A test fixture for FPC flexible circuit board

Abstract

The utility model relates to a kind of test fixture of FPC flexible circuit board, including center bottom plate, in the left and right sides of the center bottom plate, both are articulated with bending plate that flips, the bending plate can be opened outwards and center bottom plate is horizontal form, or inwardly flips and center bottom plate is bent form, first pressing device is set on both the bending plate, there is second pressing device in the center bottom plate end face left and right symmetry, the first pressing device and second pressing device are used to press FPC flexible circuit board, driving device is set in the front side of the center bottom plate, the driving device can drive two the bending plate relative to the center bottom plate sequentially flips and is integrated;When bending test work, only by a driving device, left and right two bending plates relative to center bottom plate can be sequentially folded by driving, and then two FPC flexible circuit boards are tested simultaneously, improve test efficiency and test accuracy.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board manufacturing technology, and in particular to a testing fixture for FPC flexible circuit boards. Background Technology

[0002] As electronic devices become lighter and more flexible, FPCs (flexible printed circuit boards) are widely used in wearable devices, foldable screen phones and other fields due to their excellent bending performance and space adaptability.

[0003] Traditional FPC toughness testing primarily relies on manual bending by workers. However, due to inherent inconsistencies in the bending position and varying bending techniques among different individuals, test results from different workers can differ significantly, impacting the accuracy of FPC toughness testing. While FPC toughness testing fixtures have emerged on the market, existing fixtures can only clamp and test a single flexible circuit board, resulting in slow testing efficiency. Utility Model Content

[0004] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes a test fixture for FPC flexible circuit boards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A test fixture for a flexible printed circuit board (FPC) includes a central base plate. Bent plates are hinged to both sides of the central base plate, and each bent plate can be flipped outwards to be horizontal with the central base plate, or flipped inwards to be bent with the central base plate. A first clamping device is provided on each of the bent plates, and a second clamping device is symmetrically located on the left and right ends of the central base plate. The first and second clamping devices are used to clamp the FPC. A driving device is provided on the front side of the central base plate, which drives the two bent plates to flip sequentially relative to the central base plate.

[0006] In some embodiments, rotating sleeves spaced apart on both the left and right sides of the central base plate are provided, and rotating shafts spaced apart on the inner side of the bent plate are provided, the rotating shafts being rotatably disposed within the rotating sleeves.

[0007] In some embodiments, the driving device includes a sliding rack that slides left and right on the central base plate, a gear that meshes with the sliding rack is provided on the rotating shaft, and a reciprocating mechanism that can drive the sliding rack to reciprocate in the left and right direction is also provided on the central base plate.

[0008] In some embodiments, the reciprocating movement mechanism includes a rectangular frame disposed on the sliding rack, an upper rack disposed on the upper side wall of the rectangular frame, a lower rack disposed on the lower side wall, a motor mounting plate disposed on the central base plate, a motor disposed on the motor mounting plate, and an incomplete gear disposed on the output shaft of the motor. The incomplete gear is disposed within the rectangular frame and meshes with the upper rack and the lower rack in sequence.

[0009] In some embodiments, the first clamping device includes a first notch disposed on the bending plate, a first shaft extending in the front-rear direction is rotatably mounted in the first notch, a first pressure plate is disposed on the first shaft, one end of the first pressure plate abuts against the end face of the bending plate, and a first spring is connected between the other end and the first notch.

[0010] In some embodiments, the second pressing device includes a second notch provided on the central base plate, a second shaft extending in the front-rear direction is rotatably mounted in the second notch, a second pressure plate is provided on the second shaft, one end of the second pressure plate abuts against the end face of the central base plate, and a second spring is connected between the other end and the second notch.

