Circuit board bending performance testing device
By adjusting the height of the clamping head and using a threaded rod clamping structure in the circuit board bending performance testing device, the clamping problem of circuit boards of different shapes and thicknesses was solved, improving the accuracy and reliability of the test.
Patent Information
- Application Number
- CN202423117650.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing circuit board bending performance testing equipment cannot effectively clamp circuit boards of different shapes and thicknesses, resulting in inaccurate test results and affecting the reliability and effectiveness of the test.
A circuit board bending performance testing device was designed. By sliding a vertical rod inside the flip frame and fixed seat, the height of the clamping head can be adjusted. The combination structure of threaded rod and clamping block can achieve stable clamping of circuit boards of different shapes and thicknesses. Rubber pads are used to increase friction and prevent slippage.
It achieves stable clamping of circuit boards of different shapes and thicknesses, improves the accuracy and reliability of test results, and ensures the integrity of test data.
Smart Images
Figure CN223841603U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of circuit board testing technology, and in particular relates to a circuit board bending performance testing device. Background Technology
[0002] In the research and development and production of electronic components, circuit boards are indispensable key components. Flexible printed circuit boards (FPCs) are highly reliable and extremely flexible printed circuit boards made with polyimide or polyester film as the substrate, featuring high wiring density, light weight, thinness, and good bendability. Existing circuit board bending performance testing devices typically have fixed clamping heads. However, since manufactured circuit boards come in various shapes, fixed clamping heads cannot effectively perform bending tests on circuit boards of different shapes, leading to inaccurate bending test results and affecting the reliability and validity of the test results. Utility Model Content
[0003] This invention addresses the problem in existing technologies where clamping heads cannot effectively perform bending tests on circuit boards of different shapes, leading to inaccurate bending test results and affecting the reliability and validity of the test results. The following technical solution is proposed:
[0004] A circuit board bending performance testing device includes a test platform, a drive motor, and a flipping frame. A placement plate is fixedly installed on the top of the test platform, and a fixed seat is fixedly installed at the center of the top of the flipping frame. The same vertical rod is slidably installed inside the flipping frame and the fixed seat. A clamping head is fixedly installed at the bottom of the vertical rod. A first threaded rod is rotatably connected inside the fixed seat. A slider is threadedly connected to the outer surface of the first threaded rod. Clamping blocks are symmetrically slidably installed inside the fixed seat. An inclined groove is opened inside each of the two clamping blocks. A fixed shaft is symmetrically fixedly installed on the outer side of the slider.
[0005] As a preferred embodiment of the above technical solution, one end of each of the two clamping blocks is integrally formed with a protrusion, and a groove is provided inside the fixing seat at the position corresponding to the outer side of the protrusion.
[0006] As a preferred embodiment of the above technical solution, the radius of the fixed shaft is equal to the inner diameter of the inclined groove, and the outer surface of the fixed shaft is in contact with the inner wall of the inclined groove.
[0007] As a preferred embodiment of the above technical solution, a limiting plate is fixedly installed inside the fixed base, and the slider is slidably engaged with the outside of the limiting plate.
[0008] As a preferred embodiment of the above technical solution, connecting rods are symmetrically fixedly installed between the inner walls of the clamping head, a second threaded rod is rotatably connected inside the clamping head, and a clamping plate is threadedly connected to the outer surface of the second threaded rod.
[0009] As a preferred embodiment of the above technical solution, a rubber pad is fixedly installed on one side of the clamping plate.
[0010] The beneficial effects of this utility model are as follows:
[0011] (1) This utility model slides the vertical rod inside the fixed base and the flipping frame. By adjusting the height of the vertical rod, the height of the clamping head at the bottom can be adjusted, which makes it easier to clamp circuit boards of different shapes. It can test the bending performance of the circuit board at different positions, obtain more complete performance data, and improve the accuracy of the test results.
[0012] (2) By installing the second threaded rod, the present invention installs one end of the circuit board inside the clamping head when testing the bending degree of the circuit board, which facilitates the clamping and fixing of circuit boards of different thicknesses, realizes convenient clamping and positioning of circuit boards of various thicknesses, and effectively ensures the accuracy of the test results. Attached Figure Description
[0013] Figure 1 The diagram shown is a schematic representation of the overall structure of a circuit board bending performance testing device.
