A printed circuit board assembly test fixture

Abstract

The utility model provides a kind of printed circuit board assembly test fixture, it belongs to circuit board test field, it includes: bottom plate;Driving assembly, the driving assembly includes rotary air cylinder and rotary table, the rotary air cylinder is fixedly arranged on bottom plate, and the rotary table is fixedly arranged on the output end of rotary air cylinder;Multiple clamping assemblies are provided on the rotary table, and the clamping assembly includes two sliders, two movable rods, two top rods and guide table, the slider is slidably arranged on the surface of rotary table, and the middle part of movable rod is hingedly connected on slider.The utility model is provided with driving assembly and clamping assembly, saves the time of waiting, and without manually locking and unlocking circuit board, greatly improve work efficiency;Screw rod is also provided, and different specifications of circuit board can be adapted, adaptability and flexibility are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing technology, and in particular to a test fixture for printed circuit board assemblies. Background Technology

[0002] A printed circuit board (PCB) is a board-shaped electronic product made using electronic printing technology. It connects electronic components together through wires, pads, etc., to achieve electrical connection and mechanical support for various parts in electronic devices. Various electronic components are soldered onto its surface. In order to ensure that the soldering is stable, the PCB needs to be tested to avoid unstable PCBs from being put on the market.

[0003] Existing printed circuit board (PCB) test fixtures typically employ a single-board testing method. After testing each PCB, the locking mechanism must be released, the tested PCB removed, and the PCB to be tested installed and locked before the next test can begin. This process is cumbersome, time-consuming, and labor-intensive, significantly reducing testing efficiency. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, this utility model provides a test fixture for printed circuit board components.

[0005] An embodiment of this utility model provides a printed circuit board assembly test fixture, comprising: Base plate; A drive assembly, comprising a rotary cylinder and a turntable, wherein the rotary cylinder is fixedly mounted on a base plate and the turntable is fixedly mounted on the output end of the rotary cylinder; The turntable is equipped with multiple clamping assemblies, each including two sliders, two movable rods, two push rods, and a guide platform. The sliders are slidably disposed on the surface of the turntable. The middle part of the movable rod is hinged to the slider. A torsion spring is provided at the hinge connection between the movable rod and the slider. A pressure plate is fixedly disposed at one end of the movable rod. The push rod is slidably disposed through the slider. The guide platform is fixedly disposed on the base plate.

[0006] Furthermore, the turntable is provided with multiple limiting plates, and multiple fixing plates are fixedly provided on the turntable. The outer sides of the limiting plates and the slider are rotatably connected with screws, and the screws pass through the fixing plates on the same side and are threadedly connected to them.

[0007] Furthermore, guide rods are fixedly provided on the outer sides of both the slider and the limiting plate, and the guide rods pass through the fixed plate on the same side and are slidably disposed therewith.

[0008] Furthermore, a roller is fixedly provided at the bottom of the top rod, and the roller is abutted against the base plate.

[0009] Furthermore, the base plate is provided with multiple through holes, and the top rod is movably disposed through the through holes.

[0010] Furthermore, a protective pad is fixedly provided at the bottom of the pressure plate, and the protective pad is used to press against the circuit board.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. Equipped with drive and clamping components, the rotary cylinder can drive multiple installation stations to rotate intermittently. Workers can place the circuit boards to be inspected into the installation stations one by one in a cycle, saving waiting time. At the same time, when the installation station rotates to the inside, the guide table can drive the pressure plate to rotate downwards to press the circuit board against it. After inspection, the torsion spring can drive the pressure plate to lift up and separate from the circuit board, eliminating the need for manual locking and unlocking of the circuit board, reducing labor intensity and further improving work efficiency.

[0012] 2. A screw is provided, which can drive the slider or limit plate to move and position, thereby adapting to circuit boards of different specifications and enhancing adaptability and flexibility.

[0013] In summary, this utility model incorporates a drive assembly and a clamping assembly, saving waiting time and eliminating the need for manual locking and unlocking of the circuit board, thus significantly improving work efficiency. Furthermore, the inclusion of a screw allows for adaptation to circuit boards of different specifications, enhancing adaptability and flexibility. Attached Figure Description

[0014] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0015] Figure 2 This is an exploded view of an embodiment of the present utility model.

[0016] Figure 3 This is a partial structural schematic diagram of an embodiment of the present utility model.

[0017] Figure 4 This is a schematic diagram of the clamping component in an embodiment of the present invention.

[0018] In the above attached figures: 1 base plate, 2 rotary cylinder, 3 turntable, 4 slider, 5 movable rod, 6 pressure plate, 7 top rod, 8 roller, 9 through hole, 10 protective pad, 11 limit plate, 12 fixed plate, 13 screw, 14 guide rod, 15 guide table. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1-4As shown, this utility model embodiment proposes a printed circuit board assembly test fixture, comprising: Base plate 1 serves as a support.

[0021] The drive assembly includes a rotary cylinder 2 and a turntable 3. The rotary cylinder 2 is fixedly mounted on the base plate 1, and the turntable 3 is fixedly mounted on the output end of the rotary cylinder 2. The rotary cylinder 2 is used to drive the turntable 3 to rotate.

