Support device for detecting a circuit board

Abstract

The utility model relates to circuit board detection technical field discloses a kind of supporting device for circuit board detection, including the first support plate for supporting one side circuit board, the inner chamber of first support plate is provided with telescopic mechanism for adjusting the spacing between two sides circuit board, the upper side of the end of telescopic mechanism away from first support plate is provided with the third support plate for supporting the other side circuit board, the side of first support plate and second support plate relative is provided with the fixed component for fixing circuit board, pass through synchronous belt transmission movement, reduce vibration impact, guarantee stable and smooth operation. The sliding fit of telescopic bottom column and movable column, in combination with movable column inner chamber multiple sets of symmetrical positioning groove, realize the flexible adjustment of the spacing between two sides circuit board. The cooperation of spring and positioning rod can be quickly clamped into positioning groove after adjustment to complete fixation, convenient operation and firm positioning, can accurately adapt to the demand of different detection scenarios on circuit board spacing, improve the practicability and detection efficiency of device.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing technology, specifically to a support device for circuit board testing. Background Technology

[0002] Circuit boards are named as follows: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board (copper etching technology), etc. Circuit boards make circuits miniaturized and intuitive, playing an important role in the mass production of fixed circuits and the optimization of electrical appliance layout.

[0003] For example, CN212553513U discloses a support device for testing automotive electronic circuit boards, including a base plate and a C-shaped support rod. The top surface of the base plate is fixedly connected to the C-shaped support rod, and the horizontal section of the C-shaped support rod is slidably connected to two clamping connectors. This invention can firmly clamp automotive electronic circuit boards by providing a clamping assembly. The arc-shaped elastic plate contacts and clamps the circuit board on both sides, preventing external forces from damaging the contact parts of the circuit board, ensuring the service life of the circuit board, avoiding losses, and increasing safety in use. This invention also features a rotatably connected third connecting rod, which can be rotated at any time during testing to adjust the angle between the circuit board and the inspector, facilitating maintenance.

[0004] However, traditional circuit board support devices often suffer from insufficient adaptability. Most devices have a fixed support spacing, which cannot be adjusted according to different circuit board sizes. At the same time, traditional fixing structures often use rigid clamping methods, which can easily cause crush damage to the edges of the circuit board or components, and the fixing stability is poor. Therefore, those skilled in the art provide a support device for circuit board inspection to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide a support device for circuit board testing, which solves the problem that existing circuit board support devices often have insufficient adaptability, and most devices have a fixed support spacing, which cannot be adapted to different circuit board sizes.

[0006] The present invention provides the following technical solution: a support device for circuit board testing, comprising a first support plate for supporting a circuit board on one side, a telescopic mechanism for adjusting the distance between the circuit boards on both sides is provided in the inner cavity of the first support plate, a third support plate for supporting a circuit board on the other side is provided on the upper side of the telescopic mechanism away from the first support plate, and a fixing component for fixing the circuit board is provided on the side opposite to the first support plate and the second support plate.

[0007] As a preferred embodiment of the above technical solution, the telescopic mechanism includes a first connecting column, which is fixedly connected to the upper side of the inner cavity of the first support plate. A synchronous belt is slidably connected to the side of the first connecting column away from the first support plate, and a movable disc is rotatably connected to the inner cavity of the synchronous belt.

[0008] As a preferred embodiment of the above technical solution, the two sides of the movable disk are rotatably connected to a second connecting column, the side of the second connecting column away from the movable disk is slidably connected to a telescopic bottom column, the outer side of the telescopic bottom column is slidably connected to a movable column, and the inner cavity of the movable column is provided with several sets of symmetrically arranged positioning grooves.

[0009] As a preferred embodiment of the above technical solution, a second support plate is fixedly connected to the center of the outer surface of the movable column, and a third connecting column is fixedly connected to both sides of the second support plate. A fourth connecting column is rotatably connected between the two sets of symmetrically arranged third connecting columns.

[0010] As a preferred embodiment of the above technical solution, a spring is fixedly connected to the lower side of one end of the fourth connecting column, and the fourth connecting column is fixedly connected to the outer surface of the movable column through the spring. A positioning rod is fixedly connected to the lower side of the fourth connecting column away from the spring, and the inner diameter of the positioning rod and the positioning groove are the same.

