Positioning device for PCB circuit board compression detection

Abstract

The utility model relates to PCB circuit board detection technical field especially relates to a kind of positioning device for PCB circuit board pressure resistance detection.The technical scheme comprising bottom plate and the positioning mechanism of being set to the top of bottom plate, the positioning mechanism includes the fixed support being fixed to the top of bottom plate, the inner wall of fixed support is fixedly connected with multiple limit blocks, and the inner wall of fixed support is equipped with inner groove, the inner wall of multiple limit blocks is all equipped with sliding slot, and the bottom of multiple limit blocks is all fixedly connected with supporting plate, and the inner wall of the sliding slot of both sides is all slidably connected with side support plate by sliding block.The utility model positioning device for PCB circuit board pressure resistance detection, accurate positioning and stable clamping are carried out to PCB circuit board, guarantee the accuracy and reliability of detection result, and the stress direction of PCB circuit board in detection process can be flexibly adjusted, and the pressure that circuit board can be better simulated in different angles in actual use scene.

Description

Technical Field

[0001] This utility model relates to the field of PCB circuit board testing technology, and in particular to a positioning device for PCB circuit board pressure resistance testing. Background Technology

[0002] In the manufacturing process of PCB circuit boards, compressive strength is one of the important indicators for measuring their quality. Compressive strength testing can effectively verify the structural stability and electrical performance retention of PCB circuit boards under pressure, which is crucial for ensuring the normal operation and lifespan of electronic products. Traditional PCB circuit board compressive strength testing positioning methods use simple clamps or manual placement to position the PCB circuit boards. This method is difficult to guarantee the accurate positioning of the circuit board during the testing process. Since PCB circuit boards come in various sizes and specifications, and their surfaces are usually covered with complex circuits and components, simple clamps cannot be adapted to circuit boards of different shapes and sizes, which can easily lead to the circuit board shifting or tilting during testing. Furthermore, it is impossible to adjust the force direction of the circuit board according to its different shapes and sizes, affecting the test structure. Therefore, this application proposes a positioning device for PCB circuit board compressive strength testing. Utility Model Content

[0003] The purpose of this invention is to address the problem in the prior art that the circuit board cannot be adjusted according to its different shapes and sizes, which affects the test results, and to propose a positioning device for PCB circuit board pressure resistance testing.

[0004] The technical solution of this utility model: A positioning device for PCB circuit board pressure resistance testing, including a base plate and a positioning mechanism disposed on the top of the base plate. The positioning mechanism includes a fixed bracket fixed to the top of the base plate. Multiple limiting blocks are fixedly connected to the inner wall of the fixed bracket, and an inner groove is opened in the inner wall of the fixed bracket. A sliding groove is opened in the inner wall of each of the multiple limiting blocks, and a support plate is fixedly connected to the bottom of each of the multiple limiting blocks. Side support plates are slidably connected to the inner walls of the sliding grooves on both sides through sliders.

[0005] A rotating structure is provided on one side of each of the two side support plates;

[0006] Fixing mechanisms are provided on the inner walls of the sliding grooves on the other two sides.

[0007] Optionally, the rotating structure includes a connecting rod passing through the center of the two side support plates, with a fixed bracket passing through one end of the two connecting rods away from the side support plates, and a spring sleeved on the outer wall of the two connecting rods between the side support plates and the fixed bracket.

[0008] Optionally, the outer walls of the two connecting rods are fixedly connected to a rotating shaft on one side of the fixed bracket. Two limiting seats pass through one end of the outer walls of the two rotating shafts, and the bottom ends of the two limiting seats are fixedly connected to the top of the base plate by a bottom fixing block.

[0009] Optionally, a support frame is rotatably connected to one end of the two rotating shafts away from the two limiting seats, and one side of the bottom end of the support frame is fixedly connected to the outer wall of the base plate.

[0010] Optionally, the fixing mechanism includes a fixing plate slidably connected to the inner wall of the sliding groove on both sides, and the rear ends of both fixing plates are rotatably connected to threaded rods.

[0011] Optionally, a knob is fixedly connected to one end of each of the two threaded rods away from the fixed plate, and a fixed bracket is threaded through the outer wall of each of the two threaded rods.

[0012] Optionally, the bottom end of the base plate is fixedly connected with multiple bottom bearing rods at equal intervals, and the number of the multiple bottom bearing rods is four.

