FPC bending jig

By using a servo motor-driven rotating disk and limit positioning components, combined with cylinder-driven upper and lower mold alignment, continuous processing of FPC bending fixtures is achieved, solving the problem of slow production speed in existing technologies and improving production efficiency.

CN223600100UActive Publication Date: 2025-11-25SHENZHEN SANBUM OPTOELECTRONICS CO LTD
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Patent Information

Application Number
CN202422325992.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-24
Publication Date
2025-11-25
Estimated Expiration
2034-09-24

AI Technical Summary

Technical Problem

The existing FPC bending fixture has a discontinuous operation process, which leads to a decrease in production speed, mainly due to the time spent on product handling.

Method used

A bending fixture for FPCs was designed. A servo motor drives a rotating disk to rotate the lower bending die. The fixture uses limit and positioning components to achieve continuous bending of the flexible printed circuit board. Combined with a telescopic cylinder to drive the alignment of the upper and lower bending dies, continuous processing is achieved.

Benefits of technology

This improved the bending speed of flexible printed circuit boards, avoided downtime caused by single-station operation, and enabled continuous production.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223600100U_ABST
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Abstract

The utility model discloses an FPC bending jig which comprises an installation base, an installation frame is fixedly arranged at the top of the installation base, a servo motor is fixedly arranged at the bottom of the installation frame, and a rotating shaft is fixedly arranged at the output end of the servo motor. The output end of the servo motor drives the lower bending die to rotate through the rotating disc, so that the lower bending die continuously rotates to the position under the bending assembly, meanwhile, the position of the lower bending die is positioned through the positioning assembly, and the lower bending die and an upper bending die arranged in the positioning assembly are in a vertical alignment state; therefore, the flexible printed circuit board can be continuously bent, the situation that bending equipment needs to be stopped to take down the bent flexible printed circuit board and place the non-bent flexible printed circuit board after one flexible printed circuit board is bent due to a single station is avoided, the situation that the bending equipment is stopped for a long time is avoided, and the bending efficiency is improved. Therefore, the bending speed of the flexible printed circuit board is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to FPC bending technical field especially relates to a kind of FPC bending jigs. BACKGROUND

[0002] FPC is flexible printed circuit board, has many unique characteristics and extensive application, FPC can be bent, folded in three-dimensional space, adapt to various complex shapes and space restrictions, provide great flexibility for the design of electronic products, FPC thin, light in weight, help to reduce the volume and weight of electronic products, meet the development trend of modern electronic products light and thin, compared with traditional rigid printed circuit board, FPC can save more space for equipment, make product more portable.

[0003] And before FPC is used, FPC is bent according to use demand, FPC is bent into the shape of suitable use, so that FPC adapts to the limited space inside product, better fits the shape of product, usually FPC is bent by bending jig.

[0004] And FPC bending jig is used in the process, usually FPC is placed in the mold inside bending jig, and FPC is bent by moving up mould downwards, most of which are single-station mould, after completing the bending of one FPC, it is taken out, and the next FPC to be processed is placed and operated, and the discontinuous operation process can consume more time in product taking and placing action, instead of actual bending process, further reduce production speed, based on above problem, the present application provides a kind of FPC bending jig. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides a kind of FPC bending jig, to solve the problems presented in the above background art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A kind of FPC bending jig, including installation base, the installation base top is fixedly arranged with mounting bracket, the mounting bracket bottom is fixedly arranged with servo motor, the output of servo motor is fixedly arranged with rotating shaft, the rotating shaft top is provided with rotating disc, the rotating shaft top is provided with lower bending mould by rotating disc, the lower bending mould inside is overlapped and arranged with flexible printed circuit board, the lower bending mould is provided with the limiting assembly for the position of flexible printed circuit board, the side of lower bending mould close to the edge of installation base is provided with the positioning assembly for the position of lower bending mould, the installation base top is provided with the bending assembly for the bending of flexible printed circuit board.

