Device for assisting FPC (Flexible Printed Circuit) in bending

Abstract

The invention provides a device for assisting an FPC in bending, and belongs to the technical field of mobile phone manufacturing, the device comprises a shaft bracket base, the top of one side of the shaft bracket base is provided with a distance adjusting platform, the top of the distance adjusting platform is provided with an angle adjusting platform, and the top of the angle adjusting platform is provided with a product positioning plate; two bearing frames are installed on the top of the other side of the shaft bracket base, the two sides of one end of each bearing frame are rotationally connected with the two sides of one side of the shaft bracket base, FPC positioning plates are installed in the two bearing frames, FPC positioning grooves are formed in the inner side faces of the FPC positioning plates, and magnets are installed in the tail ends of the FPC positioning grooves in an embedded mode. According to the invention, adverse risks caused by processing errors and assembly errors are eliminated, and meanwhile, the device is used for alignment, so that the alignment standard is unified, the manual specificity difference is reduced, and the yield is improved; and meanwhile, the FPC is fixed by matching the thick steel sheet with the magnet, so that the FPC does not slip in the rotating process, and the stability of the bending process is improved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of mobile phone manufacturing, and in particular to a device for assisting FPC in bending. Background Art

[0002] The bending process of the FPC (flexible printed circuit board) of the mobile phone module is an important part of the mobile phone manufacturing process. It ensures that the FPC can adapt to the complex and compact space layout inside the mobile phone while maintaining its electrical properties and reliability. Bending at room temperature is suitable for most FPC bending needs;

[0003] FPC bending is a delicate and important process that needs to be operated in strict accordance with design requirements and process specifications. On the backlight surface of the mobile phone, there is an FPC bending positioning line engraved to check whether the FPC is in the correct position after bending. The quality of the FPC bending process is ensured by controlling reasonable bending technology and precautions.

[0004] However, the current FPC bending process requires manual visual alignment, which can easily cause visual fatigue and inaccurate positioning, resulting in misalignment of the bend. In addition, since FPC is made of flexible material, employees have different personal techniques, which can lead to misalignment after bending. In addition, the employee flow in this process is large, making manual training impossible. Summary of the invention

[0005] The present invention mainly provides a device for assisting FPC in bending to solve the technical problems raised in the above background technology.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A device for assisting FPC in bending, comprising a shaft frame base, the shaft frame base is an L-shaped structure, a distance adjustment platform is installed on the top of one side of the shaft frame base, an angle adjustment platform is installed on the top of the distance adjustment platform, and a product positioning plate is installed on the top of the angle adjustment platform;

[0008] Two bearing frames are installed on the top of the other side of the shaft frame base, and the two sides of one end of the two bearing frames are rotatably connected to the two sides of one side of the shaft frame base. FPC positioning plates are installed inside the two bearing frames, and the inner side of the FPC positioning plates is provided with FPC positioning grooves, and the end of the FPC positioning groove is embedded with a magnet.

[0009] Furthermore, in the present invention, bearings are installed on both sides of one end where the shaft frame base is connected to the bearing frame, and the shaft frame base is rotatably connected to the bearing frame via the bearings.

[0010] Furthermore, in the present invention, torsion springs are installed on the two bearings, and two ends of the torsion springs are respectively clamped on the bearing frame and the shaft frame base.

[0011] Furthermore, in the present invention, a limiting shaft is installed on the inner side of one end of the bearing frame connected to the shaft frame base, and when the bearing frame and the product positioning plate are at an angle of 150°, the limiting shaft is in contact with the shaft frame base.

[0012] Furthermore, in the present invention, a thick steel sheet is embedded and installed inside the FPC positioning groove at the edge of the magnet, and the thickness of the thick steel sheet is 1 mm.

[0013] Furthermore, in the present invention, a pressing sheet is installed at the center of the back side of the FPC positioning plate, and the end of the pressing sheet is located in the area of ​​the FPC positioning plate close to the rotating end.

[0014] Furthermore, in the present invention, a sponge block is provided on the inner side of the end of the pressing sheet, and two strip grooves are provided at one end of the pressing sheet connected to the FPC positioning plate. The pressing sheet is connected to the FPC positioning plate by installing bolts in the two strip grooves.

[0015] Furthermore, in the present invention, the FPC positioning plate and the bearing frame are connected and fixed by a plurality of fixing bolts.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention utilizes a distance adjustment platform and an angle adjustment platform to eliminate the adverse risks caused by processing errors and assembly errors. At the same time, the device itself is used for alignment, which unifies the alignment standard, reduces manual specific differences, and improves the yield rate. The operation is simple, no manual training is required, the learning cost is reduced, and the efficiency is improved.