[0013] Compared with the prior art, this application includes at least one of the following beneficial technical effects: Through the synergistic effect of the limiting block, side support plate and fixing plate, this device can accurately position and firmly clamp the PCB circuit board from multiple directions, ensuring the accuracy and reliability of the test results. The design of the rotating structure allows the device to flexibly adjust the force direction of the PCB circuit board during the test process, better simulate the pressure that the circuit board may be subjected to at different angles in actual use scenarios, meet diverse test needs, and help to more comprehensively and accurately evaluate the compressive strength of the PCB circuit board. Attached Figure Description

[0014] Figure 1 A three-dimensional structural schematic diagram of a positioning device for testing the compressive strength of a PCB circuit board;

[0015] Figure 2 A multi-angle three-dimensional structural diagram of a positioning device for PCB circuit board compressive strength testing;

[0016] Figure 3 A schematic diagram of the fixing frame connection structure of a positioning device for PCB circuit board compressive strength testing;

[0017] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0018] Reference numerals in the attached drawings: 1. Base plate; 2. Bottom bearing rod; 3. Inner groove; 4. Fixed bracket; 5. Limiting block; 6. Sliding groove; 7. Slider; 8. Fixed plate; 9. Threaded rod; 10. Knob; 11. Side support plate; 12. Connecting rod; 13. Support frame; 14. Rotating shaft; 15. Bottom fixing block; 16. Limiting seat; 17. Support plate. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0020] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0021] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model proposes a positioning device for PCB circuit board pressure resistance testing, including a base plate 1 and a positioning mechanism disposed at the top of the base plate 1. The positioning mechanism includes a fixed bracket 4 fixed to the top of the base plate 1. Multiple limiting blocks 5 are fixedly connected to the inner wall of the fixed bracket 4, and an inner groove 3 is formed in the inner wall of the fixed bracket 4. Sliding grooves 6 are formed in the inner walls of the multiple limiting blocks 5, and a support plate 17 is fixedly connected to the bottom end of each of the multiple limiting blocks 5. Side support plates 11 are slidably connected to the inner walls of the sliding grooves 6 on both sides through sliders 7. Multiple bottom bearing rods 2 are fixedly connected at equal intervals to the bottom end of the base plate 1. The number of bottom bearing rods 2 is four. By setting the base plate 1 to be made of high-strength and high-rigidity metal material, it serves as the basic support component of the entire positioning device, which can provide support for the positioning mechanism and the PCB being tested. The circuit board provides a stable support platform. Four bottom pressure-bearing rods 2, evenly spaced and fixedly connected to the bottom of the base plate 1, further enhance the stability and pressure resistance of the device. The bottom pressure-bearing rods 2 can evenly distribute pressure during the testing process, preventing deformation of the base plate 1 and ensuring that the positioning device remains stable under high pressure. This provides a reliable foundation for the pressure resistance testing of the PCB circuit board. The fixed bracket 4 is vertically fixed to the top of the base plate 1 and is composed of a sturdy metal frame. It provides installation support for components such as the limiting blocks 5 and the side support plates 11. The inner groove 3 opened in the inner wall of the fixed bracket 4 provides space for the placement of the PCB circuit board. Multiple limiting blocks 5 are fixedly connected to the inner wall of the fixed bracket 4 and are evenly distributed around the inner groove 3. The inner wall of the limiting blocks 5 has sliding grooves 6, which provide guide tracks for the sliding of the side support plates 11 and the fixed plate 8. At the same time, the limiting blocks 5 can also play a preliminary limiting role for the PCB circuit board, preventing the circuit board from shifting significantly during placement. The support plate 17 fixedly connected to the bottom of the multiple limiting blocks 5 is used to support the PCB. During the pressure test, the support plate 17 evenly transmits pressure to the bottom of the PCB circuit board, preventing damage due to uneven local stress and helping to keep the circuit board in a horizontal position to ensure the accuracy of the test results.

[0027] It should be added that, such as Figure 1 , Figure 3 and Figure 4 As shown, a rotating structure is provided on one side of each of the two side support plates 11. The rotating structure includes connecting rods 12 passing through the center of the two side support plates 11. The ends of the two connecting rods 12 away from the side support plates 11 are connected to fixed brackets 4. Springs are sleeved on the outer walls of the two connecting rods 12 between the side support plates 11 and the fixed brackets 4. By setting the side support plates 11 to slide in the sliding grooves 6, the side support plates 11 can be used to adjust their position from the side to clamp the PCB. The circuit board uses springs with a certain degree of elasticity. When the circuit board is clamped by the side support plate 11, the springs are compressed to generate elastic force, allowing the side support plate 11 to fit tightly against the side of the circuit board. The clamping force is automatically adjusted according to the thickness of the circuit board to ensure a firm clamping without excessive pressure on the circuit board. Two connecting rods 12 have rotating shafts 14 fixedly connected to the outer walls of the two connecting rods 12 on one side of the fixed bracket 4. Two limiting seats 16 pass through one end of the outer walls of the two rotating shafts 14. The bottom ends of the two limiting seats 16 are fixedly connected to the top of the base plate 1 via bottom fixing blocks 15. A support frame 13 is rotatably connected to the end of the two rotating shafts 14 away from the two limiting seats 16. One side of the bottom end of the support frame 13 is fixedly connected to the outer wall of the base plate 1. The limiting seats 16 limit and support the rotating shafts 14, ensuring stability during rotation. This is crucial for PCB manufacturing. During circuit board compression testing, in addition to facilitating the loading and unloading of the circuit board by opening and closing the side support plate 11, the rotating support frame 13 can also drive the rotating shaft 14 and connecting rod 12 to rotate, thereby causing the side support plate 11 to drive the PCB circuit board to rotate around the rotating shaft 14. In this way, the force direction of the PCB circuit board during the testing process can be flexibly adjusted, better simulating the pressure that the circuit board may be subjected to at different angles in actual use scenarios, meeting diverse testing needs, and helping to more comprehensively and accurately evaluate the compression performance of the PCB circuit board. Furthermore, during the rotation adjustment process, the spring always maintains the elastic force on the side support plate 11, ensuring that the circuit board is still firmly clamped in the new position.