[0008] Preferably, the rotating disc comprises a rotating disc arranged above the output end of the servo motor, the bottom of the rotating disc is provided with a mounting hole, a metal ball is arranged in the mounting hole, a limiting plate is fixedly arranged at the bottom of the rotating disc, the limiting plate is fixedly installed on the output end of the servo motor, a limiting hole is arranged through the top of the limiting plate, and the limiting hole is arranged in the limiting plate.

[0009] Preferably, the limiting assembly comprises a screw rod arranged in the lower bending die in a threaded manner, one end of the screw rod is fixedly provided with a knob, the other end of the screw rod is fixedly provided with a rotating plate, a connecting ring is arranged on the surface of the screw rod in a rotating manner, a circular groove is arranged in the connecting ring, the rotating plate is arranged in a rotating connection manner with the circular groove, a limiting clamp plate is fixedly arranged on the side of the connecting ring close to the flexible printed circuit board, a guide rod is fixedly arranged on the side of the limiting clamp plate close to the connecting ring, and the guide rod is arranged in the lower bending die in a sliding manner.

[0010] Preferably, the positioning assembly comprises a U-shaped connecting plate fixedly installed on one side of the lower bending die close to the edge of the mounting base, a rectangular plate is arranged in the U-shaped connecting plate in a sliding manner, a spring and a moving rod are fixedly arranged on the side of the rectangular plate away from the lower bending die, a pressure sensor is arranged on the end of the moving rod in a clamping manner, a pushing plate is arranged on the surface of the pressure sensor in a clamping manner, and the pushing plate is arranged on the bending assembly.

[0011] Preferably, the bending assembly comprises an L-shaped fixed plate fixedly installed on the top of the mounting base, a telescopic air cylinder is fixedly arranged on the top of the L-shaped fixed plate, an upper bending die is fixedly arranged on the output end of the telescopic air cylinder, and a limiting rod is fixedly arranged on the top of the upper bending die and arranged in the L-shaped fixed plate in a sliding manner.

[0012] Preferably, the number of the lower bending dies is several, and the several lower bending dies are arranged in a circular array, and the lower bending dies are made of metal.

[0013] Preferably, one end of the moving rod close to the pressure sensor is in a semispherical shape, the pushing plate is in an arc shape, and the moving rod and the pushing plate are made of metal.

[0014] Compared with the prior art, the FPC bending jig has the beneficial effects that: the servo motor output end drives the lower bending die to rotate through the rotating disc, so that the lower bending die continuously rotates to be directly below the bending assembly, and the position of the lower bending die is positioned through the positioning assembly, so that the lower bending die is in a vertical alignment state with the upper bending die arranged in the positioning assembly, thereby the flexible printed circuit board can be continuously bent, and the bending equipment is stopped to take out the bent flexible printed circuit board and place the unbent flexible printed circuit board after one flexible printed circuit board is bent in a single station, the long time of the bending equipment stopping process is avoided, and the bending speed of the flexible printed circuit board is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure of the utility model is shown in the figure;

[0016] Figure 2 The longitudinal section structure of the utility model is shown in the figure;

[0017] Figure 3 The rotating disc structure of the utility model is shown in the figure;

[0018] Figure 4 The local structure of the utility model is shown in the figure;

[0019] Figure 5 The limiting assembly structure of the utility model is shown in the figure;

[0020] Figure 6 The positioning assembly structure of the utility model is shown in the figure.