[0011] In some embodiments, support feet are provided on both the front and rear sides of the central base plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: By hinged bending plates on both sides of the central base plate, and a first clamping device on each bending plate, and a second clamping device symmetrically located on the left and right ends of the central base plate, FPC flexible circuit boards can be installed on both bending plates. The FPC flexible circuit boards are pressed together by the first and second clamping devices. During bending testing, only one driving device is needed to drive the bending plates on both sides to flip and close relative to the central base plate in sequence, thereby testing two FPC flexible circuit boards simultaneously, improving testing efficiency and accuracy. Attached Figure Description

[0013] Figure 1 This is a top view of the structure of this utility model; Figure 2 This utility model Figure 1 Schematic diagram of section AA; Figure 3 This utility model Figure 2 Enlarged view of point A; Figure 4 This is a partial structural schematic diagram of the present invention; Figure 5 This utility model Figure 4 Enlarged diagram of point B. Detailed Implementation

[0014] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0015] like Figures 1-5 The test fixture for an FPC flexible circuit board shown includes a central base plate 1. Bend plates 2 are hinged to both sides of the central base plate 1. The bend plates 2 can be flipped outwards to be horizontal with the central base plate 1, or flipped inwards to be bent with the central base plate 1. A first clamping device is provided on each of the two bend plates 2. Second clamping devices are symmetrically located on the left and right ends of the central base plate 1. The first and second clamping devices are used to clamp the FPC flexible circuit board. A driving device is provided on the front side of the central base plate 1, which drives the two bend plates 2 to flip sequentially relative to the central base plate 1.

[0016] Based on the above structure, FPC flexible circuit boards can be installed on both bending plates 2, and the FPC flexible circuit boards are pressed together by the first pressing device and the second pressing device. During the bending test, only one driving device is needed to drive the bending plates 2 on the left and right sides to flip and close relative to the central base plate 1 in sequence, thereby testing the two FPC flexible circuit boards at the same time, improving the testing efficiency and accuracy.

[0017] Furthermore, rotating sleeves 21 with front-to-back spacing are provided on both the left and right sides of the central base plate 1, and rotating shafts 22 with front-to-back spacing are provided on the inner side of the bending plate 2. The rotating shafts 22 are rotatably disposed inside the rotating sleeves 21. The central base plate 1 and the rotating sleeves 21 remain stationary. Then, the bending plate 2 can be driven to flip by rotating the rotating shafts 22 inside the rotating sleeves 21.

[0018] In this utility model, the driving device includes a sliding rack 31 that slides left and right on the central base plate 1, a gear 32 that meshes with the sliding rack 31 is provided on the rotating shaft 22, and a reciprocating movement mechanism that can drive the sliding rack 31 to reciprocate in the left and right direction is also provided on the central base plate 1.

[0019] Furthermore, the reciprocating movement mechanism includes a rectangular frame 33 disposed on the sliding rack 31, an upper rack 34 disposed on the upper side wall of the rectangular frame 33, a lower rack 35 disposed on the lower side wall, a motor mounting plate 36 disposed on the central base plate 1, a motor 37 disposed on the motor mounting plate 36, and an incomplete gear 38 disposed on the output shaft of the motor 37. The incomplete gear 38 is disposed within the rectangular frame 33 and meshes with the upper rack 34 and the lower rack 35 in sequence.

[0020] It should be noted that in the initial state, one side of the bending plate 2 is in a horizontally open state, while the other side of the bending plate 2 is in an inwardly folded state. Then, the motor 37 drives the incomplete gear 38 to rotate. The incomplete gear 38 meshes with the upper rack 34 and the lower rack 35 in sequence, thereby driving the sliding rack 31 to move back and forth in the left and right direction. While the sliding rack 31 is moving, it meshes with the gear 32. The gear 32 rotates with the rotating shaft 22, thereby driving the bending plate 2 to flip. Of course, the flipping angle of the bending plate 2 is 30-180°.

