A flexible circuit board dynamic turnover bending mechanism and turnover bending device

Abstract

The utility model is suitable for the field of automation technology, provides a kind of flexible circuit board dynamic turnover bending mechanism and turnover bending device.The flexible circuit board dynamic turnover bending mechanism includes: bottom plate;Fixed seat, fixedly arranged on the bottom plate;Connecting block, one end is rotatably connected with the fixed seat, and the other end is rotatably connected with first pressing plate;Material board, for placing flexible circuit board;First pressing plate, fixedly connected with the material board, for pressing flexible circuit board on the material board;Second pressing plate, fixedly connected with the bottom plate, for pressing flexible circuit board on the bottom plate.Due to the material board and first pressing plate fixed, when power source promotes material board rotation, material board, first pressing plate rotates around fixed seat, and flexible circuit board is bent, and the angle of bending can be controlled.The flexibility of the mechanism of the embodiment is strong, does not need additional mould, and the cost is relatively lower, and the life of flexible circuit board can be tested and verified.

Description

Technical Field

[0001] This utility model belongs to the field of automation technology, and in particular relates to a dynamic flipping and bending mechanism for flexible circuit boards. Background Technology

[0002] Flexible circuit boards (PCBs), also known as flexographic circuit boards or flexible boards, are printed circuits made by etching circuits onto copper foil using polyester film or polyimide as the substrate. They possess high reliability and excellent flexibility. These PCBs can be bent and folded freely, are lightweight, small in size, have good heat dissipation, and are easy to install, breaking through the traditional concept of interconnect technology. Currently, flexible circuit boards are widely used in aerospace, military, mobile communications, laptops, computer peripherals, digital cameras, and other fields.

[0003] Bending tests on flexible circuit boards are crucial for evaluating their reliability in dynamic bending applications, but numerous challenges and problems exist in actual testing. The flexural endurance of flexible circuit boards is typically tested by manual folding and counting. However, manual folding is inefficient, prone to crease deviations, and the angle of each bend is not consistent, leading to biased test results and making it impossible to study the relationship between the number of folds and the lifespan of the flexible circuit board.

[0004] Therefore, a flexible circuit board bending mechanism is needed to test and verify the service life of flexible circuit boards. Summary of the Invention

[0005] The purpose of this utility model embodiment is to provide a dynamic flipping and bending mechanism for flexible circuit boards, which aims to simulate the scenario of flexible circuit boards being repeatedly folded or bent in half at 0-90°, in order to test and verify the lifespan of flexible circuit boards.

[0006] This utility model embodiment is implemented as follows: a flexible circuit board dynamic flipping and bending mechanism, the flexible circuit board dynamic flipping and bending mechanism comprising:

[0007] Base plate;

[0008] The mounting base is fixedly mounted on the base plate;

[0009] The connecting block is rotatably connected at one end to the fixed base and at the other end to the first pressure plate;

[0010] A support plate, used to hold flexible circuit boards;

[0011] The first pressing plate is fixedly connected to the supporting plate and is used to press the flexible circuit board onto the supporting plate.

[0012] The second pressure plate is fixedly connected to the base plate and is used to press the flexible circuit board onto the base plate.

[0013] Furthermore, the flexible circuit board dynamic flipping and bending mechanism also includes:

[0014] Adapter plate, used to support the material support plate;

[0015] A connecting rod, one end of which is rotatably connected to the fixed base, and the other end of which is fixed to the adapter plate; the connecting rod and the connecting block rotate on the fixed base around the same axis;

[0016] A cover plate, fixedly connected to the connecting rod, is used to fix the first pressure plate between the cover plate and the connecting rod.

[0017] Furthermore, the connecting block includes a first connecting block and a second connecting block, the first connecting block and the second connecting block are fixedly connected, a rotating shaft passes through the fixed base, the first connecting block and the second connecting block in sequence, and another rotating shaft passes through the first connecting block, the first pressure plate and the second connecting block in sequence.

[0018] Furthermore, a bending plate is provided on the side of the first pressure plate near the second pressure plate, and the bending plate is used to bend the flexible circuit board.

[0019] Furthermore, the first pressure plate and the second pressure plate are arranged in parallel.

[0020] Furthermore, the first pressure plate rotates at an angle of 0 to 90°.

[0021] Furthermore, there are two flexible circuit board dynamic flipping and bending mechanisms, which are symmetrically arranged. The axis of symmetry is the same as the rotation axis of the connecting block on the fixed base, and the axis of symmetry is parallel to the flipping line of the flexible circuit board.

[0022] Another objective of this utility model is to provide a flipping and bending device, the flipping and bending device comprising:

[0023] The aforementioned flexible circuit board dynamic flipping and bending mechanism;

[0024] The frame is fixedly connected to the base plate;

[0025] A drive mechanism, fixedly mounted on the frame, is used to push the material support plate, causing the flexible circuit board between the material support plate and the first pressure plate to bend.

