FPC bending test fixture, test device and production line
By designing an FPC bending test fixture, automatic counting and resistance monitoring are achieved using clamping components and resistance testing components. This solves the problems of unclear counting, non-standard angles, and high labor costs in existing technologies, and improves the accuracy and efficiency of testing.
Patent Information
- Application Number
- CN202423040652.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing FPC bending test fixtures suffer from unclear counting, non-standard bending angles, high labor costs, and difficulty in timely detection of fractures.
Design an FPC bending test fixture, including a clamping component, a bending component, a bending shim, and a resistance testing component. The clamping component clamps the FPC, the bending shim ensures the bending angle, and the resistance testing component and control device are combined to realize automatic counting and resistance monitoring.
It enables more accurate acquisition of test values, simplifies the testing process, reduces the workload of testers, and ensures the standardization of bending angles and timely detection of fractures.
Smart Images
Figure CN223553537U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of FPC testing technology, and in particular to an FPC bending test fixture, testing device and production line. Background Technology
[0002] Flexible printed circuit boards (FPCs) are printed circuits made of flexible insulating substrates (polyester film or polyimide). FPCs can be freely bent, rolled, and folded, allowing for arbitrary arrangement according to spatial layout requirements and free movement and expansion in three-dimensional space, thus achieving integrated component assembly and wire connection. Therefore, FPCs undergo rigorous bending tests before leaving the factory to ensure they fully meet installation requirements.
[0003] Existing bending test fixtures and methods typically involve the following steps:
[0004] 1. Attach one end of the FPC to the pin gauge plate and press it in place with one hand.
[0005] 2. Hold the FPC with your other hand and make it bend along the needle gauge.
[0006] 3. Count verbally while bending.
[0007] 4. After bending the FPC a certain number of times, visually inspect it for any breaks.
[0008] Based on this, this application proposes an FPC bending test fixture to solve the drawbacks of previous needle gauge fixtures, such as unclear bending counts, non-standard bending angles, inability to detect FPC breakage in a timely manner, and huge labor costs. Summary of the Invention
[0009] The purpose of this application is to at least solve one of the technical problems existing in the prior art. To this end, this application proposes an FPC bending test fixture, which can obtain test values more accurately, simplify the testing process, and reduce the workload of testers.
[0010] This application also proposes a testing apparatus including the aforementioned FPC bending test fixture.
[0011] This application also proposes a production line that includes the above-mentioned testing apparatus.
[0012] The FPC bending test fixture according to the first aspect of this application includes:
[0013] Clamping components are used to clamp the FPC;
[0014] The bending component includes a first bending portion and a second bending portion that can move synchronously along a first direction. The first bending portion and the second bending portion are spaced apart along the first direction and located on both sides of the FPC.
[0015] A bent shim is provided on the clamping component;
[0016] A resistance testing component is used to monitor the resistance of the FPC;
[0017] A control device is used to receive data from the resistance testing component, and the control device is capable of controlling the movement of the bending component.
[0018] The FPC bending test fixture according to the first aspect of this application has at least the following advantages: the FPC is clamped by clamping components, the bending shims are used to ensure that the bending angle meets the test requirements, the bending components are used in conjunction with the bending shims for positioning and bending, and resistance monitoring and automatic counting are achieved by setting resistance testing components and control devices during bending, thereby obtaining test values more accurately, simplifying the test process, and reducing the workload of test personnel.
[0019] According to the FPC bending test fixture of the first aspect embodiment of this application, the clamping component includes a first clamping block, the bending shim is detachably disposed on the first clamping block, and a second clamping station for clamping the FPC is provided between the bending shim and the first clamping block.
[0020] According to the first aspect of the present application, the FPC bending test fixture includes a clamping component comprising a first clamping block and a second clamping block that are movable relative to each other in a first direction, a first clamping station for clamping the FPC is provided between the first clamping block and the second clamping block, and bending shims are respectively disposed on the first clamping block and the second clamping block.
[0021] According to the FPC bending test fixture of the first aspect embodiment of this application, the clamping component includes a second driving member and a second guide portion, wherein the first clamping block or the second clamping block is movably disposed on the second guide portion and driven by the second driving member.
[0022] According to the FPC bending test fixture of the first aspect embodiment of this application, the first bending portion and the second bending portion are configured as rod-shaped structures, the first bending portion and the second bending portion are located above the clamping member, and there is a gap between the first bending portion and the second bending portion to accommodate the FPC, so that when the first bending portion and the second bending portion move synchronously, the FPC can be bent at the bending pad.
