Flexible circuit board fixing device

Abstract

The utility model discloses a kind of flexible circuit board fixing devices, it is related to circuit board processing technical field. Including support frame and workstation, fixed assembly connected by support frame is composed of fixed part and shock-absorbing part. Fixed part is through drive motor, bevel gear transmission, two-way threaded rod and the like structure, realize the lifting of lower pressing plate, to circuit board is pressed down and fixed;Shock-absorbing part is provided with first, second shock-absorbing spring, shock-absorbing connecting rod and the like component, cooperate shock-absorbing rubber pad and pressure sensor, absorb the impact force of pressing down and intelligent control pressure. When working, drive motor drives transmission structure to make lower pressing plate press down, and pressure sensor monitors pressure and feedback control motor operation, after processing is completed, motor reverses and releases circuit board. The device effectively solves the problem that traditional fixing device is easy to damage circuit board, low fixing efficiency and the like, has good protection effect, fixed stable, intelligent adjustment, compact structure and the like advantages, satisfy flexible circuit board diversification processing demand.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, specifically a flexible circuit board fixing device. Background Technology

[0002] In the processing of flexible printed circuit boards (FPCBs), operations such as welding, cutting, and drilling require stable fixation of the FPCBs to ensure processing accuracy and quality. However, traditional FPCB fixing devices mostly employ rigid fixing methods, which can easily apply excessive pressure to the flexible FPCBs during the fixing process, leading to deformation and damage. Furthermore, existing fixing devices struggle to achieve rapid and stable fixing of FPCBs of different sizes, resulting in low fixing efficiency and failing to meet the diverse and high-precision processing requirements of modern flexible FPCBs. Therefore, those skilled in the art have proposed a flexible FPCB fixing device to address the problems mentioned above. Utility Model Content

[0003] The purpose of this invention is to provide a flexible circuit board fixing device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A flexible circuit board fixing device includes a support frame and a worktable. The worktable is fixedly connected to the bottom surface inside the support frame. The support frame is connected to a fixing component, which includes a fixing part and a shock-absorbing part. The fixing part is used to press down and fix the flexible circuit board, and the shock-absorbing part is used to absorb excess impact force during the pressing process to protect the workpiece.

[0006] As a further embodiment of this utility model: the fixing part includes a drive motor, a motor plate, a drive crossbar, a first drive bevel gear, a second drive bevel gear, an inverted U-shaped plate, a transmission crossbar, a transmission wheel, and a transmission belt. The drive motor is fixedly connected to the side wall of the support frame through the motor plate. The output shaft of the drive motor is fixedly connected to the drive crossbar. The end of the drive crossbar passes through the support frame and is fixedly connected to the first drive bevel gear. Two sets of symmetrically arranged inverted U-shaped plates are fixedly connected to the top surface inside the support frame. The front side of each inverted U-shaped plate is rotatably connected to a transmission crossbar. A transmission wheel is fixedly connected to each transmission crossbar. The front end of one of the transmission crossbars is fixedly connected to the second drive bevel gear. The first drive bevel gear and the second drive bevel gear mesh with each other.

[0007] As a further embodiment of this utility model: the fixing assembly also includes a bidirectional threaded rod, a drive screw block, a first mounting base, a fixed connecting rod, a second mounting base, and a lower pressure plate. One end of the transmission crossbar is fixedly connected to the bidirectional threaded rod, and the other end of the bidirectional threaded rod passes through the side wall of the inverted U-shaped plate and is rotatably connected to the inner wall of the other side of the inverted U-shaped plate. Both sides of the bidirectional threaded rod are threadedly connected to drive screw blocks, and the bottom surface of each drive screw block is fixedly connected to the first mounting base. The first mounting base is rotatably connected to the fixed connecting rod, and the other end of the fixed connecting rod is rotatably connected to the second mounting base. The bottom surface of the second mounting base is fixedly connected to the lower pressure plate.

[0008] As a further embodiment of this utility model: the shock-absorbing part includes a mounting vertical plate, a mounting slide rod, a mounting slider, a first shock-absorbing spring, a third mounting seat, a shock-absorbing connecting rod, a fourth mounting seat, and a shock-absorbing plate. The mounting vertical plates are fixedly connected to both the left and right sides of the bottom surface of the lower pressure plate. A horizontally arranged mounting slide rod is fixedly connected between the mounting vertical plates. Mounting sliders are slidably connected to both the left and right sides of the mounting slide rod. A first shock-absorbing spring is fixedly connected between the mounting sliders. A third mounting seat is fixedly connected to the bottom surface of each mounting slider. A shock-absorbing connecting rod is rotatably connected to the third mounting seat. A fourth mounting seat is rotatably connected to the other end of the shock-absorbing connecting rod. A shock-absorbing plate is fixedly connected to the bottom surface of the fourth mounting seat.