[0018] This device uses thick steel sheets and magnets to fix the FPC, so that the FPC does not slip during rotation, which improves the stability of the bending process. Except for the product positioning plate and the FPC positioning plate, other components are universal. The distance adjustment platform and the angle adjustment platform are compatible with most small-size LCM screens. The product positioning plate and the FPC positioning plate are inexpensive. When connecting to new projects in the future, you only need to replace the product positioning plate and the FPC positioning plate, which reduces the cost of the device.

[0019] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an exploded view of the overall structure of the present invention;

[0021] Figure 2It is a schematic diagram of the closed state of the overall structure of the present invention;

[0022] Figure 3 This is a first viewing angle diagram of the overall structure of the present invention in an unfolded state;

[0023] Figure 4 for Figure 3 A magnified image of area A;

[0024] Figure 5 A second viewing angle diagram of the overall structure of the present invention in an unfolded state;

[0025] Figure 6 for Figure 5 Magnified view of area B.

[0026] In the figure: 1. Product positioning plate; 2. Angle adjustment platform; 3. Distance adjustment platform; 4. Axle frame base; 5. Bearing frame; 6. FPC positioning plate; 7. Torsion spring; 8. Bearing; 9. Pressing plate; 10. FPC positioning groove; 11. Magnet; 12. Thick steel sheet; 13. Limiting shaft. DETAILED DESCRIPTION

[0027] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] For examples, please refer to the attached Figure 1-6, a device for assisting FPC in bending, comprising a shaft frame base 4, the shaft frame base 4 is an L-shaped structure, a distance adjustment platform 3 is installed on the top of one side of the shaft frame base 4, an angle adjustment platform 2 is installed on the top of the distance adjustment platform 3, and a product positioning plate 1 is installed on the top of the angle adjustment platform 2;

[0031] Two bearing frames 5 are installed on the top of the other side of the shaft frame base 4, and the two sides of one end of the two bearing frames 5 are rotatably connected to the two sides of one side of the shaft frame base 4, and FPC positioning plates 6 are installed inside the two bearing frames 5. The inner side surface of the FPC positioning plate 6 is provided with an FPC positioning groove 10, and a magnet 11 is embedded and installed inside the end of the FPC positioning groove 10.

[0032] It should also be noted that the distance adjustment platform 3 and the angle adjustment platform 2 are existing micrometer displacement platform structures, which are existing technologies and will not be introduced in detail.

[0033] For details, please refer to the attached Figure 1 , bearings 8 are installed on both sides of one end of the shaft frame base 4 connected to the bearing frame 5, and the shaft frame base 4 is rotatably connected to the bearing frame 5 through the bearing 8;

[0034] It should be noted that, in this embodiment, the bearing 8 can reduce the friction effect on the shaft. The device needs to operate continuously and open and close thousands of times a day. If the bearing 8 is not used as the bearing component of the rotary motion pair, the life of the device will be greatly reduced.

[0035] For details, please refer to the attached Figure 4 , torsion springs 7 are installed on the two bearings 8, and the two ends of the torsion springs 7 are respectively clamped on the bearing frame 5 and the shaft frame base 4;

[0036] It should be noted that, in this embodiment, the torsion spring 7 can make the device normally open when not under stress, so that it can be automatically opened, which is convenient for the staff to place the next set of FPC and the backlight of the mobile phone on the product positioning plate 1 and the FPC positioning plate 6, thereby increasing work efficiency;

[0037] It should also be noted that since the FPC positioning plate 6 has a certain weight, if there is no torsion spring 7, the FPC positioning plate 6 will easily hit the product positioning plate 1 when closed, and the product positioning plate 1 and the angle adjustment platform 2 are fixedly connected by bolts. Continuous collisions will easily cause the product positioning plate 1 to shift, thereby increasing the frequency of adjustment of the angle adjustment platform 2 and the distance adjustment platform 3, affecting work efficiency.

[0038] For details, please refer to the attached Figure 4The bearing frame 5 is connected to the shaft frame base 4 and a limiting shaft 13 is installed on the inner side of one end thereof. When the bearing frame 5 and the product positioning plate 1 are at an angle of 150°, the limiting shaft 13 is in contact with the shaft frame base 4;

[0039] It should be noted that, in this embodiment, the limiting shaft 13 allows the maximum opening and closing angle to be 150°, so as to prevent the FPC positioning plate 6 from excessive displacement and affecting the subsequent bending work of the FPC.

[0040] For details, please refer to the attached Figure 6 A thick steel sheet 12 is embedded and installed inside the FPC positioning groove 10 at the edge of the magnet 11, and the thickness of the thick steel sheet 12 is 1 mm;

[0041] It should be noted that, in this embodiment, the FPC positioning plate 6 is used to position the FPC, and a 0.2 mm thick steel sheet is installed at the end of the FPC, so a magnet 11 is provided at the corresponding position of the FPC positioning plate 6. However, since the steel sheet on the FPC is relatively thin, a 1 mm thick steel sheet 12 is simultaneously embedded at the edge of the magnet 11 to clamp the steel sheet of the FPC, so that the FPC will not slip during the opening and closing process of the FPC positioning plate 6;

[0042] It should also be noted that since the FPC positioning plate 6 is conventionally made of magnetic wood, it is easily worn out due to continuous processing, and the thick steel sheet 12 can prevent the FPC positioning groove 10 from being worn at the engagement, thereby increasing the life of the device.