[0023] According to the first aspect of the present application, the FPC bending test fixture includes a first driving member, a connecting plate, a moving block, and a first guide portion. The first driving member is used to drive the connecting plate to move in a first direction. The moving block is slidably disposed on the first guide portion and connected to the connecting plate. The first bending portion and the second bending portion are disposed on the moving block at intervals from each other.
[0024] According to the FPC bending test fixture of the first aspect of this application, the first drive member includes a counting cylinder, and the control device is used to receive data from the counting cylinder.
[0025] According to the FPC bending test fixture of the first aspect embodiment of this application, the resistance test assembly includes a resistance tester and probes, the probes are respectively disposed at both ends of the FPC, and the resistance tester is electrically connected to each of the probes.
[0026] The testing apparatus according to a second aspect of this application includes: an FPC bending test fixture as described in a first aspect of this application.
[0027] The production line according to a third aspect of this application includes: a testing apparatus as described in a second aspect of this application.
[0028] It is easy to understand that the testing device in the second aspect embodiment of this application and the production line in the third aspect embodiment of this application both have the same technical effects as the FPC bending test fixture in the first aspect embodiment, and therefore will not be described again.
[0029] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0030] The present application will be further described below with reference to the accompanying drawings and embodiments;
[0031] Figure 1 This is a schematic diagram of the structure of the FPC during a 90° bending test in an embodiment of this application;
[0032] Figure 2 This is a schematic diagram of the structure of the FPC during a 180° bending test in an embodiment of this application.
[0033] Figure label:
[0034] 100. Clamping component; 110. Second driving component; 120. Second guide component;
[0035] 200, Bending component; 210, First driving component; 220, Connecting plate; 230, Moving block; 240, First guide section;
[0036] 300. Bending gasket;
[0037] 400. Resistance test component. Detailed Implementation
[0038] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0039] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0040] In the description of this application, "several" means one or more, "more than" means at least two, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0041] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in this application after considering the specific content of the technical solution.
[0042] Reference Figures 1 to 2 The FPC bending test fixture of the first aspect of this application includes a clamping component 100, a bending component 200, a bending pad 300, a resistance test assembly 400, and a control device.
[0043] The clamping component 100 is used to clamp the FPC; the bending component 200 includes a first bending portion and a second bending portion that can move synchronously along a first direction, the first bending portion and the second bending portion are spaced apart along the first direction and located on both sides of the FPC; the bending shim 300 is disposed on the clamping component 100; the resistance testing component 400 is used to monitor the resistance of the FPC; the control device is used to receive data from the resistance testing component 400, and the control device is able to control the movement of the bending component 200.
[0044] It is understandable that by clamping the FPC with the clamping component 100, using the bending shim 300 to ensure that the bending angle meets the test requirements, and using the bending component 200 in conjunction with the bending shim 300 for positioning and bending, the resistance monitoring and automatic counting are achieved through the setting of the resistance testing component 400 and the control device during bending, so as to obtain more accurate test values, simplify the test process, and reduce the workload of testers.
[0045] In some embodiments, the clamping component 100 clamps the FPC according to the test requirements and places it in a suitable state. The first bending portion and the second bending portion are spaced apart along the first direction and located on both sides of the FPC, so that the first bending portion and the second bending portion can act on the FPC and bend it when they move left and right along the first direction according to the test requirements, thereby improving bending efficiency. During bending, the FPC bends at a certain angle along the bending pad 300 to ensure the test angle and avoid bending damage. To further ensure the counting accuracy of bending, the resistance test component 400 monitors the resistance of the FPC, enabling timely detection of FPC breakage. The control device determines the motion parameters of the bending component 200 in real time, and the counting accuracy is ensured based on the relationship established between the resistance value and the motion parameters. This addresses the drawbacks of previous needle gauge fixtures, such as unclear bending counts, non-standard bending angles, inability to detect FPC breakage in a timely manner, and high labor costs.
[0046] Understandably, the FPC bending test requires performing two tests on the FPC: 90° and 180° bends. Based on the different test requirements, the structure of the clamping component 100 needs to be adaptively adjusted to accommodate the bending test. (Refer to...) Figure 2 The clamping component 100 is designed to be used in structures that can bend products to 180° for testing. In some embodiments of this application, the clamping component 100 includes a first clamping block, a bending pad 300 detachably disposed on the first clamping block, and a second clamping station for clamping the FPC between the bending pad 300 and the first clamping block. It is understood that the bending pad 300 is horizontally disposed on the surface of the first clamping block and is detachably connected to the first clamping block. During installation, the FPC is first placed on the surface of the first clamping block, and then the bending pad 300 is detachably disposed on the first clamping block and clamps the FPC, thereby horizontally clamping the FPC. The bending component 200 drives the FPC to bend 180° and makes the bent portion tightly adhere to the bending pad 300, thereby enabling the corresponding test to be completed.