[0026] This utility model embodiment provides a dynamic flipping and bending mechanism for flexible circuit boards. The flexible circuit board is fixed in two positions: one between a support plate and a first pressure plate, and the other between a base plate and a second pressure plate. Since the support plate and the first pressure plate are fixed, when the power source drives the support plate to rotate, the support plate and the first pressure plate rotate around the fixed base, bending the flexible circuit board. The bending angle can be controlled. The mechanism of this embodiment is highly flexible, requires no additional molds, has relatively low cost, and can be used to test and verify the lifespan of the flexible circuit board. Attached Figure Description

[0027] Figure 1 The three-dimensional dynamic flipping and bending mechanism of the flexible circuit board provided in the embodiment of this utility model Figure 1 ;

[0028] Figure 2 The three-dimensional dynamic flipping and bending mechanism of the flexible circuit board provided in the embodiment of this utility model Figure 2 ;

[0029] Figure 3 A top view of the flexible circuit board dynamic flipping and bending mechanism provided in an embodiment of this utility model;

[0030] Figure 4 A perspective view of the first pressure plate provided for an embodiment of this utility model;

[0031] 1. Base plate; 2. Fixing seat; 3. Connecting block; 4. Material support plate; 5. First pressure plate; 6. Second pressure plate; 7. Adapter plate; 8. Connecting rod; 9. Cover plate;

[0032] 31. First connecting block; 32. Second connecting block;

[0033] 51. Bending plate. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0035] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but unless otherwise stated, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0036] In one embodiment, such as Figure 1-3 As shown, a dynamic flipping and bending mechanism for flexible circuit boards is proposed, the mechanism comprising:

[0037] Base plate 1;

[0038] The fixing seat 2 is fixedly mounted on the base plate 1;

[0039] The connecting block 3 is rotatably connected at one end to the fixed base 2 and at the other end to the first pressure plate 5;

[0040] Material support plate 4 is used to place flexible circuit boards;

[0041] The first pressing plate 5 is fixedly connected to the supporting plate 4 and is used to press the flexible circuit board onto the supporting plate 4.

[0042] The second pressing plate 6 is fixedly connected to the base plate 1 and is used to press the flexible circuit board onto the base plate 1.

[0043] In this embodiment, the base plate 1 serves as a support and is generally mounted on the frame of the device. Two fixing seats 2 are provided, located at both ends of the base plate 1; two connecting blocks 3 are also provided, with their rotation axes being the same. The first pressure plate 5 is elongated, with two rotating blocks rotatably connected to its ends, and its middle portion used to press down on the flexible circuit board. The second pressure plate 6 is laterally positioned between the two fixing seats 2 to press down on the flexible circuit board; the second pressure plate 6 is parallel to the first pressure plate 5. The rotation angle of the first pressure plate 5 is 0~90°. In this embodiment, the flexible circuit board is fixed in two positions: one between the support plate 4 and the first pressure plate 5, and the other between the base plate 1 and the second pressure plate 6. Since the support plate 4 and the first pressure plate 5 are fixed, when the power source pushes the support plate 4 to rotate, the support plate 4 and the first pressure plate 5 rotate around the fixing seat 2, bending the flexible circuit board; the bending angle is controllable. The mechanism in this embodiment is highly flexible, requires no additional molds, and has a relatively low cost. It can simulate the scenario of flexible circuit boards being repeatedly folded or bent in half at 0-90°, and can test and verify the lifespan of flexible circuit boards.

[0044] It should be noted that, unless otherwise specified, the term "fixed" in this utility model can be regarded as one or more combinations of fixing with nuts, welding, bonding, and tenon joints; these fixing methods are all conventional, and as long as there is no mechanical interference, they can all be regarded as fixing methods of this utility model.

[0045] In one optimized solution, a dynamic flipping and bending mechanism for the flexible circuit board is specifically added. This dynamic flipping and bending mechanism for the flexible circuit board further includes:

[0046] Adapter plate 7 is used to support the material support plate 4;

[0047] The connecting rod 8 is rotatably connected to the fixed base 2 at one end and fixed to the adapter plate 7 at the other end; the connecting rod 8 and the connecting block 3 rotate around the same axis on the fixed base 2.

[0048] The cover plate 9 is fixedly connected to the connecting rod 8 and is used to fix the first pressure plate 5 between the cover plate 9 and the connecting rod 8.

[0049] In this optimized design, two connecting rods 8 are provided, each rotatably connected to one of the two fixed seats 2. The adapter plate 7 then fixes the two connecting rods 8 together, supporting the material support plate 4 and providing support and fixation. The connecting rods 8 pass under the first pressure plate 5, and the cover plate 9 passes over the first pressure plate 5. The cover plate 9 is fixedly connected to the connecting rods 8, thereby stabilizing the first pressure plate 5 and further fixing the flexible circuit board. During operation, the power source acts directly on the adapter plate 7, driving the material support plate 4 to rotate, resulting in more stable rotation.

[0050] In one optimized embodiment, the connecting block 3 includes a first connecting block 31 and a second connecting block 32, which are fixedly connected. A rotating shaft passes sequentially through the fixed base 2, the first connecting block 31, and the second connecting block 32, while another rotating shaft passes sequentially through the first connecting block 31, the first pressure plate 5, and the second connecting block 32. In this optimized embodiment, the connecting block consists of two parts: one end of the connecting block is rotatably mounted on the fixed base 2, and the first pressure plate 5 is rotatably mounted between the first connecting block 31 and the second connecting block 32. This split structure facilitates installation and disassembly.

