Automatic testing device for circuit board with correction mechanism

Abstract

This utility model discloses an automatic circuit board testing device with a correction mechanism, belonging to the technical field of circuit board testing devices. It includes a base, a support platform on the upper side of the base, and a placement platform fixedly connected to the upper surface of the support platform. A groove is formed in the center of the upper surface of the placement platform, and baffles are fixedly connected to both the front and rear sides of the upper surface of the placement platform. A bidirectional lead screw is rotatably connected to the inner surface of the groove. The right end of the bidirectional lead screw rotatably passes through the placement platform and is connected to a drive motor, which is fixedly connected to the right side of the placement platform surface. Compared with existing ordinary circuit board testing devices, this automatic circuit board testing device with a correction mechanism ensures that the circuit board remains centered and fixed when the two clamping plates hold the circuit board. It not only performs centered correction placement of the circuit board but also effectively fixes the circuit board, improving testing accuracy and ensuring testing stability.

Description

Technical Field

[0001] This utility model relates to the technical field of circuit board testing devices, specifically an automatic circuit board testing device with a correction mechanism. 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, etc. Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. After the circuit board is produced, it needs to be automatically tested. The automatic testing device uses sensors to scan the circuit board or probes to detect and test the circuit to check for faults.

[0003] For example, patent application number 202321091793.3 discloses an automatic testing device for sensor circuit boards. This utility model uses a combination of a drive motor, screw, movable block, sliding block, slide groove, photoelectric sensor, and probe. During testing, the probe detects the circuits on the circuit board, and the automated program tests each circuit on the circuit board. The input end of the probe is electrically connected to the output end of the display, and the test results are displayed on the display. The photoelectric sensor, which is set below the movable block, driven by the screw, can scan and detect the surface of the circuit board from both sides. Similarly, the input end of the photoelectric sensor is electrically connected to the output end of the display. The two detection methods improve the testing efficiency and accuracy. However, when placing the circuit board, the device uses cylinders with independent control at both ends for clamping control. It is difficult to keep the cylinder advance consistent, which means that the circuit board cannot be guaranteed to be centered and clamped. Since the detection structure is fixed, there will be misalignment between the circuit board and the detection structure, which will affect the detection accuracy.

[0004] Therefore, in view of this, we studied and improved the existing structure to address its shortcomings, and proposed an automatic circuit board testing device with a correction mechanism. Utility Model Content

[0005] The purpose of this invention is to provide an automatic testing device for circuit boards with a correction mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic circuit board testing device with a correction mechanism, comprising a base, a support platform on the upper side of the base, a placement platform fixedly connected to the upper surface of the support platform, a groove in the middle of the upper surface of the placement platform, baffles fixedly connected to the front and rear sides of the upper surface of the placement platform, a bidirectional lead screw rotatably connected to the inner surface of the groove, a drive motor rotatably connected to the right end of the bidirectional lead screw through the placement platform, and the drive motor fixedly connected to the right side of the surface of the placement platform, adjusting seats threadedly connected to the left and right sides of the surface of the bidirectional lead screw, and the adjusting seats slidingly fitting against the inner surface of the groove around their perimeter, and clamping plates fixedly connected to the upper surface of the adjusting seats.

[0007] Preferably, electromagnetic slide rails are fixedly connected to both the left and right sides of the upper surface of the base, and electromagnetic sliders are slidably connected to the surfaces of the electromagnetic slide rails, with the upper surface of the electromagnetic sliders fixedly connected to the support platform.

[0008] Preferably, a display is fixedly connected to the right side of the base surface, and support rods are fixedly connected to both the left and right sides of the rear side of the upper surface of the base.

[0009] Preferably, the upper end of the support rod is fixedly connected to the same top plate, and a cylinder is fixedly connected to the middle of the upper surface of the top plate.

[0010] Preferably, the lower end of the cylinder is fixedly connected to a detection head through the top plate, and probes are evenly distributed and fixedly connected to the lower surface edge of the detection head, and the detection head is connected to the display via a transmission line.

[0011] Preferably, movable rods are fixedly connected to both the left and right sides of the upper surface of the detection head, and the upper ends of the movable rods are slidably connected to a circular plate through the top plate.

[0012] Preferably, a spring is fixedly connected to the lower surface of the circular plate, and the lower end of the spring is fixedly connected to the upper surface of the top plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the arrangement of a placement platform, a groove, a baffle, a bidirectional lead screw, a drive motor, an adjusting seat, and a clamping plate, allows the circuit board to be tested to be placed on the placement platform. The front and rear sides are restricted by the baffle, ensuring that the center position of the circuit board is located on the center line of the placement platform. The drive motor can drive the bidirectional lead screw to rotate, and the adjusting seat, limited by the groove, will move synchronously in opposite directions using the thread force, thereby driving the clamping plate to move synchronously towards the center to clamp the circuit board. Due to the synchronous movement of the clamping plates, it can be ensured that the circuit board remains fixed in the center when the clamping plates on both sides are clamping the circuit board. This not only enables the circuit board to be centered and corrected, but also effectively fixes the circuit board, improving the detection accuracy and ensuring the detection stability.

