FPC bending device
Through the coordinated operation of the compacting component, support component, forming component, down-bending component and stress relief component, the problem of rebound after FPC bending is solved, the long-term stability and reliability of the product are achieved, and the loss of abnormal quality is reduced.
Patent Information
- Application Number
- CN202422222238.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-10
AI Technical Summary
The existing FPC bending operations are prone to rebound, the product conformation effect is poor, and the personnel inspection workload and quality abnormal losses are increased.
The compression assembly, support assembly, forming assembly, downward bending assembly, side bending assembly and stress relief assembly are used to work together to effectively release stress during bending through the stress relief assembly to avoid rebound and stress concentration.
It improves the long-term stability and reliability of FPC, reduces problems such as abnormal testing and downstream assembly, non-dimensional size compliance, and poor product appearance, and reduces the loss of personnel's visual inspection workload and quality abnormalities.
Smart Images
Figure CN223067277U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of FPC bending, and more specifically, to an FPC bending device. Background Art
[0002] An FPC is a highly flexible printed circuit board made of a flexible substrate (such as polyimide or polyester film), with characteristics such as bendability, foldability, and winding ability. Compared with traditional rigid circuit boards, FPCs have advantages such as being thin, light, flexible, and adaptable to complex shapes, and are widely used in electronic devices such as mobile phones, tablet computers, digital cameras, and automotive electronics.
[0003] In order to achieve the design of product thinness and miniaturization, as Figure 1 and Figure 2 shown, after the sensor is connected to the battery panel through the FPC, the FPC needs to be bent. The existing FPC bending operation usually adopts the method of flipping the gear 180 degrees for bending, but this method has large stress at the bent part after the module retreats, and the product is prone to springback, resulting in problems such as abnormal testing and downstream assembly, non-compliance with dimensional requirements, and poor product appearance, increasing the workload of manual visual inspection and the loss of quality abnormalities. Summary of the Invention
[0004] The purpose of the embodiments of this application is to provide an FPC bending device, which can solve the technical problems that the existing FPC is prone to springback after bending and the product has a poor shape retention effect.
[0005] The embodiments of this application provide an FPC bending device, including:
[0006] A bracket, on which a positioning table is provided. A placement groove is provided on the positioning table, and a pinhole is provided on the right side of the positioning table;
[0007] A pressing component, which is located above the placement groove;
[0008] A supporting component, which is located on the right side of the positioning table;
[0009] A forming component, which is located above the supporting component;
[0010] A side bending component, which is located behind the forming component;
[0011] A lower bending component, which is located behind the supporting component and below the side bending component;
[0012] A stress relief component, which is located on the right side of the supporting component.
[0013] Further, the pressing assembly includes an elastic pressing head and a pressing cylinder. The elastic pressing head is arranged on the telescopic rod of the pressing cylinder, and the pressing cylinder is fixed on the bracket.
[0014] Further, the elastic pressing head includes a pressing head and a rubber elastic block. The upper end of the pressing head is fixed on the telescopic rod of the pressing cylinder, and the rubber elastic block is arranged at the lower end of the pressing head.
[0015] Further, the supporting assembly includes a supporting block and a supporting cylinder. The supporting block is fixed on the telescopic rod of the supporting cylinder, and the supporting cylinder is fixed on the bracket.
[0016] Further, the forming assembly includes a forming block and a forming cylinder. The forming block is fixed on the telescopic rod of the forming cylinder, and the forming cylinder is fixed on the bracket.
[0017] Further, the lower bending assembly includes a lower bending block and a lower bending cylinder. The lower bending block is fixed on the telescopic rod of the lower bending cylinder, and the lower bending cylinder is fixed on the bracket.
[0018] Further, a forming arc is arranged at the front upper corner position of the lower bending block, and the central angle of the forming arc is 90°.
[0019] Further, the side bending assembly includes a side bending block and a side bending cylinder. The side bending block is fixed on the telescopic rod of the side bending cylinder, and the side bending cylinder is fixed on the bracket.
[0020] Further, the stress release assembly includes a stress release needle, a stress release motor, a mounting seat and a stress release cylinder. The diameter of the stress release needle is adapted to the diameter of the needle hole. One end of the stress release needle is connected to the output shaft of the stress release motor. The stress release motor is fixed on the mounting seat. The mounting seat is fixedly connected to the telescopic rod of the stress release cylinder, and the stress release cylinder is fixed on the bracket.