[0047] In some embodiments, the bending washer 300 is detachably mounted on the first clamping block by threaded fasteners, thereby facilitating the use and clamping of the product. In other embodiments, it can also be mounted on the first clamping block using a common connection method, so that the FPC can be clamped simultaneously during setup.
[0048] Reference Figure 1 The clamping component 100 is designed to be used in a structure that can be bent to 90° for testing. In some embodiments of this application, the clamping component 100 includes a first clamping block and a second clamping block that can move relative to each other along a first direction. A first clamping station for clamping the FPC is provided between the first clamping block and the second clamping block. Bending shims 300 are respectively disposed on the first clamping block and the second clamping block. It is understood that the first clamping block and the second clamping block are spaced apart along the first direction and can move relative to each other, so that the FPC can be clamped when they are close together and released when they are far apart. Since the 90° bending test of the FPC usually needs to be performed separately in different directions, the bending shims 300 are respectively disposed on the first clamping block and the second clamping block, so that the FPC can be bent in the direction of the first clamping block and the second clamping block respectively to complete the test.
[0049] In some embodiments, when only a 90° bend test on one side is required, the bending pad 300 can be placed on the first clamping block or the second clamping block, thereby simplifying the fixture structure.
[0050] In some embodiments of this application, the clamping component 100 includes a second driving member 110 and a second guide portion 120. A first clamping block or a second clamping block is movably disposed on the second guide portion 120 and driven by the second driving member 110. It is understood that the second driving member 110 drives the first clamping block or the second clamping block to achieve relative proximity or relative distance, thereby completing the clamping process. The second guide portion 120 is used to guide the movement to improve the clamping accuracy.
[0051] In some embodiments, the second clamping block is fixedly installed, the second driving member 110 is connected to the first clamping block and used to drive the first clamping block to move, and the second guide part 120 is a guide rod that passes through the first clamping block to provide guidance. In other embodiments, the second guide part 120 may also adopt a guide groove, guide slider, or other structures, and the structure of the second guide part 120 can be selected according to actual needs.
[0052] In some embodiments of this application, the first bending portion and the second bending portion are configured as rod-shaped structures. The first bending portion and the second bending portion are located above the clamping member 100, and there is a gap between the first bending portion and the second bending portion to accommodate the FPC, so that when the first bending portion and the second bending portion move synchronously, they can drive the FPC to bend at the bending pad 300. It is understood that the rod-shaped structure can drive the FPC to bend more smoothly, and the rod-shaped structure can ensure a smoother fit between the FPC and the bending pad 300, making interference less likely.
[0053] In some embodiments, the first bend and the second bend are arranged parallel to each other in a direction perpendicular to the first direction.
[0054] In some embodiments of this application, the bending component 200 includes a first driving member 210, a connecting plate 220, a moving block 230, and a first guide portion 240. The first driving member 210 drives the connecting plate 220 to move along a first direction. The moving block 230 is slidably disposed on the first guide portion 240 and connected to the connecting plate 220. A first bending portion and a second bending portion are disposed on the moving block 230 at intervals from each other. It is understood that the first bending portion and the second bending portion are disposed on the moving block 230, and the moving block 230 is slidably disposed on the first guide portion 240, thereby enabling the first bending portion and the second bending portion to smoothly act on the FPC to achieve bending. The connecting plate 220, as a transmission member, connects the first driving member 210 and the moving block 230 respectively, so that the first driving member 210 drives the moving block 230 to move on the first guide portion 240 through the connecting plate 220.
[0055] In some embodiments, the first guide portion 240 may be a commonly used guide structure such as a guide rail, guide groove, or guide slider.
[0056] In some embodiments of this application, the first driving component 210 includes a counting cylinder, and the control device is used to receive data from the counting cylinder. It is understood that by setting the first driving component 210 as a counting cylinder, real-time counting is possible during driving, ensuring counting accuracy. The data from the counting cylinder can be fed back to the control device in real time, ensuring the accuracy of the test.
[0057] In other embodiments, other driving components capable of determining the count, such as stepper motors, can also be used. By adaptively adjusting the design of the driving structure, a similar effect can be achieved, which will not be described in further detail here.
[0058] Understandably, to ensure the accuracy and convenience of resistance testing, in some embodiments of this application, the resistance testing component 400 includes a resistance tester and probes, with the probes respectively disposed at both ends of the FPC, and the resistance tester electrically connected to each probe. By applying the probes to both ends of the FPC, a break in the FPC can be detected promptly, and the control device can determine the current count in a timely manner, thereby improving the accuracy of the test.