[0011] As a preferred embodiment of the above technical solution, the fixing component includes a support column, which is fixedly connected to one side of the third support plate. A magnetorheological fluid placement column is fixedly connected to the inner cavity of the support column. The magnetorheological fluid placement column is fixedly connected to the end of the third support plate near the support column. A fifth connecting column is fixedly connected to the end of the support column away from the third support plate. A suction cup is fixedly connected to the end of the fifth connecting column away from the support column.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention features a telescopic mechanism. The sliding engagement of the first connecting column and the synchronous belt drives the movable disc to rotate. This rotation drives the second connecting columns on both sides, allowing the telescopic base column to slide within the movable column for initial length adjustment. During adjustment, the fourth connecting column is moved, stretching the spring and disengaging the positioning rod from its positioning slot. Once the movable column reaches the target position, the fourth connecting column is released, and the spring force causes the positioning rod to engage with the corresponding positioning slot for fixation. The synchronous belt reduces vibration and impact, ensuring stable operation. The sliding engagement of the telescopic base column and the movable column, combined with multiple positioning slots, allows for flexible spacing adjustment. The cooperation between the spring and the positioning rod enables rapid and accurate positioning, providing convenient operation and secure fixation. This effectively meets the adjustment requirements for the spacing between circuit boards on both sides under different testing scenarios.

[0014] Based on the aforementioned beneficial effects, this utility model is equipped with a fixing component. The support column is fixed to one side of the third support plate. The magnetorheological fluid placement column in its inner cavity can change the rigidity of the support column by adjusting the properties of the magnetorheological fluid through a magnetic field. The other end of the support column is connected to a suction cup via a fifth connecting column, which directly contacts the circuit board. Fixing is achieved by using the suction force of the suction cup. The adjustment of the properties of the magnetorheological fluid allows the support column to adapt to circuit boards of different thicknesses and materials, avoiding damage from rigid contact. The suction cup firmly fixes the circuit board through gentle adsorption, preventing positional displacement during testing from affecting accuracy. The operation is simple and the fixing effect is reliable, effectively ensuring the stability and safety of the circuit board testing process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a support device for circuit board testing.

[0016] Figure 2 A schematic diagram of the first connecting column of the telescopic mechanism of a support device for circuit board testing;

[0017] Figure 3 A schematic diagram of the fourth connecting column of a telescopic mechanism for a support device for circuit board testing;

[0018] Figure 4 This is a schematic diagram of the connection of a magnetorheological fluid placement column, which is a fixing component of a support device for circuit board testing.

[0019] In the diagram: 1. First support plate; 2. Telescopic mechanism; 21. First connecting column; 22. Synchronous belt; 23. Movable disc; 24. Second connecting column; 25. Telescopic base column; 26. Movable column; 27. Positioning groove; 28. Second support plate; 29. ​​Third connecting column; 210. Fourth connecting column; 211. Spring; 212. Positioning rod; 3. Third support plate; 4. Fixing assembly; 41. Support column; 42. Magnetorheological fluid placement column; 43. Fifth connecting column; 44. Suction cup. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figures 1-4 As shown, this utility model provides a technical solution: a support device for circuit board testing, including a first support plate 1 for supporting one side of the circuit board, a telescopic mechanism 2 for adjusting the distance between the two circuit boards in the inner cavity of the first support plate 1, a third support plate 3 for supporting the other side of the circuit board on the upper side of the telescopic mechanism 2 away from the first support plate 1, and a fixing component 4 for fixing the circuit board on the opposite side of the first support plate 1 and the second support plate 28.

[0022] The distance between the two circuit boards can be flexibly adjusted by the telescopic mechanism 2 to meet the requirements of circuit board spacing in different testing scenarios. The fixing component 4 can ensure that the circuit board remains stable during the testing process, avoiding the impact of position movement on the testing accuracy, and greatly improving the practicality and testing efficiency of the device.

[0023] As one implementation method in this embodiment, please refer to Figures 1-2 As shown, the telescopic mechanism 2 includes a first connecting column 21, which is fixedly connected to the upper side of the inner cavity of the first support plate 1. A synchronous belt 22 is slidably connected to the side of the first connecting column 21 away from the first support plate 1, and a movable disc 23 is rotatably connected to the inner cavity of the synchronous belt 22.

