Test assembly for circuit board

Abstract

The utility model provides a testing assembly for a circuit board, which relates to the technical field of circuit board testing and comprises a fixing frame. In use, through cooperative use of the fixing frame, the first motor, the first threaded rod, the first installation frame, the second motor, the second threaded rod, the sliding groove and the test assembly, a circuit board to be tested is placed in a groove in the top of the placing frame to be positioned, the back of the circuit board faces downwards, and under the abutting and pushing effects of a plurality of rubber rods, the circuit board to be tested is fixed. Test welding spots on the back of the circuit board can be attached to a plurality of contacts at the bottom in the test frame, the contacts electrify the circuit board and obtain typical values such as voltage values and current values of the circuit board, the test frame is electrically connected with an external detection instrument, feedback signals are sent to a terminal, workers can conveniently compare the feedback signals, and in the test process, the test efficiency is greatly improved. Manual testing is not needed, the testing speed is high, and the testing efficiency of the testing assembly of the circuit board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board testing, in particular to a testing component for a circuit board. Background Art

[0002] An electronic circuit refers to electronic components, circuits and the connections between them. It generally refers to physical objects, which are circuits containing electronic devices such as transistors and field effect transistors and can achieve certain specific electrical functions. It is generally understood that an electronic circuit is a circuit composed of electronic devices.

[0003] During the production process of circuit boards, the circuit boards need to be tested to detect whether the values ​​of the components in the circuit boards are normal. Usually, personnel use a multimeter to touch the test points on the back to test the performance of the circuit boards. However, manual testing with a multimeter requires personnel to maintain focused attention and operate the stylus of the multimeter to touch the smaller test points, resulting in a slower test speed and reducing the test efficiency of the circuit boards. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that manual testing with a multimeter requires personnel to maintain focused attention and operate the stylus of the multimeter to touch a smaller test point, resulting in a slow test speed and reduced test efficiency of the circuit board, and to propose a test component for a circuit board.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a test component for a circuit board, comprising: a fixing frame, a first motor is fixedly connected to an outer surface of one side of the fixing frame, an output end of the first motor rotates and penetrates an outer surface of one side of the fixing frame, a first threaded rod is fixedly connected to the output end of the first motor, and a test component is arranged at the inner bottom of the fixing frame; a test component, the test component comprises a test frame, a threaded block is fixedly connected to the rear surface of the test frame, an inner surface of the threaded block is threadedly rotatably connected to the outer surface of the first threaded rod, a fixing rod is symmetrically fixedly connected to the inner bottom of the test frame near the two side edges, the outer surfaces of the two fixing rods are respectively sleeved with first springs, and the outer surfaces of the two fixing rods are slidably connected to a placement frame near the top position.

[0006] Preferably, the rear surface of the fixing frame is fixedly connected to the first mounting frame, the top of the first mounting frame is fixedly connected to the second motor, the output end of the second motor rotates through the top of the first mounting frame, the output end of the second motor is fixedly connected to the second threaded rod, the outer surface of the second threaded rod is threadedly rotatably connected to the mounting plate, and a plurality of rubber rods are symmetrically arranged at the bottom of the mounting plate.

[0007] Preferably, the cross section of the mounting plate is larger than the cross section of the placement frame, and the rubber rod and the placement frame are matched with each other.

[0008] Preferably, the first spring is located between the outer surfaces of the placement frame and the test frame, and the first spring and the placement frame are matched with each other.

[0009] Preferably, a slider is symmetrically fixedly connected to the bottom of the test frame, and a slide groove is symmetrically opened on the inner bottom of the fixing frame, and the slider and the slide groove are matched.

[0010] Preferably, a second mounting bracket is fixedly connected to the outer surface of the other side of the fixing bracket, an electric telescopic rod is arranged on the inner top of the second mounting bracket, a first connecting rod is fixedly connected to the top of the electric telescopic rod, and a mounting block is fixedly connected to the outer surface of the first connecting rod at a position away from the connecting block.

[0011] Preferably, the inner surface wall of the mounting block is symmetrically slidably connected with a second connecting rod, and a printing block is provided at the bottom of two of the second connecting rods.

