Adjustable testing device for flexible circuit board

Abstract

The invention discloses an adjustable testing device for a flexible circuit board, and relates to the field of circuit board testing devices.The adjustable testing device comprises a base, a locking piece is arranged at the end of the base, meanwhile, an adjusting assembly is fixedly installed at the position, located on one side of the locking piece, of the end of the base, and the state of the circuit board is adjusted through the adjusting assembly; according to the adjustable testing device for the flexible circuit board, the pressing assembly accurately extrudes the middle position of the circuit board, the stress condition in practical application can be simulated, the performance of the circuit board under different stresses is ensured, uneven or inaccurate pressure distribution possibly caused when traditional equipment processes the flexible circuit board is avoided, and the testing efficiency is improved. And meanwhile, the state and the quality of the flexible circuit board can be effectively evaluated.

Description

Technical Field

[0001] The invention relates to circuit board testing device technology, in particular to an adjustable testing device for a flexible circuit board. Background Art

[0002] Flexible printed circuits (FPCs) are made from polyimide or polyester film, offering excellent properties such as light weight, thinness, and the ability to bend and fold freely. After FPC fabrication, they undergo tensile strength and bending angle tests to identify the performance levels of different FPC types.

[0003] A Chinese invention patent with publication number CN114441303B discloses an adjustable testing device for a flexible circuit board. When the flexible circuit board needs to be tested for an angle, the toothed disc is moved from a side hole, and then the toothed disc rotates, causing the fixed disc to rotate, and the operator can observe the angle of rotation through a transparent visual ring. The radius of the toothed disc is greater than the radius of the fixed disc, so that when the rotation angle is the same, the arc length of the toothed disc is greater than the arc length of the fixed disc, thereby facilitating the operator to more accurately test the angle of the flexible circuit board; at the same time, after the adjustment is completed, the E-shaped plate is limited between the teeth of the toothed disc under the action of the center rod of the spring, thereby realizing stable and quick limiting of the angle adjustment mechanism.

[0004] When using existing equipment, due to the flexibility of the flexible circuit board itself, the control of the flexible circuit board is poor, and thus it cannot provide effective support when simulating different scenarios. At the same time, the pressure applied during the detection process cannot be accurately controlled, resulting in local and continuous detection during the flexible circuit board detection, resulting in a single flexible circuit board detection result and an inability to accurately obtain the required data. Therefore, an adjustable test device for flexible circuit boards has been developed. Summary of the Invention

[0005] The object of the present invention is to provide an adjustable testing device for a flexible circuit board to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable testing device for a flexible circuit board, comprising a base, an end of the base being provided with a locking member, and an adjustment assembly being fixedly mounted at the end of the base and located on one side of the locking member, for adjusting the state of the circuit board by means of the adjustment assembly;

[0007] A pressing component, which is assembled at the end of the base and cooperates with the adjusting component to perform multi-directional detection of the circuit board;

[0008] The adjustment assembly includes a fixing plate fixedly connected to the end of the base, a groove is formed at the end of the fixing plate, a slider is slidably mounted on the inner wall of the groove, a limiting block is fixedly mounted on the end of the slider, and an adjustment block is slidably mounted on the end of the limiting block;

[0009] A driving block is fixedly mounted on the end of the adjusting block, and a positioning block is fixedly mounted on the end of the driving block;

[0010] A support block is fixedly mounted on the end of the fixed plate, and a support plate is slidably mounted on the end of the support block, and a movable groove is formed on the end of the support plate;

[0011] A moving block is slidably installed on the inner wall of the moving groove, and a limiting groove is provided at the end of the moving block. The inner wall of the limiting groove is slidably connected to the outer surface of the positioning block. At the same time, a clamping piece is rotatably installed on the end of the moving block, and the end of the circuit board is limited by the clamping piece.

[0012] As a further optimization solution of the present invention, a positioning plate is fixedly installed on one side of the fixing plate, a driving member is fixedly installed on the end of the positioning plate, and a transmission gear is fixedly installed on the end of the driving member.

[0013] As a further optimization solution of the present invention, a guide groove is provided in the middle position of the adjustment block, the inner wall of the guide groove is slidably connected to the outer surface of the end of the transmission gear, and the outer surface of the transmission gear is meshed with the inner wall of the adjustment block.

