A circuit board bending test device

Abstract

The utility model discloses a kind of circuit board bending test devices, including workbench, the mobile head of being equipped with in workbench middle end upper side;Glass frame is enclosed between top plate and workbench, and inlet and outlet are communicated and arranged on top plate;Rectangular groove is equipped with in workbench upper middle end, and rectangular groove corresponds with the head;Limiting assembly is symmetrically moved and arranged on workbench and located at the both sides of rectangular groove, and limiting assembly includes the limiting pressing plate that can be hinged and extruded on workbench.The utility model is limited to press by the limiting assembly that can be symmetrically moved, and the both ends of the plate piece to be measured are limited;It can form a relatively closed operating space, the temperature of internal operating space can be changed and maintained, on the basis of reducing variable, variable can be provided for comparison when needed, improve the objective accuracy degree of detection.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, specifically to a circuit board bending test device. Background Technology

[0002] The core purpose of PCB bending tests is to ensure that PCBs can withstand mechanical stress during manufacturing, assembly, and actual use without functional failure or physical damage, which is a key step in ensuring product quality and reliability. On automated assembly lines, machines may grip, position, and transport PCBs; during soldering, the boards will be heated and generate thermal stress. Bending tests simulate these scenarios to check the structural strength of the PCB and whether it can function normally under specified bending degrees and cycles.

[0003] In actual testing, the test panel is placed on two supports, and its static and dynamic pressure resistance is tested by continuous or intermittent impacts from the indenter. However, in the dynamic pressure resistance test, due to repeated and continuous impacts, the test panel will undergo a certain degree of displacement, resulting in different impact points and thus changing the quantitative results, affecting the objectivity of the test results. In addition, the testing platform is open, and its testing environment is subject to interference from the external environment, with temperature, humidity, and other variables being variables, further affecting the test results due to subtle variables. In summary, there is room for technical improvement. Utility Model Content

[0004] This invention aims to solve the aforementioned technical problem that test results are easily affected by subtle variables, and provides a circuit board bending test device.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a circuit board bending test device, including a worktable, a pressure head is movably provided above the middle of the worktable; a back plate is provided on the worktable and near the rear end, a top plate is provided at the upper end of the back plate, and the pressure head and its driving components are located at the lower end of the top plate.

[0006] A glass frame surrounds the top plate and the workbench, and the top plate is provided with an inlet and an outlet.

[0007] A rectangular groove is provided in the middle of the worktable, and the rectangular groove corresponds to the pressure head; a limiting component is provided on the worktable and on both sides of the rectangular groove, and the limiting component includes a limiting pressure plate that can be hinged and pressed on the worktable.

[0008] Furthermore, the glass frame includes a fixed glass panel and a movable glass panel on the front.

[0009] Furthermore, both the inlet and outlet can be threaded with cover plates.

[0010] Furthermore, a storage compartment is provided below the workbench, and the storage compartment is hollow inside and extends through to the top.

[0011] Furthermore, two sets of mounting plates are provided under the workbench and near both sides, and bidirectional threaded rods are rotatably provided between the opposing mounting plates. A motor capable of driving the bidirectional threaded rods to rotate is provided on the outer side of one of the mounting plates.

[0012] Each of the two-way threaded rods has a nut block threadedly connected to its outer side. The upper end of each nut block extends out of a worktable and is connected to a corresponding limiting component. The worktable is provided with a strip groove that can slide with the nut block.

[0013] Furthermore, the limiting component also includes a base plate, on which an electric push rod is provided. The output end of the electric push rod is rotatably provided with a cross frame, and the end of the cross frame is fixedly connected to the limiting pressure plate. An H-frame is rotatably provided below the cross frame, and a fixed seat fixedly connected to the base plate is rotatably provided at the lower end of the H-frame.

[0014] Furthermore, the output end of the electric push rod is provided with a push plate, and the front and rear sides of the push plate are provided with pins. The crossbar is provided with a sliding groove that can slide and connect with the pins.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] By using symmetrically movable limiting components, the two ends of the plate to be tested are limited and pressed, making it less prone to displacement during impact testing, ensuring that the pressure head always acts in the same position, and reducing unnecessary variables.

[0017] It is equipped with an enclosed glass frame, which can form a relatively closed operating space. By introducing hot or cold air or steam into it, the temperature of the internal operating space can be changed and maintained. While reducing variables, it can provide variables for comparison when needed, thereby improving the objectivity and accuracy of the detection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the glass frame structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the workbench structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the base plate and nut block structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the H-frame structure of this utility model.

[0024] As shown in the figure: 1. Workbench, 2. Back plate, 3. Top plate, 4. Glass frame, 5. Inlet, 6. Outlet, 7. Storage compartment, 8. Rectangular groove, 9. Limiting pressure plate, 10. Mounting plate, 11. Threaded rod, 12. Motor, 13. Nut block, 14. Strip groove, 15. Base plate, 16. Electric push rod, 17. Cross frame, 18. H-frame, 19. Fixed seat, 20. Push plate, 21. Slide. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Example 1, in conjunction with Appendix Figure 1 A circuit board bending test device includes a worktable 1, with a pressure head movable above the middle of the worktable 1 to perform impact bending tests on the board to be tested; a back plate 2 is provided on the worktable 1 near the rear end, and a top plate 3 is provided on the upper end of the back plate 2. The pressure head and its driving components are located at the lower end of the top plate 3. A rectangular groove 8 is provided in the middle of the upper part of the worktable 1, and the rectangular groove 8 corresponds to the pressure head; the back plate 2 and the top plate 3 can support the pressure head and its driving components.

