S-shaped bending device for flexible circuit board

Abstract

The utility model discloses an S-shaped bending device for a flexible circuit board, and relates to the field of flexible circuit board detection. The S-shaped bending device for the flexible circuit board comprises a bending piece and a circuit board traction piece, the bending part comprises a bending frame and a rotating support, two sets of bending rollers are arranged in the middle of the rotating support in a sliding mode, bending pressing wheels are fixedly installed on the outer surfaces of the bending rollers, and a two-way adjusting lead screw is arranged between the two sets of bending rollers; the circuit board traction piece comprises a traction bracket and a circuit board clamping table. According to the S-shaped bending device for the flexible circuit board, the two sets of bending pressing wheels move synchronously by rotating the two-way adjusting lead screw, the flexible circuit board is arranged between the two sets of bending pressing wheels in a penetrating mode, and when the S-shaped bending device is used, the servo motor drives the rotating support to rotate, so that the two sets of bending pressing wheels conduct S-shaped bending on the flexible circuit board from the two sides; during bending, uniform bending is carried out through the bending pinch roller, so that friction and breakage between the clamping piece and the flexible circuit board are avoided, and meanwhile, bending tests with different radians can be conveniently carried out.

Description

TECHNICAL FIELD

[0001] The utility model relates to flexible circuit board detection technical field, concretely is flexible circuit board S shape bending device. BACKGROUND

[0002] Because modern high -tech product volume is more and more small, such as smart mobile phone, smart watch, bluetooth headset etc. are in very small space need to assemble many flexible circuit board, battery, button etc. simultaneously, in actual assembly process, not flatly put in the device, but need to fold to avoid battery, button and other components, therefore, need to do enough folding test to flexible circuit board when production and processing to ensure that the folding project in subsequent assembly does not have any influence on product.

[0003] The existing detection scheme adopts the clamp to clamp the flexible circuit board to carry out repeated bending fatigue test, however, in actual operation process, when the circuit board is bent, more damaged parts are caused by friction and extrusion at the folding place with the clamp, this cannot truly reflect the bending resistance of the flexible circuit board, and the bending curvature cannot be adjusted according to the actual installation scene during testing, therefore, the utility model provides a flexible circuit board S shape bending device to solve the above problems. SUMMARY

[0004] In view of the defects of the prior art, the utility model provides a flexible circuit board S shape bending device, solves the problem that in the existing detection scheme, when the circuit board is bent, more damaged parts are caused by friction and extrusion at the folding place with the clamp, cannot truly reflect the bending resistance of the flexible circuit board, and the bending curvature cannot be adjusted according to the actual installation scene during testing.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a flexible circuit board S shape bending device, comprising a bending piece, the two sides of the bending piece are provided with a circuit board traction piece;

[0006] The bending piece comprises a bending frame and a rotating support rotatably arranged in the bending frame, the middle part of the rotating support is slidably provided with two groups of bending rollers, the outer surface of the bending roller is fixedly installed with a bending pressure roller, and a bidirectional adjusting screw rod is arranged between the two groups of bending rollers.

[0007] The circuit board traction piece comprises a traction bracket and a circuit board clamping table slidably arranged on the traction bracket.

[0008] Preferably, the circuit board traction piece and the bending piece are arranged perpendicular to each other, and the circuit board traction piece and the bottom of the bending piece are fixedly installed with a test carrier plate.

[0009] Preferably, one side of the bending frame is internally fixedly provided with a servo motor, and a transmission chain is installed between the servo motor and the rotating support.

[0010] Preferably, the outer surface of the rotating support is provided with a sliding groove, the bending roller is slidingly arranged in the sliding groove, and the bidirectional adjusting screw rod is rotationally connected in the sliding groove.

[0011] Preferably, the sliding groove is internally slidingly connected with sliding blocks at both ends, the two groups of sliding blocks are threadedly connected to the outer surfaces of both ends of the bidirectional adjusting screw rod, and the bending roller is rotationally connected to the outer surface of the sliding block.

[0012] Preferably, the top of the traction bracket is fixedly provided with a sliding rail, and the circuit board clamping table is slidingly connected to the outer surface of the sliding rail.

[0013] Preferably, the top of the circuit board clamping table is provided with a clamping cover through bolts, and the opposite side of the circuit board clamping table and the clamping cover is fixedly provided with anti-skid rubber sheets.