[0059] In some embodiments of this application, the two ends of the FPC are connected to the probes of a resistance tester, which can monitor the resistance change at any time. In use, the clamp controller is turned on, and the movable clamp on the left moves to the left along the clamp moving rod. The FPC to be tested is placed between the two clamps until the clamps firmly hold the FPC. The clamp controller is then turned off. Next, the cylinder switch is turned on, and the cylinder drives the connecting plate 220 and the bending rod to move left and right. When moving to the left, the bending rod bends the FPC 90° to the left; when moving to the right, the bending rod bends the FPC 90° to the right. Then, the bending angle is changed. The product is placed horizontally between the bending angle control plate and the clamps as shown in the 180-degree bending diagram. When the bending rod moves left and right, the product is bent 180° in one direction. When the resistance exceeds the set value, it indicates that the FPC has reached its bending limit. An alarm sounds, and feedback is sent to the counting cylinder to stop working.
[0060] Based on the above-mentioned FPC bending test fixture setup and usage method, the product can ensure a standardized bending angle, accurately know the number of bends, and detect FPC breakage during bending tests, while also achieving automatic bending and saving labor costs.
[0061] Reference Figures 1 to 2 The testing apparatus of the second aspect of this application can be an FPC testing apparatus, which includes the FPC bending test fixture of the first aspect of this application. Related testing methods suffer from problems such as inaccurate bending angles due to manual bending with pin gauges, inability to promptly detect bending limits, and errors caused by verbal counting. This application, however, uses automatic cylinder positioning bending, resistance monitoring, and automatic counting to obtain more accurate test values, simplifies the testing process, and reduces the workload of testing personnel.
[0062] Reference Figures 1 to 2 The production line of the third aspect of this application may be an FPC production line or an electronic product production line, and the production line includes the testing device of the second aspect of this application.
[0063] It is easy to understand that the testing device in the second aspect embodiment of this application and the production line in the third aspect embodiment of this application both have the same technical effects as the FPC bending test fixture in the first aspect embodiment, and therefore will not be described again.
[0064] The technical features of the above embodiments can be combined arbitrarily. 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.
[0065] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.
Claims
1. An FPC bending test fixture, characterized in that, include: Clamping components are used to clamp the FPC; The bending component includes a first bending portion and a second bending portion that can move synchronously along a first direction. The first bending portion and the second bending portion are spaced apart along the first direction and located on both sides of the FPC. A bent shim is provided on the clamping component; A resistance testing component is used to monitor the resistance of the FPC; A control device is used to receive data from the resistance testing component, and the control device is capable of controlling the movement of the bending component.
2. The FPC bending test fixture according to claim 1, characterized in that: The clamping component includes a first clamping block, the bending washer is detachably disposed on the first clamping block, and a second clamping station for clamping the FPC is provided between the bending washer and the first clamping block.
3. The FPC bending test fixture according to claim 1, characterized in that: The clamping component includes a first clamping block and a second clamping block that can move relative to each other in a first direction. A first clamping station for clamping FPC is provided between the first clamping block and the second clamping block. The bending shims are respectively disposed on the first clamping block and the second clamping block.
4. The FPC bending test fixture according to claim 3, characterized in that: The clamping component includes a second driving member and a second guide portion, wherein the first clamping block or the second clamping block is movably disposed on the second guide portion and is driven by the second driving member.
5. The FPC bending test fixture according to claim 1, characterized in that: The first bending portion and the second bending portion are configured as rod-shaped structures, and the first bending portion and the second bending portion are located above the clamping member. There is a gap between the first bending portion and the second bending portion to accommodate the FPC, so that when the first bending portion and the second bending portion move synchronously, the FPC can be bent at the bending pad.
6. The FPC bending test fixture according to claim 1, characterized in that: The bending component includes a first driving member, a connecting plate, a moving block, and a first guide portion. The first driving member is used to drive the connecting plate to move in a first direction. The moving block is slidably disposed on the first guide portion and connected to the connecting plate. The first bending portion and the second bending portion are disposed on the moving block at intervals from each other.
7. The FPC bending test fixture according to claim 6, characterized in that: The first driving component includes a counting cylinder, and the control device is used to receive data from the counting cylinder.
8. The FPC bending test fixture according to claim 1, characterized in that: The resistance testing assembly includes a resistance tester and probes. The probes are respectively disposed at both ends of the FPC, and the resistance tester is electrically connected to each of the probes.
9. A testing device, characterized in that, include: The FPC bending test fixture as described in any one of claims 1 to 8.
10. A production line, characterized in that, include: The testing apparatus as described in claim 9.