooves for cooperating with the adjusting clamping plate are opened on the inner wall of the installation frame, an installation plate is fixedly installed on the lower surface of the sliding seat, an FPC test board is arranged in a fitting manner on the lower surface of the installation plate, bolts are threadedly installed on the FPC test board, and a plurality of threaded grooves for cooperating with the bolts are opened on the lower surface of the installation plate.
[0005] With the above solution, by setting the FPC test board, using the tiny and dense gold fingers of the FPCA to be tested as the detection positions, each gold finger is connected through the pseudo-pressing of the gold fingers at one end of the special FPC, and the other end of the connecting wire of the FPC is enlarged into a test point or a connector or the distal end and is pseudo-pressed and connected to the gold finger again; realizing the transmission of the FPCA circuit signal from the FPCA gold finger to the special FPC, adopting the FPC to FPCA pseudo-pressing test technology, high coverage rate and full-function test can be achieved, and the FPC test board can be adjusted horizontally forward and backward and left and right, which is suitable for the testing of different specifications and types of FPCAs, improving the universality. By setting the sliding pull plate, using the sliding of the sliding pull plate in cooperation with the connecting plate and the cooperating plate, and then enabling the lower sliding plate to drive the upper clamping plate to move through the connecting block, the FPCA to be tested can be fixedly clamped, improving the stability of the test effect.
[0006] In the above solution, it should be noted that using the tiny and dense gold fingers of the FPCA to be tested as the detection positions, each gold finger is connected through the pseudo-pressing of the gold fingers at one end of the special FPC, and the other end of the connecting wire of the FPC is enlarged into a test point or a connector or the distal end and is pseudo-pressed and connected to the gold finger again; realizing the transmission of the FPCA circuit signal from the FPCA gold finger to the special FPC and transmitting it to the test instrument and the terminal device;
[0007] Since the gold fingers of the FPCA are the terminal outputs of the entire circuit network, with complete circuit signals and comprehensive network coverage, the FPC to FPCA pseudo-pressing test technology can achieve high coverage and full-function testing;
[0008] At the same time, the FPC can achieve dense and multi-layer circuit wiring, acting as a bridge for the FPCA under test and the test or transmission terminal functions. It not only has advantages in application cost, but also is relatively simple in technical implementation and design;
[0009] The FPC to FPCA pseudo-pressing test technology is generally paired with visual applications. Therefore, the accuracy of the pseudo-pressing connection is relatively high, resulting in a relatively high test through rate, generally reaching over 97%;
[0010] At the same time, by adopting the pseudo-pressing method, the gold fingers of the FPCA under test and the dedicated FCP gold fingers are in one-to-one area contact, so there is no trace on the gold fingers of the FPCA under test.
[0011] As a preferred implementation manner, limit blocks are fixedly installed at both ends of the lower sliding plate. Limit grooves for the limit blocks to slide are provided on the inner wall of the placement table, and a first spring is fixedly installed in the limit grooves, and the first spring is fixedly connected to the limit blocks.
[0012] By adopting the above scheme, the limit blocks slide in the limit grooves, which can support the movement process of the lower sliding plate, making the lower sliding plate move smoothly and not prone to tilting, improving the movement smoothness. When the two lower sliding plates approach each other, that is, when the two upper clamping plates approach each other to fix the FPCA under test, the first spring deforms. Therefore, after the test is completed, the elasticity of the first spring can be used to drive the two upper clamping plates to quickly move away and reset, improving the operation convenience.
[0013] As a preferred implementation manner, rotating wheels are rotatably installed at both ends of the connecting plate, and wheel grooves for cooperating with the rotating wheels are obliquely provided on the upper surface of the cooperating plate.
[0014] By adopting the above scheme, by using the cooperation of the rotating wheels and the obliquely arranged wheel grooves, the two lower sliding plates can approach or move away from each other when the sliding pull plate moves horizontally.
[0015] As a preferred implementation manner, sliding sleeves are fixedly installed at the four corner positions of the installation frame, and the sliding sleeves are slidably installed on the outer surfaces of the corresponding column rods.
[0016] By adopting the above scheme, the sliding sleeves slide on the surfaces of the column rods, which can support the up and down movement of the installation frame and improve the up and down movement smoothness.
