FPC bending jig and bending process

Abstract

The application is suitable for the technical field of FPC bending, and provides an FPC bending jig, one side of the support is connected with a connecting plate above an upper die, the upper surface of the upper die is symmetrically provided with a fixing sleeve, and the upper surface of the connecting plate is provided with an air cylinder; the upper surface of the lower die is provided with a die plate, the upper surface of the die plate is provided with a die cavity, the inside of the die cavity is symmetrically provided with a placing plate, and the upper surface of the placing plate is symmetrically provided with an air suction hole; the lower surface of the upper die is provided with a fixing groove, the inside of the fixing groove is installed with an installation plate through screws, the lower surface of the installation plate is slidably installed with a pressing plate mechanism, the pressing plate mechanism is composed of an upper pressing plate and a lower pressing plate, and the lower surface of the upper pressing plate is provided with an adjusting plate. The application can quickly adjust the distance between multiple placing plates, so that different positions of the FPC can be bent, the FPC to be bent can be adsorbed and limited, and the bending accuracy is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of FPC bending, in particular to an FPC bending jig and a bending process. BACKGROUND

[0002] FPC, which stands for flexible printed circuit board, is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film. It has the characteristics of high wiring density, light weight, thin thickness, and good bending performance.

[0003] In actual application, FPC often needs to be bent. During processing, the FPC is placed on the bending jig so that the upper and lower molds are closed, thus achieving the bending of the FPC.

[0004] A Chinese patent discloses an FPC bending jig (authorized publication number CN215121350U). The patent has a novel structure and a clever design. When using it, the area of the FPC that needs to be bent is inserted into the gap between the upper and lower bending mold sets. The upper driving module pushes the upper bending mold set downward, and the lower driving module pushes the lower bending mold set upward. The bending protrusions are inserted into the bending grooves to bend the FPC.

[0005] However, there are still some deficiencies in this patent and existing technology. First, the FPC cannot be bent at different positions, and the bending radius is fixed. Therefore, a FPC bending jig and a bending process are provided by the skilled in the art to solve the problems mentioned in the background. SUMMARY

[0006] The purpose of the present disclosure is to provide a FPC bending jig and a bending process to solve the problems existing in the prior art.

[0007] To achieve this purpose, the present disclosure adopts the following technical solution: a FPC bending jig, comprising an upper mold, a lower mold arranged below the upper mold, and a bracket arranged on both sides of the upper mold and the lower mold, one side of the bracket is connected with a connecting plate above the upper mold, the upper surface of the upper mold is symmetrically provided with a fixing sleeve, the upper surface of the connecting plate is provided with a gas cylinder, the telescopic end of the gas cylinder is embedded in the inside of the fixing sleeve and connected by a screw;

[0008] The upper surface of the lower mold is provided with a mold plate, the upper surface of the mold plate is provided with a mold cavity, the inside of the mold cavity is symmetrically provided with a placing plate, and the upper surface of the placing plate is symmetrically provided with an air suction hole;

[0009] The lower surface of the upper die is provided with a fixing groove, a mounting plate is mounted in the fixing groove through screws, a pressing plate mechanism is slidingly mounted on the lower surface of the mounting plate, and the pressing plate mechanism is composed of an upper pressing plate and a lower pressing plate.

[0010] Preferably, the inside of the placing plate is provided with an air pump, the air outlet end of the air pump is connected with a connecting pipe, and the connecting pipe is communicated with the air suction hole.

[0011] Preferably, the inner side of the template is symmetrically provided with a groove, a guide column is mounted in the groove, a moving ring is arranged on the outer side of the guide column, a connecting rod is arranged on the outer side of the moving ring, and one end of the connecting rod is connected with the placing plate.

[0012] Preferably, a rotating rod is arranged through the outer side of the connecting rod, and a limiting plate is arranged at the bottom end of the rotating rod.

[0013] Preferably, the lower surface of the lower pressing plate is symmetrically provided with a mounting rod, a sliding plate is connected to the lower end of the mounting rod, and a sliding groove is formed in the upper surface of the mounting plate and slidingly connected with the sliding plate.