[0012] Preferably, a second spring is sleeved on the outer surface of the second connecting rod, and the second spring is located between the outer surfaces of the printing block and the mounting block.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, when in use, through the coordinated use of the fixing frame, the first motor, the first threaded rod, the first mounting frame, the second motor, the second threaded rod, the slide groove and the test assembly, the circuit board to be tested is placed in the groove at the top of the placement frame for positioning, and its back is downward. Under the push of multiple rubber rods, the test solder joints on the back of the circuit board will fit with multiple contacts at the bottom of the test frame. The contacts are energized for the circuit board, and typical values ​​such as the voltage and current values ​​of the circuit board are obtained. The test frame is electrically connected to an external detection instrument, and the feedback signal is generated to the terminal, which is convenient for personnel to compare the feedback signal. During the test, there is no need for manual testing by personnel, the test speed is fast, and the test efficiency of the test assembly of the circuit board is improved.

[0015] 2. In the utility model, when in use, through the coordinated use of the second electric telescopic rod, the connecting block, the first connecting rod, the mounting block, the second connecting rod, the second spring and the printing block, the electric telescopic rod pulls the first connecting rod to make it move downward synchronously, and drives the mounting block to move downward. Under the buffering effect of the two second springs, the bottom of the printing block is released from the edge of the unqualified circuit board, and the marking liquid smeared on the bottom will be stained on the edge of the circuit board, which plays a striking role, facilitates personnel to quickly distinguish the circuit boards that fail the test, prevents confusion during the testing of a large number of circuit boards and affects the judgment of personnel, and improves the use effect of the test components of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a test assembly for a circuit board is proposed for the utility model;

[0017] Figure 2 A structural schematic diagram of a test assembly for a circuit board is proposed for the utility model;

[0018] Figure 3 The utility model provides a schematic diagram of the structure of a mounting plate for a test assembly of a circuit board;

[0019] Figure 4 The utility model provides a partial structural schematic diagram of a test assembly for a circuit board.

[0020] Legend: 1. Fixing frame; 2. First motor; 3. First threaded rod; 4. Test assembly; 401. Test frame; 402. Threaded block; 403. Slider; 404. Fixing rod; 405. First spring; 406. Placement frame; 5. First mounting frame; 6. Second motor; 7. Second threaded rod; 8. Mounting plate; 9. Rubber rod; 10. Second mounting frame; 11. Electric telescopic rod; 12. Connecting block; 13. First connecting rod; 14. Mounting block; 15. Second connecting rod; 16. Second spring; 17. Printing block; 18. Slide groove. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 4As shown, the utility model provides a test assembly for a circuit board, comprising: a fixing frame 1, a first motor 2 is fixedly connected to an outer surface of one side of the fixing frame 1, an output end of the first motor 2 rotates and penetrates an outer surface of one side of the fixing frame 1, a first threaded rod 3 is fixedly connected to the output end of the first motor 2, and a test assembly 4 is arranged at the inner bottom of the fixing frame 1; a test assembly 4, the test assembly 4 comprises a test frame 401, a threaded block 402 is fixedly connected to the rear surface of the test frame 401, an inner surface of the threaded block 402 is threadedly rotatably connected to the outer surface of the first threaded rod 3, a fixing rod 404 is symmetrically fixedly connected to the inner bottom of the test frame 401 near the two side edges, the outer surfaces of the two fixing rods 404 are respectively sleeved with first springs 405, and the outer surfaces of the two fixing rods 404 are slidably connected to a placement frame 4 near the top position 06, the rear surface of the fixing frame 1 is fixedly connected with the first mounting frame 5, the top of the first mounting frame 5 is fixedly connected with the second motor 6, the output end of the second motor 6 rotates through the top of the first mounting frame 5, the output end of the second motor 6 is fixedly connected with the second threaded rod 7, the outer surface of the second threaded rod 7 is threadedly rotatably connected with the mounting plate 8, a plurality of rubber rods 9 are symmetrically arranged at the bottom of the mounting plate 8, the cross section of the mounting plate 8 is larger than the cross section of the placement frame 406, the rubber rods 9 are matched with the placement frame 406, the first spring 405 is located between the outer surface of the placement frame 406 and the test frame 401, the first spring 405 is matched with the placement frame 406, the bottom of the test frame 401 is symmetrically fixedly connected with a slider 403, the inner bottom of the fixing frame 1 is symmetrically provided with a slide groove 18, the slider 403 is matched with the slide groove 18.

