Detection device for printed circuit board

Abstract

The utility model discloses a detection device for a printed circuit board, which comprises a base, a fixed frame is arranged at the upper end of the base, two symmetrically arranged telescopic cylinders are arranged on the fixed frame in a penetrating manner, the tail ends of the lower ends of the two telescopic cylinders are jointly provided with a connecting plate, the lower end of the connecting plate is provided with detection equipment, the upper end of the base is provided with a fixed plate, and the fixed plate is fixedly connected with the fixed plate. A placement groove is formed in the upper end of the fixing plate, a limiting mechanism used for limiting the circuit board is arranged between the placement groove and the base, and a moving mechanism used for moving the limiting mechanism is arranged at the lower end of the base. According to the utility model, the inclination angles of the plurality of rotating plates are changed, so that the plurality of moving plates are pulled to move, and the plurality of moving plates drive the plurality of limiting plates to be in contact with a plurality of surfaces of the circuit board, so that the circuit board is ensured to be in a central position while the position of the circuit board is fixed, and the position change of the circuit board is avoided; and the detection of the detection equipment is influenced.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing technology, and in particular to a testing device for printed circuit boards. 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] Circuit boards generally need to be inspected during the production process, but existing inspection equipment generally does not have a device to restrict the position of the circuit board, which causes the circuit board to shift during the inspection process and affects the inspection equipment. On the other hand, some devices that do restrict the position of the circuit board do not protect the circuit board and can damage the circuit board during the restriction process. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. By changing the tilt angle of multiple rotating plates, multiple moving plates are pulled along, causing the moving plates, along with multiple limiting plates, to contact multiple surfaces of the circuit board. This achieves the goal of fixing the position of the circuit board while ensuring that the circuit board is centered, thus preventing changes in the position of the circuit board from affecting the detection of the testing equipment. Therefore, this invention provides a testing device for printed circuit boards.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A printed circuit board testing device includes a base, a fixed frame at the upper end of the base, two symmetrically arranged telescopic cylinders passing through the fixed frame, a connecting plate at the lower end of the two telescopic cylinders, a testing device at the lower end of the connecting plate, a fixed plate at the upper end of the base, a placement groove at the upper end of the fixed plate, a limiting mechanism for limiting the circuit board between the placement groove and the base, and a moving mechanism for moving the limiting mechanism at the lower end of the base.

[0007] Preferably, the limiting mechanism includes multiple symmetrically arranged through slots between the placement slot and the base, each of the multiple through slots having a sliding plate connected through it, and each of the multiple sliding plates having a limiting plate on its sidewall.

[0008] Preferably, the moving mechanism includes a threaded ring rotatably connected to the base below, and the outer wall of the threaded ring and the lower ends of multiple moving plates are each provided with a rotating seat, and two relative rotating seats are rotatably connected by rotating plates.

[0009] Preferably, a threaded rod is rotatably connected to the lower end of the base, and a threaded ring is sleeved on the outer wall of the threaded rod and threadedly connected to it.

[0010] Preferably, the lower end of the base is provided with two symmetrically arranged support plates, and a horizontal plate is provided between the two support plates.

[0011] Preferably, the upper end of the horizontal plate is provided with a power motor, and the end of the threaded rod is connected to the end of the output shaft of the power motor.

[0012] Preferably, each of the multiple through slots is provided with a slide rod, and the multiple slide rods pass through and are slidably connected to the multiple movable plates.

[0013] Preferably, each of the plurality of limiting plates has a buffer plate on its opposite surface, and the plurality of buffer plates are made of rubber.

[0014] The beneficial effects of this utility model are:

[0015] 1. By changing the tilt angle of multiple rotating plates, multiple moving plates are pulled along, causing multiple moving plates to contact multiple surfaces of the circuit board with multiple limiting plates. This achieves the goal of fixing the position of the circuit board while ensuring that the circuit board is in a centered position, thus preventing changes in the position of the circuit board from affecting the detection of the testing equipment.

[0016] 2. By setting buffer plates on the side walls of multiple limit plates, the contact between the limit plates and the circuit board is buffered, so as to avoid the reaction force generated by the contact being too large and causing damage to the circuit board. Attached Figure Description

[0017] Figure 1 This is a left-side view of the overall structure of this utility model;

[0018] Figure 2 This is a right-side view of the overall structure of this utility model;

[0019] Figure 3 This is a bottom view of the overall structure of this utility model;

[0020] Figure 4 This is a front view schematic diagram of the overall structure of this utility model;

[0021] Figure 5 This is a bottom view of the left side of the overall structure of this utility model.

[0022] In the diagram: 1. Base, 2. Fixed frame, 3. Telescopic cylinder, 4. Testing equipment, 5. Fixed plate, 6. Placement slot, 7. Through slot, 8. Moving plate, 9. Limiting plate, 10. Buffer plate, 11. Support plate, 12. Horizontal plate, 13. Connecting plate, 14. Rotating seat, 15. Rotating plate, 16. Power motor, 17. Threaded rod, 18. Threaded ring, 19. Slide rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0025] Reference Figure 1-5 A printed circuit board testing device includes a base 1, a fixed frame 2 on the upper end of the base 1, two symmetrically arranged telescopic cylinders 3 passing through the fixed frame 2, a connecting plate 13 at the lower end of the two telescopic cylinders 3, a testing device 4 at the lower end of the connecting plate 13, a fixed plate 5 on the upper end of the base 1, a placement groove 6 on the upper end of the fixed plate 5, a limiting mechanism for limiting the circuit board between the placement groove 6 and the base 1, the limiting mechanism including multiple symmetrically arranged through grooves 7 between the placement groove 6 and the base 1, a movable plate 8 slidingly connected through each of the multiple through grooves 7, and a limiting plate 9 on the side wall of each of the multiple movable plates 8.