[0009] As a further embodiment of this utility model: the shock-absorbing part also includes a second shock-absorbing spring, a telescopic rod, a shock-absorbing rubber pad, and a pressure sensor. The second shock-absorbing spring and the telescopic rod are fixedly connected to both sides of the bottom surface of the lower pressure plate. The lower ends of the second shock-absorbing spring and the telescopic rod are fixedly connected to the shock-absorbing plate. The shock-absorbing rubber pad and the pressure sensor are fixedly connected to the bottom surface of the shock-absorbing plate. The pressure sensor is electrically connected to the drive motor.

[0010] Compared with existing technologies, the advantages of this utility model are: the device has a simple structure and practical function. The fixing part of the device enables smooth lifting and lowering of the pressure plate, providing stable pressure and fixing of the flexible circuit board, ensuring that the circuit board will not shift during processing and improving processing accuracy; the shock absorption part effectively absorbs excess impact force generated during the pressing process, preventing damage to the flexible circuit board due to excessive pressure, greatly improving the protection effect of the flexible circuit board; the pressure sensor is electrically connected to the drive motor, which can monitor the pressure in real time and provide feedback to the drive motor, realizing intelligent adjustment of the fixing pressure, adapting to the fixing needs of flexible circuit boards of different thicknesses and materials, and improving the applicability and intelligence of the fixing device. Attached Figure Description

[0011] Figure 1 This is a frontal view of a flexible circuit board fixing device.

[0012] Figure 2 This is a side view of an inverted U-shaped plate in a flexible circuit board fixing device.

[0013] Figure 3 This is a schematic diagram of the inverted U-shaped plate in a flexible circuit board fixing device.

[0014] In the diagram: 1. Support frame; 2. Workbench; 3. Fixing assembly; 301. Drive motor; 302. Motor plate; 303. Drive crossbar; 304. First drive bevel gear; 305. Second drive bevel gear; 306. Inverted U-shaped plate; 307. Transmission crossbar; 308. Transmission wheel; 309. Transmission belt; 310. Bidirectional threaded rod; 311. Drive screw block; 312. First mounting base; 313. Fixed connecting rod; 314. Second mounting base; 315. Lower pressure plate; 316. Mounting vertical plate; 317. Mounting slide rod; 318. Mounting slider; 319. First shock-absorbing spring; 320. Third mounting base; 321. Shock-absorbing connecting rod; 322. Fourth mounting base; 323. Shock-absorbing plate; 324. Second shock-absorbing spring; 325. Telescopic rod; 326. Shock-absorbing rubber pad; 327. Pressure sensor. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Example 1

[0020] Please see Figure 1-3 A flexible circuit board fixing device includes a support frame 1 and a workbench 2. The workbench 2 is fixedly connected to the bottom surface inside the support frame 1. The support frame 1 is connected to a fixing component 3. The fixing component 3 includes a fixing part and a shock-absorbing part. The fixing part is used to press down and fix the flexible circuit board, and the shock-absorbing part is used to absorb excess impact force during the pressing process to protect the workpiece.

[0021] The fixing part includes a drive motor 301, a motor plate 302, a drive crossbar 303, a first drive bevel gear 304, a second drive bevel gear 305, an inverted U-shaped plate 306, a transmission crossbar 307, a transmission wheel 308, and a transmission belt 309. The drive motor 301 is fixedly connected to the side wall of the support frame 1 through the motor plate 302. The output shaft of the drive motor 301 is fixedly connected to the drive crossbar 303. The end of the drive crossbar 303 passes through the support frame 1 and is fixedly connected to the first drive bevel gear 304. Two sets of symmetrically arranged inverted U-shaped plates 306 are fixedly connected to the top surface inside the support frame 1. The front side of each inverted U-shaped plate 306 is rotatably connected to the transmission crossbar 307. The transmission wheel 308 is fixedly connected to each transmission crossbar 307. The front end of one of the transmission crossbars 307 is fixedly connected to the second drive bevel gear 305. The first drive bevel gear 304 and the second drive bevel gear 305 mesh with each other.

[0022] The fixing assembly 3 also includes a bidirectional threaded rod 310, a drive screw block 311, a first mounting base 312, a fixed connecting rod 313, a second mounting base 314, and a lower pressure plate 315. One end of the transmission crossbar 307 is fixedly connected to the bidirectional threaded rod 310, and the other end of the bidirectional threaded rod 310 passes through the side wall of the inverted U-shaped plate 306 and is rotatably connected to the inner wall of the other side of the inverted U-shaped plate 306. Both the left and right sides of the bidirectional threaded rod 310 are threadedly connected to the drive screw block 311, and the bottom surface of the drive screw block 311 is fixedly connected to the first mounting base 312. The first mounting base 312 is rotatably connected to the fixed connecting rod 313, and the other end of the fixed connecting rod 313 is rotatably connected to the second mounting base 314. The bottom surface of the second mounting base 314 is fixedly connected to the lower pressure plate 315.

