Circuit board testing device

Abstract

The utility model provides a circuit board testing device, and relates to the technical field of circuit boards, the circuit board testing device comprises an outer housing and a control box, the upper side of the control box is fixedly connected with a board position mechanism, a lifting mechanism is installed in the control box in a penetrating manner, and the outer side of the lifting mechanism is fixedly provided with a connection testing mechanism. The connection test mechanism comprises an approaching assembly, a mounting plate, a wiring terminal and a cable; according to the utility model, the approaching assembly is controlled to push the mounting plate downwards, so that the two groups of wiring terminals are pushed to be in contact with the welding points, corresponding cables are connected in series with the display module, the switch module, the power supply module and the universal meter module in the control box to form an access, the switch module and the universal meter module are turned on to test the power-on condition, and the power-on condition is fed back to the display module. Whether the circuit board is powered on or not is judged according to the display information on the display module, power-on testing is achieved, and compared with traditional manual testing, the testing mode is more accurate in testing and suitable for batch testing.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to a circuit board testing device. Background Technology

[0002] A circuit board, also known as a printed circuit board, is an important electronic component used to support and connect other electronic devices. It is a core component of modern electronic equipment and is widely used in computers, mobile phones, home appliances, automobiles, medical equipment, and many other fields.

[0003] In existing technologies, after a circuit board is manufactured, it needs to undergo various tests, the most basic of which is the power-on test to ensure that the circuit board can work properly. This test often involves manually touching the wires to the solder joints to test whether the circuit board can conduct electricity. Only after the test is passed can the wires be soldered. However, circuit boards often have multiple solder joints, and this testing method has a large error, which affects the test results and is not conducive to batch testing. Utility Model Content

[0004] This invention provides a circuit board testing device that can simultaneously test multiple solder joints with high efficiency.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a circuit board testing device, comprising an outer casing and a control box. A board positioning mechanism is fixedly connected to the upper side of the control box. A lifting mechanism is installed through the inside of the control box. A connection testing mechanism is fixedly installed on the outer side of the lifting mechanism. The connection testing mechanism includes a proximity component, a mounting plate, terminals, and cables. Multiple sets of mounting holes are evenly formed on the outer edge of the mounting plate. The terminals are threaded to the inner wall of the mounting holes. The terminals are electrically connected to the control box via the cables. Two sets of terminals are provided. The control box contains a display module, a switch module, a power supply module, and a multimeter module. One set of terminals, the display module, the switch module, and the power supply module are connected to the control box. The circuit board, the multimeter module, and another set of terminals are connected in series. The positions of the two sets of terminals in multiple mounting holes are arranged according to the solder points of the circuit board to enable testing of different circuit boards. The circuit board is limited by the board positioning mechanism, and the lifting mechanism drives the connecting test mechanism to move downward. When it approaches the circuit board, it stops moving and controls the approach component to push the mounting plate downward, thereby pushing the two sets of terminals to contact the solder points. Thus, the circuit board is connected in series with the display module, switch module, power supply module, and multimeter module inside the control box through the corresponding cables to form a circuit. When the switch module is turned on, the multimeter module tests the power supply status and feeds back to the display module. The display module determines whether the circuit board is powered based on the information displayed on the display module, thus realizing the power supply test. Compared with traditional manual testing, this testing method is more accurate and suitable for batch testing.

[0006] Preferably, the approach assembly includes a second electric cylinder, a limiting frame, and a shelf. The shelf is fixedly connected to the upper side of the mounting plate. The second electric cylinder is fixedly installed in the middle of the limiting frame. The movable end of the second electric cylinder is fixedly connected to the upper middle part of the shelf. The shelf is slidably connected to the rod of the limiting frame. When the second electric cylinder is activated, the movable rod of the second electric cylinder extends downward to push the shelf. The rod of the shelf passes through the platform and pushes the mounting plate downward.