[0014] Preferably, the mounting rod and the sliding plate are arranged in a "T" shape, and screws are symmetrically arranged on the upper surface of the sliding plate.

[0015] Preferably, an adjusting groove is formed in the upper surface of the lower pressing plate, the lower surface of the adjusting plate is slidingly mounted in the adjusting groove, and screws are symmetrically arranged on the two sides of the lower pressing plate.

[0016] Preferably, the rotating rod is arranged perpendicularly to the connecting rod, and anti-skid stripes are arranged on the bottom of the limiting plate.

[0017] An FPC bending jig and a bending process, comprising the following steps:

[0018] S1: first move the placing plate in the mold cavity, and then rotate the rotating rod and move the limiting plate downward to fix the moved placing plate;

[0019] S2: move the lower pressing plate in the fixing sleeve, that is, move the sliding plate connected with the mounting rod in the sliding groove, so that the adjusted lower pressing plate corresponds to the gap of the plurality of placing plates adjusted in S;

[0020] S3: adjust the height of the upper pressing plate and the lower pressing plate, fix the adjusting plate through the screws, place the FPC to be bent on the placing plate after adjustment, and fix the FPC by the air pump in the placing plate;

[0021] S4: by starting the cylinder, so that the upper die moves down to make the upper die and the lower die to close the mold, so as to realize the bending treatment of FPC.

[0022] The beneficial effects of the present disclosure are:

[0023] 1、The present application moves the placement plate inside the mold cavity, that is, the moving ring connected by the connecting rod of the front surface and the rear surface of the placement plate slides outside the guide column, and after sliding, the rotating rod is rotated, which makes the limiting plate move downward, so that the placement plate can be fixed, and after fixing, the FPC to be bent can be placed on the placement plate, and the FPC can be adsorbed on the placement plate by using the air pump inside the placement plate, so as to fix the FPC, avoid moving and affect the bending work of the FPC, and the distance between multiple placement plates can be quickly adjusted, so that the different positions of the FPC can be bent, and the FPC to be bent can be adsorbed and limited, thereby improving the bending accuracy.

[0024] 2、The present application adjusts the sliding of the sliding block in the sliding groove, so that the pressing plate mechanism moves inside the fixing groove, so as to satisfy the gap between the pressing plate mechanism and multiple placement plates, so that when the upper die and the lower die are closed, the pressing plate mechanism enters the gap between the multiple placement plates, so as to realize the bending work of the FPC, and the adjusting plate moves in the adjusting groove while being fixed by the screw, so as to adjust the height of multiple pressing plate mechanisms, so as to realize different degrees of bending work of the FPC. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structure diagram of an FPC bending jig;

[0026] Figure 2 It is a structure diagram of a placement plate in an FPC bending jig;

[0027] Figure 3 It is Figure 2 the enlarged view of part A in the figure;

[0028] Figure 4 It is a structure diagram of an upper die in an FPC bending jig;

[0029] Figure 5 It is Figure 4 the enlarged view of part C in the figure;

[0030] Figure 6 It is Figure 4 the enlarged view of part B in the figure.

[0031] In the figure: 1, lower mold; 2, upper mold; 21, fixed sleeve; 22, fixed groove; 3, support; 31, air cylinder; 32, connecting plate; 4, mold plate; 41, mold cavity; 5, placement plate; 51, air suction hole; 6, pressing plate mechanism; 61, mounting plate; 62, mounting rod; 63, sliding plate; 64, sliding groove; 65, upper pressing plate; 66, adjusting plate; 67, adjusting groove; 68, lower pressing plate; 7, guide column; 71, groove; 72, moving ring; 73, rotating rod; 74, connecting rod; 75, limiting plate. DETAILED DESCRIPTION

[0032] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0033] The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application.

[0034] An FPC bending jig comprises an upper mold 2, a lower mold 3 arranged below the upper mold 2, and supports 3 arranged on both sides of the upper mold 2 and the lower mold 3. One side of each support 3 is connected with a connecting plate 32 above the upper mold 2. The upper surface of the upper mold 2 is symmetrically provided with a fixed sleeve 21. The upper surface of the connecting plate 32 is provided with an air cylinder 31. The telescopic end of the air cylinder 31 is embedded in the inside of the fixed sleeve 21 and connected by a screw.