[0014] Preferably, the back of the traction bracket is fixedly provided with a guide rail, the outer surface of the guide rail is slidingly connected with a reset counterweight, the traction rope is fixedly arranged between the reset counterweight and the circuit board clamping table, and the traction bracket is provided with a fixed pulley at the top of the end for supporting the traction rope.

[0015] The utility model discloses a flexible circuit board S shape bending device, and it has the beneficial effects as follows: through the design of the bending piece, different radius bending pressure wheels are replaced in use, then the bidirectional adjusting screw rod is rotated, the two groups of sliding blocks move to the middle along the sliding groove, the two groups of bending pressure wheels move synchronously, the flexible circuit board is arranged between the two groups of bending pressure wheels, the servo motor drives the rotating support to rotate in use, the two groups of bending pressure wheels bend the flexible circuit board to S shape from both sides, the bending pressure wheel is used for uniform bending in the bending process, the friction and breakage of the clamping piece and the flexible circuit board are avoided, and different radian bending tests are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0017] Figure 1 It is the whole assembly state structural diagram of the utility model;

[0018] Figure 2 It is the whole bending operation state schematic view of the utility model.

[0019] Figure 3 It is the bending piece outer surface structure schematic view of the utility model.

[0020] Figure 4 It is the circuit board traction piece structure schematic view of the utility model.

[0021] In the drawing: 1, test carrier plate; 2, bending piece; 21, bending frame; 22, servo motor; 23, rotating support; 24, transmission chain; 25, sliding groove; 26, sliding block; 27, bidirectional adjusting screw; 28, bending roller; 29, bending pressure roller; 3, circuit board traction piece; 31, traction bracket; 32, sliding rail; 33, circuit board clamping table; 34, clamping cover; 35, antiskid rubber sheet; 36, guide rail; 37, reset counterweight; 38, traction rope; 39, fixed pulley. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model is clearly and completely described, obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] The flexible circuit board S-shaped bending device provided by the embodiments of the present application solves the problem that in the existing detection scheme, more damaged parts are caused by friction and extrusion at the folding place with the clamp when the circuit board is bent, the bending resistance of the flexible circuit board cannot be truly reflected, and the bending curvature cannot be adjusted according to the actual installation scene during testing.

[0024] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings in the specification and specific embodiments.

[0025] The embodiments of the utility model disclose a flexible circuit board S-shaped bending device.

[0026] According to the drawings Figures 1-4 As shown in the drawings, the utility model discloses a bending piece 2, and the two sides of the bending piece 2 are provided with a circuit board traction piece 3; the circuit board traction piece 3 is arranged to be perpendicular to the bending piece 2, and the circuit board traction piece 3 and the bottom of the bending piece 2 are fixedly installed with a test carrier plate 1.

[0027] The bending piece 2 includes a bending frame 21 and a rotating support 23 rotatably arranged in the bending frame 21, the middle part of the rotating support 23 is slidably provided with two groups of bending rollers 28, the outer surface of the bending roller 28 is fixedly installed with a bending pressure roller 29, and the two groups of bending rollers 28 are provided with a bidirectional adjusting screw 27;

[0028] The side of the bending frame 21 is internally fixedly provided with a servo motor 22, and a transmission chain 24 is installed between the servo motor 22 and a rotating support 23.

[0029] The outer surface of the rotating support 23 is provided with a sliding groove 25, a bending roller 28 is slidingly arranged in the sliding groove 25, and a bidirectional adjusting screw rod 27 is rotationally connected in the sliding groove 25.

[0030] The two ends of the sliding groove 25 are internally slidingly connected with sliding blocks 26, the two groups of sliding blocks 26 are threadedly connected to the outer surfaces of the two ends of the bidirectional adjusting screw rod 27, and the bending roller 28 is rotationally connected to the outer surface of the sliding block 26.

[0031] By replacing the bending pressure wheels 29 with different radii, then rotating the bidirectional adjusting screw rod 27, the two groups of sliding blocks 26 are moved along the sliding groove 25 to the middle, so that the two groups of bending pressure wheels 29 are synchronously moved, the flexible circuit board is arranged between the two groups of bending pressure wheels 29, in use, the servo motor 22 drives the rotating support 23 to rotate, so that the two groups of bending pressure wheels 29 bend the flexible circuit board from both sides in an S shape, the bending is uniformly bent by the bending pressure wheel 29, avoiding friction and damage of the clamping piece with the flexible circuit board, and facilitating different radian bending tests, and by changing the rotating direction of the servo motor 22, forward and reverse bending operations can be realized.