[0043] For details, please refer to the attached Figure 2 A pressing sheet 9 is installed at the center of the back of the FPC positioning plate 6, and the end of the pressing sheet 9 is located in the area of ​​the FPC positioning plate 6 close to the rotating end;

[0044] Furthermore, a sponge block is provided on the inner side of the end of the pressing sheet 9, and two strip grooves are provided on one end of the pressing sheet 9 connected to the FPC positioning plate 6, and the pressing sheet 9 is connected to the FPC positioning plate 6 by installing bolts in the two strip grooves;

[0045] It should be noted that, in this embodiment, when the FPC positioning plate 6 is in the open state, when the FPC is placed in the FPC positioning groove 10, the end of the pressing plate 9 will bend the end of the FPC. When the FPC positioning plate 6 is subsequently closed, the FPC can be pressurized without manually pressing the FPC again, thereby reducing the work flow and increasing work efficiency. In addition, the position of the pressing plate 9 can be adjusted to ensure the bending effect.

[0046] Furthermore, in the present invention, the FPC positioning plate 6 and the bearing frame 5 are connected and fixed by a plurality of fixing bolts;

[0047] It should be noted that, in this embodiment, the FPC positioning plate 6 and the bearing frame 5 can be disassembled so that the FPC positioning plate 6 can be replaced.

[0048] The specific operation mode of the present invention is as follows:

[0049] During the initial operation, the angle adjustment platform 2 and the distance adjustment platform 3 need to be adjusted to the appropriate position. When bending, the steel sheet at the end of the FPC is sucked onto the magnet 11 of the FPC positioning plate 6, and closed until the product positioning plate 1 and the FPC positioning plate 6 are parallel. At this time, the two plates are parallel and the distance is 2mm. At the same time, the pressing sheet 9 maintains the pressure on the FPC. After the fitting is completed, the FPC positioning plate 6 is released, and the FPC positioning plate 6 is bounced open by the force of the torsion spring 7 to proceed to the next process.

[0050] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A device for assisting FPC in bending, comprising a shaft frame base (4), characterized in that: The shaft frame base (4) is an L-shaped structure, a distance adjustment platform (3) is installed on the top of one side of the shaft frame base (4), an angle adjustment platform (2) is installed on the top of the distance adjustment platform (3), and a product positioning plate (1) is installed on the top of the angle adjustment platform (2); Two bearing frames (5) are installed on the top of the other side of the shaft frame base (4), and the two sides of one end of the two bearing frames (5) are rotatably connected to the two sides of one side of the shaft frame base (4). FPC positioning plates (6) are installed inside the two bearing frames (5), and the inner side surface of the FPC positioning plate (6) is provided with an FPC positioning groove (10), and a magnet (11) is embedded and installed inside the end of the FPC positioning groove (10).

2. The device for assisting FPC bending according to claim 1, characterized in that: Bearings (8) are installed on both sides of one end where the shaft frame base (4) is connected to the bearing frame (5), and the shaft frame base (4) is rotatably connected to the bearing frame (5) via the bearing (8).

3. The device for assisting FPC in bending according to claim 2, characterized in that: Torsion springs (7) are installed on the two bearings (8), and two ends of the torsion springs (7) are respectively clamped on the bearing frame (5) and the shaft frame base (4).

4. The device for assisting FPC bending according to claim 3, characterized in that: A limiting shaft (13) is installed on the inner side of one end of the bearing frame (5) connected to the shaft frame base (4); when the bearing frame (5) and the product positioning plate (1) are at an angle of 150°, the limiting shaft (13) is in contact with the shaft frame base (4).

5. The device for assisting FPC bending according to claim 1, characterized in that: A thick steel sheet (12) is embedded and installed inside the FPC positioning groove (10) at the edge of the magnet (11), and the thickness of the thick steel sheet (12) is 1 mm.

6. The device for assisting FPC bending according to claim 1, characterized in that: A pressing sheet (9) is installed at the center of the back side of the FPC positioning plate (6), and the end of the pressing sheet (9) is located in the area of ​​the FPC positioning plate (6) close to the rotating end.

7. The device for assisting FPC bending according to claim 6, characterized in that: A sponge block is arranged on the inner side of the end of the pressing sheet (9), and two strip grooves are arranged at one end of the pressing sheet (9) connected to the FPC positioning plate (6). The pressing sheet (9) is connected to the FPC positioning plate (6) by installing bolts in the two strip grooves.

8. The device for assisting FPC bending according to claim 1, characterized in that: The FPC positioning plate (6) and the bearing frame (5) are connected and fixed by a plurality of fixing bolts.

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