FPC bending jig

Abstract

The utility model discloses an FPC bending jig, and relates to the technical field of bending devices.The FPC bending jig comprises a control table and a base installed at the top of the control table, a placing plate is fixedly installed at the top of the base through two vertical plates, a limiting mechanism is installed at the top of the placing plate, and the limiting mechanism is used for limiting one end and the top of an FPC soft plate; the top of the base is provided with two fixing blocks through a threaded moving mechanism, the threaded moving mechanism is used for enabling the two fixing blocks to be close to or away from each other, and the side portions, close to each other, of the two fixing blocks are fixedly provided with fixing round rods. According to the FPC flexible board bending device, one end and the top of an FPC flexible board can be limited through the limiting mechanism, the two fixing round rods are made to be close to each other through the thread moving mechanism, and therefore the other end of the FPC flexible board is limited, the FPC flexible board can be bent through the bending mechanism, and after the FPC flexible board reaches the moving position, a pressing shaft is externally connected with a heat source, and the FPC flexible board can be bent. And a required shape angle is completed by heating of the pressing shaft.

Description

Technical Field

[0001] This invention relates to the field of bending device technology, specifically to an FPC bending fixture. Background Technology

[0002] Flexible printed circuit boards (FPCs) are highly reliable and extremely flexible printed circuit boards made with polyimide or polyester film as the substrate. They are characterized by high wiring density, light weight, and thinness.

[0003] In the existing FPC flexible circuit board processing, the FPC flexible circuit board needs to be bent as required and then heat treated after bending. The existing equipment is difficult to further bend the bent FPC flexible circuit board. Therefore, we propose an FPC bending fixture to bend the FPC flexible circuit board according to the specified curvature and angle. Summary of the Invention

[0004] This invention provides an FPC bending fixture to solve the problem in the prior art that existing FPC flexible boards need to be bent as needed during processing, followed by heat treatment after bending, and existing devices are difficult to further bend the bent FPC flexible boards.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an FPC bending fixture, comprising a control console and a base mounted on top of the control console. A placement plate is fixedly mounted on the top of the base via two upright plates. A limiting mechanism is installed on the top of the placement plate, which limits one end and the top of the FPC flexible board. Two fixing blocks are mounted on the top of the base via a threaded moving mechanism, which moves the two fixing blocks closer to or further away from each other. Fixed round rods are fixedly mounted on the sides of the two fixing blocks that are close to each other, and the two fixed round rods limit the other end of the FPC flexible board. A bending mechanism is fixedly mounted on the top of the placement plate, which bends the FPC flexible board. The bending mechanism is installed in conjunction with the two fixed round rods.

[0006] As a preferred embodiment of the present invention, the bending mechanism includes a mounting plate fixedly installed on the top of the base. A rotary motor is fixedly installed on the side of the mounting plate away from the placement plate. A drive shaft is fixedly installed on the output shaft of the rotary motor. One end of the drive shaft away from the rotary motor passes through the side of the mounting plate and is fixedly installed with a drive gear. Rotary holes are opened on the two vertical sides of the placement plate. A rotating rod is rotatably installed in the rotating hole. Both ends of the rotating rod extend outside the rotating hole and are fixedly installed with pinions. One of the pinions meshes with the drive gear.

[0007] As a preferred embodiment of the present invention, the bending mechanism further includes two limiting rings fixedly installed on the top of the placement plate. Each of the two limiting rings has a limiting shaft rotatably installed inside it. The ends of the two limiting shafts that are far apart from each other extend to the outside of the two limiting rings and are fixedly sleeved with large gears. The two large gears mesh with the two small gears respectively. A bending rod is eccentrically fixedly installed on the side of the two large gears that are close to each other. The side of the two large gears that are close to each other is provided with an avoidance arc hole. The rotation center of the two avoidance arc holes is the same as the rotation center of the limiting shafts. The ends of the two fixed round rods that are close to each other pass through the two avoidance arc holes respectively.

