A flexible circuit board detection jig

Abstract

The utility model discloses a kind of fixtures for flexible circuit board detection, specifically related to flexible circuit board detection technical field, including jig base, the jig base top is equipped with rotary disc, the rotary disc top is fixed with multiple clamps of annular array distribution, for placing flexible circuit board, the clamp includes bottom plate, the bottom plate top is equipped with sliding slot, the sliding slot inside is equipped with pressing plate, the jig base one side is equipped with bending mechanism, the bending mechanism includes folding plate, the folding plate rear end is connected with jig base by moving assembly, the folding plate is close to rotary disc one side and is equipped with two clamps of distribution up and down. The utility model is continuously conveyed flexible circuit board by multiple clamps on rotary disc to carry out continuous detection, and utilize folding plate and two clamps to fix flexible circuit board one end, complete to the automatic bending detection of flexible circuit board, and utilize moving assembly to automatically adjust the position of folding plate, to further improve the detection efficiency of flexible circuit board.

Description

Technical Field

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

[0002] Flexible circuit boards, also known as "flexible boards," are printed circuits made from flexible insulating substrates, typically polyimide or polyester film. Common materials for flexible circuit boards include polyimide and polyester. Polyimide is non-flammable, dimensionally stable, has high tensile strength, and can withstand soldering temperatures. Polyester film has similar physical properties to polyimide but is not heat-resistant, with a melting point of 250°C and a glass transition temperature (Tg) of 80°C. Furthermore, flexible circuit boards allow for integrated component assembly and wire connection; they significantly reduce the size and weight of electronic products, making them suitable for the development of high-density, miniaturized, and highly reliable electronic products; they have good heat dissipation, solderability, are easy to assemble, and have lower overall costs; the combination of rigid and flexible design compensates for the limitations of flexible substrates in component load-bearing capacity.

[0003] For example, in a test fixture for flexible circuit boards disclosed in the prior art (CN217655271U), both the sensing area and the electrostatic adsorption area are located on the conductive layer, with the electrostatic adsorption area arranged around the outer periphery of the sensing area. The electrostatic adsorption area can generate static electricity to adsorb the flexible circuit board. When the flexible circuit board is in close contact with the electrostatic adsorption area, the sensing area will also be in close contact with the area to be tested on the flexible circuit board. During the test, the flexible circuit board will not be scratched by the sensing area, thus improving the yield of the flexible circuit board.

[0004] However, the existing technology described above still has the following problems in use: traditional testing fixtures can usually only perform circuit testing. Since flexible circuit boards are bent according to their installation position during use, frequent bending can easily affect their service life and, in severe cases, even affect the normal operation of the circuit. Therefore, this utility model provides a flexible circuit board testing fixture with bending detection function. Utility Model Content

[0005] To overcome the aforementioned deficiencies in the prior art, this utility model provides a fixture for testing flexible circuit boards. Multiple clamps on a rotating disk continuously transport and test flexible circuit boards, and a folding plate and two clamps are used to fix one end of the flexible circuit board, completing the automatic bending test. Furthermore, a moving component automatically adjusts the position of the folding plate, thereby further improving the testing efficiency of flexible circuit boards and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixture for testing flexible circuit boards, comprising a fixture base, a rotating disk on the top of the fixture base, and a plurality of clamps arranged in a circular array on the top of the rotating disk for placing flexible circuit boards. Each clamp includes a base plate, a groove on the top of the base plate, and a pressure plate inside the groove. A bending mechanism is provided on one side of the fixture base, the bending mechanism including a folding plate. The rear end of the folding plate is connected to the fixture base via a moving component. Two clamping plates arranged vertically are provided on the side of the folding plate near the rotating disk, and the two clamping plates are connected via a driving component.

[0007] In a preferred embodiment, each pressure plate is fixedly provided with an electric push rod at its top. The bottom end of the piston rod of the electric push rod extends into the slide groove and is fixed to the top of the pressure plate. The pressure plate is raised and lowered by extending the electric push rod, thereby completing the automatic fixation of the flexible circuit board.

[0008] In a preferred embodiment, the moving component includes a linear module with a support plate fixedly disposed at its rear end. The support plate is detachably fixed to the fixture base. The linear module is supported by the support plate, thereby improving the stability of the folding plate and clamping plate.

[0009] In a preferred embodiment, a first motor is fixedly embedded at the front end of the slide of the linear module, and a connecting plate is fixedly sleeved on the outer wall of the output shaft of the first motor. The connecting plate is fixed to the folding plate, and the connecting plate is driven by the first motor to rotate the folding plate, thereby realizing the automatic bending of the flexible circuit board.