[0021] Advantages of the utility model:
[0022] Through the collaborative operation of the pressing assembly, the supporting assembly, the forming assembly, the lower bending assembly, the side bending assembly and the stress release assembly, the utility model realizes the bending work of the FPC. Among them, the stress release assembly can effectively release the stress generated during the bending process, avoid the rebound or stress concentration of the FPC after bending, thereby ensuring the long-term stability and reliability of the product, improving the shape retention effect of the product, avoiding problems such as abnormal testing and downstream assembly, non-conforming dimensions, and poor product appearance, and reducing the workload of manual visual inspection and the loss of quality abnormalities. Description of the drawings
[0023] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related accompanying drawings can be obtained based on these drawings without creative efforts.
[0024] Figure 1 It is a schematic structural diagram of a sensor connected to a battery panel through an FPC in the prior art;
[0025] Figure 2 For Figure 1 a schematic structural diagram after the FPC is bent in
[0026] Figure 3 a schematic structural diagram of some embodiments of the present application;
[0027] Figure 4 an exploded schematic diagram of a partial structure of some embodiments of the present application;
[0028] Figure 5 a schematic structural diagram when the FPC is bent in some embodiments of the present application;
[0029] The reference numerals are respectively:
[0030] 100, sensor; 200, FPC; 300, battery panel; 1, bracket; 2, positioning table; 21, placement groove; 22, pinhole; 3, pressing assembly; 31, elastic pressing head; 311, pressing head; 312, rubber elastic block; 32, pressing cylinder; 4, supporting assembly; 41, supporting block; 42, supporting cylinder; 5, forming assembly; 51, forming block; 52, forming cylinder; 6, side bending assembly; 61, side bending block; 62, side bending cylinder; 7, lower bending assembly; 71, lower bending block; 711, forming arc; 72, lower bending cylinder; 8, stress relief assembly; 81, stress relief needle; 82, stress relief motor; 83, mounting seat; 84, stress relief cylinder. Specific Embodiments
[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0032] Accordingly, 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 present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.
[0033] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.
[0034] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.
[0035] Furthermore, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.
[0036] In the description of the present application, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. Specific embodiments:
[0038] Such as Figure 2 and Figure 3As shown in the figure, the present application provides an FPC bending device, which includes a bracket 1, a pressing component 3, a supporting component 4, a forming component 5, a lower bending component 7, a side bending component 6 and a stress relief component 8. A positioning table 2 is provided on the bracket 1, a placing groove 21 is provided on the positioning table 2, a pin hole 22 is provided on the right side of the positioning table 2. The pressing component 3 is located above the placing groove 21, the supporting component 4 is located on the right side of the positioning table 2, the forming component 5 is located above the supporting component 4, the side bending component 6 is located behind the forming component 5, the lower bending component 7 is located behind the supporting component 4 and below the side bending component 6, and the stress relief component 8 is located on the right side of the supporting component 4. Through the coordinated operation of the pressing component 3, the supporting component 4, the forming component 5, the lower bending component 7, the side bending component 6 and the stress relief component 8, the bending work of the FPC 200 is realized. Among them, the stress relief component 8 can effectively release the stress generated during the bending process, avoid the FPC 200 from rebounding or stress concentration after bending, thereby ensuring the long-term stability and reliability of the product, improving the shape retention effect of the product, avoiding problems such as abnormal testing and downstream assembly, non-compliance with dimensional requirements, and poor product appearance, and reducing the workload of manual visual inspection and the loss of quality abnormalities.
[0039] As Figure 2 and Figure 3 shown in the figure, the pressing component 3 includes an elastic pressing head 31 and a pressing cylinder 32. The elastic pressing head 31 is arranged on the telescopic rod of the pressing cylinder 32, and the pressing cylinder 32 is fixedly arranged on the bracket 1. The pressing cylinder 32 drives the elastic pressing head 31 to move up and down. Specifically, the pressing cylinder 32 pushes the elastic pressing head 31 through the telescopic rod, and can firmly press the FPC 200 on the positioning table 2. The setting of the elastic pressing head 31 can ensure the pressure while avoiding damage to the FPC 200, ensuring that the FPC 200 does not shift during the bending process, thereby ensuring the accuracy and quality of the bending.
[0040] As Figure 3As shown, the elastic indenter 31 includes a pressing head 311 and a rubber elastic block 312. The upper end of the pressing head 311 is fixedly arranged on the telescopic rod of the pressing cylinder 32. The rubber elastic block 312 is arranged at the lower end of the pressing head 311. The elastic indenter 31 composed of the pressing head 311 and the rubber elastic block 312 can provide more stable and uniform pressure under the action of the pressing cylinder 32. The pressing head 311, as a connecting component, transmits the force of the cylinder to the rubber elastic block 312. With its elastic characteristics, the rubber elastic block 312 can better fit the surface of the FPC 200, ensuring that the FPC 200 can receive uniform pressing force at each part, preventing local loosening or warping during the bending process, thereby improving the bending accuracy and quality. Specifically, a clamping groove is provided at the lower end of the pressing head 311, and a clamping portion adapted to the clamping groove is provided at the upper end of the rubber elastic block 312. The rubber elastic block 312 is clamped to the pressing head 311 through the clamping portion. Through the cooperation of the clamping groove and the clamping portion, the rubber elastic block 312 can be quickly and accurately installed on the pressing head 311. During the production process, if it is necessary to replace the rubber elastic block 312, the operator can complete the replacement operation in a short time without complex tools and cumbersome steps, greatly improving the production efficiency.