[0022] The turntable 3 is equipped with multiple clamping components, including two sliders 4, two movable rods 5, two push rods 7, and a guide table 15. The sliders 4 are slidably mounted on the surface of the turntable 3, and the middle of the movable rods 5 is hinged to the sliders 4 (e.g., Figure 4 As shown in the figure, both ends of the movable rod 5 can rotate up and down. A torsion spring is provided at the hinge connection between the movable rod 5 and the slider 4, so that after the movable rod 5 rotates, the torsion spring can drive the movable rod 5 to reverse and return to its original position.

[0023] A pressure plate 6 is fixedly installed at one end of the movable rod 5, and a protective pad 10 is fixedly installed at the bottom of the pressure plate 6. The protective pad 10 is used to press against the circuit board and plays a protective role.

[0024] The push rod 7 slides through the slider 4, allowing it to slide up and down. Multiple through holes 9 are provided on the base plate 1, through which the push rod 7 moves, allowing it to move within the holes 9. A roller 8 is fixedly mounted at the bottom of the push rod 7, abutting against the base plate 1. A guide table 15 is fixedly mounted on the base plate 1, with inclined surfaces at both ends, allowing the roller 8 to roll onto the guide table 15 and thus lift the push rod 7.

[0025] The turntable 3 is equipped with multiple limiting plates 11, which are used to limit the movement of the circuit board. Multiple fixing plates 12 are fixedly installed on the turntable 3. Screws 13 are rotatably connected to the outer sides of the limiting plates 11 and the sliders 4. The screws 13 pass through the fixing plates 12 on the same side and are threaded to them, so that rotating the screws 13 can drive the corresponding limiting plates 11 or sliders 4 to move, thereby adjusting their positions to accommodate different circuit boards.

[0026] Guide rods 14 are fixedly installed on the outer sides of both slider 4 and limiting plate 11. The guide rods 14 pass through the fixed plate 12 on the same side and slide therewith. The guide rods 14 play a guiding and supporting role for limiting plate 11 and slider 4.

[0027] The detailed working process of this utility model is as follows: 1. During use, the rotary cylinder 2 can drive the turntable 3 to rotate intermittently, rotating multiple installation stations to the outer end in sequence; at the same time, the staff can put the circuit board to be tested into the installation station in sequence, rotate it to the inner side of the circuit board, and then it can be tested by the testing equipment; this process is repeated, saving waiting time and improving work efficiency.

[0028] 2. Simultaneously, as the installation station rotates to the inner side, the guide table 15 can push the roller 8 at its bottom upwards. The roller 8 pushes the movable rod 5 to rotate through the top rod 7, thereby causing the pressure plate 6 to rotate downwards and press the circuit board against the protective pad 10. After the test is completed, when the roller 8 moves to the point of separation from the guide table 15, the torsion spring will drive the movable rod 5 and the top rod 7 to reset, thereby causing the pressure plate 6 to lift upwards and separate from the circuit board. Subsequently, when placing the circuit board to be tested, the tested circuit board can be removed first, without the need for manual locking and unlocking of the circuit board, reducing labor intensity and further improving work efficiency.

[0029] 3. During adjustment, rotating the screw 13 will move the corresponding slider 4 or limit plate 11, thereby adjusting the position of the slider 4 or limit plate 11 to adapt to different specifications of circuit boards.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A test fixture for printed circuit board assemblies, characterized in that, include: Base plate (1); The drive assembly includes a rotary cylinder (2) and a turntable (3). The rotary cylinder (2) is fixedly mounted on the base plate (1), and the turntable (3) is fixedly mounted on the output end of the rotary cylinder (2). The turntable (3) is provided with multiple clamping components, including two sliders (4), two movable rods (5), two top rods (7) and a guide platform (15). The sliders (4) are slidably disposed on the surface of the turntable (3). The middle part of the movable rods (5) is hinged to the sliders (4). A torsion spring is provided at the hinge connection between the movable rods (5) and the sliders (4). A pressure plate (6) is fixedly disposed at one end of the movable rods (5). The top rods (7) are slidably disposed through the sliders (4). The guide platform (15) is fixedly disposed on the base plate (1).

2. The printed circuit board assembly test fixture according to claim 1, characterized in that, in: The turntable (3) is provided with multiple limiting plates (11), and multiple fixing plates (12) are fixedly provided on the turntable (3). The outer sides of the limiting plates (11) and the slider (4) are rotatably connected with screws (13). The screws (13) pass through the fixing plates (12) on the same side and are threadedly connected to them.

3. A printed circuit board assembly testing fixture according to claim 2, characterized in that, in: Guide rods (14) are fixedly provided on the outer sides of both the slider (4) and the limiting plate (11). The guide rods (14) pass through the fixed plate (12) on the same side and slide therewith.

4. A printed circuit board assembly testing fixture according to claim 1, characterized in that, in: The bottom of the top rod (7) is fixedly provided with a roller (8), which is abutted against the bottom plate (1).

5. A printed circuit board assembly testing fixture according to claim 1, characterized in that, in: The base plate (1) has multiple through holes (9) through it, and the top rod (7) is movably arranged through the through holes (9).

6. A printed circuit board assembly test fixture according to claim 1, characterized in that, in: A protective pad (10) is fixedly provided at the bottom of the pressure plate (6), and the protective pad (10) is used to press against the circuit board.

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