Device for simultaneously testing multiple circuit boards

Abstract

The utility model belongs to the technical field of circuit board testing, and particularly relates to a device for simultaneously testing multiple circuit boards. A device for simultaneously testing multiple circuit boards provided by the utility model comprises a testing mechanism, a plurality of circuit boards and a control computer, the testing mechanism is composed of a bottom plate, two side plates and a panel, the two side plates are located at two sides above the bottom plate, the panel is located above the bottom plate and is fixedly connected with the middle of the two side plates, and the control computer is connected with the control computer. A plurality of positioning grooves are formed in the panel, the circuit boards are placed in the positioning grooves, a hand clamping plate is arranged on one side of the upper portion of the two side plates, a plurality of quick chucks are arranged on one side of the hand clamping plate, and the bottoms of the quick chucks are jointly connected with a test needle plate. A plurality of test head needles are correspondingly arranged on the test needle plate at the position of the circuit board, and a plurality of test motors corresponding to the position of the circuit board are arranged on the bottom plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board testing, and particularly relates to a device for simultaneously testing multiple circuit boards of a circuit board. Background Art

[0002] A motor drive circuit board is a chip integrated with a CMOS control circuit and a DMOS power device. Using it, a complete motion control system can be formed with a main processor, a motor, and an incremental encoder, and it can be used to drive inductive loads such as DC motors, stepper motors, and relays.

[0003] Most of the existing motor drive circuit boards are tested manually during detection, and the measured current, voltage, speed, etc. are judged manually. Since there are many parameters judged manually, errors are likely to occur during long-term judgment, and only one single piece can be measured at the same time, resulting in low efficiency of circuit board testing, and there are problems of high labor cost and uncontrollable human quality in the detection of motor drive circuit boards. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that most of the existing motor drive circuit boards are tested manually during detection, and the measured parameters are judged manually. Since there are many parameters judged manually, errors are likely to occur during long-term judgment, and only one single piece can be measured at the same time, resulting in low efficiency of circuit board testing.

[0005] To solve the above technical problems, the technical solution provided by the utility model is a device for simultaneously testing multiple circuit boards of a circuit board, including a testing mechanism, multiple circuit boards, and a control computer. The testing mechanism is composed of a bottom plate, two side plates, and a panel. Among them, the two side plates are located on both sides above the bottom plate, the panel is located above the bottom plate, and is fixedly connected to the middle of the two side plates. A plurality of positioning grooves are arranged on the panel, and the multiple circuit boards are placed inside the positioning grooves. A clamping plate is arranged on one side above the two side plates, and a plurality of quick clamps are arranged on one side of the clamping plate. The bottoms of the plurality of quick clamps are commonly connected to a test needle board. A plurality of test head needles are correspondingly arranged on the test needle board at the positions of the circuit boards. A plurality of test motors corresponding to the positions of the circuit boards are arranged on the bottom plate; a first acquisition PCB board electrically connected to the control computer is arranged on the test needle board, and the control computer is provided with a second acquisition PCB board electrically connected to the first acquisition PCB board. A plurality of current and voltage meters connected to the second acquisition PCB board are arranged on the control computer.

[0006] Preferably, the overall shape of the side plate is a "convex" shape, and both ends of the panel are erected on both sides of the middle of the "convex" shape structure.

[0007] Preferably, a start button is provided in the middle of the clamping plate, and the start button is electrically connected to the control computer.

[0008] Preferably, both sides of the clamping plate are fixedly connected to the quick clamp through the guiding installation grooves, and the number of the quick clamps is two which are symmetrically arranged.

[0009] Preferably, the quick clamp is composed of a fixing frame, a pull handle, a connecting rod and an adjusting rod. The fixing frame is fixedly connected to one side of the clamping plate. The top of one side of the fixing frame is rotatably connected to one end of the pull handle. The fixing frame is longitudinally slidably connected to the adjusting rod at the bottom of the pull handle. The pull handle is of an overall L-shaped structure, and the bending part of the L-shaped structure of the pull handle is rotatably connected to the connecting rod. The other end of the connecting rod is rotatably connected to the top of the adjusting rod. The bottom of the adjusting rod is fixedly connected to the test probe board.

[0010] Preferably, both sides of the test probe board are slidably connected to the side plates up and down. Guide rods are connected below the four corners of the test probe board. The bottoms of the guide rods pass through the panel, and linear bearings are arranged on the panel at the positions of the guide rods.

[0011] Preferably, the multiple test head pins are composed of metal probes with various different lengths and different diameters.

[0012] Preferably, the first acquisition PCB board is electrically connected to the test motor and the multiple test head pins.