[0035] The upper surface of the lower mold 1 is provided with a mold plate 4. The upper surface of the mold plate 4 is provided with a mold cavity 41. The inside of the mold cavity 41 is symmetrically provided with a placement plate 5. The upper surface of the placement plate 5 is symmetrically provided with an air suction hole 51.

[0036] The lower surface of the upper mold 2 is provided with a fixed groove 22. The inside of the fixed groove 22 is provided with a mounting plate 61 by a screw. The lower surface of the mounting plate 61 is slidingly provided with a pressing plate mechanism 6. The pressing plate mechanism 6 is composed of an upper pressing plate 65 and a lower pressing plate 68. The lower surface of the upper pressing plate 65 is provided with an adjusting plate 66.

[0037] In Figure 2 , the inside of the placement plate 5 is provided with an air pump. The air outlet end of the air pump is connected with a connecting pipe. The connecting pipe is in communication with the air suction hole 51. The position of the air suction hole 51 can be made to be in a vacuum state by the working of the air pump. When the FPC to be bent is placed on the placement plate 5, it will be adsorbed on the placement plate 5, so as to be fixed.

[0038] In Figure 2 and Figure 3In the middle: the inner side of the template 4 is symmetrically provided with a groove 71, the inside of the groove 71 is provided with a guide column 7, the outside of the guide column 7 is provided with a moving ring 72, the outside of the moving ring 72 is provided with a connecting rod 74, one end of the connecting rod 74 is connected with the placing plate 5, the setting utilizes the sliding of the moving ring 72 outside the guide column 7, so that the position of the placing plate 5 can be adjusted to satisfy the adjustment of the distance between the multiple placing plates 5.

[0039] In Figure 3 In the middle: the outside of the connecting rod 74 is provided with a rotating rod 73, the bottom end of the rotating rod 73 is provided with a limiting plate 75, the rotating rod 73 is vertically arranged with the connecting rod 74, the bottom of the limiting plate 75 is provided with anti-skid stripes, the setting utilizes the rotation of the rotating rod 73, so that the limiting plate 75 can be moved downward, and then the moved placing plate 5 is fixed.

[0040] In Figure 4 And Figure 5 In the middle: the lower surface of the pressing plate 68 is symmetrically provided with a mounting rod 62, the lower end of the mounting rod 62 is connected with a sliding plate 63, the upper surface of the mounting plate 61 is provided with a sliding groove 64 which slides with the sliding plate 63, the mounting rod 62 and the sliding plate 63 are arranged in "T" shape, the upper surface of the sliding plate 63 is symmetrically provided with a screw, the setting utilizes the sliding of the sliding plate 63 in the sliding groove 64, so that the position of the pressing plate mechanism 6 can be adjusted to adapt to the gap between the placing plates 5.

[0041] In Figure 6 In the middle: the upper surface of the pressing plate 68 is provided with an adjusting groove 67, the lower surface of the adjusting plate 66 is slidably installed in the inside of the adjusting groove 67, the two sides of the pressing plate 68 are symmetrically provided with screws, the setting utilizes the sliding of the adjusting plate 66 in the inside of the adjusting groove 67 and is fixed by the screws, so that the height of the pressing plate mechanism 6 can be adjusted, so that different radii can be bent when the FPC is bent.

[0042] An FPC bending jig and a bending process, comprising the following steps:

[0043] S1: first move the placing plate 5 in the inside of the mold cavity 41, and after moving, rotate the rotating rod 73 and make the limiting plate 75 move downward, so that the moved placing plate 5 can be fixed;

[0044] S2: move the pressing plate 68 in the inside of the fixing sleeve 21, that is, the sliding plate 63 connected with the mounting rod 62 moves in the inside of the sliding groove 64, so that the gap between the adjusted pressing plate 68 and the multiple placing plates 5 adjusted in S1 corresponds to each other;

[0045] S3: by adjusting the height of the upper pressing plate 65 and the lower pressing plate 68 and by the screw, the adjusting plate 66 can be fixed, and after the adjustment, the FPC to be bent is placed on the placing plate 5, and the FPC can be adsorbed and fixed by the air pump working in the placing plate 5;

[0046] S4: by starting the air cylinder 31, the upper die 2 is moved downward, and the upper die 2 and the lower die 1 are combined, so that the FPC is bent.