[0024] The effect achieved by the entire embodiment 1 is that when testing the circuit board, the circuit board to be tested is first placed on the top of the placement frame 406, so that its back side faces downward and the edge is in contact with the inner bottom of the placement frame 406, which plays a limiting role. The position of the pad test point on the back side corresponds to the position of multiple contacts in the lower test frame 401. When the second motor 6 is started and the output end of the second motor 6 drives the second threaded rod 7 to rotate clockwise, the mounting plate 8 will move downward along its surface, and vice versa, the mounting plate 8 will extend the surface and move upward. When the mounting plate 8 moves downward, the bottoms of the multiple rubber rods 9 symmetrically arranged at the bottom will respectively resist the edges of the circuit board, and by pushing the circuit board, the placement frame 406 slides downward along the surfaces of the two fixing rods 404 after being subjected to force. After the two first springs 405 are squeezed and deformed and contracted, the test points on the back side of the circuit board that are resisted will fit on multiple contacts, and the contacts are the circuit board. Power is turned on, and typical values ​​such as voltage and current values ​​of the circuit board are obtained. The test frame 401 is electrically connected to the external detection instrument, and the feedback signal is generated to the terminal, so that the personnel can compare the feedback signal. This part is an existing mature technology, and its principle is fully disclosed and will not be repeated here. After the test is completed, the mounting plate 8 is reset and moved upward, and multiple rubber rods 9 are moved upward synchronously to release the resistance and fixation of the tested circuit board. Under the elastic reset action of the two first springs 405, the placement frame 406 is moved up and reset along the two fixing rods 404. If the circuit board test fails, the first motor 2 is started. When the output end of the first motor 2 drives the first threaded rod 3 to move clockwise, the threaded block 402 will drive the test frame 401 to move in the direction of the printing block 17. The test frame 401 slides in the two slide grooves 18 through the two sliders 403 set at the bottom until it conflicts with one end of the slide groove 18, so that the tested circuit board is under the printing block 17.

[0025] Embodiment 2, as Figure 1-Figure 4 As shown, a second mounting frame 10 is fixedly connected to the outer surface of the other side of the fixing frame 1, an electric telescopic rod 11 is arranged on the inner top of the second mounting frame 10, a first connecting rod 13 is fixedly connected to the top of the electric telescopic rod 11, a mounting block 14 is fixedly connected to the outer surface of the first connecting rod 13 at a position away from the connecting block 12, a second connecting rod 15 is symmetrically slidably connected to the inner surface wall of the mounting block 14, a printing block 17 is arranged on the bottom of the two second connecting rods 15, a second spring 16 is sleeved on the outer surface of the second connecting rod 15, and the second spring 16 is located between the printing block 17 and the outer surface of the mounting block 14.

[0026] The effect achieved by the entire embodiment 2 is that, when in use, the electric telescopic rod 11 arranged at the top of the second mounting frame 10 is started. When the telescopic end thereof contracts, the connecting block 12 is pulled, and the first connecting rod 13 is synchronously moved downward, and the mounting block 14 is driven to move synchronously. Since the printing block 17 is arranged at the bottom of the two second connecting rods 15, and the two second springs 16 extending from the outer surfaces of the two second connecting rods 15 respectively squeeze it, the bottom of the printing block 17 will contact the edge of the circuit board, and the second spring 16 will be squeezed by the mounting block 14, and the second spring 16 will increase the reset force to squeeze the printing block 17. The bottom of the printing block 17 is coated with a marking liquid. After the circuit board is attached, the marking liquid will adhere to the edge of the circuit board to play a marking role, thereby preventing unqualified circuit boards from being easily confused with qualified products during the test process.