[0014] As a further optimization solution of the present invention, the pressing assembly includes a connecting block fixedly connected to the base, a circular ring is fixedly installed on the end of the connecting block, and a power part is fixedly installed on the outer surface of the circular ring.

[0015] As a further optimization solution of the present invention, a through hole is provided on the outer surface of the ring and on a side away from the power member, and a rotating shaft is rotatably mounted on the inner wall of the through hole.

[0016] As a further optimization solution of the present invention, a power rod is rotatably installed on the outer surface of the rotating shaft, and one end of the power rod extends to the outside of the ring, and the other end extends to the inner cavity of the ring. At the same time, a power groove is opened on one side of the power rod.

[0017] As a further optimization solution of the present invention, a power block is fixedly installed at the output end of the power member, and the outer surface of the end of the power block is slidably connected to the inner wall of the power groove.

[0018] As a further optimization solution of the present invention, an arc block is fixedly installed on the end of the connecting block, an arc groove is opened on the end of the arc block, and a movable block is slidably installed on the inner wall of the arc groove.

[0019] As a further optimized solution of the present invention, one side of the movable block is fixedly connected to the end of the power rod, and a telescopic member is fixedly installed on the inner wall of the movable block.

[0020] As a further optimization solution of the present invention, a pressing block is fixedly installed at the output end of the telescopic member, and the pressing block is used to perform pressure detection on the circuit board.

[0021] Compared with the prior art, the adjustable testing device for flexible circuit boards provided by the present invention has the following beneficial effects: the adjustment component ensures adaptive adjustment under different working environments and test conditions, thereby increasing the flexibility and accuracy of detection; by combining the adjustment component and the extrusion component, multiple tests can be performed simultaneously, such as anti-extrusion performance, stress distribution, deformation detection, etc., thereby improving the accuracy of flexible circuit board detection.

[0022] By precisely squeezing the middle of the circuit board with the pressing component, the stress conditions in actual applications can be simulated, ensuring the performance of the circuit board under different stresses. This avoids the uneven or inaccurate pressure distribution that may be caused by traditional equipment when handling flexible circuit boards, and can effectively evaluate the condition and quality of the flexible circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the structure of the adjustment component provided in an embodiment of the present invention;

[0026] Figure 3 A first exploded view of the regulating assembly structure provided by an embodiment of the present invention;

[0027] Figure 4 A second exploded view of the regulating assembly structure provided by an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the structure of a pressing component provided in an embodiment of the present invention;

[0029] Figure 6 A cross-sectional view of the internal structure of a pressing assembly provided in an embodiment of the present invention;

[0030] Figure 7A first exploded view of the pressing assembly structure provided by an embodiment of the present invention;

[0031] Figure 8 This is a second exploded view of the pressing assembly structure provided by an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Base; 2. Adjustment assembly; 3. Pressing assembly; 11. Locking member; 21. Fixing plate; 211. Groove; 22. Positioning plate; 221. Driving member; 23. Slider; 24. Limiting block; 25. Adjustment block; 251. Guide groove; 252. Transmission gear; 26. Driving block; 261. Positioning block; 27. Support block; 271. Support plate; 272. Moving groove; 28. Moving block; 281. Limiting groove; 29. ​​Clamping member; 31. Connecting block; 32. Ring; 321. Power member; 322. Through hole; 323. Rotating shaft; 33. Power block; 34. Power rod; 341. Power groove; 35. Movable block; 351. Telescopic member; 36. Arc block; 361. Arc groove; 37. Pressing block. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example: See Figures 1-8An adjustable testing device for a flexible circuit board includes a base 1, a locking piece 11 is provided at the end of the base 1, and an adjustment component 2 is fixedly installed at the end of the base 1 and on one side of the locking piece 11, and the state of the circuit board is adjusted by the adjustment component 2.

[0037] In this solution, the locking member 11 is a fixture or other fixture that secures one end of the circuit board and simultaneously works with the adjustment assembly 2 to lock the other end. By moving the adjustment assembly 2, the circuit board can be simulated in different states, resulting in more accurate data during testing. Furthermore, the position of the flexible circuit board can be precisely controlled to ensure its stability during transfer.