[0047] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative labor fall within the scope of protection of the present application.

[0048] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0049] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0050] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An FPC bending fixture, characterized in that, It includes an upper mold (2), a lower mold (1) disposed below the upper mold (2), and a bracket (3) disposed on both sides of the upper mold (2) and the lower mold (1). A connecting plate (32) is connected to one side of the bracket (3) above the upper mold (2). A fixing sleeve (21) is symmetrically disposed on the upper surface of the upper mold (2). A cylinder (31) is disposed on the upper surface of the connecting plate (32). The telescopic end of the cylinder (31) is embedded in the interior of the fixing sleeve (21) and connected by screws. The upper surface of the lower mold (1) is provided with a template (4), and the upper surface of the template (4) is provided with a mold cavity (41). The interior of the mold cavity (41) is symmetrically provided with a placement plate (5), and the upper surface of the placement plate (5) is symmetrically provided with air suction holes (51). The lower surface of the upper mold (2) is provided with a fixing groove (22). The fixing groove (22) is fitted with a mounting plate (61) by screws. The lower surface of the mounting plate (61) is slidably fitted with a pressure plate mechanism (6). The pressure plate mechanism (6) is composed of an upper pressure plate (65) and a lower pressure plate (68). The lower surface of the upper pressure plate (65) is provided with an adjustment plate (66). The template (4) has symmetrical grooves (71) on its inner side. A guide post (7) is installed inside the groove (71). A moving ring (72) is provided outside the guide post (7). A connecting rod (74) is provided outside the moving ring (72). One end of the connecting rod (74) is connected to the placement plate (5). A rotating rod (73) is provided through the connecting rod (74). A limit plate (75) is provided at the bottom end of the rotating rod (73). The lower surface of the pressure plate (68) is symmetrically provided with mounting rods (62), the lower end of the mounting rods (62) is connected to a sliding plate (63), and the upper surface of the mounting plate (61) is provided with a sliding groove (64) that slides against the sliding plate (63).

2. The FPC bending fixture as described in claim 1, characterized in that, An air pump is installed inside the placement plate (5), and the air outlet of the air pump is connected to a connecting pipe, which is connected to the air intake hole (51).

3. The FPC bending fixture as described in claim 1, characterized in that, The mounting rod (62) and the sliding plate (63) are arranged in a "T" shape, and screws are symmetrically arranged on the upper surface of the sliding plate (63).

4. The FPC bending fixture as described in claim 1, characterized in that, The upper surface of the lower pressure plate (68) is provided with an adjustment groove (67), and the lower surface of the adjustment plate (66) is slidably installed inside the adjustment groove (67). Screws are symmetrically arranged on both sides of the lower pressure plate (68).

5. The FPC bending fixture as described in claim 1, characterized in that, The rotating rod (73) is perpendicular to the connecting rod (74), and the bottom of the limiting plate (75) is provided with anti-slip stripes.

6. The bending process of an FPC bending fixture according to any one of claims 1-5, characterized in that, Includes the following steps: S1: First, move the placement plate (5) inside the mold cavity (41), and after moving, rotate the rotating rod (73) and make the limiting plate (75) move downward, and fix the moved placement plate (5); S2: Move the lower pressure plate (68) inside the fixed sleeve (21), that is, move the slide plate (63) connected by the mounting rod (62) inside the slide groove (64) so ​​that the gap between the adjusted lower pressure plate (68) and the multiple placement plates (5) adjusted in S1 corresponds to each other. S3: Adjust the height of the upper pressure plate (65) and the lower pressure plate (68) and fix the adjustment plate (66) with screws. After adjustment, place the FPC to be bent on the placement plate (5) and fix the FPC by the operation of the air pump in the placement plate (5). S4: By activating the cylinder (31), the upper mold (2) moves downward, thereby causing the upper mold (2) and the lower mold (1) to close, thus realizing the bending process of the FPC.

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