[0021] In the figure: 1, mounting base; 2, mounting frame; 3, servo motor; 4, rotating shaft; 5, lower bending die; 6, rotating disc; 7, mounting hole; 8, metal ball; 9, limiting plate; 10, limiting hole; 11, knob; 12, rotating plate; 13, connecting ring; 14, limiting clamp plate; 15, guide rod; 16, flexible printed circuit board; 17, U-shaped connecting plate; 18, rectangular plate; 19, spring; 20, moving rod; 21, pressure sensor; 22, push plate; 23, L-shaped fixed plate; 24, telescopic air cylinder; 25, upper bending die; 26, limiting rod; 27, screw rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Referring to Figures 1-6The utility model provides a kind of FPC bending jig, including installation base 1, installation base 1 top is fixedly arranged with mounting bracket 2, mounting bracket 2 bottom is fixedly arranged with servo motor 3, the output of servo motor 3 is fixedly arranged with rotating shaft 4, rotating shaft 4 top is provided with rotating disc, rotating shaft 4 top is provided with lower bending mould 5 by rotating disc, lower bending mould 5 inside is overlapped and arranged with flexible printed circuit board 16, the quantity of lower bending mould 5 is several, and several lower bending mould 5 is circular array distribution, lower bending mould 5 is made of metal material, by the setting of several lower bending mould 5, one lower bending mould 5 can be placed into unused lower bending mould 5 inside when using, so that the lower bending mould 5 into bending assembly is placed with flexible printed circuit board 16, lower bending mould 5 is provided with the position limiting assembly for the position of flexible printed circuit board 16 is limited, the side of lower bending mould 5 close to the edge of installation base 1 is provided with the positioning assembly for the position of lower bending mould 5 is positioned, positioning assembly includes the U-shaped connecting plate 17 of being fixedly installed in the side of lower bending mould 5 close to the edge of installation base 1, the rectangular plate 18 of being slidably arranged in U-shaped connecting plate 17, the side of rectangular plate 18 away from lower bending mould 5 is fixedly arranged with spring 19 and moving rod 20, moving rod 20 end portion is overlapped and arranged with pressure sensor 21, pressure sensor 21 surface is overlapped and arranged with push plate 22, the one end of moving rod 20 close to pressure sensor 21 is hemispherical, push plate 22 is arc structure, moving rod 20 and push plate 22 are made of metal material, and end portion is hemispherical moving rod 20 can be better moved on the surface of push plate 22, the resistance of moving rod 20 on the surface of push plate 22 is reduced, and the moving rod 20 and push plate 22 made of metal are not prone to deformation bending, so that moving rod 20 can exert pressure on the detection end of pressure sensor 21, push plate 22 is arranged on bending assembly, lower bending mould 5 moves moving rod 20 by U-shaped connecting plate 17, so that rectangular plate 18 drives spring 19 to move, when the spherical end of moving rod 20 contacts the inclined surface of right push plate 22, rectangular plate 18 stretches spring 19 by moving rod 20, when moving rod 20 moves to be horizontally aligned with pressure sensor 21, the detection end of pressure sensor 21 is extruded by the rebound of spring 19 by rectangular plate 18 pushing moving rod 20, so that pressure sensor 21 contacts pressure change, then servo motor 3 stops running, positioning assembly operates, so as to facilitate the position of lower bending mould 5 is positioned, avoid the deviation between lower bending mould 5 and positioning assembly, cause flexible printed circuit board 16 bending to appear error, installation base 1 top is provided with the bending assembly for bending flexible printed circuit board 16, servo motor 3 output end rotates lower bending mould 5 by rotating disc, lower bending mould 5 moves flexible printed circuit board 16 to the lower side of bending assembly by limiting assembly,Thus, the lower bending die 5 can continuously move into the bending assembly, so that the flexible printed circuit board 16 can be continuously bent, and the time for taking and placing the flexible printed circuit board 16 is reduced, so that the bending speed of the flexible printed circuit board 16 is improved.

[0024] Specifically, the rotating disc includes a rotating disc 6 arranged above the output end of the servo motor 3, the bottom of the rotating disc 6 is provided with a mounting hole 7, a metal ball 8 is arranged in the mounting hole 7 in a lap joint manner, a limiting plate 9 is fixedly arranged at the bottom of the rotating disc 6, the limiting plate 9 is fixedly arranged on the output end of the servo motor 3, a limiting hole 10 is arranged through the top of the limiting plate 9, the limiting hole 10 is arranged in a lap joint manner with the metal ball 8, the limiting plate 9 is rotated by the rotating shaft 4, and the rotating disc 6 is rotated by the limiting plate 9, so that the metal ball 8 rolls in the mounting hole 7 and the limiting hole 10, and the rotating disc moves more smoothly, and friction between the rotating disc and the mounting base 1 during movement is avoided.