[0015] 2. This utility model, through the setting of electromagnetic slide rail, electromagnetic slider and support platform, uses electromagnetic control to drive the support platform to move back and forth along the electromagnetic slide rail. Moving forward can move the entire placement platform out of the detection position, thereby facilitating manual disassembly and assembly of the circuit board.

[0016] 3. This utility model, through the arrangement of a movable rod, a circular plate, and a spring, ensures that when the cylinder pushes the detection head downward to test the circuit board, the downward movement of the detection head pulls the movable rod and the circular plate downward. As the circular plate moves downward, it compresses the spring, thereby gradually increasing the elastic force of the spring and balancing the downward force of the cylinder. This prevents the cylinder from pushing the detection head downward with excessive force, which could cause the probe to collide with the circuit board and be damaged. It ensures the safety of both the detection device and the circuit board during the testing process. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Fig. 2 This is a cross-sectional view of the placement platform of this utility model;

[0019] Fig. 3 This is a schematic diagram of the top plate structure of this utility model.

[0020] In the diagram: 1. Base; 2. Electromagnetic slide rail; 3. Electromagnetic slider; 4. Support platform; 5. Placement platform; 6. Groove; 7. Baffle; 8. Bidirectional lead screw; 9. Drive motor; 10. Adjustment seat; 11. Clamping plate; 12. Display; 13. Support rod; 14. Top plate; 15. Cylinder; 16. Detection head; 17. Probe; 18. Movable rod; 19. Circular plate; 20. Spring. 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] like Figs. 1-3As shown, the automatic circuit board testing device with a correction mechanism includes a base 1, a support platform 4 on the upper side of the base 1, a placement platform 5 fixedly connected to the upper surface of the support platform 4, a groove 6 in the middle of the upper surface of the placement platform 5, baffles 7 fixedly connected to the front and rear sides of the upper surface of the placement platform 5, a bidirectional lead screw 8 rotatably connected to the inner surface of the groove 6, the right end of the bidirectional lead screw 8 rotatably passes through the placement platform 5 and is connected to a drive motor 9, and the drive motor 9 is fixedly connected to the right side of the surface of the placement platform 5, adjusting seats 10 are threadedly connected to the left and right sides of the surface of the bidirectional lead screw 8, and the surface of the adjusting seats 10 slides and fits against the inner surface of the groove 6 around its perimeter, and clamping plates 11 are fixedly connected to the upper surface of the adjusting seats 10.

[0023] By adopting the above technical solution, the circuit board to be tested is placed on the placement platform 5, and the front and rear sides are restricted by the baffles 7, so that the center position of the front and rear of the circuit board is located on the center line of the placement platform 5.

[0024] The drive motor 9 can drive the bidirectional lead screw 8 to rotate. The adjusting seat 10 is limited by the groove 6 and will use the thread force to move synchronously in opposite directions, thereby driving the clamping plate 11 to move synchronously towards the center to clamp the circuit board.

[0025] Because the clamping plates 11 move synchronously, it can be ensured that the circuit board remains fixed in the center when the clamping plates 11 hold the circuit board, and the placement position of the circuit board is corrected.

[0026] Furthermore, electromagnetic slide rails 2 are fixedly connected to both the left and right sides of the upper surface of the base 1, and electromagnetic sliders 3 are slidably connected to the surface of the electromagnetic slide rails 2, and the upper surface of the electromagnetic sliders 3 is fixedly connected to the support platform 4.

[0027] By adopting the above technical solution, when using electromagnetic control, the electromagnetic slider 3 can drive the support platform 4 to move back and forth along the electromagnetic slide rail 2. Moving forward can move the entire placement platform 5 out of the detection position, thus facilitating manual disassembly and assembly of the circuit board.

[0028] Furthermore, a display 12 is fixedly connected to the right side of the surface of the base 1, and support rods 13 are fixedly connected to both the left and right sides of the rear side of the upper surface of the base 1.

[0029] The upper end of the support rod 13 is fixedly connected to the same top plate 14, and the upper surface of the top plate 14 is fixedly connected to the cylinder 15.

[0030] By adopting the above technical solution, the support rod 13 and the top plate 14 form a support platform for mounting the cylinder 15.

[0031] Furthermore, a detection head 16 is fixedly connected to the lower end of the cylinder 15 through the top plate 14, and probes 17 are evenly distributed and fixedly connected to the lower surface edge of the detection head 16. The detection head 16 is connected to the display 12 via a transmission line.

[0032] By adopting the above technical solution, the cylinder 15 can push the detection head 16 and probe 17 downward to detect the circuit board;

[0033] The circuit board test data can be displayed on the monitor 12.

[0034] Furthermore, movable rods 18 are fixedly connected to both the left and right sides of the upper surface of the detection head 16, and the upper ends of the movable rods 18 slide through the top plate 14 and are fixedly connected to the circular plate 19.

