Circuit board detection jig

Abstract

The utility model relates to a circuit board detection jig which comprises a box body, a fixing mechanism is arranged on the box body, four connecting rods are fixed on the upper surface of the box body, a top plate is fixed on the upper surfaces of the four connecting rods, and a detection mechanism is arranged on the top plate. The fixing mechanism comprises an electric push rod fixed to the left side of the inner cavity of the box body, a push plate is fixed to the output end of the electric push rod, a sliding block is fixed to the lower surface of the push plate, two hinge rods are hinged to the upper surface of the push plate, and a movable plate is hinged to the other ends of the hinge rods. The circuit board detection jig is provided with the fixing mechanism, the fixing mechanism operates through an electric push rod and can push a push plate, so that a hinge rod drives a moving plate to move, the moving plate can drive a connecting plate to move, and then a clamping plate clamps a circuit board on a box body, and compared with a traditional circuit board detection jig, the circuit board detection jig has the advantages that the circuit board detection efficiency is improved; and the circuit board can be conveniently fixed.

Description

Technical Field

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

[0002] A circuit board, also known as a printed circuit board, is an important electronic component. It serves as a support for electronic components and provides the circuit connections for electronic components. Circuit board testing fixtures are used during the production and processing of circuit boards.

[0003] For example, Chinese Patent Publication No. (CN216956257U) discloses a testing fixture structure for circuit boards, including a base, a pad fixedly mounted on the top of the base, a pressure plate mounted directly above the pad, a testing probe fixedly mounted on the bottom of the pressure plate, an electric push rod fixedly mounted on the top of the testing probe, a display screen fixedly mounted on the front of the base, support plates mounted on both sides of the display screen, a lead screw movably mounted inside the support plate, one end of the lead screw being fixedly connected to the output shaft of a motor, a nut seat movably mounted on the surface of the lead screw, a movable plate fixedly mounted on one side of the nut seat, and a brush plate movably mounted on the back of the movable plate. The brush plate has slots on both sides, and locking blocks are engaged within the inner walls of the slots. This testing fixture structure for circuit boards, by setting the nut seat and the lead screw, allows the rotating lead screw to drive the brush plate on the movable plate to move vertically through a threaded connection with the nut seat. The moving brush plate cleans dust from the display screen, preventing interference with data reading by the user.

[0004] The aforementioned circuit board testing fixture structure still has certain shortcomings. During use, it is impossible to fix the circuit board on the surface of the testing fixture, which makes the circuit board prone to displacement during the testing process, resulting in incomplete testing. Therefore, a circuit board testing fixture is proposed to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a circuit board testing fixture that is easy to fix, thus solving the problem of inconvenient fixing of circuit board testing fixtures.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a circuit board testing fixture, including a housing, a fixing mechanism on the housing, four connecting rods fixed on the upper surface of the housing, a top plate fixed on the upper surface of the four connecting rods, and a testing mechanism on the top plate;

[0007] The fixing mechanism includes an electric push rod fixed to the left side of the inner cavity of the box. A push plate is fixed to the output end of the electric push rod. A slider is fixed to the lower surface of the push plate. Two hinge rods are hinged to the upper surface of the push plate. A movable plate is hinged to the other end of the hinge rods. A connecting plate penetrating the upper surface of the box is fixed to the upper surface of the movable plate. Support rods with their two ends fixed to the front and rear sides of the inner cavity of the box are slidably connected inside the two connecting plates. Clamping plates are fixed to the opposite sides of the two connecting plates.

[0008] Furthermore, the detection mechanism includes a cylinder fixed to the lower surface of the top plate, a horizontal plate fixed to the output end of the cylinder, two springs fixed to the lower surface of the horizontal plate, a pressure plate fixed to the lower surface of the two springs, a plurality of detection pins fixed to the lower surface of the pressure plate, two telescopic rods fixed to the upper surface of the pressure plate and the lower surface of the horizontal plate, a lifting plate fixed to the back of the horizontal plate, and a fixing rod slidably connected inside the lifting plate to the upper surface of the lifting plate and the lower surface of the top plate.

[0009] Furthermore, the push plate is L-shaped, and the upper surface of the box has an elongated hole, which is slidably connected to the outer surface of the connecting plate.

[0010] Furthermore, the slider is T-shaped, and a T-shaped groove is provided on the upper surface of the inner cavity of the box, and the T-shaped groove is slidably connected to the outer surface of the slider.

[0011] Furthermore, the support rod is a square rod, and the front of the connecting plate has a square hole, which is slidably connected to the outer surface of the support rod.

[0012] Furthermore, the telescopic rod is located inside the spring, and the plurality of detection pins are arranged at equal intervals.

[0013] Furthermore, the upper surface of the lifting plate is provided with a circular hole, and the circular hole is slidably connected to the outer surface of the fixing rod.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. This circuit board testing fixture is equipped with a fixing mechanism. The fixing mechanism is operated by an electric push rod, which can push the push plate, causing the hinge rod to move the moving plate. The movement of the moving plate can move the connecting plate, thereby causing the clamping plate to clamp the circuit board on the box. Compared with traditional circuit board testing fixtures, it is easier to fix the circuit board.