[0038] Furthermore, the adjustment component 2 includes a fixed plate 21 fixedly connected to the end of the base 1, a groove 211 is provided at the end of the fixed plate 21, a slider 23 is slidably installed on the inner wall of the groove 211, a limiting block 24 is fixedly installed at the end of the slider 23, and an adjustment block 25 is slidably installed at the end of the limiting block 24.

[0039] In this embodiment, a limiting groove is provided at the end of the limiting block 24. When the adjusting block 25 moves laterally, the entire adjusting block 25 moves along the inner wall of the limiting groove on the limiting block 24, thereby ensuring the stability of the adjusting block 25 during movement.

[0040] At the same time, when the adjusting block 25 is subjected to force and moves longitudinally, the slider 23 fixed on the limiting block 24 is driven to move. Since the outer surface of the slider 23 is slidably connected to the inner wall of the groove 211, when the adjusting block 25 is subjected to force, it can cooperate with the slider 23 to move on the inner wall of the groove 211 until it reaches the optimal position and stops.

[0041] When the transmission gear 252 rotates, the entire adjustment block 25 is driven to move. Since the inner wall of the adjustment block 25 is surrounded by convex teeth, when the transmission gear 252 rotates from one side to the corresponding end, the adjustment block 25 slowly changes from lateral movement to longitudinal movement, and changes from longitudinal movement to lateral movement during continuous operation.

[0042] When the adjusting block 25 moves longitudinally, the slider 23 drives the limiting block 24 to move along the inner wall of the groove 211. When the adjusting block 25 moves laterally, the inner wall of the limiting block 24 limits the adjusting block 25 so that it can move laterally stably.

[0043] Furthermore, a driving block 26 is fixedly mounted on the end of the adjusting block 25 , and a positioning block 261 is fixedly mounted on the end of the driving block 26 .

[0044] Specifically, when the adjustment block 25 moves, it synchronously drives the driving block 26 fixedly installed at its end to move, wherein the positioning block 261 is a device with a telescopic function such as an electric telescopic rod, and the output end of the electric telescopic rod is fixedly installed with a rubber block or other anti-slip component. When the positioning block 261 is started, the rubber block is driven to move synchronously toward the end of the moving block 28 until it is tightly fitted at its end, so that the positioning block 261 drives the moving block 28 to move synchronously.

[0045] Furthermore, a support block 27 is fixedly mounted on the end of the fixed plate 21 , and a support plate 271 is slidably mounted on the end of the support block 27 . A movable groove 272 is formed at the end of the support plate 271 .

[0046] Specifically, a support groove is provided on one side of the support block 27, and the inner wall of the support groove is slidably connected to the outer surface of the end of the support plate 271. At the same time, when the moving block 28 moves, it synchronously drives the support plate 271 to move longitudinally along the inner wall of the support groove.

[0047] When the positioning block 261 is separated from the moving block 28 , the moving block 28 is driven to move along the inner wall of the moving groove 272 , and the moving block 28 is protected.

[0048] Furthermore, a moving block 28 is slidably installed on the inner wall of the moving groove 272, and a limiting groove 281 is opened at the end of the moving block 28. The inner wall of the limiting groove 281 is slidably connected to the outer surface of the positioning block 261. At the same time, a clamping member 29 is rotatably installed on the end of the moving block 28, and the end of the circuit board is limited by the clamping member 29.

[0049] Specifically, when the moving block 28 is moved by force, the clamping member 29 arranged at its end is driven to move synchronously, wherein the end of the clamping member 29 is provided with a device with power output such as a motor, and the motor drives the clamping member 29 to rotate, so that the clamping member 29 moves to the appropriate position.

[0050] The clamping member 29 is a component such as a clamp used to fix the end of the circuit board, and is used to accurately lock the end of the circuit board to facilitate subsequent various tests.

[0051] Furthermore, a positioning plate 22 is fixedly mounted on one side of the fixing plate 21 , a driving member 221 is fixedly mounted on an end portion of the positioning plate 22 , and a transmission gear 252 is fixedly mounted on an end portion of the driving member 221 .