[0041] As Figure 2 and Figure 3 shown, the support assembly 4 includes a support block 41 and a support cylinder 42. The support block 41 is fixedly arranged on the telescopic rod of the support cylinder 42. The support cylinder 42 is fixedly arranged on the bracket 1. By driving the support block 41 to move up and down through the support cylinder 42, when the support block 41 rises and contacts the FPC 200, it can provide a stable support force for the FPC 200, preventing the FPC 200 from deforming or shifting due to gravity or other external forces during the bending process, ensuring the smooth progress of the bending operation.
[0042] As Figure 2 and Figure 3 shown, the forming assembly 5 includes a forming block 51 and a forming cylinder 52. The forming block 51 is fixedly arranged on the telescopic rod of the forming cylinder 52. The forming cylinder 52 is fixedly arranged on the bracket 1. By driving the forming block 51 to move up and down through the forming cylinder 52, when the forming block 51 descends and contacts the FPC 200, it can provide a stable pressure for the FPC 200, prompting the FPC 200 to be bent in a predetermined shape.
[0043] As Figure 2 and Figure 3As shown, the lower bending assembly 7 includes a lower bending block 71 and a lower bending cylinder 72. The lower bending block 71 is fixedly arranged on the telescopic rod of the lower bending cylinder 72, and the lower bending cylinder 72 is fixedly arranged on the bracket 1. By driving the lower bending block 71 to move up and down through the lower bending cylinder 72, when the lower bending block 71 rises to contact the FPC 200 and performs bending, it can provide a stable pressure for the FPC 200, prompting the FPC 200 to be bent according to a predetermined shape.
[0044] As Figure 3 and Figure 4 shown, a forming arc 711 is provided at the front upper corner position of the lower bending block 71. The central angle of the forming arc 711 is 90°. The forming arc 711 with a 90° central angle can better fit the bending requirements of the FPC 200. During the bending operation, the forming arc 711 can guide the FPC 200 to be bent at an accurate angle, ensuring that the bending angle is 90°, improving the bending accuracy and consistency.
[0045] As Figure 2 and Figure 3 shown, the side bending assembly 6 includes a side bending block 61 and a side bending cylinder 62. The side bending block 61 is fixedly arranged on the telescopic rod of the side bending cylinder 62, and the side bending cylinder 62 is fixedly arranged on the bracket 1. By driving the side bending block 61 to move back and forth through the side bending cylinder 62, when the side bending block 61 contacts the FPC 200 and performs bending, it can provide a stable pressure for the FPC 200, prompting the FPC 200 to be side-bent according to a predetermined shape.
[0046] As Figure 2 and Figure 3 shown, the stress relief assembly 8 includes a stress relief needle 81, a stress relief motor 82, a mounting seat 83, and a stress relief cylinder 84. The diameter of the stress relief needle 81 is adapted to the diameter of the needle hole 22. One end of the stress relief needle 81 is connected to the output shaft of the stress relief motor 82. The stress relief motor 82 is fixedly arranged on the mounting seat 83. The mounting seat 83 is fixedly connected to the telescopic rod of the stress relief cylinder 84. The stress relief cylinder 84 is fixedly arranged on the bracket 1. By driving the mounting seat 83 to move left and right through the stress relief motor 82, and then driving the stress relief motor 82 and the stress relief needle 81 to move left and right, the stress relief motor 82 drives the stress relief needle 81 to rotate. Specifically, during the bending operation of the FPC 200, the stress relief needle 81 is inserted into the needle hole 22, and the stress relief motor 82 driving the stress relief needle 81 to rotate can gradually release the stress of the FPC 200 at the bending part. The rotation action of the relief needle will change the stress state of the FPC 200 at the bending place, making the stress distribution more uniform, thereby reducing or eliminating the possible springback phenomenon after bending and ensuring the shape retention effect of the product.