[0025] Specifically, the limiting assembly includes a screw rod 27 arranged in the lower bending die 5 in a threaded manner, one end of the screw rod 27 is fixedly provided with a knob 11, the other end of the screw rod 27 is fixedly provided with a rotating plate 12, the surface of the screw rod 27 is rotatably provided with a connecting ring 13, a circular groove is arranged in the connecting ring 13, the rotating plate 12 is rotatably arranged in the circular groove in a connecting manner, the side of the connecting ring 13 close to the flexible printed circuit board 16 is fixedly provided with a limiting clamp plate 14, the side of the limiting clamp plate 14 close to the connecting ring 13 is fixedly provided with a guide rod 15, the guide rod 15 is arranged in the lower bending die 5 in a sliding manner, the screw rod 27 is rotated by rotating the knob 11, so that the screw rod 27 pushes the limiting clamp plate 14 to contact the flexible printed circuit board 16 through the rotating plate 12 and the connecting ring 13, so as to limit the position of the flexible printed circuit board 16, and deviation of the placement position of the flexible printed circuit board 16 during movement is avoided.

[0026] Specifically, the bending assembly includes an L-shaped fixed plate 23 fixedly arranged at the top of the mounting base 1, the top of the L-shaped fixed plate 23 is fixedly provided with a telescopic pneumatic cylinder 24, the output end of the telescopic pneumatic cylinder 24 is fixedly provided with an upper bending die 25, the top of the upper bending die 25 is fixedly provided with a limiting rod 26, the limiting rod 26 is arranged in the L-shaped fixed plate 23 in a sliding manner, the output end of the telescopic pneumatic cylinder 24 pushes the upper bending die 25 into the lower bending die 5, and the upper bending die 25 is guided by the limiting rod 26, so that the flexible printed circuit board 16 in the lower bending die 5 can be bent.

[0027] The FPC bending jig is connected with 220V mains, and the main control unit can be a conventional known device such as a computer.

[0028] In use: the flexible printed circuit board 16 is placed inside the lower bending mold 5, the knob 11 is rotated to drive the screw rod 27 to rotate, the screw rod 27 drives the connecting ring 13 to move towards the flexible printed circuit board 16 through the rotating plate 12, the limiting clamp plate 14 is in contact with the flexible printed circuit board 16, and the movement direction of the limiting clamp plate 14 is limited and guided by the guide rod 15, so that the position of the flexible printed circuit board 16 is limited, the rotating shaft 4 is driven to rotate by the servo motor 3, the limiting plate 9 is rotated by the rotating shaft 4, and the rotating disc 6 is rotated by the limiting plate 9, so that the metal ball 8 rolls in the mounting hole 7 and the limiting hole 10, the rotating disc 6 drives the lower bending mold 5 to rotate, the lower bending mold 5 drives the flexible printed circuit board 16 to move to the lower side of the upper bending mold 25 through the limiting assembly, and in the movement process of the lower bending mold 5, the U-shaped connecting plate 17 is driven to move, the rectangular plate 18 is driven to move by the U-shaped connecting plate 17 through the moving rod 20, and the spring 19 is driven to move by the rectangular plate 18, when the spherical end of the moving rod 20 is in contact with the inclined surface of the right pushing plate 22, the pushing plate 22 pushes the moving rod 20 to move towards the lower bending mold 5, so that the moving rod 20 stretches the spring 19 by pushing the rectangular plate 18, when the moving rod 20 moves to be horizontally aligned with the pressure sensor 21, the spring 19 drives the rectangular plate 18 to move through the rebound effect, and the moving rod 20 is extruded by the rectangular plate 18 to press the detection end of the pressure sensor 21, at this time the spring 19 is still in the stretched state, so that the pressure sensor 21 contacts the pressure change, and the servo motor 3 stops working, the telescopic pneumatic cylinder 24 drives the output end to push the upper bending mold 25 to move downwards, and the upper bending mold 25 is guided by the limiting rod 26, when the upper bending mold 25 enters the inside of the lower bending mold 5, the upper bending mold 25 bends the flexible printed circuit board 16, wherein the lower bending mold 5 continuously moves to the lower side of the upper bending mold 25 through the positioning assembly, so as to continuously bend the flexible printed circuit board 16.