[0052] Specifically, the driving member 221 is a device with power output, such as a motor, and is connected to an external control device. When the driving member 221 is started, it synchronously drives the transmission gear 252 fixedly installed at its output end to rotate.

[0053] Furthermore, a guide groove 251 is provided in the middle of the adjustment block 25 , and the inner wall of the guide groove 251 is slidably connected to the outer surface of the end of the transmission gear 252 , while the outer surface of the transmission gear 252 is meshed with the inner wall of the adjustment block 25 .

[0054] Specifically, since the outer surface of the transmission gear 252 is engaged with the inner wall of the adjustment block 25, when the transmission gear 252 rotates, the adjustment block 25 is driven to move. At the same time, the outer surface of the end of the transmission gear 252 slides along the inner wall of the guide groove 251, thereby ensuring the stability of the operation of the transmission gear 252.

[0055] When the adjustment block 25 is moved by force, it moves along the track of the guide groove 251, thereby achieving horizontal or vertical movement, and cooperating with the clamping parts 29 to adjust the circuit board at will, simulating different scenarios and improving the accuracy of detection.

[0056] Furthermore, the pressing component 3 is assembled on the end of the base 1 and cooperates with the adjusting component 2 to perform multi-directional detection of the circuit board; the pressing component 3 includes a connecting block 31 fixedly connected to the base 1, and a circular ring 32 is fixedly installed on the end of the connecting block 31, and a power part 321 is fixedly installed on the outer surface of the circular ring 32.

[0057] In this embodiment, the power member 321 is a device with power output such as a motor, and is connected to an external control device. When the power member 321 is started, it synchronously drives the power block 33 fixedly installed at its output end to rotate.

[0058] Furthermore, a through hole 322 is formed on the outer surface of the ring 32, away from the power member 321. A rotating shaft 323 is rotatably mounted on the inner wall of the through hole 322. A power rod 34 is rotatably mounted on the outer surface of the rotating shaft 323. One end of the power rod 34 extends outside the ring 32, and the other end extends into the inner cavity of the ring 32. A power groove 341 is formed on one side of the power rod 34.

[0059] Specifically, when the power rod 34 is subjected to force, it rotates as a whole along the outer surface of the rotating shaft 323, wherein the outer surface of the power rod 34 is slidingly connected to the inner wall of the through hole 322, which is used to protect the power rod 34 during operation and ensure the stability of the power rod 34.

[0060] Furthermore, a power block 33 is fixedly mounted on the output end of the power member 321 , and an outer surface of an end portion of the power block 33 is slidably connected to an inner wall of the power groove 341 .

[0061] Specifically, when the power block 33 rotates, the power rod 34 slidably mounted on its outer surface is driven to move. Since the outer surface of the end of the power block 33 is slidably connected to the inner wall of the power groove 341, when the power block 33 rotates, the power rod 34 is driven to move back and forth around the rotating shaft 323 until it moves to a suitable position and stops.

[0062] Furthermore, an arc block 36 is fixedly mounted on the end of the connecting block 31. An arc slot 361 is defined at the end of the arc block 36, and a movable block 35 is slidably mounted on the inner wall of the arc slot 361. One side of the movable block 35 is fixedly connected to the end of the power rod 34, and a telescopic member 351 is fixedly mounted on the inner wall of the movable block 35. A pressing block 37 is fixedly mounted on the output end of the telescopic member 351, which performs pressure detection on the circuit board.

[0063] Specifically, when the movable block 35 moves following the power rod 34 , the movable block 35 is limited by the arc block 36 , so that the movable block 35 remains stable as a whole during the movement.

[0064] The telescopic part 351 is a device with telescopic function such as an electric telescopic rod, and is connected to an external control device. At the same time, when the telescopic part 351 moves, it synchronously drives the pressing block 37 fixedly installed at its output end to move. The end of the pressing block 37 is connected to the end of the telescopic part 351 through a clamp or other fixing component, which facilitates the subsequent replacement of different types of pressing blocks 37.

[0065] The control device can be a single-chip microcomputer (MCU). In this embodiment, the MCU is a typical embedded microcontroller (MCU), consisting of an arithmetic unit (ALU), a controller, memory, and input / output devices, equivalent to a miniature computer. Compared to general-purpose microprocessors used in personal computers, it emphasizes self-sufficiency (no external hardware required) and cost savings. Its greatest advantages are its small size, allowing it to be placed inside the instrument, low memory capacity, simple input / output interfaces, and low functional consumption.