[0010] In a preferred embodiment, the folding plate has a moving groove on the side near the base plate. The driving assembly includes a lead screw, which is rotatably disposed in the moving groove. Two nut blocks are threadedly connected to the lead screw. The threads of the two nut blocks and the lead screw have opposite directions, so that the two nut blocks move in opposite directions. The two nut blocks are respectively fixed to two clamping plates. By using the lead screw and the two nut blocks in cooperation, the flexible circuit board can be automatically fixed for bending detection.

[0011] In a preferred embodiment, a second motor is fixedly mounted on the top of the folding plate. The bottom end of the output shaft of the second motor passes through the folding plate and is fixed to the top end of the lead screw. The lead screw is driven to rotate by the second motor, thereby automatically adjusting the distance between the two clamping plates and improving the detection efficiency of the flexible circuit board.

[0012] In a preferred embodiment, the top of the fixture base is provided with a mounting hole, and a third motor is detachably fixed inside the mounting hole. The top end of the output shaft of the third motor is detachably connected to the rotating disk. The third motor drives the rotating disk to rotate, thereby automatically switching the position of multiple flexible circuit boards and improving the detection efficiency of flexible circuit boards.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model continuously transports flexible circuit boards through multiple clamps on a rotating disk for continuous testing, and uses a folding plate and two clamps to fix one end of the flexible circuit board to complete the automatic bending test of the flexible circuit board. The position of the folding plate is automatically adjusted by a moving component, thereby further improving the testing efficiency of the flexible circuit board.

[0015] 2. The second motor drives the lead screw to rotate, and the two nut blocks on the lead screw drive the two clamping plates to move synchronously, thereby completing the automatic clamping of flexible circuit boards of different thicknesses, which can improve the detection efficiency of flexible circuit boards and improve practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a sectional view of the fixture base of this utility model;

[0018] Figure 3 This is a top view of the overall structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the bending mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the drive component structure of this utility model.

[0021] The attached figures are labeled as follows: 1. Fixture base; 2. Rotary disk; 3. Clamp; 4. Bending mechanism; 5. Moving slot; 6. Mounting hole; 7. Third motor;

[0022] 31. Base plate; 32. Slide groove; 33. Pressure plate; 34. Electric push rod;

[0023] 41. Folding plate; 42. Moving component; 421. Linear module; 422. Support plate; 423. First motor; 424. Connecting plate; 43. Clamping plate; 44. Drive component; 441. Lead screw; 442. Nut block; 443. Second motor. Detailed Implementation

[0024] 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.

[0025] Refer to the instruction manual appendix Figures 1-5 This utility model provides a fixture for testing flexible circuit boards, including a fixture base 1. The fixture base 1 has a rotating disk 2 on its top. The rotating disk 2 has a plurality of clamps 3 arranged in a circular array on its top for placing flexible circuit boards. Each clamp 3 includes a base plate 31. The base plate 31 has a groove 32 on its top. The groove 32 has a pressure plate 33 inside it. Each pressure plate 33 has an electric push rod 34 fixed on its top. The bottom end of the piston rod of the electric push rod 34 extends into the groove 32 and is fixed to the top of the pressure plate 33. The extension of the electric push rod 34 drives the pressure plate 33 to rise and fall, thereby completing the automatic fixation of the flexible circuit board.

[0026] The fixture base 1 is provided with a bending mechanism 4 on one side. The bending mechanism 4 includes a folding plate 41. The folding plate 41 is provided with two vertically distributed clamping plates 43 on the side near the rotating disk 2. The two clamping plates 43 are connected by a drive assembly 44.

[0027] The rear end of the folding plate 41 is connected to the fixture base 1 via a moving component 42. Specifically, the moving component 42 includes a linear module 421. A support plate 422 is fixedly provided at the rear end of the linear module 421. The support plate 422 is detachably fixed to the fixture base 1. A first motor 423 is fixedly embedded at the front end of the slide of the linear module 421. A connecting plate 424 is fixedly sleeved on the outer wall of the output shaft of the first motor 423. The connecting plate 424 is fixed to the folding plate 41. The first motor 423 drives the connecting plate 424 to rotate the folding plate 41, thereby realizing the automatic bending of the flexible circuit board.

[0028] The fixture base 1 has a mounting hole 6 on its top. A third motor 7 is detachably fixed inside the mounting hole 6. The top of the output shaft of the third motor 7 is detachably connected to the rotating disk 2. The third motor 7 drives the rotating disk 2 to rotate, thereby automatically switching the position of multiple flexible circuit boards and improving the detection efficiency of flexible circuit boards.