[0017] As a preferred embodiment, a plurality of guide rods are fixed to the inner wall of the mounting frame, and the sliding seat is slidably mounted on the outer surfaces of the plurality of guide rods.
[0018] With the above solution, the arrangement of the guide rods can straighten the sliding of the sliding seat and improve the movement smoothness.
[0019] As a preferred embodiment, a second spring and a telescopic rod are fixedly installed on the inner wall of the groove on the sliding seat, and both the second spring and the telescopic rod are fixedly connected to the adjusting clamping plate.
[0020] With the above solution, by using the second spring in cooperation with the telescopic rod, the elasticity of the second spring can drive the adjusting clamping plate to quickly insert into the adjusting slot, and the telescopic rod can support the movement of the adjusting clamping plate to prevent the adjusting clamping plate from sliding.
[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0022] This FPC to FPCA pseudo-pressing test tooling sets up an FPC test board, uses the tiny and dense gold fingers of the FPCA to be tested as the detection positions, connects each gold finger through the pseudo-bonding of the gold fingers at one end of a dedicated FPC, and magnifies the other end of the connecting wire of the FPC into a test point or a connector or a distal end and then re-bonds to the gold fingers; realizes the transmission of the FPCA circuit signal from the FPCA gold fingers to the dedicated FPC. By adopting the FPC to FPCA pseudo-pressing test technology, high coverage rate and full-function testing can be achieved, and the FPC test board can be adjusted horizontally forward and backward and left and right, which is applicable to the testing of different specifications and types of FPCAs, improving the universality;
[0023] This FPC to FPCA pseudo-pressing test tooling sets up a sliding pull plate, and by using the sliding of the sliding pull plate in cooperation with the connecting plate and the matching plate, the lower sliding plate can drive the upper clamping plate to move through the connecting block, so as to realize the fixed clamping of the FPCA to be tested and improve the stability of the test effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 is a structural schematic diagram of the present utility model;
[0025] Figure 2 is a structural schematic diagram of the cross-section of the placing table of the present utility model;
[0026] Figure 3 is an exploded schematic diagram of the connecting plate and the matching plate of the present utility model;
[0027] Figure 4 is a structural schematic diagram of the mounting frame of the present utility model;
[0028] Figure 5This is a schematic structural diagram of the cross-section of the sliding seat of the present utility model;
[0029] Figure 6 This is a schematic structural diagram of the mounting plate of the present utility model.
[0030] In the figure: 1, placing table; 2, sliding pull plate; 3, pin; 4, connecting plate; 5, mating plate; 6, lower sliding plate; 7, connecting block; 8, upper clamping plate; 9, upright rod; 10, top plate; 11, cylinder; 12, mounting frame; 13, sliding seat; 14, adjusting clamping plate; 15, mounting plate; 16, bolt; 17, FPC test board; 18, limiting block; 19, first spring; 20, runner; 21, sliding sleeve; 22, guide rod; 23, second spring; 24, telescopic rod. Specific embodiments
[0031] Please refer to Figure 1-6 , the present utility model provides an FPC to FPCA pseudo-pressing test tooling, including a placing table 1, a sliding pull plate 2 is slidably installed on the side of the placing table 1, a pin 3 is inserted at a position on the upper surface of the placing table 1 opposite to the sliding pull plate 2, a plurality of jacks for cooperating with the pin 3 are opened on the sliding pull plate 2, a plurality of connecting plates 4 are fixedly installed on the sliding pull plate 2, both ends of the connecting plate 4 are provided with mating plates 5 in cooperation, the same-side plurality of mating plates 5 are fixed with the same lower sliding plate 6, a plurality of connecting blocks 7 are fixed on the upper surface of the lower sliding plate 6, the same-side plurality of connecting blocks 7 are fixed with the same upper clamping plate 8, a strip-shaped hole for the movement of the connecting block 7 is opened on the surface of the placing table 1, upright rods 9 are fixedly installed at the four corner positions on the upper surface of the placing table 1, a top plate 10 is fixedly installed at the tops of the four upright rods 9, a cylinder 11 is installed on the top plate 10, the bottom end of the piston rod of the cylinder 11 is fixedly installed with a mounting frame 12, a sliding seat 13 is slidably arranged in the mounting frame 12, a groove is opened on one side surface of the sliding seat 13 and an adjusting clamping plate 14 is movably arranged in the groove, a plurality of adjusting grooves for cooperating with the adjusting clamping plate 14 are opened on the inner wall of the mounting frame 12, a mounting plate 15 is fixedly installed on the lower surface of the sliding seat 13, an FPC test board 17 is laid on the lower surface of the mounting plate 15 in a fitting manner, a bolt 16 is threadedly installed on the FPC test board 17, and a plurality of threaded grooves for cooperating with the bolt 16 are opened on the lower surface of the mounting plate 15.