[0007] Preferably, the lifting mechanism includes a first electric cylinder, a platform, and a vertical rod. The limiting frame is fixedly connected to the upper side of the platform, the platform is slidably connected to the vertical rod, and the first electric cylinder is fixedly connected to the lower side of the platform. The moving end of the first electric cylinder is controlled to retract, pulling the platform downward along the vertical rod, and stopping when it approaches the circuit board.

[0008] Preferably, the first electric cylinder is installed through the inside of the control box, and the vertical rod is fixedly connected to the upper side of the control box. The control box serves as a support part for mounting the first electric cylinder and the vertical rod.

[0009] Preferably, the board positioning mechanism includes a board base, positioning posts, locking blocks, and screws. The board base is fixedly installed on the upper side of the control box, and multiple sets of positioning posts are distributed and fixed on the upper side of the board base. The positions and number of multiple positioning posts on the board base are planned according to the limiting holes of the circuit board, thereby making it suitable for different circuit boards.

[0010] Preferably, both ends of the plate base are rotatably connected to a set of the locking blocks. The end of each locking block is threaded with a screw. The end of the screw abuts against the upper side of the control box, locking the circuit board onto the plate base via a positioning post. Rotating the screw causes it to rotate in the end of the locking block and extend downward. The end of the screw is spherical. After abutting against the control box, it drives the locking block to rotate on the side of the plate base. The end of the locking block moves in an arc and then presses down on the side of the circuit board. The same applies to both sides, thus limiting the circuit board.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the mounting plate is pushed downward by the control approach component, thereby pushing the two sets of wiring terminals to contact the soldering points. Thus, the corresponding cables are connected in series with the display module, switch module, power supply module and multimeter module inside the control box to form a circuit. When the switch module is turned on, the multimeter module tests the power supply status and feeds back to the display module. The circuit board is judged to be powered based on the information displayed on the display module, thus realizing the power supply test. Compared with the traditional manual test, the test is more accurate and suitable for batch testing.

[0013] 2. In this utility model, the position and number of multiple positioning posts on the board base are planned according to the limiting holes of the circuit board, and the positions of two sets of wiring terminals in multiple sets of mounting holes are arranged according to the soldering points of the circuit board, so as to realize the limiting and testing of different circuit boards and improve the applicability of the device. Attached Figure Description

[0014] Figure 1 This utility model provides a schematic diagram of the structure of a circuit board testing device;

[0015] Figure 2 This utility model provides a schematic diagram of the internal structure of a circuit board testing device;

[0016] Figure 3 This utility model provides a partial structural schematic diagram of a circuit board testing device;

[0017] Figure 4 This utility model provides a system block diagram of a circuit board testing device.