[0029] In practical use, the flexible circuit board is transported by multiple clamps 3 on the rotating disk 2 for continuous testing. When the flexible circuit board follows the clamps 3 to the side of the testing mechanism, the linear module 421 drives the connecting plate 424 and the folding plate 41 to move towards the flexible circuit board. Then, the driving component 44 drives the two clamping plates 43 to clamp the flexible circuit board. Then, the first motor 423 drives the connecting plate 424 to rotate the folding plate 41. The two clamping plates 43 on the folding plate 41 cause one end of the flexible circuit board to bend up and down, thereby automatically detecting the bending of the flexible circuit board. After the test is completed, the linear module 421 drives the clamping plates 43 and the folding plate 41 to separate from the flexible circuit board, so that subsequent testing can continue, thereby improving the testing efficiency of the flexible circuit board.

[0030] Refer to the instruction manual appendix Figure 5 The folding plate 41 has a moving groove 5 on the side near the bottom plate 31. The driving assembly 44 includes a lead screw 441, which is rotatably disposed in the moving groove 5. Two nut blocks 442 are threadedly connected to the lead screw 441. The threads of the two nut blocks 442 and the lead screw 441 are opposite, so that the two nut blocks 442 move in opposite directions. The two nut blocks 442 are respectively fixed to two clamping plates 43. A second motor 443 is fixedly mounted on the top of the folding plate 41. The bottom end of the output shaft of the second motor 443 passes through the folding plate 41 and is fixed to the top end of the lead screw 441.

[0031] The second motor 443 drives the lead screw 441 to rotate, and the two nut blocks 442 on the lead screw 441 drive the two clamping plates 43 to move synchronously, thereby completing the automatic clamping of the flexible circuit board and improving the detection efficiency of the flexible circuit board.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixture for testing flexible circuit boards, comprising a fixture base (1), characterized in that: The jig base (1) is provided with a rotating disk (2) on the top. The rotating disk (2) is fixed with a plurality of clamps (3) arranged in a ring array on the top for placing flexible circuit boards. The clamps (3) include a base plate (31). The top of the base plate (31) is provided with a groove (32). The groove (32) is provided with a pressure plate (33). The fixture base (1) is provided with a bending mechanism (4) on one side. The bending mechanism (4) includes a folding plate (41). The rear end of the folding plate (41) is connected to the fixture base (1) through a moving component (42). The folding plate (41) is provided with two vertically distributed clamping plates (43) on the side near the rotating disk (2). The two clamping plates (43) are connected through a driving component (44).

2. The fixture for testing flexible circuit boards according to claim 1, characterized in that: Each pressure plate (33) is fixedly provided with an electric push rod (34) at the top. The bottom end of the piston rod of the electric push rod (34) extends into the slide groove (32) and is fixed to the top of the pressure plate (33).

3. The fixture for testing flexible circuit boards according to claim 1, characterized in that: The moving component (42) includes a linear module (421), and a support plate (422) is fixedly provided at the rear end of the linear module (421). The support plate (422) is detachably fixed together with the fixture base (1).

4. The fixture for testing flexible circuit boards according to claim 3, characterized in that: The linear module (421) has a first motor (423) fixedly embedded at the front end of the slide table. The output shaft of the first motor (423) is fixedly sleeved with a connecting plate (424), and the connecting plate (424) is fixed to the folding plate (41).

5. The fixture for testing flexible circuit boards according to claim 1, characterized in that: The folding plate (41) has a moving groove (5) on the side near the bottom plate (31). The driving assembly (44) includes a lead screw (441), which is rotatably disposed in the moving groove (5). Two nut blocks (442) are threadedly connected to the lead screw (441). The threads of the two nut blocks (442) and the lead screw (441) are opposite, so that the two nut blocks (442) move in opposite directions. The two nut blocks (442) are fixed to the two clamping plates (43) respectively.

6. The fixture for testing flexible circuit boards according to claim 5, characterized in that: The top of the folding plate (41) is fixedly equipped with a second motor (443), and the bottom end of the output shaft of the second motor (443) passes through the folding plate (41) and is fixed to the top end of the lead screw (441).

7. The fixture for testing flexible circuit boards according to claim 1, characterized in that: The fixture base (1) has a mounting hole (6) on its top. A third motor (7) is detachably fixed inside the mounting hole (6). The top of the output shaft of the third motor (7) is detachably connected to the rotating disk (2).

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