[0029] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An FPC bending jig comprising a mounting base (1), characterized in that, The mounting base (1) top fixedly provided with mounting rack (2), the mounting rack (2) bottom fixedly provided with servo motor (3), the output of servo motor (3) fixedly provided with rotating shaft (4), the rotating shaft (4) top end is provided with rotating disc, the rotating shaft (4) top end is provided with lower bending die (5) through rotating disc, the lower bending die (5) inside lap provided with flexible printed circuit board (16), the lower bending die (5) on be provided with for the position of flexible printed circuit board (16) is limited and is limited component, the lower bending die (5) is close to the edge of mounting base (1) one side is provided with the positioning assembly of facilitating to the position of lower bending die (5) is positioned, the mounting base (1) top is provided with the bending assembly of facilitating to the bending of flexible printed circuit board (16).

2. The FPC bending jig according to claim 1, wherein The rotating disc includes the rotating disc (6) that is set on the output of servo motor (3), the rotating disc (6) bottom is provided with mounting hole (7), the mounting hole (7) inside lap provided with metal ball (8), the rotating disc (6) bottom fixedly provided with limit board (9), the limit board (9) is fixedly installed on the output of servo motor (3), the limit board (9) top is provided with limit hole (10), the limit hole (10) and metal ball (8) are lap set.

3. The FPC bending jig according to claim 1, wherein The limiting component includes screw rod (27) that is set in the inside of lower bending die (5), one end of screw rod (27) is fixedly provided with knob (11), the other end of screw rod (27) is fixedly provided with rotating plate (12), the surface of screw rod (27) is rotatably provided with connecting ring (13), the inside of connecting ring (13) is provided with circular groove, the rotating plate (12) is rotatably connected with the circular groove, the side of connecting ring (13) close to flexible printed circuit board (16) is fixedly provided with limit clamping plate (14), the side of limit clamping plate (14) close to connecting ring (13) is fixedly provided with guide rod (15), the guide rod (15) is slidably arranged in the inside of lower bending die (5).

4. The FPC bending jig according to claim 1, wherein The positioning assembly includes the U-shaped connecting plate (17) that is fixedly installed on the side of lower bending die (5) close to the edge of mounting base (1), the inside of U-shaped connecting plate (17) is slidably provided with rectangular plate (18), the side of rectangular plate (18) away from lower bending die (5) is fixedly provided with spring (19) and moving rod (20), the end of moving rod (20) lap is provided with pressure sensor (21), the surface of pressure sensor (21) lap is provided with push plate (22), the push plate (22) is arranged on the bending assembly.

5. The FPC bending jig according to claim 1, wherein The bending assembly comprises an L-shaped fixing plate (23) fixedly installed on the top of the mounting base (1), the top of the L-shaped fixing plate (23) is fixedly provided with a telescopic air cylinder (24), the output end of the telescopic air cylinder (24) is fixedly provided with an upper bending die (25), the top of the upper bending die (25) is fixedly provided with a limiting rod (26), and the limiting rod (26) is slidingly arranged in the L-shaped fixing plate (23).

6. The FPC bending jig according to claim 1, wherein The number of the lower bending dies (5) is several, and the several lower bending dies (5) are distributed in a circular array, and the lower bending dies (5) are made of metal.

7. The FPC bending jig according to claim 4, wherein The end of the moving rod (20) close to the pressure sensor (21) is in a semispherical shape, the pushing plate (22) is in an arc-shaped structure, and the moving rod (20) and the pushing plate (22) are both made of metal.