[0008] As a preferred embodiment of the present invention, the limiting mechanism includes a vertical plate fixedly installed on the top of the placement plate, a telescopic cylinder fixedly installed on the side of the vertical plate, a movable plate fixedly installed at the output end of the telescopic cylinder, an L-shaped rod fixedly installed on the side of the movable plate away from the vertical plate, a pressure shaft fixedly installed at the top of the two L-shaped rods, the pressure shaft being positioned corresponding to the limiting shaft, and the FPC flexible board being located below the pressure shaft.

[0009] As a preferred embodiment of the present invention, a slide rail is fixedly installed on the side of the vertical plate near the pressure shaft, and a slider is slidably installed on the slide rail, with the side of the slider fixedly connected to the side of the moving plate.

[0010] As a preferred embodiment of the present invention, the limiting mechanism further includes a stop post fixedly installed on the top of the placement plate, the stop post being installed in conjunction with the FPC flexible board.

[0011] As a preferred embodiment of the present invention, the limiting mechanism further includes a connecting plate fixedly installed on the top of the placement plate, a rotating plate rotatably installed on the top of the connecting plate, and a pressing pad installed on the bottom of the rotating plate.

[0012] As a preferred embodiment of the present invention, the top of the rotating plate is provided with a fixing hole, the top of the placement plate is provided with a threaded groove, a bolt is provided above the rotating plate, and one end of the bolt passes through the fixing hole and is threaded into the threaded groove.

[0013] As a preferred embodiment of the present invention, the threaded moving mechanism includes a limiting plate fixedly installed on the top of the vertical plate. A servo motor is fixedly installed on the side of the limiting plate. The output shaft of the servo motor passes through the side of the limiting plate and is fixedly installed with a positive and negative lead screw. A lead screw nut is fitted on the positive and negative threads of the positive and negative lead screws. A moving block is fixedly installed on the outer side of each of the two lead screw nuts. The bottom of each of the two fixed blocks is fixedly connected to the top of the two moving blocks respectively.

[0014] As a preferred embodiment of the present invention, the threaded moving mechanism further includes two guide rods fixedly installed on the side of the limiting plate, and two guide holes are opened on the side of each of the two moving blocks, with one end of each of the two guide rods passing through the two corresponding guide holes.

[0015] Compared with the prior art, the present invention provides an FPC bending fixture, which has the following beneficial effects:

[0016] In this invention, a limiting mechanism can limit one end and the top of the FPC flexible board, and a threaded moving mechanism can bring two fixed round rods closer to each other, thereby limiting the other end of the FPC flexible board. A bending mechanism can be used to bend the FPC flexible board. After reaching the moving position, an external heat source is connected to the pressure shaft, and the pressure shaft heats the board to achieve the required shape and angle. Attached Figure Description

[0017] Figure 1 This is a first-view perspective perspective view of an FPC bending fixture according to the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a second-view perspective perspective view of an FPC bending fixture according to the present invention;

[0020] Figure 4 for Figure 3 Enlarged view at point B in the middle;

[0021] Figure 5 This is a perspective view of a portion of the limiting mechanism in an FPC bending fixture according to the present invention;

[0022] Figure 6 This is a perspective view of an FPC bending and thread moving mechanism according to the present invention.

[0023] Figure 7 This is a 3D view of an FPC flexible board to be bent and thermoformed.

[0024] In the diagram: 1. Base; 2. Vertical plate; 3. Placement plate; 4. Mounting plate; 5. Rotary motor; 6. Drive shaft; 7. Drive gear; 8. Rotating rod; 9. Pinion; 10. Limiting ring; 11. Limiting shaft; 12. Large gear; 13. Bending rod; 14. Connecting plate; 15. Rotating plate; 16. Bolt; 17. Stop post; 18. Limiting plate; 19. Servo motor; 20. Positive and negative lead screws; 21. Lead screw nut; 22. Moving block; 23. Fixing block; 24. Fixing round rod; 25. FPC flexible board; 26. Avoidance arc hole; 27. Vertical plate; 28. Telescopic cylinder; 29. ​​Moving plate; 30. L-shaped rod; 31. Pressure shaft; 32. Slide rail; 33. Slider; 34. Guide rod. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention necessarily exceeds the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but still fall within the protection scope of this application.