[0021] See Figure 2 , Figure 3 As shown, the first pressing device includes a first notch 51 disposed on the bending plate 2. A first shaft 52 extending in the front-back direction is rotatably mounted in the first notch 51. A first pressure plate 53 is disposed on the first shaft 52. One end of the first pressure plate 53 abuts against the end face of the bending plate 2, and the other end is connected to the first notch 51 by a first spring 54. Under the action of the first spring 54, one end of the first pressure plate 53 tightly presses the FPC flexible circuit board onto the bending plate 2.

[0022] The second pressing device includes a second notch 61 provided on the central base plate 1. A second shaft 62 extending in the front-rear direction is rotatably installed in the second notch 61. A second pressure plate 63 is provided on the second shaft 62. One end of the second pressure plate 63 abuts against the end face of the central base plate 1, and a second spring 64 is connected between the other end and the second notch 61. The structure of the second pressing device is the same as that of the first pressing device, and will not be described again here.

[0023] In this invention, support feet 71 are provided on both the front and rear sides of the central base plate 1. The support feet 71 can be locked to the workbench by bolts to improve the stability during testing.

[0024] Based on the accompanying drawings and the foregoing display and description of 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 illustrative of the 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A test fixture for FPC flexible printed circuit board, characterized in that: The device includes a central base plate (1), and two bending plates (2) are hinged to the left and right sides of the central base plate (1). The bending plates (2) can be flipped outward to be horizontal with the central base plate (1) or flipped inward to be bent with the central base plate (1). A first pressing device is provided on each of the two bending plates (2), and a second pressing device is symmetrically provided on the left and right sides of the end face of the central base plate (1). The first pressing device and the second pressing device are used to press the FPC flexible circuit board. A driving device is provided on the front side of the central base plate (1), and the driving device can drive the two bending plates (2) to flip and close sequentially relative to the central base plate (1).

2. The test fixture for FPC flexible circuit board of claim 1, wherein: Rotating sleeves (21) spaced apart are provided on both the left and right sides of the central base plate (1), and rotating shafts (22) spaced apart on the inner side of the bent plate (2) are provided on both the front and back sides. The rotating shafts (22) are rotatably located inside the rotating sleeves (21).

3. The test fixture for FPC flexible circuit board of claim 2, wherein: The driving device includes a sliding rack (31) that slides left and right on the central base plate (1), a gear (32) that meshes with the sliding rack (31) is provided on the rotating shaft (22), and a reciprocating movement mechanism that can drive the sliding rack (31) to move back and forth in the left and right direction is also provided on the central base plate (1).

4. The test fixture for FPC flexible circuit board of claim 3, wherein: The reciprocating movement mechanism includes a rectangular frame (33) mounted on the sliding rack (31), an upper rack (34) mounted on the upper side wall of the rectangular frame (33), a lower rack (35) mounted on the lower side wall, a motor mounting plate (36) mounted on the central base plate (1), a motor (37) mounted on the motor mounting plate (36), and an incomplete gear (38) mounted on the output shaft of the motor (37). The incomplete gear (38) is located inside the rectangular frame (33) and meshes with the upper rack (34) and the lower rack (35) in sequence.

5. The test fixture for FPC flexible circuit board of claim 1, wherein: The first pressing device includes a first notch (51) provided on the bending plate (2), a first shaft (52) extending in the front-back direction is rotatably installed in the first notch (51), a first pressure plate (53) is provided on the first shaft (52), one end of the first pressure plate (53) abuts against the end face of the bending plate (2), and the other end is connected to the first notch (51) by a first spring (54).

6. The test fixture for a FPC flexible circuit board of claim 1, wherein: The second pressing device includes a second notch (61) provided on the central base plate (1), a second shaft (62) extending in the front-rear direction is rotatably installed in the second notch (61), a second pressure plate (63) is provided on the second shaft (62), one end of the second pressure plate (63) abuts against the end face of the central base plate (1), and the other end is connected to the second notch (61) by a second spring (64).

7. The test fixture for a FPC flexible circuit board of claim 1, wherein: Support feet (71) are provided on both the front and rear sides of the central base plate (1).

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