[0026] The lower end of the base 1 is provided with a moving mechanism for moving the limiting mechanism. The moving mechanism includes a threaded ring 18 rotatably connected to the lower part of the base 1. The outer wall of the threaded ring 18 and the lower ends of multiple moving plates 8 are each provided with a rotating seat 14. The two rotating seats 14 are rotatably connected to each other through a rotating plate 15. By changing the tilt angle of the multiple rotating plates 15, the multiple moving plates 8 are pulled to move, so that the multiple moving plates 8, along with the multiple limiting plates 9, contact multiple surfaces of the circuit board. This achieves the goal of fixing the position of the circuit board while ensuring that the circuit board is in the center position, avoiding changes in the position of the circuit board and affecting the detection of the detection equipment 4.

[0027] A threaded rod 17 is rotatably connected to the lower end of the base 1, and a threaded ring 18 is sleeved on the outer wall of the threaded rod 17 and threadedly connected to it.

[0028] The base 1 has two symmetrically arranged support plates 11 at its lower end, and a horizontal plate 12 is provided between the two support plates 11.

[0029] A power motor 16 is provided at the upper end of the horizontal plate 12, and the end of the threaded rod 17 is connected to the end of the output shaft of the power motor 16.

[0030] Each of the multiple through slots 7 is equipped with a slide rod 19, which passes through and is slidably connected to the multiple movable plates 8.

[0031] Multiple limit plates 9 are provided with buffer plates 10 on their opposite sides. The multiple buffer plates 10 are all made of rubber. By setting the buffer plates 10 on the side walls of the multiple limit plates 9, the contact between the limit plates 9 and the circuit board is buffered, so as to avoid the reaction force generated by the contact being too large and causing damage to the circuit board.

[0032] When using this invention to test a circuit board, the circuit board is placed in the placement slot 6, and the power motor 16 is started, causing the power motor 16 to drive the threaded rod 17 to rotate. The threaded connection between the threaded rod 17 and the threaded ring 18 allows the threaded ring 18 to move on the outer wall of the threaded rod 17. Through the sliding connection between multiple moving plates 8 and the through slot 7, and the rotation of the rotating seat 14 and rotating plate 15 between the moving plates 8 and the threaded ring 18, the tilt angle of the multiple rotating plates 15 changes as the threaded ring 18 moves downward, thus pulling the multiple moving plates 8 to move. This causes the multiple moving plates 8, along with the multiple limiting plates 9, to contact multiple surfaces of the circuit board, thereby fixing the position of the circuit board while ensuring it remains in a centered position, preventing changes in the circuit board's position from affecting the testing equipment 4. The buffer plates 10 on the side walls of the multiple limiting plates 9 buffer the contact between the limiting plates 9 and the circuit board, preventing excessive reaction force from damaging the circuit board.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A testing device for printed circuit boards, comprising a base (1), characterized in that, The base (1) has a fixed frame (2) at its upper end. Two symmetrically arranged telescopic cylinders (3) are arranged through the fixed frame (2). The lower ends of the two telescopic cylinders (3) are connected by a connecting plate (13). The lower end of the connecting plate (13) is provided with a detection device (4). The base (1) has a fixed plate (5) at its upper end. The fixed plate (5) has a placement groove (6) at its upper end. A limiting mechanism for limiting the circuit board is provided between the placement groove (6) and the base (1). The lower end of the base (1) is provided with a moving mechanism for moving the limiting mechanism.

2. The printed circuit board testing device according to claim 1, characterized in that, The limiting mechanism includes multiple symmetrically arranged through slots (7) between the placement slot (6) and the base (1), and each of the multiple through slots (7) is slidably connected to a movable plate (8), and each of the multiple movable plates (8) is provided with a limiting plate (9) on its side wall.

3. The printed circuit board testing device according to claim 2, characterized in that, The moving mechanism includes a threaded ring (18) rotatably connected to the base (1) below. The outer wall of the threaded ring (18) and the lower ends of the multiple moving plates (8) are each provided with a rotating seat (14). The two rotating seats (14) are rotatably connected to each other through a rotating plate (15).

4. The printed circuit board testing device according to claim 3, characterized in that, The lower end of the base (1) is rotatably connected to a threaded rod (17), and the threaded ring (18) is sleeved on the outer wall of the threaded rod (17) and threadedly connected to it.

5. The printed circuit board testing device according to claim 4, characterized in that, The base (1) has two symmetrically arranged support plates (11) at its lower end, and a horizontal plate (12) is provided between the two support plates (11).

6. The printed circuit board testing device according to claim 5, characterized in that, The upper end of the horizontal plate (12) is provided with a power motor (16), and the end of the threaded rod (17) is connected to the end of the output shaft of the power motor (16).

7. The printed circuit board testing device according to claim 6, characterized in that, Each of the multiple through slots (7) is provided with a slide rod (19), and the multiple slide rods (19) pass through multiple movable plates (8) and are slidably connected to them.

8. The printed circuit board testing device according to claim 7, characterized in that, Each of the multiple limiting plates (9) has a buffer plate (10) on its opposite side, and the multiple buffer plates (10) are made of rubber.

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