[0026] Figures 1-7 This is the preferred embodiment of the present invention, which is described below in conjunction with the accompanying drawings. Figures 1-7 The present invention will be further described below.

[0027] This invention discloses an FPC bending fixture, including a control console and a base 1 mounted on top of the control console. A placement plate 3 is fixedly mounted on the top of the base 1 via two upright plates 2. A limiting mechanism is installed on the top of the placement plate 3 to limit one end and the top of the FPC flexible board 25. Two fixing blocks 23 are mounted on the top of the base 1 via a threaded moving mechanism. The threaded moving mechanism is used to move the two fixing blocks 23 closer to each other or further apart. Fixing rods 24 are fixedly mounted on the sides of the two fixing blocks 23 that are close to each other. The two fixing rods 24 are used to limit the other end of the FPC flexible board 25. A bending mechanism is fixedly mounted on the top of the placement plate 3. The bending mechanism is used to bend the FPC flexible board 25 and is installed in cooperation with the two fixing rods 24.

[0028] With the above structure: the limiting mechanism can limit one end and the top of the FPC flexible board 25; the threaded moving mechanism can bring the two fixed round rods 24 closer to each other, thereby limiting the other end of the FPC flexible board 25; and the bending mechanism can be used to bend the FPC flexible board 25.

[0029] The bending mechanism includes a mounting plate 4 fixedly installed on the top of the base 1. A rotary motor 5 is fixedly installed on the side of the mounting plate 4 away from the placement plate 3. A drive shaft 6 is fixedly installed on the output shaft of the rotary motor 5. One end of the drive shaft 6 away from the rotary motor 5 passes through the side of the mounting plate 4 and is fixedly installed with a drive gear 7. Two vertical sides of the placement plate 3 have rotating holes. A rotating rod 8 is rotatably installed in the rotating holes. Both ends of the rotating rod 8 extend outside the rotating holes and are fixedly installed with pinions 9. One of the pinions 9 meshes with the drive gear 7. The bending mechanism also includes two limiters fixedly installed on the top of the placement plate 3. Within each of the two limiting rings 10, a limiting shaft 11 is rotatably installed. The ends of the two limiting shafts 11 that are far apart from each other extend to the outside of the two limiting rings 10 and are fixedly sleeved with large gears 12. The two large gears 12 mesh with two small gears 9 respectively. A bent rod 13 is eccentrically fixedly installed on the side of the two large gears 12 that are close to each other. The side of the two large gears 12 that are close to each other is provided with a clearance arc hole 26. The rotation center of the two clearance arc holes 26 is the same as the rotation center of the limiting shafts 11. The ends of the two fixed round rods 24 that are close to each other pass through the two clearance arc holes 26 respectively. During bending, the rotary motor 5 is started. The output shaft of the rotary motor 5 rotates, which drives the drive shaft 6 and the drive gear 7 to rotate. The drive gear 7 rotates, which drives the pinion 9 to rotate. The pinion 9 drives another pinion 9 to rotate through the rotating rod 8. The rotation of the two pinions 9 drives the rotation of the two large gears 12. The rotation of the two large gears 12 drives the bending rod 13 to rotate, thereby bending the bending edge of the FPC flexible board 25 along the circumferential side of the pressure shaft 31.