[0032] Both ends of the lower sliding plate 6 are fixedly installed with limit blocks 18. The inner wall of the placing table 1 is provided with limit grooves for the limit blocks 18 to slide, and a first spring 19 is fixedly installed in the limit grooves. The first spring 19 is fixedly connected to the limit blocks 18. The limit blocks 18 slide in the limit grooves, which can support the movement process of the lower sliding plate 6, making the lower sliding plate 6 move smoothly and not easily tilt, improving the movement smoothness. When the two lower sliding plates 6 approach each other, that is, when the two upper clamping plates 8 approach each other to fix the FPCA to be tested, the first spring 19 deforms. Therefore, after the test is completed, the elasticity of the first spring 19 can be used to drive the two upper clamping plates 8 to quickly move away and reset, improving the operation convenience.
[0033] Rotating wheels 20 are rotatably installed at both ends of the connecting plate 4. The upper surface of the matching plate 5 is inclinedly provided with wheel grooves for the rotating wheels 20 to cooperate with. By using the rotating wheels 20 and the inclinedly arranged wheel grooves, when the sliding pull plate 2 moves horizontally, the two lower sliding plates 6 can approach or move away from each other.
[0034] Sliding sleeves 21 are fixedly installed at the four corner positions of the installation frame 12. The sliding sleeves 21 are slidably installed on the outer surface of the corresponding column rods 9. The sliding of the sliding sleeves 21 on the surface of the column rods 9 can support the up and down movement of the installation frame 12, improving the up and down movement smoothness.
[0035] A plurality of guide rods 22 are fixed to the inner wall of the installation frame 12. The sliding seat 13 is slidably installed on the outer surface of the plurality of guide rods 22. The arrangement of the guide rods 22 can guide the sliding of the sliding seat 13, improving the movement smoothness.
[0036] The inner wall of the groove on the sliding seat 13 is fixedly installed with a second spring 23 and a telescopic rod 24. Both the second spring 23 and the telescopic rod 24 are fixedly connected to the adjusting clamping plate 14. By using the second spring 23 in cooperation with the telescopic rod 24, the elasticity of the second spring 23 can drive the adjusting clamping plate 14 to quickly insert into the adjusting clamping groove, and the telescopic rod 24 can support the movement of the adjusting clamping plate 14 to prevent the adjusting clamping plate 14 from sliding.
[0037] When in use, the FPCA to be tested is placed on the surface of the placement table 1, the latch 3 is pulled out, and the sliding plate 2 is pulled. The sliding plate 2 drives the connecting plate 4 to move. When the connecting plate 4 moves, the rotating wheel 20 is used to slide in the wheel groove so that the matching plate 5 drives the lower slide plate 6 to move. The lower slide plate 6 drives the upper clamping plate 8 to move through the connecting block 7. The two upper clamping plates 8 move relative to each other to achieve the fixed clamping of the FPCA to be tested. After clamping, the latch 3 is inserted to lock the position of the sliding plate 2, and then the position of the FPC test board 17 is adjusted forward and backward and left and right according to the position of the gold finger on the FPCA to be tested. When adjusting forward and backward, the adjusting clamping plate 14 is toggled so that the adjusting clamping plate 14 squeezes the second spring 23 to contract and disengage from the adjusting slot, thereby unlocking the sliding seat 13, and then the sliding seat 13 is supported to move horizontally forward and backward. After moving to a suitable position, the adjusting clamping plate 14 is released, and the elasticity of the second spring 23 is used to drive the adjustment The card plate 14 is reset and inserted into the adjustment card slot to complete the front and rear position adjustment. When adjusting the left and right position, first screw out the bolt 16 and adjust the left and right position of the FPC test board 17. After adjustment, screw in the bolt 16 to lock it to complete the left and right position adjustment. After adjustment, the cylinder 11 is started to drive the installation frame 12 to move downward, and then drive the FPC test board 17 to move downward through the sliding seat 13 and the installation plate 15, so that the gold fingers of the FPC test board 17 are fitted with the gold fingers of the FPCA to be tested, and the tiny and dense gold fingers of the FPCA to be tested are used as the detection position, and each gold finger is connected through the gold finger pseudo-fitting at one end of the dedicated FPC, and the other end of the FPC connection line is enlarged into a test point or a connector or the far end is again fitted with the gold finger; the FPCA line signal is transmitted from the FPCA gold finger to the dedicated FPC, and then to the test instrument and terminal device to achieve the test.