[0014] Figure 2 The diagram shown is a schematic of the internal structure of the mounting base of a circuit board bending performance testing device.
[0015] Figure 3 The diagram shown is a schematic of the mounting base of a circuit board bending performance testing device.
[0016] Figure 4 The diagram shows the internal structure of the clamping head of a circuit board bending performance testing device.
[0017] In the diagram: 1. Test bench; 2. Drive motor; 3. Tilting frame; 4. Placement plate; 5. Fixing base; 6. Vertical rod; 7. Clamping head; 8. First threaded rod; 9. Slider; 10. Clamping block; 11. Inclined groove; 12. Fixed shaft; 13. Protrusion; 14. Slide groove; 15. Limiting plate; 16. Connecting rod; 17. Second threaded rod; 18. Clamping plate; 19. Rubber pad. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.
[0019] Example 1: This utility model provides a circuit board bending performance testing device, such as... Figures 1 to 4As shown, the device includes a test bench 1, a drive motor 2, and a flipping frame 3. A placement plate 4 is fixedly installed on the top of the test bench 1, and a fixed seat 5 is fixedly installed at the center of the top of the flipping frame 3. The same vertical rod 6 is slidably installed inside the flipping frame 3 and the fixed seat 5. A clamping head 7 is fixedly installed at the bottom of the vertical rod 6. When using the existing circuit board bending performance testing device, one end of the circuit board to be tested is fixedly installed on the placement plate 4, and the other end is installed inside the clamping head 7. Then, the various parameters of the testing device are adjusted, and the drive motor 2 is started to drive the flipping frame 3 to rotate back and forth to realize the bending performance test of the circuit board. The above are all existing technologies and will not be described in detail here.
[0020] The fixed base 5 is internally rotatably connected to a first threaded rod 8. A slider 9 is threadedly connected to the outer surface of the first threaded rod 8. Clamping blocks 10 are symmetrically slidably installed inside the fixed base 5. The end faces of both clamping blocks 10 near the vertical rod 6 are both arc-shaped, with the radius of the arc being the same as the radius of the vertical rod 6. Anti-slip pads made of rubber are fixedly installed on the inner walls of the arc-shaped surfaces of both clamping blocks 10. When the two clamping blocks 10 clamp and fix the vertical rod 6, the anti-slip pads effectively increase the friction between the vertical rod 6 and the clamping blocks 10, preventing the vertical rod 6 from slipping due to reciprocating rotation during operation. Inclined grooves 11 are formed inside each of the two clamping blocks 10. Fixed shafts 12 are symmetrically fixedly installed on the outer side of the slider 9. The radius of the fixed shafts 12 is equal to the inner diameter of the inclined grooves 11, and the outer surface of the fixed shafts 12... The vertical rod 6 is attached to the inner wall of the inclined groove 11. During use, the position and height of the vertical rod 6 are adjusted according to the size of the circuit board to be tested. Then, the first threaded rod 8 is rotated, which causes the slider 9 to move closer to the vertical rod 6. This, in turn, causes the fixed shaft 12 to move closer to the vertical rod 6. When the fixed shaft 12 moves inside the inclined groove 11, it applies a force to the clamping block 10 to move closer to the vertical rod 6. This causes the slider 9 to move closer to the vertical rod 6, which in turn causes both clamping blocks 10 to move closer to the vertical rod 6 at the same time. When the fixed shaft 12 moves to a semi-circular groove in the inclined groove 11 close to the vertical rod 6, the arc-shaped surface of the clamping block 10 is attached to the outer surface of the vertical rod 6, thereby clamping and fixing the vertical rod 6 at a specific height position, which is convenient for bending tests on the circuit board.
[0021] like Figure 2 and Figure 3 As shown, one end of each of the two clamping blocks 10 is integrally formed with a protrusion 13. The inside of the fixing base 5 is provided with a groove 14 corresponding to the outer position of the protrusion 13. When the clamping block 10 slides inside the fixing base 5, the action of the protrusion 13 and the groove 14 makes the clamping block 10 more stable when sliding and prevents it from shaking when sliding.
[0022] like Figure 2 and Figure 3 As shown, a limiting plate 15 is fixedly installed inside the fixed base 5. The slider 9 is slidably engaged with the outside of the limiting plate 15. Through the action of the limiting plate 15, when the first threaded rod 8 rotates, the slider 9 is driven to slide towards or away from the vertical rod 6 through the threaded connection. The outer surface of the limiting plate 15 is in contact with the inner wall of the slider 9, which effectively ensures the stability of the slider 9 during operation.