[0030] like Figure 2 and Figure 5 As shown, the limiting mechanism includes a vertical plate 27 fixedly installed on the top of the placement plate 3. A telescopic cylinder 28 is fixedly installed on the side of the vertical plate 27. A movable plate 29 is fixedly installed at the output end of the telescopic cylinder 28. An L-shaped rod 30 is fixedly installed on the side of the movable plate 29 away from the vertical plate 27. A pressure shaft 31 is fixedly installed at the top of the two L-shaped rods 30. The pressure shaft 31 corresponds to the position of the limiting shaft 11. The FPC flexible board 25 is located below the pressure shaft 31. A slide rail 32 is fixedly installed on the side of the vertical plate 27 near the pressure shaft 31. A slider 33 is slidably installed on the slide rail 32. The side of the slider 33 is fixedly connected to the side of the movable plate 29. When the telescopic cylinder 28 is activated, its output end moves downward, thereby causing the movable plate 29 to move downward. The movement of the movable plate 29 drives the two L-shaped rods 30 to move downward. The downward movement of the two L-shaped rods 30 causes the pressure shaft 31 to press against the top of the bent part of the FPC flexible board 25.

[0031] like Figure 2As shown, the limiting mechanism also includes a stop post 17 fixedly installed on the top of the placement plate 3, and the stop post 17 is installed in conjunction with the FPC flexible board 25. When the slot on the FPC flexible board 25 is aligned with the stop post 17, one end of the stop post 17 contacts the inner wall of the slot, thereby limiting one end of the FPC flexible board 25.

[0032] like Figure 2 As shown, the limiting mechanism also includes a connecting plate 14 fixedly installed on the top of the placement plate 3. A rotating plate 15 is rotatably installed on the top of the connecting plate 14, and a clamping pad is installed on the bottom of the rotating plate 15. A fixing hole is opened on the top of the rotating plate 15, and a threaded groove is opened on the top of the placement plate 3. A bolt 16 is provided above the rotating plate 15, and one end of the bolt 16 passes through the fixing hole and is threaded into the threaded groove. Rotating the rotating plate 15 causes the clamping pad to press against the top of the FPC flexible board 25, and the bolt 16 can be used to limit the top of the FPC flexible board 25.

[0033] like Figure 1 and Figure 6 The threaded movement mechanism includes a limiting plate 18 fixedly installed on the top of the vertical plate 2. A servo motor 19 is fixedly installed on the side of the limiting plate 18. The output shaft of the servo motor 19 passes through the side of the limiting plate 18 and is fixedly installed with a positive and negative lead screw 20. Lead screw nuts 21 are fitted on the positive and negative threads of the positive and negative lead screw 20. Moving blocks 22 are fixedly installed on the outer sides of the two lead screw nuts 21. The bottoms of the two fixed blocks 23 are fixedly connected to the tops of the two moving blocks 22 respectively. The servo motor 19 is started to rotate its output shaft, which in turn causes the lead screw 20 to rotate. The rotation of the positive and negative threads on the lead screw 20 causes the two lead screw nuts 21 to move closer to each other, which in turn causes the two moving blocks 22 to move closer to each other and the two fixed blocks 23 to move closer to each other. This causes the two fixed round rods 24 to move closer to each other and insert below the bent edge of the FPC flexible board 25. The two fixed round rods 24 contact the bent inner wall of the FPC flexible board 25, thereby limiting the other end of the FPC flexible board 25 and preventing the FPC flexible board 25 from moving back and forth.

[0034] like Figure 6 As shown, the threaded moving mechanism also includes two guide rods 34 fixedly installed on the side of the limiting plate 18. Each of the two moving blocks 22 has two guide holes on its side, and one end of each guide rod 34 passes through one of the corresponding guide holes. The guide holes and guide rods 34 limit the movement of the moving block 22, allowing it to slide only along the direction of the guide rods 34.