Claims
1. A FPC to FPCA false press-fit test tool, characterized by: The utility model comprises a placing table (1), a sliding plate (2) is slidably installed on the side of the placing table (1), a latch (3) is inserted at a position of the upper surface of the placing table (1) facing the sliding plate (2), a plurality of sockets for use with the latch (3) are provided on the sliding plate (2), a plurality of connecting plates (4) are fixedly installed on the sliding plate (2), matching plates (5) are provided at both ends of the connecting plate (4), a lower slide plate (6) is fixed between a plurality of matching plates (5) on the same side, a plurality of connecting blocks (7) are fixed on the upper surface of the lower slide plate (6), a plurality of upper clamping plates (8) are fixed between a plurality of connecting blocks (7) on the same side, a strip hole for movement of the connecting blocks (7) is provided on the surface of the placing table (1), and column rods are fixedly installed at the four corners of the upper surface of the placing table (1). (9), the top ends of the four upright rods (9) are fixedly mounted with a same top plate (10), a cylinder (11) is mounted on the top plate (10), a mounting frame (12) is fixedly mounted on the bottom end of the piston rod of the cylinder (11), a sliding seat (13) is slidably arranged in the mounting frame (12), a groove is provided on one side of the sliding seat (13), and an adjustment card plate (14) is movably arranged in the groove, a plurality of adjustment card grooves for use with the adjustment card plate (14) are provided on the inner wall of the mounting frame (12), a mounting plate (15) is fixedly mounted on the lower surface of the sliding seat (13), an FPC test board (17) is bonded to the lower surface of the mounting plate (15), bolts (16) are threadedly mounted on the FPC test board (17), and a plurality of thread grooves for use with the bolts (16) are provided on the lower surface of the mounting plate (15).
2. The FPC to FPCA pseudo-pressing test fixture according to claim 1, characterized in that: Limit blocks (18) are fixedly installed at both ends of the lower slide plate (6), and a limit groove for the limit block (18) to slide is opened on the inner wall of the placement platform (1), and a first spring (19) is fixedly installed in the limit groove, and the first spring (19) is fixedly connected to the limit block (18).
3. The FPC to FPCA pseudo-pressing test fixture according to claim 1, characterized in that: Both ends of the connecting plate (4) are rotatably mounted with rotating wheels (20), and the upper surface of the matching plate (5) is obliquely provided with a wheel groove for matching with the rotating wheel (20).
4. The FPC to FPCA pseudo-pressing test fixture according to claim 1, characterized in that: Sliding sleeves (21) are fixedly installed at the four corners of the installation frame (12), and the sliding sleeves (21) are slidably installed on the outer surface of the column rod (9) at the corresponding position.
5. The FPC to FPCA pseudo-pressing test fixture according to claim 1, characterized in that: A plurality of guide rods (22) are fixed on the inner wall of the installation frame (12), and the sliding seat (13) is slidably mounted on the outer surfaces of the plurality of guide rods (22).
6. The FPC to FPCA pseudo-pressing test fixture according to claim 1, characterized in that: A second spring (23) and a telescopic rod (24) are fixedly mounted on the inner wall of the groove on the sliding seat (13); the second spring (23) and the telescopic rod (24) are both fixedly connected to the adjusting clamping plate (14).