[0016] 2. This circuit board testing fixture is equipped with a testing mechanism, which is operated by a cylinder to raise and lower the horizontal plate. The lowering of the horizontal plate can drive the telescopic rod to lower, and the lowering of the telescopic rod can drive the pressure plate to lower, thereby causing the pressure plate to drive the testing fixture to test the circuit board. The spring can provide buffering during descent. Compared with traditional circuit board testing fixtures, it is easier to perform testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the fixing mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the testing mechanism of this utility model.

[0020] In the diagram: 1. Box body; 2. Fixing mechanism; 201. Electric push rod; 202. Push plate; 203. Slider; 204. Hinge rod; 205. Moving plate; 206. Connecting plate; 207. Support rod; 208. Clamping plate; 3. Connecting rod; 4. Top plate; 5. Detection mechanism; 501. Cylinder; 502. Horizontal plate; 503. Spring; 504. Pressure plate; 505. Detection needle; 506. Telescopic rod; 507. Lifting plate; 508. Fixing rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 This embodiment of a circuit board testing fixture includes a housing 1, a fixing mechanism 2 on the housing 1, four connecting rods 3 fixed on the upper surface of the housing 1, a top plate 4 fixed on the upper surface of the four connecting rods 3, and a testing mechanism 5 on the top plate 4. In use, the circuit board is placed on the housing 1, the fixing mechanism 2 can fix the circuit board on the housing 1, and the testing mechanism 5 can facilitate the testing of the circuit board.

[0023] Please see Figure 1-2To facilitate the fixing of the circuit board, the fixing mechanism 2 in this embodiment includes an electric push rod 201 fixed to the left side of the inner cavity of the housing 1. A push plate 202 is fixed to the output end of the electric push rod 201. When the electric push rod 201 operates, it can drive the push plate 202 to move. The push plate 202 is L-shaped. A slider 203 is fixed to the lower surface of the push plate 202. The slider 203 can support the push plate 202. The slider 203 is T-shaped. Two hinge rods 204 are hinged to the upper surface of the push plate 202. The movement of the push plate 202 can drive the hinge rods 204 to move. A movable plate 2 is hinged to the other end of the hinge rod 204. 05. The movement of the hinge rod 204 can drive the movement of the movable plate 205. The upper surface of the movable plate 205 is fixed with a connecting plate 206 that penetrates the upper surface of the housing 1. The movement of the movable plate 205 can drive the movement of the connecting plate 206. The two connecting plates 206 are slidably connected with support rods 207, whose two ends are fixed to the front and rear sides of the inner cavity of the housing 1 respectively. The support rods 207 can support the connecting plates 206. The support rods 207 are square rods. The opposite sides of the two connecting plates 206 are fixed with clamping plates 208. The movement of the connecting plate 206 can drive the movement of the clamping plates 208. The clamping plates 208 can clamp the circuit board.

[0024] The upper surface of the housing 1 has an elongated hole, which is slidably connected to the outer surface of the connecting plate 206. The connecting plate 206 cooperates with the elongated hole to facilitate the movement of the connecting plate 206. The upper surface of the inner cavity of the housing 1 has a T-shaped groove, which is slidably connected to the outer surface of the slider 203. The slider 203 cooperates with the T-shaped groove to make the push plate 202 move more stably.

[0025] Meanwhile, a square hole is provided on the front of the connecting plate 206, and the square hole is slidably connected to the outer surface of the support rod 207. The support rod 207 cooperates with the square hole to support the connecting plate 206, making the movement of the connecting plate 206 more stable.

[0026] In this embodiment, the operation of the electric push rod 201 can drive the push plate 202 to push the hinge rod 204 to move, thereby causing the moving plate 205 to move and drive the connecting plate 206 to move, so that the clamping plate 208 can clamp the circuit board.

[0027] Please see Figure 1 and Figure 3To facilitate testing, the testing mechanism 5 in this embodiment includes a cylinder 501 fixed to the lower surface of the top plate 4. A horizontal plate 502 is fixed to the output end of the cylinder 501. When the cylinder 501 operates, it can drive the horizontal plate 502 to rise and fall. Two springs 503 are fixed to the lower surface of the horizontal plate 502, which can act as a buffer for protection. A pressure plate 504 is fixed to the lower surface of the two springs 503. The rising and falling of the horizontal plate 502 can drive the pressure plate 504 to rise and fall. Multiple detection needles 505 are fixed to the lower surface of the pressure plate 504. The rising and falling of the pressure plate 504 can drive the detection needles 505 to rise and fall. The test pins 505 can test the circuit board. Multiple test pins 505 are arranged at equal intervals. The upper surface of the pressure plate 504 is fixed with two telescopic rods 506, which are fixed to the lower surface of the horizontal plate 502. The telescopic rods 506 can make the pressure plate 504 move more stably. The telescopic rods 506 are located inside the spring 503. The back of the horizontal plate 502 is fixed with a lifting plate 507. The lifting of the horizontal plate 502 can drive the lifting plate 507 to rise and fall. The lifting plate 507 is slidably connected to the upper surface of the lifting plate 507 and the lower surface of the top plate 4. The fixing rods 508 can limit the lifting plate 507.