[0035] How to use:

[0036] When in use, the FPC flexible board 25, as Figure 7As shown, the top of the FPC flexible board 25 has a slot and a bending edge. When placing it, the rotary motor 5 is started to rotate the drive shaft 6 and the drive gear 7, which in turn rotates the two small gears 9 and the two large gears 12, thereby causing the bending rod 13 to rotate and open. Then the FPC flexible board 25 is placed in, so that the bending edge of the FPC flexible board 25 is located on the side of the bending rod 13 away from the rotating plate 15. Then the rotary motor 5 is started to rotate the drive shaft 6 and the drive gear 7 in the opposite direction, thereby causing the bending rod 13 to return to its original state. At this time, the FPC flexible board 25 is moved so that the bending rod 13 enters below the bending edge of the FPC flexible board 25. Then the slot on the FPC flexible board 25 is aligned with the stop post 17, and one end of the stop post 17 contacts the inner wall of the slot, thereby limiting one end of the FPC flexible board 25.

[0037] Then rotate the rotating plate 15 so that the clamping pad presses the top of the FPC flexible board 25. The limit can be set by the bolt 16. Finally, start the telescopic cylinder 28 so that its output end moves downward, thereby causing the moving plate 29 to move downward. The movement of the moving plate 29 drives the two L-shaped rods 30 to move downward. The movement of the two L-shaped rods 30 drives the pressure shaft 31 to press against the top of the FPC flexible board 25 at the bend.

[0038] The servo motor 19 is started to rotate its output shaft, which in turn causes the positive and negative lead screws 20 to rotate. The rotation of the positive and negative threads on the positive and negative lead screws 20 causes the two lead screw nuts 21 to move closer to each other, which in turn causes the two moving blocks 22 to move closer to each other and the two fixed blocks 23 to move closer to each other. This causes the two fixed round rods 24 to move closer to each other and insert below the bent edge of the FPC flexible board 25. The two fixed round rods 24 contact the bent inner wall of the FPC flexible board 25, thereby limiting the other end of the FPC flexible board 25 and preventing the FPC flexible board 25 from moving back and forth.

[0039] During bending, the rotary motor 5 is started. The output shaft of the rotary motor 5 rotates, driving the drive shaft 6 and the drive gear 7 to rotate. The drive gear 7 rotates, driving the pinion 9 to rotate. The pinion 9 drives another pinion 9 to rotate through the rotating rod 8. The rotation of the two pinions 9 drives the rotation of the two large gears 12. The rotation of the two large gears 12 drives the bending rod 13 to rotate, thereby bending the bending edge of the FPC flexible board 25 along the circumferential side of the pressure shaft 31. After reaching the movement position, the pressure shaft 31 is connected to an external heat source, and the pressure shaft 31 heats the board to complete the required shape and angle.

[0040] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An FPC bending jig, characterized by: The utility model provides a kind of FPC soft board bending mechanism, including console and the base (1) installed on the top of the console, the top of the base (1) is fixedly installed with placing plate (3) by two vertical plate (2), the top of the placing plate (3) is installed with limiting mechanism, the limiting mechanism is used to limit one end and top of FPC soft board (25), the top of the base (1) is installed with two fixed blocks (23) by screw moving mechanism, the screw moving mechanism is used to two the fixed block (23) is close to each other or away from each other, two the fixed block (23) is fixedly installed with fixed round bar (24) on the side of close to each other, two the fixed round bar (24) is used to limit the other end of the FPC soft board (25), the top of the placing plate (3) is fixedly installed with bending mechanism, the bending mechanism is used to bend the FPC soft board (25), the bending mechanism is installed with two the fixed round bar (24) cooperation.

2. The FPC bending jig according to claim 1, characterized in that: The bending mechanism includes a mounting plate (4) fixedly installed on the top of the base (1), a rotary motor (5) fixedly installed on the side of the mounting plate (4) away from the placing plate (3), an output shaft of the rotary motor (5) fixedly installed with a driving shaft (6), one end of the driving shaft (6) away from the rotary motor (5) penetrates the side of the mounting plate (4) and is fixedly installed with a driving gear (7), two vertical sides of the placing plate (3) are provided with a rotating hole, a rotating rod (8) is rotatably installed in the rotating hole, both ends of the rotating rod (8) extend out of the rotating hole and are fixedly installed with a pinion (9), and one of the pinions (9) is engaged with the driving gear (7).