[0018] Legend: 1. Outer casing; 2. Lifting mechanism; 21. First electric cylinder; 22. Stand; 23. Vertical rod; 3. Plate positioning mechanism; 31. Plate base; 32. Positioning column; 33. Locking block; 34. Screw; 4. Control box; 5. Connecting test mechanism; 51. Second electric cylinder; 52. Limiting frame; 53. Shelf; 54. Mounting plate; 55. Mounting hole; 56. Terminal block; 57. Cable; 6. Display module; 7. Switch module; 8. Power supply module; 9. Multimeter module. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Please see Figure 1 - Figure 4This utility model provides a technical solution: a circuit board testing device, including an outer casing 1 and a control box 4. A board positioning mechanism 3 is fixedly connected to the upper side of the control box 4. A lifting mechanism 2 is installed through the inside of the control box 4. A connecting testing mechanism 5 is fixedly installed on the outer side of the lifting mechanism 2. The connecting testing mechanism 5 includes a proximity component, a mounting plate 54, terminals 56, and cables 57. Multiple sets of mounting holes 55 are evenly opened on the outer edge of the mounting plate 54. The terminals 56 are threaded to the inner wall of the mounting holes 55. The terminals 56 are electrically connected to the control box 4 through the cables 57. Two sets of terminals 56 are provided. The control box 4 contains a display module 6, a switch module 7, a power module 8, and a multimeter module 9. One set of terminals 56, display module 6, switch module 7, power module 8, and multimeter module 9 and the other set of terminals 56 are connected to the control box 4. Two sets of terminal blocks 56 are connected in series. The positions of the two sets of terminal blocks 56 in multiple sets of mounting holes 55 are arranged according to the solder points of the circuit board to enable testing of different circuit boards. The circuit board is limited by the board positioning mechanism 3, and the lifting mechanism 2 drives the connecting test mechanism 5 to move downward. When it approaches the circuit board, it stops moving and the approach component pushes the mounting plate 54 downward, thereby pushing the two sets of terminal blocks 56 to contact the solder points. Thus, they are connected in series with the display module 6, switch module 7, power module 8 and multimeter module 9 inside the control box 4 through the corresponding cables 57 to form a circuit. When the switch module 7 is turned on, the multimeter module 9 tests the power supply status and feeds back to the display module 6. The display information on the display module 6 determines whether the circuit board is powered, thus realizing the power supply test. Compared with the traditional manual test, the test is more accurate and suitable for batch testing.

[0022] like Figure 2 As shown, the approach component includes a second electric cylinder 51, a limiting frame 52, and a shelf 53. The shelf 53 is fixedly connected to the upper side of the mounting plate 54. The second electric cylinder 51 is fixedly installed in the middle of the limiting frame 52. The movable end of the second electric cylinder 51 is fixedly connected to the upper middle of the shelf 53. The shelf 53 is slidably connected to the rod of the limiting frame 52. When the second electric cylinder 51 is activated, the movable rod of the second electric cylinder 51 extends downward, pushing the shelf 53. The rod of the shelf 53 passes through the platform 22 and pushes the mounting plate 54 downward.

[0023] like Figure 2 As shown, the lifting mechanism 2 includes a first electric cylinder 21, a platform 22 and a vertical rod 23. The limiting frame 52 is fixedly connected to the upper side of the platform 22. The platform 22 is slidably connected to the vertical rod 23. The first electric cylinder 21 is fixedly connected to the lower side of the platform 22. The movable end of the first electric cylinder 21 is controlled to retract, pulling the platform 22 down along the vertical rod 23. The movement stops when it approaches the circuit board.

[0024] like Figure 2As shown, the first electric cylinder 21 is installed through the inside of the control box 4, and the vertical rod 23 is fixedly connected to the upper side of the control box 4. The control box 4 serves as a support part for mounting the first electric cylinder 21 and the vertical rod 23.

[0025] like Figure 2 As shown, the board positioning mechanism 3 includes a board base 31, positioning posts 32, a locking block 33, and a screw 34. The board base 31 is fixedly installed on the upper side of the control box 4. Multiple sets of positioning posts 32 are distributed and fixed on the upper side of the board base 31. The position and number of multiple positioning posts 32 on the board base 31 are planned according to the limit holes of the circuit board, thus making it suitable for different circuit boards.

[0026] like Figure 2 As shown, both ends of the board base 31 are rotatably connected to a set of locking blocks 33. The end of the locking block 33 is threaded with a screw 34. The end of the screw 34 abuts against the upper side of the control box 4, and the circuit board is locked onto the board base 31 by the positioning post 32. When the screw 34 is rotated, the screw 34 rotates in the end of the locking block 33 and extends downward. The end of the screw 34 is spherical. After abutting against the control box 4, it drives the locking block 33 to rotate on the side of the board base 31. The end part of the locking block 33 moves in an arc and then presses down on the side of the circuit board. The same is true on both sides, thus limiting the circuit board.