[0032] The circuit board traction piece 3 comprises a traction bracket 31 and a circuit board clamping table 33 slidingly arranged on the traction bracket 31, the top of the traction bracket 31 is fixedly provided with a sliding rail 32, the circuit board clamping table 33 is slidingly connected to the outer surface of the sliding rail 32, the top of the circuit board clamping table 33 is provided with a clamping cover 34 through bolts, the side opposite to the clamping cover 34 of the circuit board clamping table 33 is fixedly provided with anti-skid rubber sheets 35, the back of the traction bracket 31 is fixedly provided with a guide rail 36, the outer surface of the guide rail 36 is slidingly connected with a reset counterweight 37, the reset counterweight 37 and the circuit board clamping table 33 are fixedly provided with a traction rope 38, and the end top of the traction bracket 31 is provided with a fixed pulley 39 supporting the traction rope 38.

[0033] In the test, the two ends of the flexible circuit board are clamped and fixed between the two groups of circuit board clamping tables 33 and clamping covers 34, and then the reset counterweight 37 is used for traction and straightening, the middle of the flexible circuit board is twisted when bending, at this time, the two ends of the flexible circuit board drive the reset counterweight 37 to slide upward through the circuit board clamping table 33, when the reset counterweight 37 slides downward, the two groups of circuit board clamping tables 33 move to the opposite sides, so that the flexible circuit board is naturally flattened, thereby realizing multiple continuous bending tests without manual reset.

[0034] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A flexible wiring board S-bending apparatus comprising a bending member (2), characterized in that, Two sides of the bending piece (2) are provided with a circuit board traction piece (3); The bending piece (2) comprises a bending frame (21) and a rotating support (23) rotatably arranged in the bending frame (21), a middle portion of the rotating support (23) is slidably provided with two groups of bending rollers (28), outer surfaces of the bending rollers (28) are fixedly provided with bending pressing wheels (29), and a bidirectional adjusting screw rod (27) is arranged between the two groups of bending rollers (28); The circuit board traction piece (3) comprises a traction bracket (31) and a circuit board clamping table (33) slidably arranged on the traction bracket (31); The circuit board traction piece (3) and the bending piece (2) are arranged perpendicularly to each other, and a test carrier plate (1) is fixedly arranged on the bottom of the circuit board traction piece (3) and the bending piece (2). A sliding rail (32) is fixedly arranged on the top of the traction bracket (31), and the circuit board clamping table (33) is slidably connected to the outer surface of the sliding rail (32).

2. The flexible wiring board S-bending device according to claim 1, characterized by: A servo motor (22) is fixedly arranged inside one side of the bending frame (21), and a transmission chain (24) is arranged between the servo motor (22) and the rotating support (23).

3. The flexible wiring board S-bending device according to claim 2, characterized by: A sliding groove (25) is arranged on the outer surface of the rotating support (23), the bending roller (28) is slidably arranged in the sliding groove (25), and the bidirectional adjusting screw rod (27) is rotatably connected in the sliding groove (25).

4. The flexible wiring board S-bending device according to claim 3, characterized by: Sliding blocks (26) are slidably connected to the inner portions of both ends of the sliding groove (25), the two groups of sliding blocks (26) are threadedly connected to the outer surfaces of both ends of the bidirectional adjusting screw rod (27), and the bending roller (28) is rotatably connected to the outer surface of the sliding block (26).

5. The flexible wiring board S-bending apparatus according to claim 1, characterized by: A clamping cover (34) is bolted to the top of the circuit board clamping table (33), and antiskid rubber sheets (35) are fixedly arranged on the opposite side of the circuit board clamping table (33) and the clamping cover (34).

6. The flexible wiring board S-bending device according to claim 5, wherein: A guide rail (36) is fixedly arranged on the back of the traction bracket (31), a reset counterweight (37) is slidably connected to the outer surface of the guide rail (36), a traction rope (38) is fixedly arranged between the reset counterweight (37) and the circuit board clamping table (33), and a fixed pulley (39) supporting the traction rope (38) is arranged at the end top of the traction bracket (31).

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