3. The FPC bending jig according to claim 2, characterized in that: The bending mechanism further includes two limiting rings (10) fixedly installed on the top of the placing plate (3), a limiting shaft (11) is rotatably installed in each of the two limiting rings (10), one end of each of the two limiting shafts (11) away from each other extends out of the two limiting rings (10) and is fixedly sleeved with a large gear (12), the two large gears (12) are engaged with the two pinions (9) respectively, a bending rod (13) is eccentrically fixedly installed on the side of the two large gears (12) close to each other, both sides of the two large gears (12) close to each other are provided with an avoiding arc-shaped hole (26), the rotating centers of the two avoiding arc-shaped holes (26) are the same as the rotating centers of the limiting shafts (11), and one end of each of the two fixed round bars (24) penetrates the two avoiding arc-shaped holes (26) respectively.

4. The FPC bending jig according to claim 3, characterized in that: The limiting mechanism includes a vertical plate (27) fixedly installed on the top of the placing plate (3), a telescopic cylinder (28) fixedly installed on the side of the vertical plate (27), an output end of the telescopic cylinder (28) fixedly installed with a moving plate (29), the side of the moving plate (29) away from the vertical plate (27) is fixedly installed with an L-shaped rod (30), the top ends of the two L-shaped rods (30) are fixedly installed with a pressing shaft (31), the pressing shaft (31) corresponds to the position of the limiting shaft (11), and the FPC soft board (25) is located below the pressing shaft (31).

5. The FPC bending jig according to claim 4, characterized in that: The vertical plate (27) is fixedly installed with a slide rail (32) near the side of the pressing shaft (31), the slide rail (32) is slidably installed with a sliding block (33), and the side of the sliding block (33) is fixedly connected with the side of the moving plate (29).

6. The FPC bending jig according to claim 1, characterized in that: The limiting mechanism further comprises a blocking column (17) fixedly installed on the top of the placing plate (3), and the blocking column (17) is installed in cooperation with the FPC soft plate (25).

7. The FPC bending jig according to claim 1, characterized in that: The limiting mechanism further comprises a connecting plate (14) fixedly installed on the top of the placing plate (3), and the top of the connecting plate (14) is rotatably installed with a rotating plate (15), and the bottom of the rotating plate (15) is installed with a compression pad.

8. The FPC bending jig according to claim 7, characterized in that: The top of the rotating plate (15) is provided with a fixed hole, the top of the placing plate (3) is provided with a threaded groove, the upper side of the rotating plate (15) is provided with a bolt (16), and one end of the bolt (16) penetrates through the fixed hole and is screwedly installed in the threaded groove.

9. The FPC bending jig according to claim 1, characterized in that: The threaded moving mechanism comprises a limiting plate (18) fixedly installed on the top of the vertical plate (2), a servo motor (19) fixedly installed on the side of the limiting plate (18), an output shaft of the servo motor (19) penetrating through the side of the limiting plate (18) and fixedly installed with a forward and reverse lead screw (20), a forward tooth and a reverse tooth on the forward and reverse lead screw (20) being installed in cooperation with a lead screw nut (21), and the outer sides of the two lead screw nuts (21) being fixedly installed with moving blocks (22), and the bottoms of the two fixed blocks (23) being fixedly connected with the tops of the two moving blocks (22), respectively.

10. The FPC bending jig according to claim 9, characterized in that: The threaded moving mechanism further comprises two guide rods (34) fixedly installed on the side of the limiting plate (18), two guide holes being formed in the sides of the two moving blocks (22), and one end of each of the two guide rods (34) penetrating through two corresponding guide holes.

Images