[0051] In an optimized solution, such as Figure 4 As shown, a bending plate 51 is provided on the side of the first pressure plate 5 near the second pressure plate 6. The bending plate 51 is used to bend the flexible circuit board. In this optimized solution, the bending plate 51 is in direct contact with the flexible circuit board, and the shape, width, and size of the crease on the flexible circuit board depend on the shape of the bending plate 51.

[0052] In one optimized solution, two flexible circuit board dynamic flipping and bending mechanisms are provided, symmetrically arranged, with the axis of symmetry being the same as the rotation axis of the connecting block 3 on the fixed base 2, and the axis of symmetry being parallel to the flipping line of the flexible circuit board. In this optimized solution, the two flexible circuit board dynamic flipping and bending mechanisms share the base plate 1 and the fixed base 2, as shown below. Figure 1 and Figure 2 As shown in the diagram, the mechanism of this optimized scheme can achieve bilateral flipping motion, thereby improving efficiency.

[0053] In one embodiment, a turning and bending device is provided, the turning and bending device comprising:

[0054] The flexible circuit board dynamic flipping and bending mechanism described in the above embodiments;

[0055] The frame is fixedly connected to the base plate 1;

[0056] A drive mechanism, fixedly mounted on the frame, is used to push the material support plate 4, causing the flexible circuit board between the material support plate 4 and the first pressure plate 5 to bend.

[0057] In this embodiment, the difference between the flipping and bending device and the previous embodiment lies only in the frame and drive mechanism; the specific structural features and effects will not be elaborated further. The drive mechanism can be a common hydraulic drive structure, a pneumatic drive structure, or an electric drive structure.

[0058] The working principle of the above embodiment is as follows: During loading, the flexible circuit board is placed in the middle position of the flexible circuit board dynamic flipping and bending mechanism, and placed on the support plate 4. The first pressure plate 5 and the second pressure plate 6 are used to press the flexible circuit board, and the cover plate 9 and the connecting rod 8 are used to press the first pressure plate 5. During rotation, the drive mechanism acts on the adapter plate 7, driving the linkage mechanism composed of the connecting block 3, the first pressure plate 5, the connecting rod 8 and the cover plate 9, thereby driving the support plate 4 and the flexible circuit board to achieve a flipping and bending movement of 0°-90°.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dynamic flipping and bending mechanism for a flexible circuit board, characterized in that, The flexible circuit board dynamic flipping and bending mechanism includes: Base plate; The mounting base is fixedly mounted on the base plate; The connecting block is rotatably connected at one end to the fixed base and at the other end to the first pressure plate; A support plate, used to hold flexible circuit boards; The first pressing plate is fixedly connected to the supporting plate and is used to press the flexible circuit board onto the supporting plate. The second pressure plate is fixedly connected to the base plate and is used to press the flexible circuit board onto the base plate.

2. The flexible circuit board dynamic flipping and bending mechanism according to claim 1, characterized in that, The flexible circuit board dynamic flipping and bending mechanism also includes: Adapter plate, used to support the material support plate; A connecting rod, one end of which is rotatably connected to the fixed base, and the other end of which is fixed to the adapter plate; the connecting rod and the connecting block rotate on the fixed base around the same axis; A cover plate, fixedly connected to the connecting rod, is used to fix the first pressure plate between the cover plate and the connecting rod.

3. The flexible circuit board dynamic flipping and bending mechanism according to claim 1, characterized in that, The connecting block includes a first connecting block and a second connecting block, which are fixedly connected. A rotating shaft passes through the fixed base, the first connecting block and the second connecting block in sequence, and another rotating shaft passes through the first connecting block, the first pressure plate and the second connecting block in sequence.

4. The flexible circuit board dynamic flipping and bending mechanism according to claim 3, characterized in that, A bending plate is provided on the side of the first pressure plate near the second pressure plate, and the bending plate is used to bend the flexible circuit board.

5. The flexible circuit board dynamic flipping and bending mechanism according to claim 4, characterized in that, The first pressure plate and the second pressure plate are arranged in parallel.

6. The flexible circuit board dynamic flipping and bending mechanism according to claim 5, characterized in that, The first pressure plate rotates at an angle of 0~90°.

7. The flexible circuit board dynamic flipping and bending mechanism according to claim 1, characterized in that, The flexible circuit board dynamic flipping and bending mechanism is provided in two symmetrical arrangements. The axis of symmetry is the same as the rotation axis of the connecting block on the fixed base, and the axis of symmetry is parallel to the flipping line of the flexible circuit board.

8. A flipping and bending device, characterized in that, The turning and bending device includes: The flexible circuit board dynamic flipping and bending mechanism according to any one of claims 1-7; The frame is fixedly connected to the base plate; A drive mechanism, fixedly mounted on the frame, is used to push the material support plate, causing the flexible circuit board between the material support plate and the first pressure plate to bend.

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