[0024] The synchronous belt 22 can smoothly transmit the movement of the first connecting column 21 to the movable plate 23, reducing vibration and impact during the movement. The rotation of the movable plate 23 can provide a flexible power source for the subsequent movement of the second connecting column 24, ensuring the stability and smooth operation of the telescopic mechanism 2.

[0025] As one implementation method in this embodiment, please refer to Figures 1-2 As shown, the two sides of the movable plate 23 are rotatably connected to the second connecting column 24. The side of the second connecting column 24 away from the movable plate 23 is slidably connected to the telescopic bottom column 25. The outer side of the telescopic bottom column 25 is slidably connected to the movable column 26. The inner cavity of the movable column 26 is provided with several sets of symmetrically arranged positioning grooves 27.

[0026] The second connecting column 24 converts the rotation of the movable plate 23 into the sliding of the telescopic base column 25. By sliding the telescopic base column 25 within the movable column 26, the initial adjustment of the length of the telescopic mechanism 2 is achieved. The positioning groove 27 provides multiple selectable positions for the subsequent positioning rod 212, increasing the flexibility and accuracy of the telescopic adjustment.

[0027] As one implementation method in this embodiment, please refer to Figures 1-3 As shown, a second support plate 28 is fixedly connected to the center of the outer surface of the movable column 26, and a third connecting column 29 is fixedly connected to both sides of the second support plate 28. A fourth connecting column 210 is rotatably connected between the two sets of symmetrically arranged third connecting columns 29.

[0028] The second support plate 28 provides a stable installation base for the third connecting column 29. The rotatable connection between the third connecting column 29 and the fourth connecting column 210 allows the fourth connecting column 210 to rotate around the third connecting column 29, providing an adjustable movement trajectory for the cooperation between the positioning rod 212 and the positioning groove 27, making it easy to operate the positioning rod 212 to position the movable column 26.

[0029] As one implementation method in this embodiment, please refer to Figures 1-3As shown, a spring 211 is fixedly connected to the lower side of one end of the fourth connecting post 210, and the fourth connecting post 210 is fixedly connected to the outer surface of the movable post 26 through the spring 211. A positioning rod 212 is fixedly connected to the lower side of the end of the fourth connecting post 210 away from the spring 211, and the inner diameter of the positioning rod 212 and the positioning groove 27 are the same.

[0030] Spring 211 provides elastic reset for the fourth connecting post 210. When the length of the telescopic mechanism 2 needs to be adjusted, the fourth connecting post 210 is moved to disengage the positioning rod 212 from the positioning groove 27. Spring 211 is stretched or compressed. After adjustment, the fourth connecting post 210 is released. Under the elastic force of spring 211, the positioning rod 212 can automatically engage in the corresponding positioning groove 27, achieving rapid positioning of the movable post 26. The operation is convenient and the positioning is firm.

[0031] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, the fixing component 4 includes a support column 41, which is fixedly connected to one side of the third support plate 3. A magnetorheological fluid placement column 42 is fixedly connected to the inner cavity of the support column 41. The magnetorheological fluid placement column 42 is fixedly connected to the end of the third support plate 3 near the support column 41. A fifth connecting column 43 is fixedly connected to the end of the support column 41 away from the third support plate 3. A suction cup 44 is fixedly connected to the end of the fifth connecting column 43 away from the support column 41.

[0032] The magnetorheological fluid in the placement column 42 can change its rheological properties under the action of a magnetic field, thereby adjusting the rigidity of the support column 41. This allows the suction cup 44 to adapt to circuit boards of different thicknesses and materials. The suction cup 44 then fixes the circuit board through adsorption. The fixing method is gentle and will not damage the circuit board, while ensuring the stability of the circuit board during the testing process.