[0027] Working principle: When in use, place the circuit board to be tested with its back facing downward in the top groove of the placement frame 406, and the position of the pad test point on the back thereof corresponds to the position of multiple contacts in the test frame 401 below. Start the second motor 6 arranged on the top of the first mounting frame 5. When the output end of the second motor 6 drives the second threaded rod 7 to rotate clockwise, the mounting plate 8 will move downward along its surface, and multiple rubber rods 9 arranged at the bottom thereof will respectively resist the edges of the circuit board, and push the test circuit board through the resistance. The placement frame 406 is forced to slide downward along the surface of the two fixed rods 404. After the two first springs 405 are squeezed and deformed and contracted, the test points on the back of the circuit board that is resisted will fit on multiple contacts. The contacts are energized for the circuit board, and typical values ​​such as the voltage value and current value of the circuit board are obtained. The test frame 401 is electrically connected to an external detection instrument, and the feedback signal is sent to Terminal, convenient for personnel to feedback the line, this part is the existing mature technology, its principle has been fully disclosed, no longer repeated here, after the test is completed, if the circuit board test fails, start the first motor 2 arranged on the outer surface of one side of the fixing frame 1, when the output end of the first motor 2 drives the first threaded rod 3 to move clockwise, the threaded block 402 will drive the test frame 401 to move in the direction of the printing block 17, so that the tested circuit board is under the printing block 17, start the electric telescopic rod 11, when its telescopic end contracts, it will pull the connecting block 12, the first connecting rod 13 moves down synchronously to drive the mounting block 14 to move synchronously, under the buffering effect of the two second springs 16, after the printing block 17 is attached to the circuit board, the marking liquid smeared on the bottom will adhere to the edge of the circuit board to play a marking role, to prevent unqualified circuit boards from being easily confused with qualified products during the test, and to improve the use effect of the test components of the circuit board.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A test assembly for a circuit board, characterized in that: include: A fixing frame (1), a first motor (2) being fixedly connected to an outer surface of one side of the fixing frame (1), an output end of the first motor (2) rotatingly passing through an outer surface of one side of the fixing frame (1), a first threaded rod (3) being fixedly connected to the output end of the first motor (2), and a test assembly (4) being arranged at an inner bottom of the fixing frame (1); A test assembly (4), the test assembly (4) comprising a test frame (401), a threaded block (402) being fixedly connected to the rear surface of the test frame (401), the inner surface of the threaded block (402) being threadably connected to the outer surface of the first threaded rod (3), a fixed rod (404) being symmetrically fixedly connected to the inner bottom of the test frame (401) near the edges on both sides, the outer surfaces of the two fixed rods (404) being respectively sleeved with a first spring (405), and the outer surfaces of the two fixed rods (404) being slidably connected to a placement frame (406) near the top.

2. The test assembly for a circuit board according to claim 1, characterized in that: The rear surface of the fixing frame (1) is fixedly connected to a first mounting frame (5), the top of the first mounting frame (5) is fixedly connected to a second motor (6), the output end of the second motor (6) rotates through the top of the first mounting frame (5), the output end of the second motor (6) is fixedly connected to a second threaded rod (7), the outer surface of the second threaded rod (7) is threadedly connected to a mounting plate (8), and a plurality of rubber rods (9) are symmetrically arranged at the bottom of the mounting plate (8).

3. The test assembly for a circuit board according to claim 2, characterized in that: The cross section of the mounting plate (8) is larger than the cross section of the placement frame (406), and the rubber rod (9) and the placement frame (406) are arranged in a matching manner.

4. The test assembly for a circuit board according to claim 1, characterized in that: The first spring (405) is located between the outer surface of the placement frame (406) and the test frame (401), and the first spring (405) and the placement frame (406) are matched with each other.

5. The test assembly for a circuit board according to claim 4, characterized in that: The bottom of the test frame (401) is symmetrically fixedly connected with a slider (403), the inner bottom of the fixed frame (1) is symmetrically provided with a slide groove (18), and the slider (403) and the slide groove (18) are matched.

6. The test assembly for a circuit board according to claim 1, characterized in that: A second mounting frame (10) is fixedly connected to the outer surface of the other side of the fixing frame (1), an electric telescopic rod (11) is arranged on the inner top of the second mounting frame (10), a first connecting rod (13) is fixedly connected to the top of the electric telescopic rod (11), and a mounting block (14) is fixedly connected to the outer surface of the first connecting rod (13) at a position away from the connecting block (12).

7. The test assembly for a circuit board according to claim 6, characterized in that: The inner surface wall of the installation block (14) is symmetrically slidably connected with a second connecting rod (15), and a printing block (17) is arranged at the bottom of the two second connecting rods (15).

8. The test assembly for a circuit board according to claim 7, characterized in that: The outer surface of the second connecting rod (15) is sleeved with a second spring (16), and the second spring (16) is located between the outer surface of the printing block (17) and the mounting block (14).

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