[0027] The usage and working principle of this device are as follows: When performing power-on testing using this circuit board testing device, the positions and number of multiple positioning posts 32 on the board base 31 are planned according to the limiting holes of the circuit board. The positions of two sets of terminals 56 in multiple sets of mounting holes 55 are arranged according to the solder points of the circuit board. The circuit board is secured to the board base 31 by the positioning posts 32. The screw 34 is rotated, causing it to rotate and extend downwards at the end of the locking block 33. The end of the screw 34 is spherical, and after pressing against the control box 4, it drives the locking block 33 to rotate on the side of the board base 31. The end of the locking block 33 moves in an arc and then presses down on the side of the circuit board. The same process is repeated on both sides to limit the circuit board's position. The movable end of the first electric cylinder 21 is retracted, pulling the platform 22 downward along the vertical rod 23. When it approaches the circuit board, it stops moving. The second electric cylinder 51 is then activated, and its movable rod extends downward, pushing the shelf 53. The rod of the shelf 53 passes through the platform 22 and pushes the mounting plate 54 downward, thereby pushing the two sets of terminals 56 to contact the solder joints. This allows them to be connected in series with the display module 6, switch module 7, power module 8, and multimeter module 9 inside the control box 4 via corresponding cables 57, forming a circuit. When the switch module 7 is turned on, the multimeter module 9 tests the power-on status and sends feedback to the display module 6, thus completing the power-on test of the circuit board.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A circuit board testing device, comprising an outer casing (1) and a control box (4), characterized in that: The upper side of the control box (4) is fixedly connected to the plate position mechanism (3). The inside of the control box (4) is installed through a lifting mechanism (2). The outside of the lifting mechanism (2) is fixedly installed with a connection test mechanism (5). The connection test mechanism (5) includes a proximity component, a mounting plate (54), a terminal block (56), and a cable (57). The outer edge of the mounting plate (54) is evenly provided with multiple sets of mounting holes (55). The terminal block (56) is threaded to the inner wall of the mounting hole (55). The terminal block (56) is electrically connected to the control box (4) through the cable (57). There are two sets of terminal blocks (56). The inside of the control box (4) is provided with a display module (6), a switch module (7), a power module (8), and a multimeter module (9). One set of terminal blocks (56), the display module (6), the switch module (7), the power module (8), the multimeter module (9), and the other set of terminal blocks (56) are connected in series.

2. The circuit board testing device according to claim 1, characterized in that: The approach assembly includes a second electric cylinder (51), a limiting frame (52), and a shelf (53). The shelf (53) is fixedly connected to the upper side of the mounting plate (54). The second electric cylinder (51) is fixedly installed in the middle of the limiting frame (52). The movable end of the second electric cylinder (51) is fixedly connected to the upper middle part of the shelf (53). The shelf (53) is slidably connected to the rod of the limiting frame (52).

3. The circuit board testing device according to claim 2, characterized in that: The lifting mechanism (2) includes a first electric cylinder (21), a platform (22) and a vertical rod (23). The limiting frame (52) is fixedly connected to the upper side of the platform (22). The platform (22) is slidably connected to the vertical rod (23). The first electric cylinder (21) is fixedly connected to the lower side of the platform (22).

4. The circuit board testing device according to claim 3, characterized in that: The first electric cylinder (21) is installed through the inside of the control box (4), and the vertical rod (23) is fixedly connected to the upper side of the control box (4).

5. The circuit board testing device according to claim 4, characterized in that: The plate positioning mechanism (3) includes a plate base (31), positioning posts (32), a locking block (33) and a screw (34). The plate base (31) is fixedly installed on the upper side of the control box (4), and multiple sets of positioning posts (32) are distributed and fixed on the upper side of the plate base (31).

6. The circuit board testing apparatus according to claim 5, characterized in that: Both ends of the plate base (31) are rotatably connected to a set of the locking blocks (33), and the end of the locking block (33) is threadedly connected to a screw (34), and the end of the screw (34) abuts against the upper side of the control box (4).

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