[0013] Preferably, the control computer is an all-in-one computer, and a protective frame made of sheet metal bending is arranged outside the control computer. The second acquisition PCB board and the current-voltage meter are both located on the protective frame. A power socket is arranged on one side of the protective frame, and a power supply is connected to the power socket inside the protective frame.

[0014] The advantages of the present utility model compared with the prior art are as follows:

[0015] This test device can detect multiple circuit boards simultaneously by manually pressing down the test probe board, and can read the test parameters through the connected control computer, and automatically compare and record the parameters. It does not require manual judgment of the parameters, improves the production efficiency, and the automatic measurement of parameters and the comparison of data make the product quality controllability higher than that of manual work, improves the quality, and can store the test data for easy traceability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the structure of a multi-board simultaneous test device for circuit boards of the present utility model Figure 1 。

[0017] Figure 2 is the structure of a multi-board simultaneous test device for circuit boards of the present utility model Figure 2。

[0018] Figure 3 This is the test mechanism structure of a multi-board simultaneous testing device for a circuit board of the present utility model Figure 1 。

[0019] Figure 4 This is the test mechanism structure of a multi-board simultaneous testing device for a circuit board of the present utility model Figure 2 。

[0020] As shown in the figure:

[0021] 1. Circuit board; 2. Control computer; 3. Bottom plate; 4. Side plate; 5. Panel; 6. Positioning groove; 7. Clamping plate; 8. Quick chuck; 9. Test needle board; 10. Multiple test head needles; 11. Test motor; 12. First collected PCB board; 13. Second collected PCB board; 14. Ammeter and voltmeter; 15. Start button; 16. Guide installation groove; 17. Fixed frame; 18. Pull handle; 19. Link; 20. Adjusting rod; 21. Guide rod; 22. Linear bearing; 23. Protective frame; 24. Power socket; 25. Power supply Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations

[0024] Embodiment 1:

[0025] As described in the specification appendix Figures 1-4As shown in the figure, a multi-board simultaneous testing device for a circuit board 1 includes a testing mechanism, multiple circuit boards 1, and a control computer 2. The testing mechanism is composed of a bottom plate 3, two side plates 4, and a panel 5. Among them, the two side plates 4 are located on both sides above the bottom plate 3, the panel 5 is located above the bottom plate 3 and is fixedly connected to the middle of the two side plates 4. The side plate 4 is integrally in a "convex" shape structure, and both ends of the panel 5 are erected on both sides of the middle of the "convex" shape structure. A plurality of positioning grooves 6 are provided on the panel 5, and multiple circuit boards 1 are placed inside the positioning grooves 6. On one side above the two side plates 4, there is a clamping plate 7. In the middle of the clamping plate 7, there is a start button 15, and the start button 15 is electrically connected to the control computer 2. On one side of the clamping plate 7, there are a plurality of quick chucks 8. The bottoms of the plurality of quick chucks 8 are commonly connected to a test probe board 9. Both sides of the test probe board 9 are slidably connected to the side plates 4 up and down. And below the four corners of the test probe board 9, there are guide rods 21. The bottoms of the guide rods 21 pass through the panel 5, and the panel 5 is provided with linear bearings 22 at the positions of the guide rods 21. A plurality of test head pins 10 are composed of metal probes with various different lengths and different diameters. On the test probe board 9, there are a plurality of test head pins 10 corresponding to the positions of the circuit boards 1. On the bottom plate 3, there are a plurality of test motors 11 corresponding to the positions of the circuit boards 1.

[0026] In the present utility model, both sides of the clamping plate 7 are fixedly connected to the quick chucks 8 through guide installation grooves 16, and the number of quick chucks 8 is two symmetrically arranged. The quick chuck 8 is composed of a fixed frame 17, a pull handle 18, a connecting rod 19, and an adjusting rod 20. Among them, the fixed frame 17 is fixedly connected to one side of the clamping plate 7, and the top of one side of the fixed frame 17 is rotatably connected to one end of the pull handle 18. The fixed frame 17 is longitudinally slidably connected to the adjusting rod 20 at the bottom of the pull handle 18. The pull handle 18 is integrally in an L-shaped structure, and the bent part of the L-shaped structure of the pull handle 18 is rotatably connected to the connecting rod 19. The other end of the connecting rod 19 is rotatably connected to the top of the adjusting rod 20. The bottom of the adjusting rod 20 is fixedly connected to the test probe board 9.

[0027] In the present utility model, a first acquisition PCB board 12 electrically connected to the control computer 2 is provided on the test probe board 9. The first acquisition PCB board 12 is electrically connected to the test motor 11 and a plurality of test head pins 10. The control computer 2 is provided with a second acquisition PCB board 13 electrically connected to the first acquisition PCB board 12. On the control computer 2, there are a plurality of current voltage meters 14 connected to the second acquisition PCB board 13. The control computer 2 is an all-in-one computer, and a protective frame 23 with sheet metal bending is provided outside the control computer 2. The second acquisition PCB board 13 and the current voltage meters 14 are both located on the protective frame 23, and a power socket 24 is provided on one side of the protective frame 23. The power socket 24 is connected to a power supply 25 inside the protective frame 23.