[0028] In addition, such as Figure 1 , Figure 2 and Figure 3As shown, a fixing mechanism is provided on the inner wall of the sliding groove 6 on the other two sides. The fixing mechanism includes a fixing plate 8 slidably connected to the inner wall of the sliding groove 6 on the other two sides. The rear ends of the two fixing plates 8 are rotatably connected to threaded rods 9. The ends of the two threaded rods 9 away from the fixing plates 8 are fixedly connected to knobs 10. The outer walls of the two threaded rods 9 are threaded through the fixing brackets 4. The fixing plates 8 are used to further fix the PCB circuit board from the other two sides. By rotating the knobs 10, the threaded rods 9 can be rotated. Since the threaded rods 9 are threadedly connected to the fixing brackets 4, the rotation of the threaded rods 9 will be converted into linear movement of the fixing plates 8 in the sliding groove 6. The operator can adjust the knobs 10 according to the size of the PCB circuit board to make the fixing plates 8 fit tightly against the side of the circuit board, so as to achieve precise fixing of the circuit board and ensure that the circuit board will not be displaced during the pressure test. Even when the force direction is adjusted by rotating the structure, it can maintain the stability of the circuit board together with the side support plates 11.

[0029] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A positioning device for pressure resistance testing of PCB circuit boards, comprising a base plate (1) and a positioning mechanism disposed at the top of the base plate (1), characterized in that: The positioning mechanism includes a fixed bracket (4) fixed to the top of the base plate (1). Multiple limiting blocks (5) are fixedly connected to the inner wall of the fixed bracket (4). An inner groove (3) is opened on the inner wall of the fixed bracket (4). A sliding groove (6) is opened on the inner wall of the multiple limiting blocks (5). A support plate (17) is fixedly connected to the bottom of the multiple limiting blocks (5). A side support plate (11) is slidably connected to the inner wall of the sliding groove (6) on both sides through a slider (7). A rotating structure is provided on one side of each of the two side support plates (11); A fixing mechanism is provided on the inner wall of the sliding groove (6) on the other two sides.

2. The positioning device for PCB circuit board compressive strength testing according to claim 1, characterized in that, The rotating structure includes a connecting rod (12) passing through the center of the two side support plates (11). The ends of the two connecting rods (12) away from the side support plates (11) are connected by a fixed bracket (4). The outer walls of the two connecting rods (12) are fitted with springs between the side support plates (11) and the fixed bracket (4).

3. The positioning device for PCB circuit board compressive strength testing according to claim 2, characterized in that, The outer walls of the two connecting rods (12) are fixedly connected to the rotating shafts (14) on one side of the fixed bracket (4). Two limiting seats (16) pass through one end of the outer wall of the two rotating shafts (14). The bottom ends of the two limiting seats (16) are fixedly connected to the top of the base plate (1) through the bottom fixing block (15).

4. The positioning device for PCB circuit board compressive strength testing according to claim 3, characterized in that, The two rotating shafts (14) are rotatably connected to a support frame (13) at one end away from the two limiting seats (16), and one side of the bottom end of the support frame (13) is fixedly connected to the outer wall of the base plate (1).

5. The positioning device for PCB circuit board compressive strength testing according to claim 1, characterized in that, The fixing mechanism includes a fixing plate (8) slidably connected to the inner wall of the sliding groove (6) on both sides, and the rear ends of the two fixing plates (8) are rotatably connected to threaded rods (9).

6. A positioning device for PCB circuit board compressive strength testing according to claim 5, characterized in that, A knob (10) is fixedly connected to one end of each of the two threaded rods (9) away from the fixed plate (8), and a fixed bracket (4) is threaded through the outer wall of each of the two threaded rods (9).

7. A positioning device for PCB circuit board compressive strength testing according to claim 1, characterized in that, The bottom end of the base plate (1) is fixedly connected with multiple bottom bearing rods (2) at equal intervals, and the number of the multiple bottom bearing rods (2) is four.

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