[0023] The flexible circuit board is placed on the workbench 2, and the drive motor 301 is started. The drive motor 301 drives the drive crossbar 303 to rotate through the output shaft. The first drive bevel gear 304 at the end of the drive crossbar 303 rotates accordingly. Since the first drive bevel gear 304 meshes with the second drive bevel gear 305, it drives the transmission crossbar 307 on one side to rotate. This transmission crossbar 307 drives the transmission crossbar 307 on the other side to rotate synchronously through the transmission belt 309 and the transmission wheel 308. When the transmission crossbars 307 on both sides rotate, they will drive the bidirectional threaded rod 310 fixedly connected to them to rotate. The drive screw blocks 311 on the left and right sides of the bidirectional threaded rod 310 move towards each other along the bidirectional threaded rod 310 under the action of the thread. Through the first mounting seat 312, the fixed connecting rod 313 and the second mounting seat 314, the lower pressure plate 315 moves downward until the shock-absorbing plate 323 contacts the flexible circuit board.

[0024] Example 2

[0025] This embodiment adds the following improvements to Embodiment 1: The shock-absorbing part includes a mounting vertical plate 316, a mounting slide rod 317, a mounting slider 318, a first shock-absorbing spring 319, a third mounting base 320, a shock-absorbing connecting rod 321, a fourth mounting base 322, and a shock-absorbing plate 323. The mounting vertical plate 316 is fixedly connected to both the left and right sides of the bottom surface of the lower pressure plate 315. A horizontally arranged mounting slide rod 317 is fixedly connected between the mounting vertical plates 316. The mounting slider 318 is slidably connected to both the left and right sides of the mounting slide rod 317. The first shock-absorbing spring 319 is fixedly connected between the mounting sliders 318. The third mounting base 320 is fixedly connected to the bottom surface of each mounting slider 318. The third mounting base 320 is rotatably connected to the shock-absorbing connecting rod 321. The other end of the shock-absorbing connecting rod 321 is rotatably connected to the fourth mounting base 322. The shock-absorbing plate 323 is fixedly connected to the bottom surface of the fourth mounting base 322.

[0026] The shock absorption unit also includes a second shock absorption spring 324, a telescopic rod 325, a shock absorption rubber pad 326, and a pressure sensor 327. The second shock absorption spring 324 and the telescopic rod 325 are fixedly connected to both sides of the bottom surface of the lower pressure plate 315. The lower ends of the second shock absorption spring 324 and the telescopic rod 325 are fixedly connected to the shock absorption plate 323. The shock absorption rubber pad 326 and the pressure sensor 327 are fixedly connected to the bottom surface of the shock absorption plate 323. The pressure sensor 327 is electrically connected to the drive motor 301.

[0027] During the contact between the shock-absorbing plate 323 and the flexible circuit board, if a large impact force is applied, the mounting slider 318 will slide on the mounting rod 317, compressing the first shock-absorbing spring 319. Simultaneously, the second shock-absorbing spring 324 and the telescopic rod 325 will also compress and undergo elastic deformation, collectively absorbing the impact force. The shock-absorbing rubber pad 326 acts as a buffer against contact pressure, protecting the surface of the flexible circuit board from scratches. During this process, the pressure sensor 327 monitors the pressure on the flexible circuit board in real time and feeds the pressure signal back to the drive motor 301. When the pressure reaches a preset value, the drive motor 301 stops running, achieving stable fixation of the flexible circuit board. If the pressure does not reach the preset value, the drive motor 301 continues to run until a suitable fixing pressure is reached.

[0028] After processing, the drive motor 301 rotates in the opposite direction, driving the screw block 311 to move in opposite directions, which in turn causes the lower pressure plate 315 to rise, thereby releasing the flexible circuit board for easy material removal.

[0029] Working principle

[0030] The flexible circuit board is placed on the workbench 2, and the drive motor 301 is started. The drive motor 301 drives the drive crossbar 303 to rotate through the output shaft. The first drive bevel gear 304 at the end of the drive crossbar 303 rotates accordingly. Since the first drive bevel gear 304 meshes with the second drive bevel gear 305, it drives the transmission crossbar 307 on one side to rotate. This transmission crossbar 307 drives the transmission crossbar 307 on the other side to rotate synchronously through the transmission belt 309 and the transmission wheel 308. When the transmission crossbars 307 on both sides rotate, they will drive the bidirectional threaded rod 310 fixedly connected to them to rotate. The drive screw blocks 311 on the left and right sides of the bidirectional threaded rod 310 move towards each other along the bidirectional threaded rod 310 under the action of the thread. Through the first mounting seat 312, the fixed connecting rod 313 and the second mounting seat 314, the lower pressure plate 315 moves downward until the shock-absorbing plate 323 contacts the flexible circuit board.