[0028] In the specific implementation of the present utility model, the first acquisition PCB board 12 is connected to the second acquisition PCB board 13 through a connecting wire. Then, an external power supply is connected to the power socket 24, and the power socket 24 sends electricity to the power supply 25 for voltage reduction and supplies power to the entire device. The circuit board 1 for motor control is placed in a plurality of positioning grooves 6 on the panel 5. By pulling down the handle 18 of the quick chuck 8, the quick chuck 8 drives the test probe board 9 to move downward through the adjusting rod 20, so that a plurality of test head needles 10 are in contact with the circuit board 1. Then, press the start button 15 to start the test. The circuit board 1 drives the test motor 11 to start, and the first acquisition PCB board 12 collects the data of the test motor 11 and transmits it to the second acquisition PCB board 13. At the same time, the data of the corresponding current and voltage meter 14 is read, and all the data is input into the control computer 2. The system software in the control computer 2 performs data comparison and analysis through the internally set parameters, and the result is displayed on the display screen. At the same time, the software records the data.

[0029] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the specific implementation manners is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A multi-board simultaneous testing device for circuit boards, comprising a testing mechanism, a plurality of circuit boards, and a control computer, characterized in that: The test mechanism is composed of a bottom plate, two side plates and a panel. Among them, the two side plates are located on both sides above the bottom plate, the panel is located above the bottom plate and is fixedly connected to the middle of the two side plates. A plurality of positioning grooves are provided on the panel, and a plurality of circuit boards are placed inside the positioning grooves. On one side above the two side plates, there is a clamping plate, and a plurality of quick clamps are provided on one side of the clamping plate. The bottoms of the plurality of quick clamps are commonly connected to a test needle plate. A plurality of test head needles are correspondingly arranged on the test needle plate at the position of the circuit board. A plurality of test motors corresponding to the positions of the circuit boards are provided on the bottom plate; A first acquisition PCB board electrically connected to a control computer is provided on the test needle plate, and a second acquisition PCB board electrically connected to the first acquisition PCB board is provided on the control computer. A plurality of current-voltage meters connected to the second acquisition PCB board are provided on the control computer.

2. The multi-board simultaneous testing device for a circuit board according to claim 1, wherein: The overall shape of the side plate is a "convex" structure, and both ends of the panel are erected on both sides of the middle of the "convex" structure.

3. The multi-board simultaneous testing device for circuit boards according to claim 1, characterized in that: A start button is provided in the middle of the clamping plate, and the start button is electrically connected to the control computer.

4. A multi-board simultaneous testing device for a circuit board according to claim 1, characterized in that: Both sides of the clamping plate are fixedly connected to the quick clamps through guiding installation grooves, and the number of quick clamps is two symmetrically arranged.

5. The multi-board simultaneous testing device for circuit boards according to claim 1, characterized in that: The quick clamp is composed of a fixing frame, a pull handle, a connecting rod and an adjusting rod. The fixing frame is fixedly connected to one side of the clamping plate. The top of one side of the fixing frame is rotatably connected to one end of the pull handle. The fixing frame is longitudinally slidably connected to the adjusting rod at the bottom of the pull handle. The pull handle is of an overall L-shaped structure, and the bent part of the L-shaped structure of the pull handle is rotatably connected to the connecting rod. The other end of the connecting rod is rotatably connected to the top of the adjusting rod. The bottom of the adjusting rod is fixedly connected to the test needle plate.

6. The multi-board simultaneous testing device for circuit boards according to claim 1, characterized in that: Both sides of the test needle plate are slidably connected to the side plates up and down, and guide rods are connected below the four corners of the test needle plate. The bottoms of the guide rods pass through the panel, and linear bearings are provided on the panel at the positions of the guide rods.

7. A multi-board simultaneous testing device for circuit boards according to claim 1, characterized in that: The plurality of test head needles are composed of metal probes with various different lengths and different diameters.

8. A multi-board simultaneous testing device for a circuit board according to claim 1, characterized in that: The first acquisition PCB board is electrically connected to the test motors and the plurality of test head needles.

9. The multi-board simultaneous testing device for circuit boards according to claim 1, wherein: The control computer is an all-in-one computer, and a protective frame made of sheet metal bending is provided outside the control computer. The second acquisition PCB board and the current-voltage meters are both located on the protective frame. A power socket is provided on one side of the protective frame, and a power supply is connected to the power socket inside the protective frame.

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