[0027] In addition, a storage compartment 7 is provided under the workbench 1. The storage compartment 7 is hollow inside and has a through top. Defective boards can be directly put into the storage compartment 7 for collection after testing and then processed in a unified manner.

[0028] On the workbench 1, symmetrically movable limiting components are provided on both sides of the rectangular groove 8. Specifically, two sets of mounting plates 10 are provided below the workbench 1 and near both sides. A bidirectional threaded rod 11 is rotatably provided between the opposing mounting plates 10. A motor 12 that can drive the bidirectional threaded rod 11 to rotate is provided on the outer side of one of the mounting plates 10. A nut block 13 is threadedly connected to the outer side of the bidirectional threaded rod 11. The upper end of the nut block 13 extends out of the workbench 1 and is connected to the corresponding limiting component. A strip groove 14 that can slide with the nut block 13 is provided on the workbench 1. Thus, in the above structure, by using an external controller to make the two motors 12 of the same model work simultaneously, the bidirectional threaded rod 11 can be driven to rotate synchronously, causing the limiting components to move relative to or away from each other until they reach the plate to be tested.

[0029] Based on the above structure, the limiting component includes a limiting pressure plate 9 that can be hinged and pressed onto the worktable 1; the limiting component also includes a base plate 15, on which an electric push rod 16 is provided, and a cross frame 17 is rotatably provided at the output end of the electric push rod 16, with the end of the cross frame 17 fixedly connected to the limiting pressure plate 9; an H frame 18 is rotatably provided below the cross frame 17, and a fixed seat 19 fixedly connected to the base plate 15 is rotatably provided at the lower end of the H frame 18; thus, in the above structure, when the limiting pressure plate 9 of the limiting component reaches the plate to be tested, the electric push rod 16 operates, causing the cross frame 17 to tilt. Under the restriction of the H frame 18 and the fixed plate 19, the limiting pressure plate 9 will rotate around the connection between the output end of the electric push rod 16 and the cross frame 17 until the plate to be tested is pressed down and fixed. At this time, when a bending test is performed, the plate is not easy to move, and the limiting effect is good.

[0030] In addition, the output end of the electric push rod 16 is provided with a push plate 20, and the front and rear sides of the push plate 20 are provided with pins. The cross frame 17 is provided with a sliding groove 21 that can slide with the pins. The sliding groove 21 allows the pins to make slight displacement while rotating, avoiding the problem that the cross frame 17 and the limiting pressure plate 9 cannot rotate because the pins and H frame 18 are simultaneously limited.

[0031] In embodiment two, referring to the accompanying drawings, a glass frame 4 is provided between the top plate 3 and the workbench 1. The top plate 3 is provided with an inlet 5 and an outlet 6. The glass frame 4 includes a fixed glass panel and a movable glass panel on the front. Both the inlet 5 and the outlet 6 can be threaded with cover plates on their outer sides. External hot or cold air or steam source equipment can be connected through the inlet 5 and the outlet 6, which can change and maintain the temperature of the internal operating space. While reducing variables, variables can be provided for comparison when needed, thereby improving the objectivity and accuracy of the detection.

[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A circuit board bending test device, comprising a worktable (1), wherein a pressure head is movable above the middle end of the worktable (1); characterized in that: The workbench (1) is provided with a back plate (2) near the rear end, and a top plate (3) is provided at the upper end of the back plate (2). The pressure head and its driving components are located at the lower end of the top plate (3). A glass frame (4) surrounds the top plate (3) and the workbench (1), and an inlet (5) and an outlet (6) are connected on the top plate (3); The worktable (1) has a rectangular groove (8) at the middle, which corresponds to the pressure head; the worktable (1) is provided with limiting components that move symmetrically on both sides of the rectangular groove (8), and the limiting components include limiting pressure plates (9) that can be hinged and pressed on the worktable (1).

2. The circuit board bending test device according to claim 1, characterized in that: The glass frame (4) includes a fixed glass panel and a movable glass panel on the front.

3. The circuit board bending test device according to claim 1, characterized in that: Both the inlet (5) and outlet (6) can be threaded with cover plates on their outer sides.

4. The circuit board bending test device according to claim 1, characterized in that: The workbench (1) is provided with a storage compartment (7) underneath, the storage compartment (7) is hollow inside and has a through top.

5. The circuit board bending test device according to claim 1, characterized in that: The workbench (1) is provided with two sets of mounting plates (10) below and near both sides. The mounting plates (10) are rotatably provided with bidirectional threaded rods (11). One of the mounting plates (10) is provided with a motor (12) on the outside of the mounting plate (10) that can drive the bidirectional threaded rods (11) to rotate. The outer side of each bidirectional threaded rod (11) is threaded with a nut block (13), and the upper end of each nut block (13) extends out of the worktable (1) and is connected to the corresponding limiting component; the worktable (1) is provided with a strip groove (14) that can slide with the nut block (13).

6. The circuit board bending test device according to claim 5, characterized in that: The limiting assembly also includes a base plate (15), on which an electric push rod (16) is provided. The output end of the electric push rod (16) is rotatably provided with a cross frame (17), and the end of the cross frame (17) is fixedly connected to the limiting pressure plate (9). An H frame (18) is rotatably provided below the cross frame (17), and a fixed seat (19) fixedly connected to the base plate (15) is rotatably provided at the lower end of the H frame (18).

7. The circuit board bending test device according to claim 6, characterized in that: The output end of the electric push rod (16) is provided with a push plate (20), and the front and rear sides of the push plate (20) are provided with pins. The cross frame (17) is provided with a sliding groove (21) that can slide and connect with the pins.

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