[0031] During the contact between the shock-absorbing plate 323 and the flexible circuit board, if a large impact force is applied, the mounting slider 318 will slide on the mounting rod 317, compressing the first shock-absorbing spring 319. Simultaneously, the second shock-absorbing spring 324 and the telescopic rod 325 will also compress and undergo elastic deformation, collectively absorbing the impact force. The shock-absorbing rubber pad 326 acts as a buffer against contact pressure, protecting the surface of the flexible circuit board from scratches. During this process, the pressure sensor 327 monitors the pressure on the flexible circuit board in real time and feeds the pressure signal back to the drive motor 301. When the pressure reaches a preset value, the drive motor 301 stops running, achieving stable fixation of the flexible circuit board. If the pressure does not reach the preset value, the drive motor 301 continues to run until a suitable fixing pressure is reached.

[0032] After processing, the drive motor 301 rotates in the opposite direction, driving the screw block 311 to move in opposite directions, which in turn causes the lower pressure plate 315 to rise, thereby releasing the flexible circuit board for easy material removal.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flexible circuit board fixing device, comprising a support frame and a worktable, characterized in that, The workbench is fixedly connected to the bottom surface inside the support frame. The support frame is connected to a fixing component, which includes a fixing part and a shock-absorbing part. The fixing part is used to press down and fix the flexible circuit board, and the shock-absorbing part is used to absorb excess impact force during the pressing process to protect the workpiece.

2. The flexible circuit board fixing device according to claim 1, characterized in that, The fixing part includes a drive motor, a motor plate, a drive crossbar, a first drive bevel gear, a second drive bevel gear, an inverted U-shaped plate, a transmission crossbar, a transmission wheel, and a transmission belt. The drive motor is fixedly connected to the side wall of the support frame through the motor plate. The output shaft of the drive motor is fixedly connected to the drive crossbar. The end of the drive crossbar passes through the support frame and is fixedly connected to the first drive bevel gear. Two sets of symmetrically arranged inverted U-shaped plates are fixedly connected to the top surface inside the support frame. The front side of each inverted U-shaped plate is rotatably connected to a transmission crossbar. A transmission wheel is fixedly connected to each transmission crossbar. The front end of one of the transmission crossbars is fixedly connected to the second drive bevel gear. The first drive bevel gear and the second drive bevel gear mesh with each other.

3. The flexible circuit board fixing device according to claim 2, characterized in that, The fixing assembly also includes a bidirectional threaded rod, a drive screw block, a first mounting base, a fixed connecting rod, a second mounting base, and a lower pressure plate. One end of the transmission crossbar is fixedly connected to the bidirectional threaded rod, and the other end of the bidirectional threaded rod passes through the side wall of the inverted U-shaped plate and is rotatably connected to the inner wall of the other side of the inverted U-shaped plate. Both sides of the bidirectional threaded rod are threadedly connected to drive screw blocks, and the bottom surface of each drive screw block is fixedly connected to the first mounting base. The first mounting base is rotatably connected to the fixed connecting rod, and the other end of the fixed connecting rod is rotatably connected to the second mounting base. The bottom surface of the second mounting base is fixedly connected to the lower pressure plate.

4. The flexible circuit board fixing device according to claim 3, characterized in that, The shock-absorbing unit includes a mounting vertical plate, a mounting slide rod, a mounting slider, a first shock-absorbing spring, a third mounting base, a shock-absorbing connecting rod, a fourth mounting base, and a shock-absorbing plate. The mounting vertical plates are fixedly connected to both the left and right sides of the bottom surface of the lower pressure plate. A horizontally arranged mounting slide rod is fixedly connected between the mounting vertical plates. Mounting sliders are slidably connected to both the left and right sides of the mounting slide rod. A first shock-absorbing spring is fixedly connected between the mounting sliders. A third mounting base is fixedly connected to the bottom surface of each mounting slider. A shock-absorbing connecting rod is rotatably connected to the third mounting base. The other end of the shock-absorbing connecting rod is rotatably connected to the fourth mounting base. A shock-absorbing plate is fixedly connected to the bottom surface of the fourth mounting base.

5. The flexible circuit board fixing device according to claim 4, characterized in that, The shock-absorbing part also includes a second shock-absorbing spring, a telescopic rod, a shock-absorbing rubber pad, and a pressure sensor. The second shock-absorbing spring and the telescopic rod are fixedly connected to both sides of the bottom surface of the lower pressure plate. The lower ends of the second shock-absorbing spring and the telescopic rod are fixedly connected to the shock-absorbing plate. The shock-absorbing rubber pad and the pressure sensor are fixedly connected to the bottom surface of the shock-absorbing plate. The pressure sensor is electrically connected to the drive motor.

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