[0028] In addition, a round hole is provided on the upper surface of the lifting plate 507, and the round hole is slidably connected to the outer surface of the fixing rod 508. The fixing rod 508 cooperates with the round hole to facilitate the limiting of the horizontal plate 502, prevent the horizontal plate 502 from shaking, and make the lifting of the horizontal plate 502 more stable.

[0029] In this embodiment, the operation of the cylinder 501 enables the pressure plate 504 to drive the detection needle 505 to detect the circuit board, and the spring 503 can provide cushioning during descent.

[0030] The working principle of the above embodiments is as follows:

[0031] (1) The electric push rod 201 is operated to push the push plate 202 to move. The slider 203 cooperates with the T-shaped slide groove to make the push plate 202 move more stably. The movement of the push plate 202 can drive the hinge rod 204 to move. The movement of the hinge rod 204 can drive the moving plate 205 to move. The movement of the moving plate 205 can drive the connecting plate 206 to move. The support rod 207 cooperates with the square hole to support the connecting plate 206 and make the movement of the connecting plate 206 more stable. The movement of the connecting plate 206 can drive the clamping plate 208 to move, so that the clamping plate 208 clamps the circuit board on the housing 1.

[0032] (2) The cylinder 501 is operated so that the cylinder 501 can drive the horizontal plate 502 to rise and fall. The fixed rod 508 cooperates with the round hole on the lifting plate 507 to facilitate the limiting of the horizontal plate 502, prevent the horizontal plate 502 from shaking, and make the rise and fall of the horizontal plate 502 more stable. The horizontal plate 502 descends and drives the telescopic rod 506 to move downward. The telescopic rod 506 descends and drives the pressure plate 504 to move downward. The pressure plate 504 descends and drives the detection needle 505 to move downward, so that the detection needle 505 can detect the circuit board. When the detection needle 505 descends, the spring 503 can buffer it.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover 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. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit board testing fixture, comprising a housing (1), characterized in that: The box (1) is provided with a fixing mechanism (2), and four connecting rods (3) are fixed on the upper surface of the box (1). A top plate (4) is fixed on the upper surface of the four connecting rods (3), and a detection mechanism (5) is provided on the top plate (4). The fixing mechanism (2) includes an electric push rod (201) fixed to the left side of the inner cavity of the box (1). The output end of the electric push rod (201) is fixed with a push plate (202). The lower surface of the push plate (202) is fixed with a slider (203). The upper surface of the push plate (202) is hinged with two hinge rods (204). The other end of the hinge rods (204) is hinged with a moving plate (205). The upper surface of the moving plate (205) is fixed with a connecting plate (206) that penetrates the upper surface of the box (1). The two connecting plates (206) are slidably connected with support rods (207) whose two ends are fixed to the front and rear sides of the inner cavity of the box (1) respectively. The opposite sides of the two connecting plates (206) are fixed with clamping plates (208).

2. The circuit board testing fixture according to claim 1, characterized in that: The detection mechanism (5) includes a cylinder (501) fixed to the lower surface of the top plate (4). A horizontal plate (502) is fixed to the output end of the cylinder (501). Two springs (503) are fixed to the lower surface of the horizontal plate (502). A pressure plate (504) is fixed to the lower surface of the two springs (503). A plurality of detection needles (505) are fixed to the lower surface of the pressure plate (504). Two telescopic rods (506) are fixed to the upper surface of the pressure plate (504) and the lower surface of the horizontal plate (502). A lifting plate (507) is fixed to the back of the horizontal plate (502). A fixing rod (508) is slidably connected inside the lifting plate (507) and the upper surface of the lifting plate (507) is fixed to the lower surface of the top plate (4).

3. The circuit board testing fixture according to claim 1, characterized in that: The push plate (202) is L-shaped, and the upper surface of the box (1) is provided with an elongated hole, which is slidably connected to the outer surface of the connecting plate (206).

4. The circuit board testing fixture according to claim 1, characterized in that: The slider (203) is T-shaped, and a T-shaped groove is provided on the upper surface of the inner cavity of the box (1), and the T-shaped groove is slidably connected to the outer surface of the slider (203).

5. A circuit board testing fixture according to claim 1, characterized in that: The support rod (207) is a square rod, and the front of the connecting plate (206) has a square hole, which is slidably connected to the outer surface of the support rod (207).

6. A circuit board testing fixture according to claim 2, characterized in that: The telescopic rod (506) is located inside the spring (503), and the plurality of detection pins (505) are arranged at equal intervals.

7. A circuit board testing fixture according to claim 2, characterized in that: The upper surface of the lifting plate (507) is provided with a circular hole, and the circular hole is slidably connected to the outer surface of the fixing rod (508).

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