[0035] A spring 20 is fixedly connected to the lower surface of the circular plate 19, and the lower end of the spring 20 is fixedly connected to the upper surface of the top plate 14.

[0036] By adopting the above technical solution, when the cylinder 15 pushes the detection head 16 down to detect the circuit board, the downward movement of the detection head 16 will pull the movable rod 18 and the circular plate 19 down. When the circular plate 19 moves down, it will squeeze the spring 20, thereby gradually increasing the elastic force of the spring 20, which will balance the downward force of the cylinder 15 and prevent the cylinder 15 from pushing the detection head 16 down with too much force, which would cause the probe 17 to collide and contact with the circuit board, resulting in damage to both.

[0037] Working Principle: When using this automatic circuit board testing device with a correction mechanism, firstly, the circuit board to be tested is placed on the placement platform 5, with the front and rear sides restricted by the baffles 7, so that the center position of the circuit board is located on the center line of the placement platform 5. The drive motor 9 can drive the bidirectional lead screw 8 to rotate, and the adjusting seat 10 is limited by the groove 6, and will move synchronously in opposite directions using the thread force, thereby driving the clamping plate 11 to move synchronously towards the center to clamp the circuit board. Because the clamping plate 11 moves synchronously, it can be ensured that the circuit board remains fixed in the center when the two clamping plates 11 clamp the circuit board. Then, using electromagnetic control, the electromagnetic slider 3 can drive the support platform 4 to move backward along the electromagnetic slide rail 2, so that the circuit board to be tested is vertically aligned with the detection head 16. Then, the cylinder 1 5. The cylinder 15 pushes the detection head 16 downward, causing the probe 17 to contact the circuit board for testing. When the cylinder 15 pushes the detection head 16 downward to test the circuit board, the downward movement of the detection head 16 will pull the movable rod 18 and the circular plate 19 downward. When the circular plate 19 moves downward, it will squeeze the spring 20, thereby gradually increasing the elastic force of the spring 20, which balances the downward force of the cylinder 15 and avoids that the downward force of the cylinder 15 pushing the detection head 16 is too large, causing the probe 17 to collide with the circuit board and be damaged. This ensures the safety of the testing device and the circuit board during the testing process. After the test is completed, the electromagnetic slide rail 2 and the electromagnetic slider 3 drive the entire support platform 4 forward, making it easy for the operator to disassemble the circuit board. This is the working principle of the automatic circuit board testing device with a correction mechanism.

Claims

1. An automatic circuit board testing device with a correction mechanism, comprising a base (1), characterized in that, A support platform (4) is provided on the upper side of the base (1). A placement platform (5) is fixedly connected to the upper surface of the support platform (4). A groove (6) is provided in the middle of the upper surface of the placement platform (5). Baffles (7) are fixedly connected to the front and rear sides of the upper surface of the placement platform (5). A two-way screw (8) is rotatably connected to the inner surface of the groove (6). The right end of the two-way screw (8) rotatably passes through the placement platform (5) and is connected to a drive motor (9). The drive motor (9) is fixedly connected to the right side of the surface of the placement platform (5). Adjustment seats (10) are threadedly connected to the left and right sides of the surface of the two-way screw (8). The surface of the adjustment seat (10) slides against the inner surface of the groove (6) around its perimeter. A clamp (11) is fixedly connected to the upper surface of the adjustment seat (10).

2. The automatic circuit board testing device with a correction mechanism according to claim 1, characterized in that, Electromagnetic slide rails (2) are fixedly connected to both the left and right sides of the upper surface of the base (1). Electromagnetic sliders (3) are slidably connected to the surface of the electromagnetic slide rails (2), and the upper surface of the electromagnetic sliders (3) is fixedly connected to the support platform (4).

3. The automatic circuit board testing device with a correction mechanism according to claim 1, characterized in that, A display (12) is fixedly connected to the right side of the surface of the base (1), and support rods (13) are fixedly connected to the left and right sides of the rear side of the upper surface of the base (1).

4. The automatic circuit board testing device with a correction mechanism according to claim 3, characterized in that, The upper end of the support rod (13) is fixedly connected to the same top plate (14), and a cylinder (15) is fixedly connected to the middle of the upper surface of the top plate (14).

5. The automatic circuit board testing device with a correction mechanism according to claim 4, characterized in that, The lower end of the cylinder (15) is fixedly connected to the top plate (14) with a detection head (16), and probes (17) are evenly distributed and fixedly connected at the lower surface edge of the detection head (16). The detection head (16) is connected to the display (12) via a transmission line.

6. The automatic circuit board testing device with a correction mechanism according to claim 5, characterized in that, The upper surface of the detection head (16) is fixedly connected to both the left and right sides with movable rods (18), and the upper ends of the movable rods (18) slide through the top plate (14) and are fixedly connected to a circular plate (19).

7. The automatic circuit board testing device with a correction mechanism according to claim 6, characterized in that, A spring (20) is fixedly connected to the lower surface of the circular plate (19), and the lower end of the spring (20) is fixedly connected to the upper surface of the top plate (14).

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