[0033] Working principle: When using this circuit board testing support device, firstly, place the two circuit boards to be tested on the first support plate 1 and the third support plate 3 respectively. For the fixing component 4, by controlling the magnetic field environment of the magnetorheological fluid in the magnetorheological fluid placement column 42, the rigidity of the support column 41 is changed, so that the suction cup 44 can tightly adhere to the surface of the circuit board. The suction force of the suction cup 44 is used to fix the circuit board on the first support plate 1 and the third support plate 3, preventing the circuit board from moving during the testing process. When it is necessary to adjust the distance between the two circuit boards, operate the telescopic mechanism 2. Move the fourth connecting column 210. Since the fourth connecting column 210 is rotatably connected to the third connecting column 29, the fourth connecting column 210 will rotate around the third connecting column 29. At this time, the spring 211 at one end of the fourth connecting column 210 is stretched, and the positioning rod 212 at the other end disengages from the positioning groove 27 of the movable column 26. Then, push or pull the movable column 26, which slides relative to the telescopic base column 25. At the same time, the movable disc 23 rotates with the movement of the first connecting column 21 under the action of the synchronous belt 22. The rotation of the movable disc 23 drives the second connecting column 24 to move, thereby causing the telescopic base column 25 to slide within the movable column 26, thus realizing the adjustment of the length of the telescopic mechanism 2. When the appropriate distance is adjusted, release the fourth connecting column 210. Under the elastic force of the spring 211, the fourth connecting column 210 rotates in the opposite direction, causing the positioning rod 212 to re-engage in the corresponding positioning groove 27 on the movable column 26. Since the inner diameter of the positioning rod 212 and the positioning groove 27 are the same, the positioning rod 212 can be firmly engaged in the positioning groove 27, fixing the position of the movable column 26, thereby completing the adjustment of the distance between the two circuit boards. At this time, the circuit board can be tested.

[0034] 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 support device for circuit board testing, characterized in that: The first support plate (1) is used to support one side of the circuit board. The inner cavity of the first support plate (1) is provided with a telescopic mechanism (2) for adjusting the distance between the two circuit boards. The upper side of the telescopic mechanism (2) away from the first support plate (1) is provided with a third support plate (3) for supporting the other side of the circuit board. The fixing component (4) for fixing the circuit board is provided on the side opposite to the first support plate (1) and the second support plate (28).

2. The support device for circuit board testing according to claim 1, characterized in that: The telescopic mechanism (2) includes a first connecting column (21), which is fixedly connected to the upper side of the inner cavity of the first support plate (1). A synchronous belt (22) is slidably connected to the side of the first connecting column (21) away from the first support plate (1). A movable disc (23) is rotatably connected to the inner cavity of the synchronous belt (22).

3. The support device for circuit board testing according to claim 2, characterized in that: The movable disc (23) is rotatably connected to the two sides of the second connecting column (24). The second connecting column (24) is slidably connected to the telescopic bottom column (25) on the side away from the movable disc (23). The telescopic bottom column (25) is slidably connected to the outer side of the movable column (25) and the inner cavity of the movable column (26) is provided with several sets of symmetrically arranged positioning grooves (27).

4. The support device for circuit board testing according to claim 3, characterized in that: A second support plate (28) is fixedly connected to the center of the outer surface of the movable column (26), and a third connecting column (29) is fixedly connected to both sides of the second support plate (28). A fourth connecting column (210) is rotatably connected between the two sets of symmetrically arranged third connecting columns (29).

5. A support device for circuit board testing according to claim 4, characterized in that: A spring (211) is fixedly connected to the lower side of one end of the fourth connecting post (210), and the fourth connecting post (210) is fixedly connected to the outer surface of the movable post (26) through the spring (211). A positioning rod (212) is fixedly connected to the lower side of the end of the fourth connecting post (210) away from the spring (211), and the inner diameter of the positioning rod (212) and the positioning groove (27) are the same.

6. The support device for circuit board testing according to claim 1, characterized in that: The fixing component (4) includes a support column (41), which is fixedly connected to one side of the third support plate (3). A magnetorheological fluid placement column (42) is fixedly connected to the inner cavity of the support column (41). The magnetorheological fluid placement column (42) is fixedly connected to one end of the third support plate (3) near the support column (41). A fifth connecting column (43) is fixedly connected to one end of the support column (41) away from the third support plate (3). A suction cup (44) is fixedly connected to one end of the fifth connecting column (43) away from the support column (41).

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