[0066] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An adjustable testing device for a flexible circuit board, characterized in that: The invention comprises a base (1), wherein a locking member (11) is provided at an end of the base (1), and an adjusting component (2) is fixedly mounted at the end of the base (1) and on one side of the locking member (11), and the state of the circuit board is adjusted by the adjusting component (2); A pressing component (3) is assembled on the end of the base (1) and cooperates with the adjusting component (2) to perform multi-directional detection on the circuit board; The adjustment assembly (2) comprises a fixing plate (21) fixedly connected to the end of the base (1); a groove (211) is provided at the end of the fixing plate (21); a slider (23) is slidably mounted on the inner wall of the groove (211); a limiting block (24) is fixedly mounted on the end of the slider (23); and an adjustment block (25) is slidably mounted on the end of the limiting block (24); A driving block (26) is fixedly mounted on the end of the adjusting block (25), and a positioning block (261) is fixedly mounted on the end of the driving block (26); A support block (27) is fixedly mounted on the end of the fixed plate (21), and a support plate (271) is slidably mounted on the end of the support block (27), and a movable groove (272) is provided at the end of the support plate (271); A moving block (28) is slidably mounted on the inner wall of the moving groove (272), a limiting groove (281) is provided at the end of the moving block (28), the inner wall of the limiting groove (281) is slidably connected to the outer surface of the positioning block (261), and a clamping member (29) is rotatably mounted on the end of the moving block (28), and the end of the circuit board is limited by the clamping member (29).

2. The adjustable testing device for a flexible circuit board according to claim 1, characterized in that: A positioning plate (22) is fixedly mounted on one side of the fixing plate (21), a driving member (221) is fixedly mounted on the end of the positioning plate (22), and a transmission gear (252) is fixedly mounted on the end of the driving member (221).

3. The adjustable testing device for a flexible circuit board according to claim 2, characterized in that: A guide groove (251) is provided in the middle of the adjusting block (25), and the inner wall of the guide groove (251) is slidably connected to the outer surface of the end of the transmission gear (252), while the outer surface of the transmission gear (252) is meshed with the inner wall of the adjusting block (25).

4. The adjustable testing device for a flexible circuit board according to claim 1, characterized in that: The pressing assembly (3) comprises a connecting block (31) fixedly connected to the base (1); a circular ring (32) is fixedly mounted on the end of the connecting block (31); and a power member (321) is fixedly mounted on the outer surface of the circular ring (32).

5. The adjustable testing device for a flexible circuit board according to claim 4, characterized in that: A through hole (322) is provided on the outer surface of the ring (32) and on a side away from the power member (321), and a rotating shaft (323) is rotatably mounted on the inner wall of the through hole (322).

6. The adjustable testing device for a flexible printed circuit board according to claim 5, characterized in that: A power rod (34) is rotatably mounted on the outer surface of the rotating shaft (323), and one end of the power rod (34) extends to the outside of the ring (32), and the other end extends to the inner cavity of the ring (32). At the same time, a power groove (341) is opened on one side of the power rod (34).

7. The adjustable testing device for a flexible printed circuit board according to claim 6, characterized in that: A power block (33) is fixedly mounted on the output end of the power member (321), and the outer surface of the end of the power block (33) is slidably connected to the inner wall of the power groove (341).

8. The adjustable testing device for a flexible printed circuit board according to claim 7, characterized in that: An arc block (36) is fixedly mounted on the end of the connecting block (31), an arc groove (361) is formed on the end of the arc block (36), and a movable block (35) is slidably mounted on the inner wall of the arc groove (361).

9. The adjustable testing device for a flexible printed circuit board according to claim 8, characterized in that: One side of the movable block (35) is fixedly connected to the end of the power rod (34), and a telescopic member (351) is fixedly installed on the inner wall of the movable block (35).

10. The adjustable testing device for a flexible printed circuit board according to claim 9, characterized in that: A pressing block (37) is fixedly mounted on the output end of the telescopic member (351), and the pressing block (37) is used to perform pressing detection on the circuit board.

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