[0047] Working principle:
[0048] As Figure 2 - 4 shown, in the prior art, after the sensor 100 is connected to the battery panel 300 through the FPC 200, the FPC 200 needs to be bent. When using this device to bend the FPC 200, the following steps are involved:
[0049] Step 1: Place the sensor 100 in the placement groove 21, and make the connection part between the FPC 200 and the sensor 100 located within the placement groove 21, with the remaining parts of the FPC 200 and the battery panel 300 located outside the placement groove 21;
[0050] Step Two: The pressing cylinder 32 drives the elastic pressing head 31 to descend and press the FPC 200;
[0051] Step Three: The supporting cylinder 42 drives the supporting block 41 to rise and contact the FPC 200;
[0052] Step Four: The forming cylinder 52 drives the forming block 51 to descend and press the FPC 200;
[0053] Step Five: The stress relief cylinder 84 drives the mounting seat 83 to extend, driving the stress relief motor 82 and the stress relief needle 81 to extend, and inserting the stress relief needle 81 into the needle hole 22;
[0054] Step Six: The lower bending cylinder 72 starts and the lower bending block 71 rises, and the FPC 200 is pre-bent by 90°;
[0055] Step Seven: The forming cylinder 52 drives the forming block 51 to lift and avoid interference;
[0056] Step Eight: The side bending cylinder 62 drives the side bending block 61 to extend, and the FPC 200 is formed into 180°;
[0057] Step Nine: The forming cylinder 52 drives the forming block 51 to extend and press the FPC 200;
[0058] Step Ten: The lower bending cylinder 72 drives the lower bending block 71 to reset, and the side bending cylinder 62 drives the side bending block 61 to reset;
[0059] Step Eleven: The stress relief motor 82 drives the stress relief needle 81 to rotate to release the bending stress;
[0060] Step Twelve: The stress relief cylinder 84 drives the mounting seat 83 to retract and reset, driving the stress relief motor 82 and the stress relief needle 81 to retract and reset;
[0061] Step Thirteen: The forming cylinder 52 drives the forming block 51 to lift and reset;
[0062] Step Fourteen: The supporting cylinder 42 drives the supporting block 41 to descend and reset, and the pressing cylinder 32 drives the elastic pressing head 31 to lift and reset, and then the product is taken off.
[0063] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.
Claims
1. An FPC bending device, characterized in that, Comprising: A bracket, on which a positioning table is provided, a placing groove is provided on the positioning table, and a pin hole is provided on the right side of the positioning table; A pressing assembly, which is located above the placing groove; A supporting assembly, which is located on the right side of the positioning table; A forming assembly, which is located above the supporting assembly; A lower bending assembly, which is located at the rear side of the supporting assembly; A side bending assembly, which is located at the rear side of the forming assembly and above the lower bending assembly; A stress relief assembly, which is located on the right side of the supporting assembly.
2. The FPC bending device according to claim 1, characterized in that: The pressing assembly includes an elastic pressing head and a pressing cylinder. The elastic pressing head is arranged on the telescopic rod of the pressing cylinder, and the pressing cylinder is fixed on the bracket.
3. The FPC bending device according to claim 2, characterized in that: The elastic pressing head includes a pressing head and a rubber elastic block. The upper end of the pressing head is fixed on the telescopic rod of the pressing cylinder, and the rubber elastic block is arranged at the lower end of the pressing head.
4. The FPC bending device according to claim 1, characterized in that: The supporting assembly includes a supporting block and a supporting cylinder. The supporting block is fixed on the telescopic rod of the supporting cylinder, and the supporting cylinder is fixed on the bracket.
5. A kind of FPC bending device according to claim 1, characterized in that: The forming assembly includes a forming block and a forming cylinder. The forming block is fixed on the telescopic rod of the forming cylinder, and the forming cylinder is fixed on the bracket.
6. The FPC bending device according to claim 1, wherein: The lower bending assembly includes a lower bending block and a lower bending cylinder. The lower bending block is fixed on the telescopic rod of the lower bending cylinder, and the lower bending cylinder is fixed on the bracket.
7. The FPC bending device according to claim 6, wherein: A forming arc is provided at the upper front corner position of the lower bending block, and the central angle of the forming arc is 90°.
8. The FPC bending device according to claim 1, characterized in that: The side bending assembly includes a side bending block and a side bending cylinder. The side bending block is fixed on the telescopic rod of the side bending cylinder, and the side bending cylinder is fixed on the bracket.
9. The FPC bending device according to claim 1, characterized in that: The stress relief assembly includes a stress relief needle, a stress relief motor, a mounting seat and a stress relief cylinder. The diameter of the stress relief needle is adapted to the diameter of the pin hole. One end of the stress relief needle is connected to the output shaft of the stress relief motor. The stress relief motor is fixed on the mounting seat. The mounting seat is fixedly connected to the telescopic rod of the stress relief cylinder, and the stress relief cylinder is fixed on the bracket.