[0023] like Figure 1 and Figure 4 As shown, connecting rods 16 are symmetrically fixedly installed between the inner walls of the clamping head 7. A second threaded rod 17 is rotatably connected inside the clamping head 7. A clamping plate 18 is threadedly connected to the outer surface of the second threaded rod 17. By rotating the second threaded rod 17, the clamping plate 18 is moved closer to the circuit board to be clamped through the threaded connection, thereby achieving stable clamping of the circuit board and keeping the circuit board stable during the bending test.
[0024] like Figure 1 and Figure 4 As shown, a rubber pad 19 is fixedly installed on one side of the clamping plate 18. Through the action of the rubber pad 19, when the clamping plate 18 clamps one end of the circuit to be tested, the rubber pad 19 can increase the friction and buffering effect at the clamping position, effectively protect the circuit board from damage, and improve the stability during the clamping process.
[0025] Working principle: During use, the operator slides the vertical rod 6 to move the clamping head 7, adjusting its position and height, according to the shape and size of the circuit board to be tested. Then, the operator rotates the first threaded rod 8, which moves the slider 9 closer to the vertical rod 6 through the threaded connection. As the slider 9 moves, it moves the fixed shaft 12 inside the inclined groove 11, applying a force to the clamping block 10 to move closer to the vertical rod 6. This causes the clamping block 10 to slide closer to the vertical rod 6, so that the arc-shaped surfaces of the two clamping blocks 10 are tightly attached to the outer surface of the vertical rod 6, thereby clamping and fixing the vertical rod 6. This fixes the clamping head 7 at the height to be tested, facilitating the bending test of the circuit board.
[0026] Subsequently, the staff fixed one end of the circuit board onto the placement plate 4 and the other end into the clamping head 7. By rotating the second threaded rod 17, the clamping plate 18 was moved closer to the circuit board through the threaded connection, thereby clamping and fixing the other end of the circuit board. This allows for convenient clamping and fixing of circuit boards of various thicknesses, preventing the circuit board from falling off during testing and ensuring the accuracy and reliability of the test structure.
[0027] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A circuit board bending performance testing device, characterized in that, The test platform (1), drive motor (2), and flipping frame (3) are included. A placement plate (4) is fixedly installed on the top of the test platform (1). A fixed seat (5) is fixedly installed at the center of the top of the flipping frame (3). The same vertical rod (6) is slidably installed inside the flipping frame (3) and the fixed seat (5). A clamping head (7) is fixedly installed at the bottom of the vertical rod (6). A first threaded rod (8) is rotatably connected inside the fixed seat (5). A slider (9) is threadedly connected to the outer surface of the first threaded rod (8). A clamping block (10) is symmetrically slidably installed inside the fixed seat (5). An inclined groove (11) is opened inside both clamping blocks (10). A fixed shaft (12) is symmetrically fixedly installed on the outer side of the slider (9). The fixed shaft (12) is located inside the corresponding inclined groove (11).
2. The circuit board bending performance testing device according to claim 1, characterized in that, One end of each of the two clamping blocks (10) is integrally formed with a protrusion (13), and a groove (14) is provided inside the fixing seat (5) at the position corresponding to the outer side of the protrusion (13).
3. The circuit board bending performance testing device according to claim 1, characterized in that, The radius of the fixed shaft (12) is equal to the inner diameter of the inclined groove (11), and the outer surface of the fixed shaft (12) is attached to the inner wall of the inclined groove (11).
4. The circuit board bending performance testing device according to claim 1, characterized in that, The fixed seat (5) is internally fixedly installed with a limiting plate (15), and the slider (9) is slidably engaged with the outside of the limiting plate (15).
5. The circuit board bending performance testing device according to claim 1, characterized in that, Connecting rods (16) are symmetrically fixed between the inner walls of the clamping head (7). A second threaded rod (17) is rotatably connected inside the clamping head (7). A clamping plate (18) is threadedly connected to the outer surface of the second threaded rod (17).
6. The circuit board bending performance testing device according to claim 1, characterized in that, A rubber pad (19) is fixedly installed on one side of the clamp (18).